公开(公告)号：EP1931650A1

公开(公告)日：2008-06-18

申请号：EP06793286.3

申请日：2006-09-06

Applicant: BASF SE

Inventor： SIEGERT, Markus ,  LANG, Neven ,  STRÖFER, Eckhard ,  STAMMER, Achim

IPC: C07D317/12

CPC classification number: C07D317/12 ,  Y02P20/127

Abstract: Disclosed is a method for producing dioxolane by reacting ethylene glycol (1) with formaldehyde in aqueous solution (2) in the presence of catalysts. Said method is characterized in that the reaction is carried out in a reactive distillation column (RDK). The educts ethylene glycol (1) and aqueous formaldehyde (2) are fed to the reactive distillation column (RDK) in the central zone thereof, and a flow (3) containing dioxolane is withdrawn from the top zone of the reactive distillation column (RDK) while a bottom flow (4) containing components that are high-boiling compared to dioxolane is withdrawn.

公开(公告)号：EP1915358A1

公开(公告)日：2008-04-30

申请号：EP06778089.0

申请日：2006-08-01

Applicant: BASF SE

Inventor： LANG, Neven ,  STRÖFER, Eckhard ,  STAMMER, Achim ,  FRIESE, Thorsten ,  SIEGERT, Markus ,  HASSE, Hans ,  GRÜTZNER, Thomas ,  BLAGOV, Sergej

IPC: C07D323/06

CPC classification number: C07D323/06 ,  Y02P20/125

Abstract: The invention relates to an integrated method for producing trioxane from formaldehyde. According to said method, a flow A1 containing water and formaldehyde as well as a recirculation flow B2 substantially composed of water and formaldehyde are delivered to a trioxane synthesis reactor in which the formaldehyde is reacted to trioxane such that a product flow A2 containing trioxane, water, and formaldehyde is obtained. Flow A2 and a recirculation flow D1 containing trioxane, water, and formaldehyde are fed to a first distillation column and are distilled at a pressure ranging from 0.1 to 2.5 bar such that a trioxane-enriched flow B1 and flow B2, which is essentially composed of water and formaldehyde, are obtained. Flow B1 is delivered to a second distillation column and is distilled at a pressure ranging from 0.2 to 17.5 bar such that a product flow substantially comprising trioxane and a flow C1 containing trioxane, water, and formaldehyde are obtained. Flow C1 is fed to a third distillation column and is distilled at a pressure ranging from 1 to 10 bar such that the recirculation flow D1 containing trioxane, water, and formaldehyde as well as a flow D2 that is substantially composed of water are obtained.

公开(公告)号：EP2262819B1

公开(公告)日：2012-08-08

申请号：EP09726930.2

申请日：2009-03-26

Applicant: BASF SE

Inventor： BOCK, Michael ,  HUTTENLOCH, Oliver ,  DECK, Patrick ,  BEY, Oliver ,  SCHELLING, Heiner ,  SIEGERT, Markus

IPC: C05G3/08 ,  C07F9/22 ,  C05C11/00

CPC classification number: C07F9/222 ,  C05G3/08

Abstract: The invention relates to a process for the preparation of triamides from ammonia and amidodichlorides.

公开(公告)号：EP2197870B1

公开(公告)日：2011-07-13

申请号：EP08804546.3

申请日：2008-09-22

Applicant: BASF SE

Inventor： SIEGERT, Markus ,  LANG, Neven ,  SZARVAS, Laszlo ,  SIGWART, Christoph ,  WINDLIN, Franz Niklaus ,  STRÖFER, Eckhard

IPC: C07D323/06 ,  B01D3/14

CPC classification number: C07D323/06

Abstract: The invention describes a method for separating trioxane from a supply flow I of formaldehyde, trioxane, and water, wherein a) a supply flow I containing formaldehyde as the main component and trioxane and water as the secondary components, is provided, b) the supply flow, a return flow V, and a return flow VII containing formaldehyde as the main component and water and trioxane as the secondary components, are fed into a first distillation step and are distilled at a pressure of 0.1 to 2.5 bars, wherein a flow II containing formaldehyde as the main component and water as the secondary component, and a flow III containing trioxane as the main component and water and formaldehyde as the secondary components, and a flow X containing water, trioxane and formaldehyde, are obtained, c) the flow III, optionally after separating low boilers from the flow III in a low boiler separating step, is distilled in a second distillation step at a pressure of 0.2 to 17.5 bars, wherein the pressure in the second distillation step is higher than the pressure in the first distillation step by 0.1 to 15 bars, wherein a flow IV, substantially consisting of trioxane, and the return flow V containing trioxane as the main component and water and formaldehyde as the secondary components, are obtained, d) the flow IV is purified in at least one further trioxane distillation step at a head pressure of 0.5 to 2 bars, wherein purified trioxane is obtained as the lateral removal flow is obtained in the reinforcement part of the column, d) the flow X, and optionally a flow IX containing water as the main component, are fed into a third distillation step and distilled at a pressure of 1 to 10 bars, wherein a flow VI substantially consisting of water, and a return flow VII containing formaldehyde as the main component and water and trioxane as the secondary component, are obtained.

公开(公告)号：EP2108011A1

公开(公告)日：2009-10-14

申请号：EP08701190.4

申请日：2008-01-02

Applicant: BASF SE

Inventor： WLOKA, Veronika ,  MATTKE, Torsten ,  BREUNINGER, Daniel ,  SIEGERT, Markus

IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50

CPC classification number: C07C209/78 ,  C07C209/84 ,  C07C211/50

Abstract: The subject of the invention is a method for the production of diphenylmethane diamine, comprising the following steps: a) reaction of aniline with formaldehyde in the presence of an acid, b) neutralization of the acid with ammonia, c) separation of the reaction mixture from step b) into an aqueous and an organic phase, d) treatment of the aqueous phase obtained from step c) with an oxide or hydroxide of an alkaline earth metal, e) removal of the ammonia obtained in step d).

公开(公告)号：EP2104726A1

公开(公告)日：2009-09-30

申请号：EP07857426.6

申请日：2007-12-12

Applicant: BASF SE

Inventor： STROEFER, Eckhard ,  SINNEN, Rudolf ,  SCHWEERS, Olaf ,  THIEL, Joachim ,  HASSE, Hans ,  SIEGERT, Markus

IPC: C10L1/185 ,  C10L10/02 ,  C10L10/06 ,  C10L1/198

CPC classification number: C10L10/06 ,  C10L1/1852 ,  C10L1/1985 ,  C10L10/02

Abstract: Fuel mixture comprising (i) diesel oil and (ii) polyoxymethylene dialkyl ether of the general formula 1: R-O-(CH2O)n-R', where R and R' are defined as follows: R: methyl, ethyl, propyl, butyl, R': methyl, ethyl, propyl, butyl, n: 2, 3, 4, 5, 6, 7, 8, where the fuel mixture has sulfur content of

公开(公告)号：EP1915358B1

公开(公告)日：2008-12-17

申请号：EP06778089.0

申请日：2006-08-01

Applicant: BASF SE

Inventor： LANG, Neven ,  STRÖFER, Eckhard ,  STAMMER, Achim ,  FRIESE, Thorsten ,  SIEGERT, Markus ,  HASSE, Hans ,  GRÜTZNER, Thomas ,  BLAGOV, Sergej

IPC: C07D323/06

CPC classification number: C07D323/06 ,  Y02P20/125

Abstract: The invention relates to an integrated method for producing trioxane from formaldehyde. According to said method, a flow A1 containing water and formaldehyde as well as a recirculation flow B2 substantially composed of water and formaldehyde are delivered to a trioxane synthesis reactor in which the formaldehyde is reacted to trioxane such that a product flow A2 containing trioxane, water, and formaldehyde is obtained. Flow A2 and a recirculation flow D1 containing trioxane, water, and formaldehyde are fed to a first distillation column and are distilled at a pressure ranging from 0.1 to 2.5 bar such that a trioxane-enriched flow B1 and flow B2, which is essentially composed of water and formaldehyde, are obtained. Flow B1 is delivered to a second distillation column and is distilled at a pressure ranging from 0.2 to 17.5 bar such that a product flow substantially comprising trioxane and a flow C1 containing trioxane, water, and formaldehyde are obtained. Flow C1 is fed to a third distillation column and is distilled at a pressure ranging from 1 to 10 bar such that the recirculation flow D1 containing trioxane, water, and formaldehyde as well as a flow D2 that is substantially composed of water are obtained.

Abstract translation: 本发明涉及由甲醛生产三恶烷的综合方法。 根据所述方法，将含有水和甲醛的流A1以及基本上由水和甲醛组成的再循环流B2输送到三烷合成反应器中，在该反应器中甲醛与三烷反应，从而产生含有三烷，水 ，并获得甲醛。 将含有三恶烷，水和甲醛的流动A2和再循环流D1送入第一蒸馏塔并在0.1-2.5巴的压力下蒸馏，使得富含三烷的流B1和流B2基本上由 水和甲醛。 将流B1输送至第二蒸馏塔并在0.2至17.5巴范围内的压力下蒸馏，使得获得基本上包含三烷和含三烷，水和甲醛的流C1的产物流。 将流C1供入第三蒸馏塔并在1-10巴的压力下蒸馏，从而获得包含三烷，水和甲醛的再循环流D1以及基本上由水组成的流D2。

公开(公告)号：EP1912965A1

公开(公告)日：2008-04-23

申请号：EP06764207.4

申请日：2006-07-19

Applicant: BASF SE

Inventor： LANG, Neven ,  STRÖFER, Eckhard ,  STAMMER, Achim ,  FRIESE, Thorsten ,  SIEGERT, Markus ,  HASSE, Hans ,  GRÜTZNER, Thomas ,  BLAGOV, Sergej

IPC: C07D323/06

CPC classification number: C07D323/06 ,  Y02P20/125

Abstract: The invention relates to an integrated process for preparing trioxane from formaldehyde, comprising the steps of: a) feeding a stream A1 comprising water and formaldehyde and a recycle stream B2 consisting essentially of water and formaldehyde to a trioxane synthesis reactor and allowing them to react to obtain a product stream A2 comprising trioxane, water and formaldehyde; b) feeding stream A2 to a first low-pressure distillation column and distilling it at a pressure of 0.1 to 2.5 bar to obtain a stream B1 which has been enriched in trioxane and additionally comprises water and formaldehyde and the recycle stream B2 which consists essentially of formaldehyde and water; c) feeding stream B1 and a recycle stream D1 which comprises trioxane, water and formaldehyde to a second low-pressure distillation column and distilling them at a pressure of 0.1 to 2.5 bar to obtain a stream C1 comprising predominantly trioxane and additionally formaldehyde and water, and a stream C2 consisting essentially of formaldehyde and water; d) feeding stream C1 to a high-pressure distillation column and distilling it at a pressure of 0.2 to 17.5 bar to obtain the recycle stream D1 and a product stream D2 consisting essentially of trioxane, wherein a removal of the low boilers present in streams B1 and/or C1 can be undertaken between steps b) and c) or c) and d).

Abstract translation: 包括以下步骤：a）将包含水和甲醛的料流A1和基本上由水和甲醛组成的再循环料流B2供入三烷合成反应器中，并使其与三烷合成反应器反应 获得包含三恶烷，水和甲醛的产物流A2; b）将物流A2进料到第一低压蒸馏塔中，并在0.1-2.5巴的压力下将其蒸馏以获得富含三烷并另外包含水和甲醛的物流B1和基本上由 甲醛和水; c）将物流B1和包含三恶烷，水和甲醛的循环物流D1加入到第二低压蒸馏塔中，并在0.1-2.5巴的压力下蒸馏它们以获得主要包含三烷和甲醛和水的物流C1， 和主要由甲醛和水组成的物流C2; d）将物流C1进料至高压蒸馏塔并在0.2至17.5巴的压力下将其蒸馏以获得再循环物流D1和基本上由三恶烷组成的产物物流D2，其中去除存在于物流B1中的低沸物 和/或C1可以在步骤b）和c）或c）和d）之间进行。