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Method of beneficiating high carbonate phosphate ore |
| T104304 |
Method of beneficiating high carbonate phosphate ore
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| Inventor: |
Hsieh, et al. |
| Date Issued: |
June 5, 1984 |
| Application: |
06/525,073 |
| Filed: |
August 22, 1983 |
| Inventors: |
Hsieh; Shuang-shii (Florence, AL)
Lehr; James R. (Florence, AL)
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| U.S. Class: |
209/166; 252/61 |
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| Abstract: |
A phosphate ore flotation process subjecting a phosphate ore containing carbonate mineral impurities to froth flotation in the presence of modifying agents, said modifying agents being alkyl phosphonic acids and hydrofluoric acid, and a collector, said collector being fatty acids; collecting the phosphate and carbonate minerals as rougher concentrate from the overflow; subjecting the phosphate and carbonate mineral concentrate to a differential desorption with an acid to remove the fatty acid from the surface of the phosphate mineral; removing the separated carbonate minerals from the overflow; and recovering the phosphate values in the underflow. |
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