| 发明名称 |
METHOD FOR PURIFYING DIMETHYL SULPHOXIDE (DMSO) |
| 摘要 |
A method for purifying dimethyl sulphoxide (DMSO), wherein the liquid DMSO with a low water content is contacted with an ion exchange resin in the form of -SO3H, and the liquid is separated from the resin. The resulting DMSO has an iron cation tracer element content of at most 1 ppb and an Na cation tracer element content of at most 2 ppb.
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| 申请公布号 |
WO9719057(A1) |
申请公布日期 |
1997.05.29 |
| 申请号 |
WO1996FR01806 |
申请日期 |
1996.11.15 |
| 申请人 |
ELF AQUITAINE PRODUCTION;COMMARIEU, ANNIE;BAZIN, ISABELLE |
发明人 |
COMMARIEU, ANNIE;BAZIN, ISABELLE |
| 分类号 |
C07C315/06;C07C317/04;(IPC1-7):C07C315/06 |
主分类号 |
C07C315/06 |
| 代理机构 |
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代理人 |
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| 地址 |
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