发明名称 |
Winning metal from ore |
摘要 |
Copper is won from chalcopyrite ore (copper/iron sulphide) containing Cu(II) and Fe(III), which respectively prefer square planar and octahedral co-ordination. A vaporized tetradentate (square-planar) Schiff base reagent is passed through a fluidized bed of oxidatively roasted chalcopyrite, and ignores the iron but forms a (volatile) copper complex. This is blown to a decomposition chamber containing a hot probe on which the complex decomposes, leaving the desired copper on the probe and liberating the Schiff base reagent for recycling.
|
申请公布号 |
US4518420(A) |
申请公布日期 |
1985.05.21 |
申请号 |
US19840572148 |
申请日期 |
1984.01.19 |
申请人 |
NATIONAL RESEARCH DEVELOPMENT CORPORATION |
发明人 |
COX, MICHAEL;GRAY, MICHAEL J.;DUKE, PHILLIP W. |
分类号 |
C22B23/02;C01G3/00;C07F1/00;C22B3/00;C22B3/26;C22B3/30;(IPC1-7):C22B1/10 |
主分类号 |
C22B23/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|