发明名称 |
Verfahren zur Reinigung von quasi-wasserfreien organischen Flüssigkeiten |
摘要 |
Purification of a virtually anhydrous organic liquid to decrease its content of alkali metal, alkaline earth metal and other metal cations comprises contacting the liquid with one or more cation exchange resins in acidic or ammonium form. At least one of the resins is a sulphonic resin containing SO3H or SO3NH4 groups and based upon a polystyrene-divinylbenzene copolymer having 50-60 wt.% divinylbenzene content (without taking the sulphonic groups into account). The liquid may not be dimethylsulphoxide (DMSO) alone. |
申请公布号 |
DE69801391(D1) |
申请公布日期 |
2001.09.27 |
申请号 |
DE1998601391 |
申请日期 |
1998.05.11 |
申请人 |
ATOFINA, PUTEAUX |
发明人 |
COMMARIEU, ANNIE;HUMBLOT, FRANCIS |
分类号 |
B01J39/04;C07B63/00;C07B63/02 |
主分类号 |
B01J39/04 |
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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