发明授权
- 专利标题： Process for isolating methacrylic acid by extraction
- 专利标题（中）： 通过萃取分离甲基丙烯酸的方法
-
申请号： US169808申请日： 1980-07-17
-
公开(公告)号： US4533750A公开(公告)日： 1985-08-06
- 发明人: Hiroshi Matsumura , Masato Otani , Fumiki Murakami
- 申请人： Hiroshi Matsumura , Masato Otani , Fumiki Murakami
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Rayon Co. Ltd.
- 当前专利权人： Mitsubishi Rayon Co. Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX54-91991 19790719
- 主分类号： C07C51/00
- IPC分类号： C07C51/00 ; C07C51/48 ; C07C57/055 ; C07C57/07 ; C07C67/00 ; C07C57/05
摘要：
A process for isolating methacrylic acid by solvent extraction from an aqueous methacrylic acid solution obtained from a gas phase catalytic oxidation reaction, characterized in that the aqueous methacrylic acid solution is previously first contacted with an extraction solvent, polymers precipitated out from the aqueous methacrylic acid solution are removed and the remainder is fed into an extraction column.
公开/授权文献
信息查询
