公开(公告)号：EP0090875A1

公开(公告)日：1983-10-12

申请号：EP82103036.8

申请日：1982-04-07

申请人： THE DOW CHEMICAL COMPANY

发明人： Dewald, James Richard

IPC分类号： C07C25/02 ,  C07C17/00

CPC分类号： C07C17/395 ,  C07C25/02

摘要： 3,5-Dichlorocumene is separated from a mixture comprising 3,5-dichlorocumene and 2,4-dichlorocumene by a process comprising contacting the mixture with an isopropyl group acceptor, in the presence of a catalyst comprising:

(1) at least one Lewis acid compound, and
(2) a proton source whereby the isopropyl group of 2.4-dichlorocumene is transferred, to the acceptor forming a reaction product comprising the acceptor bearing the isopropyl group, 3,5-dichlorocumene and m-dichlorobenzene. 3,5-Dichlorocumene is readily separated from this reaction product by any conventional technique, typically distillation.

摘要翻译： 通过包括使所述混合物与异丙基受体在包含以下物质的催化剂存在下接触的方法从含有3,5-二氯异丙基苯和2,4-二氯异丙基苯的混合物中分离3,5-二氯异丙苯：（1）至少一种路易斯 （2）将2.4-二氯异丙基的异丙基转移到质子源，形成包含带有异丙基的受体，3,5-二氯异丙基苯和间二氯苯的反应产物的受体。 通过任何常规技术，通常是蒸馏，3,5-二氯醌容易地从该反应产物中分离出来。

公开(公告)号：EP0002098B1

公开(公告)日：1981-08-12

申请号：EP78300306.4

申请日：1978-08-21

申请人： E.I. DU PONT DE NEMOURS AND COMPANY

发明人： Treat, Theodore Arthur

IPC分类号： C07C17/38

CPC分类号： C07C17/395

公开(公告)号：EP2939994B1

公开(公告)日：2018-07-18

申请号：EP13866573.2

申请日：2013-11-21

申请人： Asahi Glass Company, Limited

发明人： FURUTA, Shoji ,  OTSUKA, Tetsuo

IPC分类号： C07C17/386 ,  C07C21/18 ,  C07C19/03

CPC分类号： C07C17/386 ,  C07C17/18 ,  C07C17/395 ,  C07C21/18 ,  C07C19/03

摘要： To provide a method for efficiently separating 2,3,3,3-tetrafluoropropene (HFO-1234yf) and chloromethane (R40) from a composition containing HFO-1234yf and R40. A method for separating HFO-1234yf containing substantially no R40, which comprises bringing an azeotropic composition or azeotrope-like composition of HFO-1234yf and R40 into contact with a specific extraction solvent.

公开(公告)号：EP3271318A1

公开(公告)日：2018-01-24

申请号：EP16711713.4

申请日：2016-02-25

申请人： The Chemours Company FC, LLC

发明人： HUNG, Ming Hong ,  MARCHIONE, Alexander Anthony ,  MORKEN, Peter A.

IPC分类号： C07C17/093 ,  C07C17/26

CPC分类号： C07C17/395 ,  C07C17/013 ,  C07C17/093 ,  C07C17/26 ,  C07C17/263 ,  C07C19/16

摘要： The present invention is the process comprising forming a stable mixture comprising I(CF2)nI, wherein n is at least 3 and at least one of I(CF2)nI, wherein n is 1 or 2, as a contaminant in said mixture and heating said mixture to a temperature of at least 220° C. to reduce the amount of said contaminant to be no greater than 1% when said contaminant is ICF2I (n=1) and no greater than 0.1% when said contaminant is ICF2CF2I (n=2).

公开(公告)号：EP2445854B1

公开(公告)日：2016-09-21

申请号：EP10792464.9

申请日：2010-06-24

申请人： Dow AgroSciences, LLC

发明人： TRIPPEER, Michael, Lee ,  FRANK, Timothy, Charles ,  AU-YEUNG, Patrick Ho, Sing ,  BRONKEMA, Jason, Lee ,  JOHNSTON, Robin, Keith ,  PATEL, Mukund, R. ,  HOLDEN, Bruce, Stephen ,  MCCABE, Terrence ,  HICKMAN, Daniel, Alan

IPC分类号： C07C17/383 ,  C07C17/395 ,  C07C21/073

CPC分类号： C07C17/395 ,  B01D3/00 ,  B01D3/009 ,  B01D3/34 ,  C07B2200/09 ,  C07C17/383 ,  C07C21/073

公开(公告)号：EP2943455A1

公开(公告)日：2015-11-18

申请号：EP13817887.6

申请日：2013-12-20

申请人： ThyssenKrupp Industrial Solutions AG ,  Vinnolit GmbH & Co. KG

发明人： BRAUN, Manuel

IPC分类号： C07C17/25 ,  C07C17/383 ,  C07C19/045 ,  C07C21/06

CPC分类号： C07C17/395 ,  B01D3/007 ,  B01J19/245 ,  B01J2219/0004 ,  B01J2219/00074 ,  B01J2219/24 ,  C01B7/0706 ,  C07C17/25 ,  C07C17/383 ,  Y02P20/124 ,  Y02P20/51 ,  Y02P70/34 ,  C07C21/06 ,  C07C19/045

摘要： A method is described for producing vinyl chloride by thermally cracking 1,2-dichloroethane in a vinyl chloride structure, wherein a 1,2-dichloroethane pyrolysis unit is provided, wherein feed 1,2-dichloroethane is thermally cracked, the cracked gas produced therein is cooled in a downstream quench column, and the chlorohydrocarbon contained in the cracked gas is separated off in a downstream HCl column, wherein a 1,2-dichloroethane structure is connected upstream of the vinyl chloride structure, said 1,2-dichloroethane structure having a distillative purification of 1,2-dichloroethane structure, wherein at least one high-boiling column is provided for separating off the substances boiling higher than 1,2-dichloroethane, and wherein the high-boiling column is operated under excess pressure. The method is characterised in that at least one part of the vapours from the quench column is used for obtaining thermal energy which is used for heating the HCl column.

公开(公告)号：EP2939994A1

公开(公告)日：2015-11-04

申请号：EP13866573.2

申请日：2013-11-21

申请人： Asahi Glass Company, Limited

发明人： FURUTA, Shoji ,  OTSUKA, Tetsuo

IPC分类号： C07C17/386 ,  C07C21/18

CPC分类号： C07C17/386 ,  C07C17/18 ,  C07C17/395 ,  C07C21/18 ,  C07C19/03

摘要： To provide a method for efficiently separating 2,3,3,3-tetrafluoropropene (HFO-1234yf) and chloromethane (R40) from a composition containing HFO-1234yf and R40.
A method for separating HFO-1234yf containing substantially no R40, which comprises bringing an azeotropic composition or azeotrope-like composition of HFO-1234yf and R40 into contact with a specific extraction solvent.

公开(公告)号：EP1890987B1

公开(公告)日：2014-03-26

申请号：EP06758866.5

申请日：2006-05-01

申请人： ALBEMARLE CORPORATION

发明人： MUTTERER, Vincent, Luc ,  TRITZ, Jean-Philippe

IPC分类号： C07C19/075 ,  C07C17/395 ,  C07C17/16 ,  C07C17/42 ,  C07C17/38

CPC分类号： C07C19/075 ,  C07C17/16 ,  C07C17/38 ,  C07C17/395 ,  C07C17/42

公开(公告)号：EP2181082B1

公开(公告)日：2012-04-25

申请号：EP08774705.1

申请日：2008-07-03

申请人： Politecnico di Milano

发明人： METRANGOLO, Pierangelo ,  RESNATI, Giuseppe ,  CARCENAC, Yvan

IPC分类号： C07C17/392 ,  C07C17/389 ,  C07C19/16 ,  C07C211/63

CPC分类号： C07C17/392 ,  C07C17/38 ,  C07C17/389 ,  C07C17/395 ,  C07C19/16 ,  C07C211/63

摘要： The invention concerns a process for purifying α,ω-diiodoρerfluorinatcd compounds of formula 1-(CF2CF2Y)m-I comprising contacting an impure α,ω-diiodopcrfluorinated compound with a suitable sequestering agent, with formation of a reversible adduct and separating the α,ω- diiodoperfluorinated compound from the adduct itself. Diammonium dihalogenids of the general formula [R1,2,3N-(CH2)n-NR4,5,6]2*2X (R1-6=alkyl C1-C6n=8-26, X=I,Br, Cl) also called 'methonium compounds' are the preferred sequestering agents.

公开(公告)号：EP2231567A2

公开(公告)日：2010-09-29

申请号：EP08867913.9

申请日：2008-12-17

申请人： DuPont Performance Elastomers L.L.C.

发明人： REDWINE, Terry, Wayne

IPC分类号： C07C17/358 ,  C07C17/35 ,  C07C17/395 ,  C07C21/20

CPC分类号： C07C21/20 ,  C07C17/25 ,  C07C17/395

摘要： 2,3-dichlorobutadiene-1,3 of high purity is produced from 1,2,3,4-tetrachlorobutane by a process comprising the steps of dehydrochlorination, chlorination of the reaction product obtained in the dehydrochlorination step and subsequent separation of a 2,3-dichlorobutadiene-1,3 composition from the reaction product of the chlorination step.