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1.发明公开VERFAHREN ZUR HERSTELLUNG VON N-VINYLPYRROLIDON AUS LACTON-FREIEM PYRROLIDON 有权一种用于从lactonfreiem吡咯烷酮制备N-乙烯基吡咯烷酮的过程
公开(公告)号：EP2229357A1
公开(公告)日：2010-09-22
申请号：EP08856062.8
申请日：2008-11-26
Applicant: BASF SE
Inventor： STAFFEL, Wolfgang , KÄSHAMMER, Stefan , KESSINGER, Roland , VOGELSANG, Regina , PAUL, Axel , TUTTELBERG, Lembit
IPC: C07D207/267
CPC classification number: C07D207/267
Abstract: The invention relates to a method for producing N-vinyl pyrrolidone by converting 2-pyrrolidone with acetylene, characterized in that the 2-pyrrolidone used as the initial material (hereafter referred to as initial 2-pyrrolidone) contains less than 1 weight unit of y-butyrolactone per 100 weight units of 2-pyrrolidone.
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2.发明授权Verfahren zur Herstellung von N-Vinylpyrrolidon aus lactonfreiem Pyrrolidon 有权一种用于从lactonfreiem吡咯烷酮制备N-乙烯基吡咯烷酮的过程
公开(公告)号：EP2229357B1
公开(公告)日：2013-06-05
申请号：EP08856062.8
申请日：2008-11-26
Applicant: BASF SE
Inventor： STAFFEL, Wolfgang , KÄSHAMMER, Stefan , KESSINGER, Roland , VOGELSANG, Regina , PAUL, Axel , TUTTELBERG, Lembit
IPC: C07D207/267
CPC classification number: C07D207/267
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公开(公告)号：EP2370397B1
公开(公告)日：2013-01-16
申请号：EP09748809.2
申请日：2009-11-12
Applicant: BASF SE
Inventor： STAFFEL, Wolfgang , VOGELSANG, Regina , KESSINGER, Roland , TUTTELBERG, Lembit , HEIDA, Bernd
IPC: C07C231/24 , C07D201/16 , C07D207/267
CPC classification number: C07C231/24 , C07D201/16 , C07D207/267 , C07C233/05
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公开(公告)号：EP2370397A1
公开(公告)日：2011-10-05
申请号：EP09748809.2
申请日：2009-11-12
Applicant: BASF SE
Inventor： STAFFEL, Wolfgang , VOGELSANG, Regina , KESSINGER, Roland , TUTTELBERG, Lembit , HEIDA, Bernd
IPC: C07C231/24 , C07D201/16 , C07D207/267
CPC classification number: C07C231/24 , C07D201/16 , C07D207/267 , C07C233/05
Abstract: A process for removing by-products from N-vinylamide-rich product mixtures (crude N-vinylamide), characterized in that an extraction of the crude N-vinylamide is performed with an organic solvent as the extractant.
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