Technical Sessions

Technical Sessions that Inform

 

The 32nd Annual Florida SME Regional Mining Conference brings together some of the brightest minds in the mining industry. To learn more about available sessions, please view the complete list below. FLSME is proud to present more than 40+ technical sessions featuring the leading practitioners in mining in the southeast.

 

 

Wednesday Time
General Session - Ed Muraski

Aggregates and Our Communities
J. Michael O’Berry, LEP, CESCO
Manager, Environmental Services – Southeast Division Vulcan Materials Company

Mining for Message Gold: Telling Your Story on Your Terms, Turf, and Timeline
Ron Sachs
CEO at Sachs Media Group

Heavy Minerals and Their Applications
Andrew Romeo
Minerals Business Manager, The Chemours Company

Mine Permitting and Regulatory Updates
Timothy Riley
Partner, Hopping Green & Sams

8:30 am - 11:30 am
Geology - Chair: Gregory O’Neal, Golder Associates, Inc

Reducing Risks of Internal Instability during Drilling at Earthen Embankments
Suppakit Chomtid, Amec Foster Wheeler | 1:30pm

Vertical drilling is commonly used as part of a geotechnical investigation program and/or instrumentation installation at existing earthen embankments. Typically, the vertical drillings for the existing earthen embankment were conducted through the embankment crest and/or along the downstream slope of the embankment by using the water, compressed air and various drilling fluids while drilling through the earthen embankment structure and its foundation materials. While these techniques have often been used successfully, a number of cases have been documented where the drilling activities resulted in internal instability (hydraulic fracturing and erosion) within existing embankments. These can be evidenced by the abrupt change of phreatic water level, borehole collapse, heave and/or blowout on the embankment slopes. To avoid potential damage during drilling, internal stability risk assessments need to be performed, and proper drilling procedures and precautions should be developed prior to drilling at existing earthen embankments.


Construction of Lower Florida Well for Sand Mining, A Public-Private Partnership
Elliott Mallard, Kleinfelder Inc; Traci Johns, Vulcan Materials Company | 2:10pm

The St Johns River Water Management District (SJRWMD) will partner with Vulcan Materials Company (VMC) at its 1,131-acre Grandin sand mining facility in Putnam County. The mine has held a consumptive use permit for more than 30 years and currently uses water from the Upper Floridan aquifer to process sand and maintain water levels in its dredge lake, as well as for typical domestic water use for employees and minor landscape irrigation. The project includes construction of a Lower Floridan aquifer production well, construction of a Lower Floridan aquifer monitoring well and conversion of the Grandin Sand Plant to use the Lower Floridan aquifer as its water source. Moving groundwater withdrawals from the upper to lower Floridan aquifer has the potential to benefit those lakes, rivers, streams and wetlands that have a hydrologic connection to the Upper Floridan aquifer. The project supports SJRWMD’s minimum flows and levels prevention/recovery strategy goals. This project also has the support of local NGO groups. The Lower Floridan Aquifer can be considered an alternate source for industrial/commercial water supply as demonstrated by the SJRWMD – VMC partnership. The water quality from the Lower Floridan Aquifer is comparable to the Upper Floridan Aquifer in specific areas of FL. Although the installation costs of the Lower Floridan Aquifer wells may be more expensive for industrial/commercial uses, the use of this aquifer may be viewed as a non-competing water source by government agencies, residents and NGO’s.


The Role of Erosion and Sediment Remobilization in the Formation of Trail Ridge and Virginia Fall Zone Mineral-Sands Deposits
Fredric Pirkle and Daniel Conrad, Gannet Flemming; Kristen Woods, The Chemours Company Florida Plant | 3:15pm

Understanding and modeling the geological history of sediments provides insights into the paleo-environment, climate, and sea-levels during the formation of mineral-sands deposits. Trail Ridge, a prominent physiographic feature spanning northeast Florida and southeast Georgia, contains economically significant deposits of heavy-mineral sands that formed at the height of a marine transgression, deposits that formed as a result of the remobilization of mineralized sands, and potential deposits destroyed by erosion. Mineral-sand deposits along the Virginia Fall Zone formed in fluvial/deltaic environments with salt marsh influences and have been modified by modern erosion. Deposits from the Trail Ridge and the Virginia Fall Zone will be discussed.


NURE Data in the Search for 21st Century Metals
Van Price, Advanced Environmental Solutions, LLC; James Cook, James Heffner and Glen Koller; David Bush, University of Indiana | 3:55pm

Industrialization has depended on mineral commodities. From smooth rocks for slings and clay for vessels, quartz for weapons and utensils, copper, tin, iron, aluminum, and so on through millennia. The commodity of choice was prized sufficiently to be obtained at great effort. Sailors risked the edge of the earth to reach secret tin mines in Cornwall. Coal and oil to fuel civilization in the 19th and 20th centuries have been obtained at great expenditure of capitol and life. In 1970, uranium was the prized element. The National Uranium Resource Evaluation program tested thousands of samples for uranium and associated elements, now the prized rare elements. We discuss the NURE dataset indicative of potentially viable sources for at risk 21st century mineral needs.


1:30 pm - 4:30 pm
Reclamation - Chair: Carrie Kelly, Flatwoods Consulting

Beyond the Mine Boundary: Restoring Ecosystems for Everyone
John Kiefer, Amec Foster Wheeler; Shelly Tornton, Mosaic | 1:30pm

Mosaic has teamed with a variety of organizations to establish a vast network of wildlife preserves in west-central Florida. These established highly-visited public parks, and reversed the decline of threatened scrub jay populations. The company is instituting a multi-decadal plan to create a wildlife habitat network spanning a 5 county region. The corporate rationale for this program has some foundation in government regulation, but much of it is voluntary, is science driven, and stems from the outcomes of a public outreach program. The company fills a conservation niche that could serve as a model for large-scale interests across many settings.


Adaptive Management and Reclamation of a Limestone Quarry in Miami Dade County, FL
Lori Sandville, Vulcan Materials Company; Ed Murawski, Kleinfelder | 2:10pm

Reclamation in Miami-Dade County has been governed by U.S. Army Corps of Engineers (ACOE) permits. These ACOE permits include a reclamation design submitted by a consultant on behalf of the Miami-Dade Limestone Products Association and a demonstration project requirement. This reclamation design has a “one shoe-fits all” approach and has not worked. Florida Rock constructed a demonstration project that included the permitted design, as well as an area that was based upon work completed in a non-mandatory reclamation area. This reclamation was based upon a revised design. The results are in and they are positive! The revised design demonstrated that reclamation requirements were achieved within three years. Reclamation and specifically wetland mitigation often requires the reclamation manager to act on data and respond with new ideas.


Creation of an Island in a Limestone Mine Pit to Support Waterfowl and Amphibian Species in West Central Florida
Jeff Medcalf, S&ME Inc.; Kwaku Boakye, LafargeHolcim; Larry Moron, S&ME Inc. | 3:15pm

This paper presents the implementation of the creation of a 13-acre island to benefit waterfowl and amphibians in an existing limestone mine pit. The creation of the island was part of mitigation for effects of long-term mining operations at the Holcim Limestone Quarry, Crystal River, Florida. The creation of the island involved a number of design considerations including: analysis of properties of the island substrate; pit hydro-period conditions; development of a grading plan and revegetation plan to support wetlands, uplands, and littoral shelves; and, design of an irrigation system for upland establishment. The implementation of the plan included; grading to support the hydro-periods associated with upland, littoral shelves and wetlands. These areas were seeded and planted with select herbaceous, shrub and tree species. The creation of the island began in November, 2016 and was completed in February, 2017. Currently, the progression of island habitats are integratively monitored/maintained to insure that the design objectives of the island are met.


Reclamation of an Abandoned Lime Quarry in the UK with Karstic Limestone
Marco Isola and Eric Michiels, Maccaferri Inc. | 3:55pm

Mining activities can weaken the soil and may result in large areas with weak foundation soil or formation of localized sinkhole subsidence. Construction of structures over these type of foundation conditions can be very challenging. A project for a new housing development was recently completed in Oreston, Plymouth, Devon (United Kingdom) in an abandoned limestone quarry that was in-filled. Due to the presence of karstic limestone, it was proposed to reuse site won quarry fill to construct a load transfer platform reinforced with ultra-high strength uniaxial geogrids to mitigate against potential formation of sinkholes. The adopted method was proposed to provide an alternative to probing and piling which due to the contamination present on site represented an unacceptable risk to environmental receptors.


1:30 pm - 4:30 pm
Innovation in Technology - Chair: Mike Rublaitus, Agru America

Phosphate Rock Quality Improvements and Reagent Optimization Using Real Time Elemental Analysis
Henry Kurth, Scantech International Pty Ltd | 1:30 pm

Real time analysis using Prompt Gamma Neutron Activation Analysis (PGNAA) has been successfully used to improve plant performance in major phosphate operations. The high specification GEOSCAN-M system can representatively and accurately measure multiple elements through the full conveyed flow over time increments as short as thirty seconds. This allows small tonnages to be diverted to multiple stockpiles based on their quality and subsequently blended to achieve a consistent and controlled quality feeding the acid reactor. This, together with moisture analysis, enables sulphate addition, phosphate recovery and calcium removal to be optimised. Measuring phosphorous in the gypsum waste in conveyed filter cake can be used to optimise phosphoric acid recovery by identifying unreacted phosphate rock and residual phosphoric acid in the filter cake.


Liner Integrity Monitoring System
Clay Reichert, GSE Environmental | 2:10 pm

For critical applications in gypsum and water storage, there is a large benefit to being able to quickly detect and then repair a leak in a geomembrane liner. The Liner Integrity Monitoring System (LIMS) is a relatively new system that allows for real-time, permanent leak-detection monitoring of a polyethylene geomembrane. The LIMS is comprised of a network of CombiModules which are welded into the geomembrane and a Central Monitoring Unit which analyzes the electrical fields above and below the liner. Changes in the electrical field may indicate a leak in the liner. The MSS software analyzes the electric fields and other factors such as precipitation to determine if a leak is present. The LIMS can send an instant notification when a leak is detected.


Innovations in Dual Laminate Piping extend capabilities to injection molded fittings
Michael Krauss, AGRU | 3:15pm

An overview of technology advancements in dual laminate piping and fitting systems that allow for internal corrosion protection using PVDF pipe, and external corrosion protection utilizing fiberglass. New advancements in technology allow PVDF pipes and fittings to be chemically treated, creating a three dimensional surface for the bonding of fiberglass to the exterior of standard pipe and utilize cost effective standard stock fittings. Prior systems were limited to pipe and fittings had to be custom made, driving the costs for this type of piping system. This presentation will be a practical overview on how new dual laminate piping technology can be utilized in highly corrosive mining applications.


The Advancement in Tailings Dewatering Technologies to Produce Thickened Tailings / Paste and its Applicability in the Phosphate Industry
Craig Vucinovich, Golder Associates | 3:55pm

Dewatering technologies to produce thickened none segregating mixtures has been successfully used in the mining industry to produce cemented paste backfill for ground stabilization in underground workings and to produce thickened / paste for disposal in surface impoundments, facilitating process water reuse and reducing the volume of material to be managed. This has the added benefits of improving impoundment stability and of facilitating the reclamation and closure of these storage facilities. This paper present an overview of these dewatering technologies and a case study on how advancement made in dealing with clays and ultrafine material could potentially find application in phosphate mining operations.


1:30 pm - 4:30 pm
   
Thursday Time
Chemical Processing - Chair: Lian Blackwelder, Mosaic

Feature Everyday DAP Plant Needs
John Wing, John Wing LLC | 8:30 am

Many DAP plants were built decades ago when ammonia and energy were cheap. There was less emphasis on the environment and product quality. Advanced technology in recent years have rendered DAP plants far more efficient, economic, and operable. Older plants struggled to compete in today’s market until they updated to modern technology. This presentation describes several types of process improvements that were successfully retrofitted into numerous DAP plants in Florida, Louisiana, and Idaho. These modifications achieved greatly reduced ammonia losses, eliminated need for steam to vaporize ammonia, reduced emission of ammonia and fluorine to atmosphere, major capacity increase in same equipment, product is harder, rounder, and more uniform in size, plant operation is cleaner, more stable and resistant to upsets.


Simultaneous Recovery of Heavy Rare Earth Elements and Uranium from Wet Process Phosphoric Acid
Shengxi Wu and Liangshi Wang, National Research Canter for Rare Earth Materials; Patrick Zhang, FIPR Institute; Hassa El-Shall and Brij Moudgil, University of Florida; Xiawei Huang, National Research Center for Rare Earth Materials | 9:10 am

A new approach was investigated for simultaneous recovery of heavy rare earth elements (HREEs) and uranium (U) from wet process phosphoric acid. This approach involves pre-treatment of the acid, solvent extraction with D2EHPA for HREEs and U, and selective stripping for HREEs separation from U. Solvent mixtures of di-(2-ethylhexyl) phosphoric acid (D2EHPA) and tri-butyl-phosphate (TBP) or tri-octyl-phosphine oxide (TOPO) achieved higher U recovery, but gave unsatisfactory HREEs recovery. Two-stage extraction with D2EHPA alone rendered accumulative extraction efficiencies of 89.44 and 94.19 for HREEs and U, respectively.


Effective Management Utilization of Lime Sludge Ponds - The LaBorde Method
Phong Vo, Mosaic Fertilizer, LLC; Robert Werner, Ardaman Associates, Inc. | 10:15 am

Considering the large volumes of acidic process water eventually requiring treatment as part of gypsum stack closures and the associated lime sludge disposal requirements, conventional on-land disposal methodologies need to be optimized the reduce the land area needed for sedimentation ponds. Construction and operation costs associated with building and operating the sludge settling areas, and reclamation costs during abandonment need to be factored in when evaluating sludge management strategies. Through years of experience, innovations, a new method of lime sludge management was created by a supervisor employee at Mosaic. The new method of lime sludge management has been successfully tested and monitored by a team of civil engineers. The new method of lime sludge management was fully implemented at the Mosaic’s Faustina Gypsum Stack System in Louisiana. As of today, this lime sludge management strategy has allowed Mosaic to continue extending the storage life of the lime sludge pond at Faustina for many years beyond its original 2011 forecasted storage depletion date, and avoided spending over $4 million dollars for construction of additional lime sludge ponds. The authors will describe the new lime sludge management technique. The authors will also describe testing procedures and engineering analysis to validate the method prior to full application.


Application of PHOSFLOW Antiscalants in Phosphoric Acid Plants
John Carr and John Lampariello, Solvay | 10:55 am

Scaling in the filtration section and heat exchangers during the phosphoric acid production process continues to be a prevalent problem across the globe, frequently making one of these unit processes a bottleneck. The scale composition can vary between the two processes and from plant to plant and often it’s cleaning and descaling is inefficient affecting process robustness and production capacity. Solvay has developed and commercialized an alternative chemical approach to the scaling problem that has shown tangible benefits in terms of throughput and unit process cycle extension as well as improving the clean out efficiency. This paper discusses the commercial application and key benefits resulting from the application of PHOSFLOW® technology.


8:30 am - 11:30 am
Environmental Health/Safety - Chair: Brooke Fait, Geosyntec

Environmental Gains from Innovative Engineered Synthetic Turf Closure Revetment Systems
Chris Eichelberger, Agru America | 8:30 am

The innovative engineered synthetic turf closure & revetment systems, ClosureTurf® & HydroTurf®, have been used on well over 1,000 acres of environmental containment and revetment projects across the United States. The benefits from these alternative systems are predictable and well understood. Both systems address the known deficiencies of traditional design / construction methodologies while providing predictable and quantifiable benefits to industry, community and the environment. Significant environmental benefits are gained from these systems and include; a predictable significant increase in storm water quality, removing the need to develop an off-site borrow area, reduced or eliminated over the highway trucking of soils and on-site heavy equipment needs, reduced long-term maintenance requirements and reduced carbon foot print from construction activities.


Five Fundamentals for Successful Mine Closure
Marc Theisen and Melanie Fuhrman, Profile Products, LLC | 9:10 am

Successful reclamation or closure of massive soil and vegetation disturbances from mining requires a comprehensive and holistic approach. Those overseeing rehabilitation efforts must assimilate and stage several considerations into a working relationship that integrates five fundamentals for successful mine closure as follows: 1) Employ creative methodologies to develop suitable growing media from less than desirable soils or substrates. 2) Pick plant species capable of sustainable growth and effective erosion control. 3) Analyze site conditions to assess and select necessary erosion control measures. 4) Require and oversee proper installation practices. 5) Inspect and maintain all installations on a routine basis. Our paper will offer case histories from a variety of locations and climates where the “Five Fundamentals” have been successfully integrated in mined land reclamation projects.


Impairment in the Workplace
Susan Barge, Florida Mine Safety Training Program | 10:15 am

pending


Active Shooter in the Workplace for Civilians
Robert Ifft, Florida Mine Safety Traii | 10:55 am

Pending


8:30 am - 11:30 am
Mining - Chair: Mike O’Reilly, Mosaic

Field Data and CFD Analysis of New Suction Inlet Geometry in Phosphate Dredge System
John Furland, Mohamed Garman, Robert Visintainer and Thomas Wujcik, GIW Industries; Jason Berry, Mosaic | 8:30 am

Field data is analyzed in order to investigate the effects of switching from a “clown mouth” to a “bass mouth” suction inlet design on a phosphate dredge, as well as making some changes to the pumping system arrangement. Computational Fluid Dynamics (CFD) were used in 2015 to analyze multiple designs, and the results indicated that installation of the bass mouth inlet would result in superior solids uptake and increased system stability. The bass mouth was installed in 2016 and field data has been collected and analyzed in order to see the effects of changing to the new design. The field data analysis indicates that the bass mouth design results in higher solids concentrations and increased system stability, which in turn translates to higher delivered tonnages.


Containment and Dewatering of Mine Tailings with Geotextile Tubes at a Silver Mine in Mexico
Christopher Timpson, TenCate Geosynthetics | 9:10 am

A pipeline connecting the mine tailings impoundment to a secondary settling pond ruptured causing water and tailings material to be discharged outside of the tailings treatment system. Due to fast action taken by the mine site management, including the construction of secondary berms below the actual tailings storage facility, the estimated amount of tailings pulp discharged was limited and the majority of the spill was immediately cleaned up and restoration activities were commenced. All water samples taken come back without any indication of contamination. Monitoring continued on an on-going basis in coordination with local authorities and communities. PROFEPA (the Mexican Federal Agency for Environmental Protection) set out the necessary steps the Company must take to resume operations. These steps include completing a full remediation of the spill area and delivering an engineering report outlining steps for the continued use of the existing tailings storage system or such other alternative solution as is appropriate. The most technical and economical alternative solution selected by the owner’s engineering team to return the mine to full operations was geotextile tubes containment and dewatering technology for mine tailings management. This paper will detail the testing, design, installation, and operation of the geotextile tube dewatering and containment cell that was fully implemented in less than 60 day, restoring full employment, and contributing to the local economy.


In-Situ Soil / Bentonite Mixing. Can Soil Mixing be a Viable Tool in Mining Water-table Mitigation Efforts
Lawrence Goss, Mosaic Phosphates | 10:15 am

Drawdown mitigation efforts at large surface excavations are a challenging and costly part of mining near-surface mineral deposits. Impacts to groundwater levels must be mitigated for protection of environmental resources and adjacent property owners. Common methods include the excavation and operation of perimeter recharge facilities to induce a groundwater divide. The facilities are large and require a supply of low turbidity water, with most of the recharged water flowing towards the mine cut. This presentation explores the use of in-situ soil mixing to install a reduced permeability wall for groundwater control at the mine margins. Benefits include substantially smaller recharge footprint, improved mining conditions and gains in mitigation performance.


IPCC Systems for Phosphate Surface Mining: An Overview of Technology and a Conceptual Case Study
Erich Dohm, Jacobs Engineering | 10:55 am

In-pit crushing and conveying (IPCC) systems can offer significant technical and economic opportunities for phosphate surface mining operations. When compared to truck haulage and slurry pumping systems traditionally employed for phosphate mining, IPCC systems can reduce operating cost, lower carbon emissions, and eliminate water concerns. This paper presents an overview of IPCC system components and processes. In addition, the results of a recent IPCC opportunity analysis study are highlighted for ore transportation at an existing phosphate surface mine. The proposed IPCC system would replace slurry pumping as the traditional mode of ore transportation at the mine. Jacobs’ conceptual design for the IPCC system includes relocatable apron feeders that interface between multiple draglines and mobile in-pit conveyors, which in turn feed a single overland conveyor that runs from the mine to the beneficiation plant. The major advantages presented by this design include removal of water from the mining pit and elimination of double-handling ore, both of which are major concerns to the client. In total, the capital and operating cost of the IPCC system is estimated at USD $0.43/ton-mile. The results of the study also indicate that optimization of the mine plan and conveyor design capacities can provide substantial cost savings to the project.


8:30 am - 11:30 am
Analytical/Regulatory - Chair: Trish Walsh, Jacobs Engineering

Respirable Crystalline Silica in the Workplace: Evaluating the Health Protectiveness of the New OSHA Respirable Crystalline Silica Standard and Facing Potential Compliance Challenges
Ushang Desai, Geosyntec Consultants | 1:30 pm

On June 23, 2016, Occupational Safety and Health Administration (OSHA) introduced the new Respirable Crystalline Silica (RCS) Rule for General and Maritime Industry, and these industries have two years to comply with new Silica Rule. The new silica OSHA RCS rule establishes an action level of 25 µg/m3 and a permissible exposure limit (PELs) of 50 µg/m3 (averaged over an 8-hour work shift). The former OSHA PEL for respirable crystalline silica was a “sliding scale” function of the percent quartz found in each sample. Occupational exposure to crystalline silica causes health effects such as silicosis, COPD, lung cancer, and kidney illnesses. Geosyntec Consultants recently conducted an Industrial Hygiene (IH) assessment at multiple private manufacturing facilities in the United States to evaluate whether the new RCS standard is more protective of workers compared to the former OSHA ”sliding scale” silica PEL. We collected 12 personal air breathing zone and area samples at the facilities in accordance with the NIOSH Manual of Analytical Method (NMAM), method 7500. Based on the data we collected, the new silica PEL protective (i.e., silica levels at these facilities were above 50 µg/m3) and therefore, is expected to reduce occupational risk from exposure to RCS in the workplace. In addition, during our IH assessment, we found current engineering controls such as dust containment systems and local exhaust ventilation systems are not efficient and administrative measures such as housekeeping, mandatory respiratory protection program, designated regulated areas, and use of personal protective equipment was a major issue at the facilities. Finally, the new silica standards bring various compliance challenges including performing air sampling, evaluation of proper control strategies, medical surveillance, and use of respirators. The question arises will these new standards affect the mining industry? Mining Industries are regulated under Mine Safety and Health Administration (MSHA) silica standards, and are not considered “General Industry.” However, in their recent regulatory agenda (April 2016) MSHA stated, “MSHA intends to use OSHA’s work on the health effects and risk assessment, adapting it as necessary for the mining industry.” Certain operations in the Mining Industries regulated by OSHA and require to apply new RCS rule. Are you compliant with new silica regulations?


Protecting Yourself from Liability: Before, During After the Blast
Jeff Taylor, Sauls Seismic; Kelly Ratliff, Montgomery, Rennie Johnson | 2:10 pm

Blasting is legally considered a Strict Liability operation. This presentation provides recommendations based on past regulatory and litigation issues, and discusses Best Management Practices to use to establish daily protocols that improve Risk Management and Liability Protection in blasting operations. Provides a pro-active scheme for blasters, mine/site operators and owners to follow to prevent or be best prepared for frivolous blast damage law suits. Litigation trends, and new ideas and technologies are also discussed that are available to improve optimization in safety and liability of blasting operations.


Passive Water Treatment of Mining Influenced Water at Empire Mine State Historic Park in Grass Valley, California
Stephen Lofholm, Golder Associates; Daniel Millsap, State of California, Dept of Parks and Recreation; Neal Gallagher and Thomas Rutkowski, Golder Associates | 3:15 pm

Empire Mine was one of the richest hard rock gold mines which operated for 106 years in the Sierra foothills. The mine contains 367 miles flooded workings. A perennial flow of near neutral pH mining influenced water (MIW) containing iron, arsenic, manganese, and other trace metals discharges from a former dewatering portal. Since November 2011, a passive treatment system (PTS) has treated MIW flowing from the portal. The PTS consists of a settling pond, aerobic vegetated wetland, and a manganese removal bed. The PTS is designed to optimize dissolved oxygen infusion at each unit process. Influent flow to the PTS averages 190 gpm and peaks at over 1,200 gpm. Since February 2013, the PTS has removed metals to trace levels that are below effluent limits.



1:30 pm - 4:00 pm
Mineral Processing - Chair: Chelsea Kucharsky, Mosaic

Breakthroughs in Commercializing Two Energy Saving and Emission Reducing Separation Devices for Phosphate Processing
Wending Xiao and Dapeng Zhang, Hubei Bonan Tech; Patrick Zhang, FIPR Institute; David Yang, Mineral Technologies International | 1:30 pm

Recent technological breakthroughs have been achieved, paving the way for commercializing two innovative mineral separation devices, the packed column jig (PCJ) and packed flotation column (PFC). Major breakthroughs include eliminating the column plugging problem and developing a remote process control system. This paper presents some pilot testing results and recent commercial activities in utilizing these technologies. Pilot testing of PCJ on a high-dolomite mining tailings recovered 87% of the P2O5 value with the concentrate analyzing 28%P2O5 and less than 1% MgO. A packed flotation column (PFC) of 12 meters in height and 3 meters in diameter at a dolomite flotation plant was demonstrated to be capable of replacing 11 mechanical flotation cells of 24 cubic meter each, showing eight (8) folds saving in electricity use and over 90% reduction in water consumption. Three commercial plants are being constructed, where heavy media separation is replaced with PCJ and mechanical cells are replaced with PFC.


Development of Solutions for Beneficiation of Carbonaceous Phosphate Ores Updates
Guoxin Wang, James Gu and Ryan Xiong, ArrMaz | 2:10 pm

Phosphate reserves associated with carbonate minerals are greater than those with siliceous gangues worldwide. Tremendous efforts are made worldwide to separate those carbonates from phosphates with crushing, grinding and flotation processes. Therefore, flotation reagents, especially collectors, are critical for achieving satisfactory separation and recovery through flotation process. In recent years, ArrMaz has developed a series of carbonate flotation collectors for phosphate ores from various origins. This presentation will update the progress on this reagent development and processes for the separation of carbonate impurities from phosphate ores.


Novel Amines to Increase Sustainability of Reverse Phosphate Flotation
Pablo Dopico, Clariant Mining Solutions; Jamee-Lee Dye, The Mosaic Company; Brandi Makin, Clariant Mining Solutions | 3:15 pm

Beneficiation of phosphate ores by flotation is critical in the commercial production of phosphate fertilizers. In the Crago process practiced in many plants in North America, the phosphate is first floated using an anionic collector, and the concentrate, after deoiling, is then floated with an amine to lower its silica content. In order to facilitate the dosing of the amines, plants typically dilute them to low concentrations, often below 5%, using well water. An amine that does not require dilution would allow the beneficiation plant to decrease its usage of water from the aquifer, thus decreasing its environmental impact. This paper will describe the use of novel Clariant amines to remove silica from Florida phosphate ores, including some ores from Mosaic’s mines in central Florida.



1:30 pm - 4:00 pm
Public Relations - Chair: Tracy Mouncey, Tracy Mouncey and Associates

Your Company is Different: Unique Communication Strategies for Resource Companies
Ryan Houck, Consensus Communications | 1:30 pm

The communications challenges faced by resource companies are unique. Traditional public affairs strategies, often developed with well-known consumer brands in mind, are unsuitable to companies that navigate environmental permitting, face hostile NGOs, contend with local elected officials and extract raw materials. How do residents view resource companies? How do they make decisions on complex issues? How can we shape those decisions, limit controversy and explain our operations in "kitchen table" language? This presentation explains the science and strategy of effective communications for resource companies.


Breakthrough Strategies to Build Community Support in the Digital Age
Ryan Cohn, Sachs Media Group | 2:10 pm

Public support or community outcry can make or break your chances of success before governmental bodies, regulators, and other crucial decision makers. In this engaging session, Sachs Media Group Executive Vice President Ryan Cohn will discuss best practices for building a groundswell of public support for your priority project. Cohn will help attendees navigate the sometimes-confusing world of digital media and provide tips for reaching targeted audiences who are interested and engaged in your issue. These tools and tactics can help you succeed in the court of public opinion as you pursue your projects and long-term strategies.


The Extinction of Experience- Creating Site-Based Programs
Tracy Mouncey, Tracy Mouncey and Associates | 3:15 pm

The anecdote for the growing extinction of experience is in the water that we drink, in the air that we breath– it’s just outside our door—and just under our feet…. that GREAT story is there, it’s always been there; we just have to find it again, and share it with others! Environmental Based Learning connects your operation with the community. Potential to provide numerous opportunities to students, teachers and communities. Benefits continue far beyond student’s tenure in school studies establish site-based learning: Produces high performance lifelong learners, Effective future workers, Problem solvers, Community Leaders who care about the people, creatures and places around them. This presentation will provide strategies to develop, implement, and sustain site-based learning and community outreach at your operation.



1:30 pm - 4:00 pm


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         Englewood, CO 80012
  •   303.948.4200
  • cs@smenet.org

About The Florida Section

Established in 1949 the Florida Section of the Society for Mining Metallurgy, and Exploration, Inc. (SME) is a legally constituted unit of SME. The SME FL Section helps to enhance the professional development of their members and provide local service to the public.


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