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US-12060305-B2 · Aug 13, 2024 · US
Treatment of tailings streams
US9011972B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9011972-B2 |
| Application number | US-60807109-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 29, 2009 |
| Priority date | Oct 29, 2008 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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A process for the treating a mature fine tailings stream is provided. Treatment comprises contacting an alkali metal silicate or polysilicate microgel and an activator with mature fine tailings, entrapping the sand and clay fines within a polysilicate microgel, spreading the silica microgel over a surface, and allowing the silica microgel to dry, and producing a trafficable surface.
First claim
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What is claimed is: 1. A process for treating a tailings stream, comprising (a) contacting a silicate source and an activator with said tailings stream, (b) entrapping fine clay and sand within a silica gel, wherein said silica gel is formed from said silicate source and said activator, (c) spreading the silica gel over a surface, and (d) allowing the silica gel to dry to produce a trafficable surface, wherein the silicate source is an alkali metal silicate, polysilicate microgel,…
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Frequently asked questions
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- What does patent US9011972B2 cover?
- A process for the treating a mature fine tailings stream is provided. Treatment comprises contacting an alkali metal silicate or polysilicate microgel and an activator with mature fine tailings, entrapping the sand and clay fines within a polysilicate microgel, spreading the silica microgel over a surface, and allowing the silica microgel to dry, and producing a trafficable surface.
- Who is the assignee on this patent?
- Moffett Robert Harvey, Du Pont
- What technology area does this patent fall under?
- Primary CPC classification C04B28/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 21 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).