| 发明名称 |
TREATMENT OF PSEUDOPLASTIC POLYSACCHARIDE SOLUTIONS |
| 摘要 |
Process for the concentration by ultrafiltration of a viscous, aqueous solution of a water-soluble polysaccharide, optionally in conjunction with a cell-lytic enzymatic treatment. The concentrate thus produced is convenient to transport and easily diluted to provide an aqueous polymer solution suitable for polymer flooding in enhanced oil recovery. |
| 申请公布号 |
DE3172841(D1) |
申请公布日期 |
1985.12.12 |
| 申请号 |
DE19813172841 |
申请日期 |
1981.09.14 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
VAN LOOKEREN CAMPAGNE, CONSTANT JOHAN;ROEST, JACOB BERNARD |
| 分类号 |
E21B43/22;B01D61/14;C08B37/00;C09K8/035;C09K8/90;C12P19/04;C12P19/06;(IPC1-7):C12P19/04;C09K7/00;B01D13/00 |
主分类号 |
E21B43/22 |
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