发明授权
- 专利标题： Process for producing alkali metal styrenesulfonate
- 专利标题（中）： 碱式金属苯乙烯磺酸盐生产工艺
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申请号： US746531申请日： 1976-12-01
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公开(公告)号： US4110366A公开(公告)日： 1978-08-29
- 发明人: Hanzo Tamabayashi , Tatsuo Hattori , Tetsuo Tanaka , Yasuhiro Oda , Keiichi Kihara
- 申请人： Hanzo Tamabayashi , Tatsuo Hattori , Tetsuo Tanaka , Yasuhiro Oda , Keiichi Kihara
- 申请人地址： JP
- 专利权人： Toyo Soda Manufacturing Co., Ltd.
- 当前专利权人： Toyo Soda Manufacturing Co., Ltd.
- 当前专利权人地址： JP
- 优先权： JP50-149539 19751217
- 主分类号： C07C309/30
- IPC分类号： C07C309/30 ; C07C67/00 ; C07C301/00 ; C07C303/30 ; C07C303/32 ; C07C143/24
摘要：
An alkali metal styrenesulfonate is produced by extracting from an aqueous solution by contacting an aqueous solution containing an alkali metal halide and an alkali metal styrenesulfonate with an organic solvent containing a protonic acid salt of an amine of more than 7 carbon atoms as the extracting reagent, and then back-extracting the styrenesulfonic acid anions with an aqueous solution of an alkali metal hydroxide.
公开/授权文献
- US5704614A Method of servicing turbine seal 公开/授权日：1998-01-06
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