发明名称 |
Supported fluorocarbonsulfonic acid polymers and an improved method for their preparation |
摘要 |
This invention discloses improved heterogeneous acid catalysts and a method for preparing these catalysts. A heterogeneous acid catalyst has been prepared by coating a carrier with an aqueous emulsion containing a fluorocarbonsulfonic acid polymer in the sulfonyl fluoride form, removing the excess water, heating to a temperature above the softening point of the polymer for a time, and then converting the polymer to the active sulfonic acid form. The substrate has pores of about 0.1 micrometers or greater and a surface area of about 20 m2/g or less. |
申请公布号 |
US4791081(A) |
申请公布日期 |
1988.12.13 |
申请号 |
US19860947788 |
申请日期 |
1986.12.30 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
CHILDRESS, DAVID L.;WEAVER, JOHN D.;TASSET, EMMETT L. |
分类号 |
B01J31/10;B01J37/02;C08F8/36;(IPC1-7):B01J31/06 |
主分类号 |
B01J31/10 |
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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