发明名称 |
METHODS TO IMPROVE FILTRATION FOR THE BAYER PROCESS |
摘要 |
<p>The invention provides methods and compositions for improving the production of alumina trihydrate. The invention involves adding one or more cross-linked polysaccharides to a filter used to separate solids from liquid in the Bayer process. The one or more polysaccharides can be a cross-linked polysaccharide (such as cross-linked dextran or cross-linked dihydroxypropyl cellulose). The cross-linked polysaccharides can impart a number of advantages including greater flow rate and lower residual moisture in the resulting cake.</p> |
申请公布号 |
CA2885192(A1) |
申请公布日期 |
2014.05.08 |
申请号 |
CA20132885192 |
申请日期 |
2013.10.18 |
申请人 |
NALCO COMPANY |
发明人 |
CHESTER, RYAN;WANG, JING;KILDEA, JOHN D. |
分类号 |
B01D37/04;B01D37/00;B01D37/03;C01F7/02;C01F7/04 |
主分类号 |
B01D37/04 |
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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