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KEMWorks offers technology in all areas of phosphate fertilizer production, including, rock grinding, phosphoric acid, concentration, fluorine recovery, fluoride products, and granulation.
Process Technologies Flow Diagram
Phosphoric Acid
Prayon has been selling its know-how, which includes equipment as well as process technology, since 1950’s and now between 50% and 60% of the world’s phosphoric acid is produced in plants using Prayon Technology.
- Prayon Dihydrate - The world-standard for dihydrate phosphoric acid is adaptable to a wide-range of phosphate rocks. More than 125 plants have been constructed using this process, in capacities up to 2000 t/d P2O5. The Mark 4 design features a low-level flash cooler to produce a readily filterable gypsum with low-scaling tendencies.
- Central-Prayon Process- Although Prayon's licensing activities been principally based on the Dihydrate process, their own production in Engis Belgium is based on the two-stage Dihydrate Hemihydrate CENTRAL-PRAYON process. This high efficiency process, ± 98.5% cake efficiency, also produces a relatively strong acid, ± 36% P2O5. The process produces a "self-drying" gypsum that can be suitable for plaster boards.
- Prayon Hemihydrate - For the simplicity of a single-stage high-strength process. The process produces a stonger acid ± 40% P2O5, with a slight penalty on recovery. The process is suitable where the rock cost is low, but energy cost is high. The process
Fluorine Recovery
Fluorine may be recovered from the evaporators to produce fluorosilicic acid (FSA) at up to 25% H2SiF6. The Prayon process is used, which enables FSA to be recovered at very high recovery and with as low as 100 ppm P2O5 contamination.
Phosphoric Acid Purification
J. R. Simplot Company has successfully developed a membrane-based system for the purification of wet process phosphoric acid. A first-of-a-kind, 30,000 t/y solution purification plant using this technology has been running since 1996 to producing high quality, fertigation (drip) grade phosphoric acid.
Uranium Recovery - from phosphoric acid
Fertilizers
KEMWorks offers process technology for a range of fertilizer products including:
With increasing fuel and raw material prices, the economics of producing granulation products has been adversely affected. We can also offer a number of proven methods to modify granulation plants to reduce energy costs.
Sulfuric Acid
Our associates provide consulting services for sulfuric acid, ammonia scrubbing, sulfur handling and cogeneration.
Environmental
- Waste Minimization
- Environmental Controls - fume scrubbers
- Plant Closure and Remediation
Fertilizer Data Fertilizer Meetings
Agrifos, Acquisition of Mobil Pasadena Plant, Due Diligence and Audits, Fertilizer Projects, Pasadena,Texas, USA
Agrium, Phosphate Complex Feasibility Study, Feasibility Studies, Fertilizer Projects, Bayovar, Peru
Agrium, Phosphate Complex Expansion, Engineering Services, Fertilizer Projects, Conda, Idaho, USA
Agrium, Mine, Beneficiation, Singmaster Breyer phosacid, Due Diligence and Audits, Fertilizer Projects, Conda, Idaho, USA
Agrium, Kapuskasing Feasibility Study, Feasibility Studies, Fertilizer Projects, Alberta, CA
Agrium, Prayon phosacid, Due Diligence and Audits, Fertilizer Projects, Redwater, Canada
Agrium, Granulation Plant Revamp, Engineering Services, Fertilizer Projects, Conda, Idaho, USA
Amalyk PO, Modernization of Fertilizer Plant, Feasibility Studies, Fertilizer Projects, Uzbekistan
Behre Dolbear, Acquisition of Oxy White Springs, Due Diligence and Audits, Fertilizer Projects, Denver, CO, USA
Big Bend Transfer Co, Solid Sulfur Terminal, Engineering Services, Fertilizer Projects, Florida, USA
Cargill, Phosphate Mill Modernization, Engineering Services, Fertilizer Projects, Riverview, Florida USA
Cargill, South Train Cooler Installation, Engineering Services, Fertilizer Projects, Green Bay, Florida USA
Cargill, Prayon phosacid, Due Diligence and Audits, Fertilizer Projects, Florida, USA
Cytec Industries, Site Remediation & Closure, Engineering Services, Fertilizer Projects, Brewster, Florida USA
Fosfertil, Phophate Complex Audit, Due Diligence and Audits, Fertilizer Projects, Brazil
Industries Chimiques Senegal (ICS), Senegal Phosphate Industry Optimization, Feasibility Studies, Fertilizer Projects, Senegal
J.R.Simplot, Phosacid Plant Revamp, Engineering Services, Fertilizer Projects, Pocatello, Idaho USA
LIFOSA, Waste Minimization, Due Diligence and Audits, Fertilizer Projects, Kedainiai, Lithuania
MCK Mining Inc., Martison Lake Phosphate Complex, Feasibility Studies, Fertilizer Projects, Ontario, Canada
PCS Phosphates, Prayon phosacid, Due Diligence and Audits, Fertilizer Projects, Florida, USA
Rhodia, Sulfuric Acid, Prayon Phosacid, Due Diligence and Audits, Fertilizer Projects, Coatzacoalcos, Mexico
Rhodia, Phosphoric Acid Plant Upgrade, Engineering Services, Fertilizer Projects, Coatzacoalcos, Mexico
Rhodia and Copebras, Environmental Assessment of Joint Venture, Due Diligence and Audits, Fertilizer Projects, Copebras, Brazil
Texuna Group, Mine & Fertilizer Plants - Technical Audit, Due Diligence and Audits, Fertilizer Projects, Uzbekistan
Ultrafertil, SA, Dorr Phosacid - Technical Audit, Due Diligence and Audits, Fertilizer Projects, Cubatão, Brazil
Ultrafertil, SA, Phosphoric Acid Plant Modernization, Engineering Services, Fertilizer Projects, Cubatão, Brazil
WEC/USAID, Waste Minimization, Feasibility Studies, Fertilizer Projects, Lithuania
WEC/USAID, Phosphogypsum Study Tour, Feasibility Studies, Fertilizer Projects, Lithuania
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