发明名称 |
Coagulant for minute mineral particles in suspension and method for coagulating thereof |
摘要 |
Disclosed herein are a coagulant for minute mineral particles in suspension, comprising a copolymer of 0.5 to 10 mol % of 2-acrylamido-2-methylpropanesulfonic acid or a salt thereof, 40 to 99.5 mol % of N-hydroxymethylacrylamide and 0 to 59.5 mol % of acrylamide and showing a reduced viscosity of 10 to 30 dl/g in an aqueous 1N solution of sodium chloride at a temperature of 25 DEG C. and a concentration of the copolymer of 0.1 g/dl therein, and a method for coagulating the minute mineral particles in a suspension, comprising adding the coagulant a neutral waste water.
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申请公布号 |
US4783270(A) |
申请公布日期 |
1988.11.08 |
申请号 |
US19870115160 |
申请日期 |
1987.10.30 |
申请人 |
MITSUBISHI CHEMICAL INDUSTRIES LIMITED |
发明人 |
MURAO, YOSHIKAZU;SAWAYAMA, SHIGERU;MORI, KENJI |
分类号 |
B01D21/01;C02F1/54;C02F1/56;C08F20/00;C08F20/52;C08F220/58;(IPC1-7):C09K3/00 |
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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