发明名称 |
Method for producing p-dichlorobenzene |
摘要 |
In a process for preparing p-dichlorobenzene by nuclear chlorination of benzene and/or chlorobenzene as the starting material with chlorine molecules, chlorination is carried out using aluminum chloride in an amount of 0.1-3 millimols per mol of the starting material and phenothiazines such as 10 H-phenothiazine-10-carboxylic acid phenyl ester in an amount of 0.1-0.9 mols per mol of aluminum chloride so as to be a chlorination degree in a range of 1.2-2.5, by which p-dichlorobenzene can be obtained in a high para-selectivity and a short reaction time.
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申请公布号 |
US2006106264(A1) |
申请公布日期 |
2006.05.18 |
申请号 |
US20050526557 |
申请日期 |
2005.10.12 |
申请人 |
KUREHA CHEMICAL INDUSTRY COMPANY LIMITED |
发明人 |
WAKASUGI TAKASHI;NONAKA TSUGIO;MIYAKAWA TADASHI;HANABUSA TAKANOBU;SUNAGAWA KAZUHIKO;MIZUSAWA SHIGERU |
分类号 |
C07C17/06;C07B61/00;C07C17/12;C07C25/08 |
主分类号 |
C07C17/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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