Extraction of copper and other elements from waste materials for the production of metalic copper
US-2026043113-A1 · Feb 12, 2026 · US
Systems and methods for improved metal recovery using ammonia leaching
US9175366B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9175366-B2 |
| Application number | US-201313804053-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 14, 2013 |
| Priority date | Mar 14, 2013 |
| Publication date | Nov 3, 2015 |
| Grant date | Nov 3, 2015 |
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Abstract
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Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and a leach medium comprising ammonia and ammonium carbonate, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising: leaching a slurry comprising a metal bearing material comprising one of copper and cobalt and copper and cobalt compounds, and a leach medium comprising ammonia and ammonium carbonate; adding copper powder to the slurry; separating the slurry into a pregnant leach solution and solids, the pregnant leach solution comprising copper and cobalt; and performing a solvent extraction on the pregnant leach solution to produce a coppe…
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- C22B15/0078Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9175366B2 cover?
- Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and a leach medium comprising ammonia and ammonium carbonate, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to …
- Who is the assignee on this patent?
- Freeport Mcmoran Corp, Freeport Minerals Corp
- What technology area does this patent fall under?
- Primary CPC classification C22B15/0078. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 03 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).