发明名称 |
A PROCESS FOR THE RECOVERY OF VALUE METALS FROM MATERIAL CONTAINING BASE METAL OXIDES |
摘要 |
<p>A process for leaching a value metal from oxidic materials, such as a lateritic nickel ore, comprising the step of leaching the ore with a lixiviant comprising a cationic salt (e.g., magnesium chloride) and hydrochloric acid is disclosed. An oxidant or additional metal chloride (such as that which results from the leaching operation) may be added. In one embodiment, the process comprises recovery of a value metal from ore comprising the steps of: leaching the ore with a lixiviant; separating a value metal-rich leachate from the ore in a first solid-liquid separation; oxidizing and neutralizing the value metal-rich leachate so obtained; and separating a solution of magnesium chloride from the leachate so obtained in a second solid-liquid separation. In another embodiment, the lixiviant solution is regenerated from the solution of magnesium chloride. In a further embodiment, regeneration of the lixiviant solution includes a step of producing magnesium oxide from the solution of magnesium chloride.</p> |
申请公布号 |
WO2004101833(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
WO2004CA00722 |
申请日期 |
2004.05.14 |
申请人 |
JAGUAR NICKEL INC.;HARRIS, G. BRYN;LAKSHMANAN, VAIKUNTAM, I.;SRIDHAR, RAMAMRITHAM |
发明人 |
HARRIS, G. BRYN;LAKSHMANAN, VAIKUNTAM, I.;SRIDHAR, RAMAMRITHAM |
分类号 |
C22B3/00;C22B23/00;(IPC1-7):C22B3/00 |
主分类号 |
C22B3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|