发明授权
- 专利标题: Gas-phase fluorination process
- 专利标题(中): 气相氟化工艺
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申请号: US85027申请日: 1987-08-13
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公开(公告)号: US4766259A公开(公告)日: 1988-08-23
- 发明人: Leo E. Manzer , V. N. Mallikarjuna Rao
- 申请人: Leo E. Manzer , V. N. Mallikarjuna Rao
- 申请人地址: DE Wilmington
- 专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人地址: DE Wilmington
- 主分类号: C07C17/087
- IPC分类号: C07C17/087 ; C07C17/21 ; C07C17/04 ; C07C17/20 ; C07C19/02 ; C07C19/08
摘要:
An improved gas-phase process for the manufacture of 1,1-difluoro-1,2-dichloroethane and 1-fluoro-1,1,2-trichloroethane by contacting a suitable trihaloethylene and/or a tetrahaloethane with hydrogen fluoride in the presence of a metal in combination with a high fluorine content alumina, the reaction being preferably conducted under controlled conditions whereby the production of 1,1,1-trifluorochloroethane is minimized.
公开/授权文献
- US5314343A Grounding strap 公开/授权日:1994-05-24
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