发明名称 |
PROCESS FOR THE PREPARATION OF A HIGH PURITY COBALT INTERMEDIATE |
摘要 |
<p>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.</p> |
申请公布号 |
CA2134490(C) |
申请公布日期 |
2000.05.23 |
申请号 |
CA19942134490 |
申请日期 |
1994.10.27 |
申请人 |
|
发明人 |
FITTOCK, JOHN E.;PRICE, MALCOLM J.;REID, JOHN G.;WHITE, DAVID T.;DAVIS, MICHAEL R. |
分类号 |
C01G51/00;C01G51/04;C22B3/20;C22B3/26;C22B23/00;(IPC1-7):C22B3/42 |
主分类号 |
C01G51/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|