发明名称 |
Process for the preparation of a high purity cobalt intermediate |
摘要 |
A process for the preparation and purification of a cobalt intermediate from a cobalt sulphate solution containing cationic and anionic impurities, including the successive steps of: (i) reacting the cobalt sulphate solution with an organic reagent to extract unwanted cationic impurities from the sulphate solution; (ii) extracting the cobalt from the sulphate solution with an organic reagent, to create a cobalt loaded organic phase substantially free of all anionic impurities; (iii) stripping the cobalt loaded organic phase with a high strength ammoniacal ammonium carbonate solution, to create an ammoniacal ammonium carbonate strip liquor rich in cobalt II ammines; (iv) converting the cobalt II ammines to cobalt III tetrammines; (v) extracting the majority of nickel from the cobalt rich ammoniacal liquor with a suitable organic reagent; and (vi) recovering the cobalt from the cobalt rich ammoniacal liquor. |
申请公布号 |
ZA9408497(B) |
申请公布日期 |
1995.06.20 |
申请号 |
ZA19940008497 |
申请日期 |
1994.10.28 |
申请人 |
QUEENSLAND NICKEL PTY. LTD. |
发明人 |
JOHN ERNEST FITTOCK;MALCOLM JOHN PRICE;JOHN GRAHAM REID;DAVID THOMAS WHITE;MICHAEL RAYMOND DAVIS |
分类号 |
C01G51/00;C01G51/04;C22B3/20;C22B3/26;C22B23/00 |
主分类号 |
C01G51/00 |
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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