发明授权
US5019217A Separation of m-xylene from o-xylene by extractive distillation using
esters
失效
使用酯通过萃取蒸馏分离间二甲苯与邻二甲苯
- 专利标题： Separation of m-xylene from o-xylene by extractive distillation using esters
- 专利标题（中）： 使用酯通过萃取蒸馏分离间二甲苯与邻二甲苯
-
申请号： US476583申请日： 1990-02-07
-
公开(公告)号： US5019217A公开(公告)日： 1991-05-28
- 发明人: Lloyd Berg , George Bentu
- 申请人： Lloyd Berg , George Bentu
- 申请人地址： MT Bozeman
- 专利权人： Berg; Lloyd
- 当前专利权人： Berg; Lloyd
- 当前专利权人地址： MT Bozeman
- 主分类号： C07C7/08
- IPC分类号： C07C7/08
摘要：
m-Xylene is difficult to separate from o-xylene by conventional distillation or rectification because of the close proximity of their boiling points. m-Xylene can be readily separated from o-xylene by using extractive distillation in which the extractive agent is a higher boiling ester. Typical examples of effective agents are diisononyl adipate, glycerol triacetate and dimethyl phthalate.
公开/授权文献
- US4502556A Vertical actuator mechanism for the legs of a walking machine 公开/授权日：1985-03-05
信息查询
