| 摘要 |
TITLE: PROCESS FOR THE SIMULTANEOUS EXTRACTION OF ALL METAL VALUES OTHER THAN COPPER FROM MANGANESE NODULES This invention provides a two-stage leaching procedure for manganese nodules for obtaining directly from a second leaching stage a substantially pure stream of copper free of other metal values, the other metal values, including manganese, nickel and cobalt, having been previously extracted in an earlier leaching stage. Both leaching operations are carried out utilizing an ammoniacal aqueous solution on a reduced manganese nodule. |
