发明名称 |
Method for dewatering a slurry using a twin belt press with cationic amine salts |
摘要 |
A method for dewatering a slurry of solid particles suspended in a liquid using a twin belt press dewatering system, comprising the following steps: feeding the slurry of solid particles into the dewatering system; feeding a cationic amine salt solution into the dewatering system at a point just prior to the mixing drum, the cationic amine salt being a latex copolymer of acrylamide and dimethylaminoethylmethacrylate sulfuric acid salt having a mole ratio in the range between about 30:70 to 70:30, preferably 53:47; mixing the cationic amine salt solution with the slurry of solid particles in the mixing drum; and feeding the cationic amine salt solution/slurry mixture to the twin belt press, whereby the slurry of solid particles is dewatered. The cationic amine salt solution having a strength of less than 1% and a polymer concentration of about 35%.
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申请公布号 |
US4792406(A) |
申请公布日期 |
1988.12.20 |
申请号 |
US19880197494 |
申请日期 |
1988.05.23 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
ALLENSON, STEPHAN J.;BRADEN, MICHAEL L.;BANIK, JACK A. |
分类号 |
B01D33/04;B01D33/64;B01D37/03;C02F1/54;C02F11/12;(IPC1-7):C02F11/14;B01D37/06 |
主分类号 |
B01D33/04 |
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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