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Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents
Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents
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机译:使用离子交换树脂的混合工艺可从浸出废水中选择性回收镍和钴
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摘要
The present invention is directed to a hybrid process using ion exchange resins in the selective recovery of nickel and cobalt of leaching effluents that is comprised of the steps of processing (1) the laterite ore (M), which is then treated through leaching (2) (either atmospheric or under pressure), considering solutions from the solid-liquid separation step of existing plants already in operation (2) as well, in a way that the downstream process comprises an ion exchange hybrid circuit, wherein the first ion exchange step (3) with resins (Re) exhibits specific selectivity conditions for the removal of iron, aluminum and copper and an increased pH, and the second ion exchange step (4) allows the removal of nickel and cobalt.
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