发明申请
- 专利标题： Manufacture of alkyl benzene sulphonic acids
- 专利标题（中）： 烷基苯磺酸的制造
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申请号： US10492389申请日： 2002-09-25
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公开(公告)号： US20050152866A1公开(公告)日： 2005-07-14
- 发明人: Hendrick Frick , Ajit Kumar , Lean-Luc Urbain , Didier Hauss , Pierre Solastiouk
- 申请人： Hendrick Frick , Ajit Kumar , Lean-Luc Urbain , Didier Hauss , Pierre Solastiouk
- 申请人地址： US UT Salt Lake City
- 专利权人： Huntsman International LLC
- 当前专利权人： Huntsman International LLC
- 当前专利权人地址： US UT Salt Lake City
- 优先权： GB0124274.2 20011010
- 国际申请： PCT/EP02/10738 WO 20020925
- 主分类号： C07C303/42
- IPC分类号： C07C303/42 ; C07C303/02 ; C07C303/44 ; C07C309/30 ; C07C309/31 ; A61K7/075 ; A61K31/185
摘要：
A novel, storage-stable, free-flowing, solid product consisting essentially of an alkyl benzene sulphonic acid having 1 to 4 aliphatic carbon atoms and from 7 to 11% water based on the weight of the product, said alkyl benzene sulphonic acid comprising at least 90% by weight of a single isomer based on the total weight of organic material in the product, is prepared by drying a storage-unstable, solid alkyl benzene sulphonic acid having more than 11% by weight water, said drying being effected at sub atmospheric pressure and at a temperature below the softening point of the product.
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