发明授权
- 专利标题： CONTINUOUS PRODUCTION OF AROMATIC CARBOXYLIC ACIDS
- 专利标题（中）： 芳族羧酸的连续生产
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申请号： EP92901146.8申请日： 1991-11-21
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公开(公告)号： EP0639174B1公开(公告)日： 1996-07-17
- 发明人: TENNANT, Brent, Alan , BRYSON, Terry, Dean
- 申请人： EASTMAN CHEMICAL COMPANY
- 申请人地址： 100 North Eastman Road Kingsport, TN 37660 US
- 专利权人： EASTMAN CHEMICAL COMPANY
- 当前专利权人： EASTMAN CHEMICAL COMPANY
- 当前专利权人地址： 100 North Eastman Road Kingsport, TN 37660 US
- 代理机构： Behrens, Dieter, Dr.-Ing.
- 优先权： US619568 19901129
- 国际公布： WO9209551 19920611
- 主分类号： C07C51/265
- IPC分类号： C07C51/265 ; C07C63/26
摘要：
Disclosed is an improved process for the continuous production ofaromatic carboxylic acids such as terephthalic acid by the liquid-phase oxidation of an alkyl aromatic compound using an oxygen-containing gas. Operation of the process is improved by providing a spray of recycled reaction medium at or near the top of a columnar oxidation vessel to minimize entrainment of liquid and/or solid components of the reactor in the process off-gas.
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