发明授权
- 专利标题: Process for the production of 4'-isobutylacetophenone
- 专利标题(中): 生产4'-异丁基苯乙酮的方法
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申请号: US593143申请日: 1990-10-05
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公开(公告)号: US5068448A公开(公告)日: 1991-11-26
- 发明人: Daniel D. Lindley , Thomas A. Curtis , Timothy R. Ryan , Edward M. de la Garza , Charles B. Hilton , Thomas M. Kenesson
- 申请人: Daniel D. Lindley , Thomas A. Curtis , Timothy R. Ryan , Edward M. de la Garza , Charles B. Hilton , Thomas M. Kenesson
- 申请人地址: NJ Somerville
- 专利权人: Hoechst Celanese Corporation
- 当前专利权人: Hoechst Celanese Corporation
- 当前专利权人地址: NJ Somerville
- 主分类号: B01J27/12
- IPC分类号: B01J27/12 ; C07B61/00 ; C07C45/46 ; C07C45/85 ; C07C49/76 ; C07C49/825 ; C07C51/60
摘要:
A continuous process is provided for the production of 4'-isobutylacetophenone (4-IBAP) comprising feeding liquid hydrogen fluoride (HF) and an acetylating agent into an extractor-reactor to form a first, HF-rich phase containing the acetylating agent, feeding isobutylbenzene (IBB) to the extractor-reactor to form a second, IBB-rich phase which is contacted with said first, HF-rich phase in a manner such that the acetylating agent reacts with IBB to form 4-IBAP which is extracted into the first, HF-rich phase, and a light IBB-rich second phase containing the bulk of unreacted IBB, externally recycling said second, IBB-rich phase to the IBB feed point in combination with fresh IBB to make up for IBB consumed in the reaction and that and dissolved in the HF-rich phase, and withdrawing HF-rich phase containing 4-IBAP from the extractor-reactor.
公开/授权文献
- US5672741A Process for the hydrolysis of fluorinated sulphonyl fluorides 公开/授权日:1997-09-30
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