System and method for parallel solution extraction of one or more metal values from metal-bearing materials
US-2015361527-A1 · Dec 17, 2015 · US
Method for improving gold recovery
US8999034B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8999034-B2 |
| Application number | US-201313865979-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 18, 2013 |
| Priority date | Apr 18, 2012 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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Disclosed are methods and compositions for improving metal extraction processes by introducing at least one cationically charged compound selected from a group consisting of amines, particularly quaternary amines such as alkyldimethylbenzylammonium chlorides (ADBAC compounds), polyamines and other suitable cationic organic materials, and mixtures thereof, for neutralizing and/or coagulating excess anionic organic compounds including, for example, flotation reagents, surfactants, polymers, flotation reagent by-products and/or anti-scalant additives found in metal concentrate streams, and thereby reduce the downstream fouling of the activated carbon by these compounds.
First claim
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We claim: 1. A method for recovering a metal in a leaching process comprising: obtaining a metal concentrate stream, the metal concentrate stream containing a concentration of a free anionic organic compound; combining a quantity of a cationic amine compound with the metal concentrate stream to form an adjusted metal concentrate stream, the quantity of the cationic amine compound being sufficient to neutralize at least a majority of the free anionic organic compound; mixing th…
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- What does patent US8999034B2 cover?
- Disclosed are methods and compositions for improving metal extraction processes by introducing at least one cationically charged compound selected from a group consisting of amines, particularly quaternary amines such as alkyldimethylbenzylammonium chlorides (ADBAC compounds), polyamines and other suitable cationic organic materials, and mixtures thereof, for neutralizing and/or coagulating exc…
- Who is the assignee on this patent?
- Chemtreat Inc
- What technology area does this patent fall under?
- Primary CPC classification C22B11/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 07 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).