发明名称 |
Process for preparing dinitroanthraquinones |
摘要 |
A process for preparing 1,5- and 1,8-dinitroanthraquinones having high purity by reacting anthraquinone and nitric acid and sulfuric acid, sulfuric acid being used in an amount of less than that of said nitric acid, and a method of separating the resulting 1,5-and 1,8-dinitroanthraquinone mixture into each component by using nitrobenzene and/or nitrotoluene.
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申请公布号 |
US4076734(A) |
申请公布日期 |
1978.02.28 |
申请号 |
US19720296496 |
申请日期 |
1972.10.04 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
YAMADA, EIJI;YAMADA, MUTUO;NOBUOKA, KAZUYUKI |
分类号 |
C07C;C09B1/00;(IPC1-7):C07C79/37 |
主分类号 |
C07C |
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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