发明授权
- 专利标题: Preparation of pentachloronitrobenzene
- 专利标题(中): 五氯硝基苯的制备
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申请号: US683437申请日: 1976-05-04
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公开(公告)号: US4026955A公开(公告)日: 1977-05-31
- 发明人: Paul W. Breaux , Wendell D. Newman , Philip E. Quinnett
- 申请人: Paul W. Breaux , Wendell D. Newman , Philip E. Quinnett
- 申请人地址: CT New Haven
- 专利权人: Olin Corporation
- 当前专利权人: Olin Corporation
- 当前专利权人地址: CT New Haven
- 主分类号: C07C67/00
- IPC分类号: C07C67/00 ; C07C201/00 ; C07C205/12 ; C07C79/12
摘要:
Pentachloronitrobenzene having less than 0.6% hexachlorobenzene is prepared by reacting pentachlorobenzene with mixed nitration acid at a temperature in the range of 100.degree.-120.degree. C then heating the reaction mixture to an intermediate temperature to deplete excess nitric acid prior to melting and recrystallization.
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