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公开(公告)号:US5149890A
公开(公告)日:1992-09-22
申请号:US786479
申请日:1991-11-01
申请人: Gunther Rauchschwalbe , Heinz-Ulrich Blank , Ludwig Deibele , Kaspar Hallenberger , Gerhard Ruffert
发明人: Gunther Rauchschwalbe , Heinz-Ulrich Blank , Ludwig Deibele , Kaspar Hallenberger , Gerhard Ruffert
IPC分类号: C07C201/16 , C07C205/06
CPC分类号: C07C201/16
摘要: Pure or substantially enriched 2,4- and 2,6-dinitrotoluene can be isolated from a mixture containing these isomers if such a mixture is distilled under a pressure of 0.5 to 20 mbar at a temperature of 80.degree. to 200.degree. C. with exclusion of reducing conditions.
摘要翻译: 如果将这种混合物在0.5至20毫巴的压力下在80至200℃的温度下蒸馏而排除,则纯的或基本上富含的2,4-和2,6-二硝基甲苯可以从含有这些异构体的混合物中分离出来 的减少条件。