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公开(公告)号：US20170240490A1
公开(公告)日：2017-08-24
申请号：US15506363
申请日：2015-09-04
IPC分类号： C07C7/08
摘要： Ethylbenzene can be separated from a C8 aromatics mixture containing ethylbenzene and a close boiling compound by extractive distillation using an extractive agent comprising a mixture of a chlorinated aromatic compound and another compound selected from furandione derivatives and organic nitriles.
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公开(公告)号：US20170247303A1
公开(公告)日：2017-08-31
申请号：US15505590
申请日：2014-09-05
发明人： Attapong THIRASAK , Alisa KAMMAFOO , Wiroon TANTHAPANICHAKOON , Zhongyi DING , Sachin JOSHI , Cole Nelson , Arnat PROMBUNGLUM
CPC分类号： C07C7/08 , B01D53/002 , C07C15/073 , C08K3/16 , C08K3/30 , C08K5/16
摘要： A process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising introducing a feed stream comprising said mixture into a first distillation column, introducing a first stream comprising a heavy solvent above the feed stream into the first distillation column, introducing an aqueous stream below the feed stream into the first distillation column.
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公开(公告)号：US20170240489A1
公开(公告)日：2017-08-24
申请号：US15505593
申请日：2014-09-05
发明人： Attapong THIRASAK , Alisa KAMMAFOO , Wiroon TANTHAPANICHAKOON , Zhongyi DING , Sachin JOSHI , Arnat PROMBUNGLUM , Worawut TAMTHAISONG , Purachet PITIPUECH
摘要： Process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising distilling said mixture in a distillation column in the presence of an extractive solvent, characterized in that the distillation column is operated at a sub-atmospheric pressure.
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