发明名称 |
Process for the preparation of 2-Methyl-2-propene-1-sulfonic acid, sodium salt |
摘要 |
The present invention provides a process for the preparation of highly pure 2-Methyl-2-propene-1-sulfonic acid, sodium salt in high yield, with very low iron content, by the reaction of distilled sulfur trioxide complexed with a Lewis base in a halogentated solvent, the unreacted sulfur trioxide vapors being removed from the reactor before the mixture is treated with liquefied isobutylene, and neutralization by a base with an iron content within the range of 0 to 20 ppm.
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申请公布号 |
US2003176731(A1) |
申请公布日期 |
2003.09.18 |
申请号 |
US20020098525 |
申请日期 |
2002.03.18 |
申请人 |
BARVE PRASHANT PURUSHOTTAM;JOSHI SUNIL SHANKAR;SHINDE RAVINDRA WILLIAM;GHIKE SHRIKANT MADHUKAR;GUPTE MILIND YASHWANT;JOSHI CHANDRASHEKHAR NARAYAN;NAIK RAGHAVENDRA VENKATRAO |
发明人 |
BARVE PRASHANT PURUSHOTTAM;JOSHI SUNIL SHANKAR;SHINDE RAVINDRA WILLIAM;GHIKE SHRIKANT MADHUKAR;GUPTE MILIND YASHWANT;JOSHI CHANDRASHEKHAR NARAYAN;NAIK RAGHAVENDRA VENKATRAO |
分类号 |
C07C309/00;(IPC1-7):C0739/04 |
主分类号 |
C07C309/00 |
代理机构 |
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地址 |
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