Method of recovering cobalt and nickel
US-2023307735-A1 · Sep 28, 2023 · US
Solvent extraction process for separating cobalt from nickel in aqueous solution
US8979976B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979976-B2 |
| Application number | US-78403710-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 20, 2010 |
| Priority date | May 20, 2010 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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A process for separating Co from Ni in an aqueous solution comprises subjecting the solution to extraction and using kinetic differences between Ni and Co in the extraction for achieving at least a partial separation of Co from Ni. This is effected by controlling the duration of the extraction so that a major portion of Co and a minor portion of Ni is extracted from the solution to produce a loaded extractant, enriched in Co and depleted in Ni compared to the feed solution, and a Co-depleted raffinate containing Ni. In a further embodiment, the invention utilizes kinetic differences between Ni and Co during striping for effecting separation of Ni and Co. The loaded extractant can be subjected to a bulk stripping or a selective stripping operation to obtain Co and Ni solutions from which Ni and Co can be recovered. The process may be incorporated in a hydrometallurgical process for the extraction of Ni and/or Co from an ore or concentrate containing Ni and Co.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for separating and recovering Co from Ni in an aqueous feed solution, comprising: subjecting the feed solution containing Ni and Co and impurities comprising Mg and Mn to extraction with an extractant and using kinetic differences between Ni and Co in the extraction by controlling duration of the extraction, thereby separating the Co from the Ni, and from the Mg and the Mn, whereby a major portion of Co and a minor portion of Ni is extracted…
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Chemistry & Metallurgy · mapped topic
- C22B23/0484Primary
Chemistry & Metallurgy · mapped topic
- C22B3/42Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8979976B2 cover?
- A process for separating Co from Ni in an aqueous solution comprises subjecting the solution to extraction and using kinetic differences between Ni and Co in the extraction for achieving at least a partial separation of Co from Ni. This is effected by controlling the duration of the extraction so that a major portion of Co and a minor portion of Ni is extracted from the solution to produce a lo…
- Who is the assignee on this patent?
- Jones David Llewellyn, Mccoy Tannice Marie, Mayhew Keith Edward, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification C22B23/0484. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).