摘要 |
<p>The invention provides a process for the leaching of a laterite ore, concentrate, tailings or waste rock for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step with a lixiviant comprising hydrochloric acid to leach nickel from the laterite ore, followed by a liquid/solids separation step. The liquid obtained is subject to solvent extraction with a dialkyl ketone, to obtain a solution rich in iron and a raffinate. Separation of iron from cobalt and nickel is obtained.</p> |
申请人 |
PROCESS RESEARCH ORTECH INC.;LAKSHMANAN, VAIKUNTAM I.;SRIDHAR, RAMAMRITHAM;CHEN, JONATHAN;HALIM, M.A.;DELAAT, ROBERT |
发明人 |
LAKSHMANAN, VAIKUNTAM I.;SRIDHAR, RAMAMRITHAM;CHEN, JONATHAN;HALIM, M.A.;DELAAT, ROBERT |