发明授权
US06359177B1 Process for separating mixtures of materials having different boiling points
有权
用于分离具有不同沸点的材料的混合物的方法
- 专利标题： Process for separating mixtures of materials having different boiling points
- 专利标题（中）： 用于分离具有不同沸点的材料的混合物的方法
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申请号： US09738297申请日： 2000-12-15
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公开(公告)号： US06359177B1公开(公告)日： 2002-03-19
- 发明人: Bill L. Brady , Guenther Weymans , Berthold Keggenhoff
- 申请人： Bill L. Brady , Guenther Weymans , Berthold Keggenhoff
- 主分类号： C07C20900
- IPC分类号： C07C20900
摘要：
A mixture of materials having different boiling points is separated into fractions having different boiling points. The separated fraction containing the desired product is stripped using the vapors of a lower boiling fraction. The process of the present invention is particularly useful for recovering a desired isomer or isomer mixture from a technical mixture obtained during production of an aromatic amine such as toluenediamine. Little or no unwanted isomer or by-product is present in the isomer or isomer mixture product of this process.
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