发明授权
- 专利标题: Process for producing methacrylic acid
- 专利标题(中): 生产甲基丙烯酸的方法
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申请号: US109219申请日: 1980-01-03
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公开(公告)号: US4335258A公开(公告)日: 1982-06-15
- 发明人: Takeru Onoda , Masayuki Otake , Jutaro Yamaguchi
- 申请人: Takeru Onoda , Masayuki Otake , Jutaro Yamaguchi
- 专利权人: Mitsubishi Chemical Industries, Ltd.
- 当前专利权人: Mitsubishi Chemical Industries, Ltd.
- 优先权: JPX54-3488 19790116
- 主分类号: C07C57/05
- IPC分类号: C07C57/05 ; B01J23/24 ; B01J27/00 ; B01J27/186 ; C07B61/00 ; C07C51/00 ; C07C51/377 ; C07C57/04 ; C07C67/00
摘要:
Methacrylic acid is produced by oxidative dehydrogenation of isobutyric acid in vapor phase in the presence of a lithium salt of a heteropolyacid or a reduced form of the heteropolyacid.
公开/授权文献
- US4779355A Efficient dryer and drying process 公开/授权日:1988-10-25
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