Comprehensive Recovery& Sustainable Development of Phosphate Resources

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DEPA/TOPO Based Process: Oxidizing & Refining • The acid uranium solution is oxidized: − with hydrogen peroxide to form uranyl peroxide UO4·nH2O − with ammonia to form ammonium diuranate (ADU), (NH 4 ) 2 U 2 O 7 − with to ammonium carbonate (or ammonia+CO 2 ) to form ammonium uranyl tricarbonate (AUT), (NH 4 ) 4 U 2 O 7 (CO 3 ) 3 • Thicken, wash, dry, and calcine the above products to produce U 3 O 8 – yellow cake Florida Industrial and <strong>Phosphate</strong> Research Institute
Second Wave Uranium Recovery Plants Acid Producer Farmland Uranium Producer Wyoming Minerals Freeport Location Capacity P 2 O 5 (tons/year) Capacity U 3 O 8 (lbs/year) Pierce, FL 450,000 400,000 Process WMC, DEPA- TOPO Freeport Minerals Co. Uncle Sam, LA 675,000 690,000 FMC, DEPA- TOPO Agrico Freeport Donaldsonville, FMC, 360,000 420,000 Minerals Co. LA DEPA-TOPO IMC IMC New Wales, FL 1,000,000 800,000 IMC, DEPA- TOPO CF Industries IMC Bartow, FL 720,000 600,000 IMC, DEPA- TOPO CF Industries IMC Plant City, FL 680,000 600,000 IMC, DEPA- TOPO W. R. Grace Uranium Recovery Operating Period 1978 – 1981 1978 - 1999 1981 - 1998 1980 - 1992 1981 - 1985 1980 - 1992 Bartow, FL na 330,000 URC, OPAP 1976 – 1980 Gardinier Gardinier East Tampa, FL 500,000 420,000 Gardinier, OPPA 1979 – 1982 Western Coop. Fertilizer Earth Sciences Calgary, Alberta, Canada Chemie Rupel Umipray Purrs, Belgium 100,000 150,000 144,000 120,000 ESI, OPAP 1981 – 1987 IMC – Prayon, DEPA-TOPO 1980 - 1998
Page 1 and 2: Comprehensive Recovery& Sustainable
Page 3 and 4: Summary of World Phosphate Mining
Page 5 and 6: Improving Phosphate Recovery • Im
Page 7 and 8: Types of Phosphate Ores Based on Be
Page 9 and 10: Utilization of Low-grade Phosphate:
Page 11 and 12: Major Wastes Generated by the Phosp
Page 13 and 14: Basic Properties of Florida Phospha
Page 15 and 16: “Wet Process” Phosphoric Acid P
Page 17 and 18: Problems with Phosphogypsum Stacks
Page 19 and 20: Successful PG Uses in Agriculture
Page 21 and 22: Successful PG Uses in Agriculture
Page 23 and 24: PG Use in Construction in China •
Page 25 and 26: PG Use in Roads - Cost Comparison I
Page 27 and 28: Use of Phosphogypsum -Challenges
Page 29 and 30: Production of Ammonium Phosphates D
Page 31 and 32: “Wet Process” Phosphoric Acid P
Page 33 and 34: Average Uranium and Thorium Content
Page 35 and 36: Uranium in Phosphate: Basic Facts
Page 37 and 38: Form of Uranium in Phosphate Rock
Page 39 and 40: Recovery of Uranium from Phos. Acid
Page 41 and 42: Solvent Extraction Based Technologi
Page 43 and 44: DEPA/TOPO Based Process: Pretreatme
Page 45: DEPA/TOPO Based Process: Two-cycle
Page 49 and 50: U Recovery from Concentrated Phos.
Page 51 and 52: Advantages of the Nitrate Route •
Page 53 and 54: Recovery of Uranium from Phos. Acid
Page 55 and 56: Egyptian Pilot Testing Program on U
Page 57 and 58: Acid Pre-treatment Columns Carbon c
Page 59 and 60: First Cycle Stripping Three mixer-s
Page 61 and 62: The Tunisia Pilot Plant for U Recov
Page 67 and 68: Recent R&D Efforts: Pilot Testing o
Page 69 and 70: Summary of Urtek Pilot Testing •
Page 71 and 72: Urtek Pre-feasibility Study: Cost N
Page 73 and 74: Phosphates with High REE • A Cana
Page 75 and 76: Rare Earth Elements in the Phosphat
Page 77 and 78: Recovery of REE from Phosphoric Aci
Page 79 and 80: Recovery of REE from Phosphate: Com
Page 81 and 82: Other Recoverable Elements from Pho

Comprehensive Recovery& Sustainable Development of Phosphate Resources

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