发明名称 |
Purification of Bayer process liquors using cationic polymeric quaternary ammonium salts |
摘要 |
Bayer process liquors derived from the digestion of bauxites with a caustic solution are purified by removing the organic impurities present in the liquors. Removal of these impurities is accomplished by treating the liquor containing dispersed solids with a high viscosity polymer which includes diallyl dimethyl ammonium monomers.
|
申请公布号 |
US5284634(A) |
申请公布日期 |
1994.02.08 |
申请号 |
US19930004354 |
申请日期 |
1993.01.14 |
申请人 |
NALCO CHEMICAL COMPANY |
发明人 |
STROMINGER, MICHAEL G.;MALITO, JOHN T. |
分类号 |
B01D21/01;C01F7/06;C01F7/47;(IPC1-7):B01D21/01 |
主分类号 |
B01D21/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|