- 专利标题: Process for production of 2,6-dimethylnaphthalene
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申请号: US405966申请日: 1989-09-12
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公开(公告)号: US5023390A公开(公告)日: 1991-06-11
- 发明人: Takafumi Abe , Shuji Ebata , Hiroshi Machida , Koichi Kida
- 申请人: Takafumi Abe , Shuji Ebata , Hiroshi Machida , Koichi Kida
- 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: JPX63-247372 19881003
- 主分类号: B01J21/04
- IPC分类号: B01J21/04 ; B01J23/86 ; B01J27/12 ; C07B61/00 ; C07C1/00 ; C07C1/20 ; C07C1/24 ; C07C5/41 ; C07C15/24 ; C07C45/00 ; C07C45/46 ; C07C45/49 ; C07C49/76 ; C07C67/00
摘要:
A process for production of 2,6-dimethylnaphthalene is disclosed; comprising the steps: (1) an acylation step where 2,4-dimethylisobutyrophenone is produced from m-xylene, propylene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the above 2,4-dimethylisobutyrophenone is hydrogenated: and (3) a dehydrogenation and cyclization step where the above hydrogenated product is subjected to dehydrogenation and cyclization to produce the desired 2,6-dimethylnaphthalene. The process enables efficiently producing high quality or high purity 2,6-dimethylnaphthalene.
公开/授权文献
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