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公开(公告)号:US20120101307A1
公开(公告)日:2012-04-26
申请号:US13279915
申请日:2011-10-24
申请人: Andreas LANVER , Klaus Ebel , Rainer Klopsch , Werner Bertleff , Richard Dehn , Joaquim Henrique Teles , Helmut Kronemayer , Marcus Georg Schrems
发明人: Andreas LANVER , Klaus Ebel , Rainer Klopsch , Werner Bertleff , Richard Dehn , Joaquim Henrique Teles , Helmut Kronemayer , Marcus Georg Schrems
IPC分类号: C07C41/01
CPC分类号: C07C41/06 , C07C5/29 , C07C2521/08 , C07C2601/08 , C07C2601/10 , Y02P20/127 , C07C43/184 , C07C13/12
摘要: Process for the preparation of cyclopentane derivatives of the formula I in which R is a C1- to C10-alkyl group, which comprises reacting cyclohexanol or cyclohexene or mixtures of both compounds to give 1-methyl-1-cyclopentene (1st stage) and subsequently adding a C1- to C10-alkanol onto the double bond of the 1-methyl-1-cyclopentene (2nd stage).
摘要翻译: 制备式Ⅰ的环戊烷衍生物的方法,其中R为C1-至C10烷基,其包括使环己醇或环己烯或两种化合物的混合物反应得到1-甲基-1-环戊烯(第一阶段),随后 在1-甲基-1-环戊烯的双键中加入C 1〜C 10链烷醇(第2阶段)。
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公开(公告)号:US20120101306A1
公开(公告)日:2012-04-26
申请号:US13278688
申请日:2011-10-21
申请人: Andreas LANVER , Klaus Ebel , Rainer Klopsch , Werner Bertleff , Richard Dehn , Joaquim Henrique Teles , Helmut Kronemayer , Marcus Georg Schrems
发明人: Andreas LANVER , Klaus Ebel , Rainer Klopsch , Werner Bertleff , Richard Dehn , Joaquim Henrique Teles , Helmut Kronemayer , Marcus Georg Schrems
CPC分类号: C07C1/20 , C07C5/29 , C07C29/04 , C07C41/06 , C07C2601/10 , Y02P20/127 , C07C13/12 , C07C35/06 , C07C43/184
摘要: Process for the preparation of 1-methylcyclopentene by thermal reaction of cyclohexanol or cyclohexene or mixtures of both compounds to give 1-methylcyclopentene, wherein the resulting by-products 3-methylcyclopentene and 4-methylcyclopentene (double-bond isomers of 1-methylcyclopentene) are returned to the reaction.
摘要翻译: 通过环己醇或环己烯或两种化合物的混合物的热反应制备1-甲基环戊烯得到1-甲基环戊烯的方法,其中得到的副产物3-甲基环戊烯和4-甲基环戊烯(1-甲基环戊烯的双键异构体)是 回到了反应。
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公开(公告)号:US20110257426A1
公开(公告)日:2011-10-20
申请号:US13088822
申请日:2011-04-18
IPC分类号: C07C67/02
CPC分类号: C07C67/03 , B01D3/009 , Y02P20/127 , C07C69/06
摘要: In a process for preparing carboxylic esters by transesterification, a first feed stream comprising a first carboxylic ester, e.g. methyl formate, is introduced laterally into a reaction column at least one first feed point located between top and bottom of the reaction column and a second feed stream comprising a first alcohol, e.g. ethanol, is introduced laterally into the reaction column at a second feed point located above the first feed point and are reacted in a reaction zone of the reaction column to form a second carboxylic ester and a second alcohol. The first alcohol has a higher molecular weight than the second alcohol. A product fraction comprising the second carboxylic ester and unreacted first carboxylic ester is taken off at an offtake point located above the second feed point. At the bottom of the reaction column, a bottom fraction comprising the second alcohol and unreacted first alcohol is taken off. The product fraction is separated by distillation at a pressure which is different from the pressure in the reaction column into second carboxylic ester and a fraction comprising unreacted first carboxylic ester and the fraction comprising unreacted first carboxylic ester is at least partly recirculated to the reaction zone.
摘要翻译: 在通过酯交换制备羧酸酯的方法中,第一进料流包含第一羧酸酯,例如 甲酸甲酯在反应塔中横向引入位于反应塔顶部和底部之间的至少一个第一进料点和第二进料流,所述第二进料流包含第一醇。 乙醇,在位于第一进料点上方的第二进料点侧向引入反应塔中,并在反应塔的反应区中反应形成第二个羧酸酯和第二个醇。 第一种醇的分子量比第二种醇高。 包含第二羧酸酯和未反应的第一羧酸酯的产物级分在位于第二进料点上方的出料点处脱出。 在反应塔的底部,除去包含第二醇和未反应的第一醇的底部馏分。 通过在不同于反应塔中的压力的压力下将产物馏分分离成第二羧酸酯,并且包含未反应的第一羧酸酯的馏分和包含未反应的第一羧酸酯的馏分至少部分地再循环到反应区。
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公开(公告)号:US20180208532A1
公开(公告)日:2018-07-26
申请号:US15744324
申请日:2016-07-15
申请人: Andrei-Nicolae PARVULESCU , Ulrich MÜLLER , Thomas FENLON , Sumana CHATURVEDULA , Stefan RÜDENAUER , Andreas LANVER , Ralf PELZER , Klaus EBEL
发明人: Andrei-Nicolae PARVULESCU , Ulrich MÜLLER , Thomas FENLON , Sumana CHATURVEDULA , Stefan RÜDENAUER , Andreas LANVER , Ralf PELZER , Klaus EBEL
CPC分类号: C07C41/18 , B01J29/7007 , B01J29/7038 , B01J29/86 , C07C43/215
摘要: A process for preparing an arylpropene from a diarylpropane by gas phase thermolysis in the presence of boron containing zeolitic material comprising a membered ring (MR) pore system greater than 10 MR.
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