发明名称 |
PROCESSES FOR RECOVERING METALS FROM AQUEOUS SOLUTIONS |
摘要 |
Provided herein are processes for recovering molybdenum and/or other value metals (e.g., uranium) present in aqueous solutions from a large range of concentrations: from ppm to grams per liter via a solvent extraction process by extracting the molybdenum and/or other value metal from the aqueous solution by contacting it with an organic phase solution containing a phosphinic acid, stripping the molybdenum and/or other value metal from the organic phase solution by contacting it with an aqueous phase strip solution containing an inorganic compound and having a ≦̸1.0 M concentration of free ammonia, and recovering the molybdenum and/or other value metal by separating it from the aqueous phase strip solution. When the molybdenum and/or other value metal are present only in low concentration, the processes can include an organic phase recycle step and/or an aqueous phase strip recycle step in order to concentrate the metal prior to recover. |
申请公布号 |
EP2451985(A2) |
申请公布日期 |
2012.05.16 |
申请号 |
EP20100730339 |
申请日期 |
2010.07.06 |
申请人 |
CYTEC TECHNOLOGY CORPORATION |
发明人 |
BEDNARSKI, TROY;COCALIA, VIOLINA;SODERSTROM, MATTHEW;KAMENETZKY, EDUARDO;CAMERON, ANDREW;HARRIS, DOUG |
分类号 |
C22B3/00 |
主分类号 |
C22B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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