发明名称 |
PROCESS FOR THE HYDROMETALLURGICAL TREATMENT OF A LATERITIC NICKEL/COBALT ORE AND PROCESS FOR PRODUCING NICKEL AND/OR COBALT INTERMEDIATE CONCENTRATES OR COMMERCIAL PRODUCTS USING IT |
摘要 |
<p>Process for the treatment of a lateritic nickel/cobalt ore consisting of a mixture (2) of limonite and saprolite, characterized in that: the mixture (2) in the presence of an iron-precipitating agent is made into a pulp (1), having a solids content of between 10 and 40% by weight; the pulp undergoes a leaching operation (4) with sulphuric acid (5), at a temperature between 70° C. and the boiling point and at atmospheric pressure; and a solid-liquid separation (8) is carried out so as to obtain an iron-containing solid residue (9) and a solution containing nickel and cobalt ions. Process for producing nickel and/or cobalt intermediate concentrates or commercial products using the above process.</p> |
申请公布号 |
EP2059618(B1) |
申请公布日期 |
2015.07.22 |
申请号 |
EP20070823437 |
申请日期 |
2007.08.22 |
申请人 |
ERAMET |
发明人 |
AGIN, JÉRÔME;LE QUESNE, YVES;BERTHOMIEU, BERTRAND |
分类号 |
C22B23/00 |
主分类号 |
C22B23/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|