发明名称 |
Hydrophobic polyelectrolyte coagulants for concentrating coal tailings |
摘要 |
A method for concentrating coal tailings which comprises steps of: feeding the coal tailings to a thickener; treating the coal tailings with a hydrophobic polyelectrolyte copolymer coagulant which comprises diallyldimethylammonium chloride and a more hydrophobic monomer, the coagulant is added to the coal tailings in an amount between about 0.05 to about 0.25 lb/ton; treating the coal tailings with a flocculant in an amount between about 0.05 to about 0.25 lb/ton; discharging substantially concentrated tailing; and withdrawing substantially clarified liquid from the thickener.
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申请公布号 |
US5330546(A) |
申请公布日期 |
1994.07.19 |
申请号 |
US19920931828 |
申请日期 |
1992.08.18 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
RAMESH, MANIAN;VENKATADRI, RAM A.;CONNELLY, LAWERENCE J.;CRAMM, JEFFREY R. |
分类号 |
B03B1/04;B03D3/02;C02F1/54;C10L5/06;(IPC1-7):C10L9/10;C02F1/56 |
主分类号 |
B03B1/04 |
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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