发明名称 |
Tailings stream treatment processes |
摘要 |
A process for treating a tailings stream comprises (a) contacting (1) a gelling agent and (2) an activator with said tailings stream to produce a gel; (b)entrapping solids including sand and clay, and other solid particles with the gel; and (c) allowing the gel to strengthen and solidify to produce a trafficable deposit; wherein the tailings stream comprises water and solids, which solids comprise sand, clay and other solids particles, and wherein 5% by volume to 100% by volume of the solids have a particle size less than 0.05 mm, based on the total volume of the solids. The process may further comprises spreading the gel produced in step (a) or the trafficable deposit produced in step (c) over a surface. The present invention is particularly useful to treat tailings streams produced in processes to extract bitumen from oil sands ores. |
申请公布号 |
AU2011349205(B2) |
申请公布日期 |
2016.03.10 |
申请号 |
AU20110349205 |
申请日期 |
2011.12.21 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
MOFFETT, ROBERT HARVEY;ANDRIN, PETER |
分类号 |
C04B26/00;C04B26/02;C04B26/06;C04B26/10;C04B26/14;C04B26/16;C04B26/18;C04B26/20;C04B26/24;C04B26/30;C04B28/24 |
主分类号 |
C04B26/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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