发明授权
- 专利标题: Process for preparing methacrylic acid
- 专利标题(中): 制备甲基丙烯酸的方法
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申请号: US624050申请日: 1984-06-25
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公开(公告)号: US4736062A公开(公告)日: 1988-04-05
- 发明人: Gary P. Hagen , Thomas G. Smith
- 申请人: Gary P. Hagen , Thomas G. Smith
- 申请人地址: IL Chicago
- 专利权人: Amoco Corporation
- 当前专利权人: Amoco Corporation
- 当前专利权人地址: IL Chicago
- 主分类号: C07C57/03
- IPC分类号: C07C57/03 ; B01J23/00 ; B01J27/18 ; C07B61/00 ; C07C51/00 ; C07C51/347 ; C07C51/353 ; C07C67/00 ; C07C51/377 ; C07C57/04 ; C07C57/065
摘要:
A process is disclosed for producing an alpha-, beta-ethylenically unsaturated monocarboxylic acid compound which comprises the aldol-type condensation of a saturated aliphatic monocarboxylic acid compound under vapor phase conditions in the presence of a hydrocarbon of 6 to 12 carbon atoms and a solid catalyst.
公开/授权文献
- US5892292A Getterer for multi-layer wafers and method for making same 公开/授权日:1999-04-06
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