发明名称 |
Recovery of rhodium |
摘要 |
Rhodium is recovered from an aqueous precious metal solution by first contacting the solution with stannous chloride at a Sn:Rh molar ratio of at least 2:1 to produce activated Rh solution; solvent extracting rhodium from the activated solution with an organic extractant to produce an organic phase containing Rh; the Rh can be recovered from the organic phases by burning-off the organic, precipitating Rh by reduction or stripping with a stripping agent and recovering Rh from an Rh-loaded stripping agent; the method produces high yields of Rh in short periods as compared with time consuming prior procedures.
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申请公布号 |
US5201942(A) |
申请公布日期 |
1993.04.13 |
申请号 |
US19910793638 |
申请日期 |
1991.11.18 |
申请人 |
MCGILL UNIVERSITY |
发明人 |
DEMOPOULOS, GEORGE P.;BENGUEREL, ELYSE;HARRIS, GARFIELD B. |
分类号 |
C22B3/04;C22B3/26;C22B3/36 |
主分类号 |
C22B3/04 |
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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