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公开(公告)号：US10435340B2
公开(公告)日：2019-10-08
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
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：US10427994B2
公开(公告)日：2019-10-01
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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公开(公告)号：US10479743B2
公开(公告)日：2019-11-19
申请号：US15506363
申请日：2015-09-04
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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