发明授权
- 专利标题: Process for producing vinyl acetate
- 专利标题(中): 乙酸乙烯酯的制造方法
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申请号: US466653申请日: 1983-02-15
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公开(公告)号: US4843170A公开(公告)日: 1989-06-27
- 发明人: Tomiya Isshiki , Yasuhiko Kijima , Akira Ito , Kenji Ishii
- 申请人: Tomiya Isshiki , Yasuhiko Kijima , Akira Ito , Kenji Ishii
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人: Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX54-134358 19791018
- 主分类号: C07C67/36
- IPC分类号: C07C67/36 ; C07C31/08 ; C07C53/08 ; C07C67/297 ; C07C69/15
摘要:
A process is disclosed for producing vinyl acetate from methanol, carbon monoxide and hydrogen which comprises the following five steps:(a) methanol is hydrocarbonylated in a hydrocarbonylation zone to produce ethanol, acetaldehyde, methyl acetate and dimethylacetal, and the products are separated in a separation zone;(b) methyl acetate is carbonylated in a carbonylation zone to produce acetic anhydride;(c) the acetaldehyde and dimethylacetal produced in the step (a) and the acetic anhydride produced in the step (b) are converted to ethylidene diacetate and methyl acetate; (d) the ethylidene diacetate produced in the step (c) is thermally decomposed to vinyl acetate and acetic acid, and the products are separated in a separation zone; and(e) the methyl acetate produced and separated in the step (a), (c) or (d) is supplied to the carbonylation step (b).
公开/授权文献
- US5043653A Noise filter for zero crossing detector 公开/授权日:1991-08-27
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