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Method of preparing a gold-containing solution and process arrangement for recovering gold and silver
US10060007B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10060007-B2 |
| Application number | US-201414787404-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 29, 2014 |
| Priority date | Apr 30, 2013 |
| Publication date | Aug 28, 2018 |
| Grant date | Aug 28, 2018 |
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Abstract
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The invention relates to a method for preparing a gold-containing solution by chloride leaching from gold-bearing raw materials. A further object of the invention is to provide a method for recovering gold and optionally silver from the prepared gold-containing solution. The invention relates also to a process arrangement for recovering gold and optionally silver.
First claim
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The invention claimed is: 1. A method of preparing a gold-containing solution from gold-bearing raw materials, wherein the method comprises (a) a gold leaching step, wherein the gold-bearing raw material is subjected to oxidative chloride leaching in an aqueous leaching liquor in the following conditions: (i) the aqueous leaching liquor contains dissolved cupric ions (Cu 2+ ), chloride (Cl − ) and bromide (Br − ), (ii) pH is within a range wherein the cupric ion does not preci…
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Frequently asked questions
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- What does patent US10060007B2 cover?
- The invention relates to a method for preparing a gold-containing solution by chloride leaching from gold-bearing raw materials. A further object of the invention is to provide a method for recovering gold and optionally silver from the prepared gold-containing solution. The invention relates also to a process arrangement for recovering gold and optionally silver.
- Who is the assignee on this patent?
- Outotec Finland Oy
- What technology area does this patent fall under?
- Primary CPC classification C22B11/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 28 2018 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).