发明名称 |
The recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides |
摘要 |
The invention provides methods and compositions for improving the production of alumina hydrate. The invention involves adding one or more polysaccharides to liquor or slurry in the fluid circuit of the production process. The one or more polysaccharides can be a cross-linked polysaccharide (such as cross-linked dextran or cross-linked dihydroxypropyl cellulose). The various polysaccharides can impart a number of advantages including at least some of: greater flocculation effectiveness, increasing the maximum effective dosage, faster settling rate. The production process can be a Bayer process. |
申请公布号 |
AU2011289700(B2) |
申请公布日期 |
2016.05.12 |
申请号 |
AU20110289700 |
申请日期 |
2011.08.04 |
申请人 |
NALCO COMPANY |
发明人 |
WANG, JING;BODE, HEINRICH E.;LI, XIAOJIN HARRY |
分类号 |
B01D21/01;C01F7/06;C01F7/47 |
主分类号 |
B01D21/01 |
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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