公开(公告)号：US07193115B2

公开(公告)日：2007-03-20

申请号：US10494762

申请日：2002-11-05

申请人： Eckhard Ströfer ,  Martin Sohn ,  Hans Hasse ,  Klemens Schilling

发明人： Eckhard Ströfer ,  Martin Sohn ,  Hans Hasse ,  Klemens Schilling

IPC分类号： C07C47/00 ,  A23J7/00

CPC分类号： C07C47/04 ,  C07C45/79 ,  C07C45/82 ,  C07C47/02

摘要： In an aqueous formaldehyde solution comprising formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x of ≧65% by weight, the mean molar mass M of the polyoxymethylene glycols is, as a function of the formaldehyde concentration, equal to or less than the values given by equation I: ( M _ g ⁢ / ⁢ mol ) = 48 + 6.589 · 10 - 1 · ( x % ⁢ ⁢ by ⁢ ⁢ weight ) + 4.725 · 10 2 · ⁢ ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 2 - 3.434 · 10 - 3 · ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 3 + ⁢ 9.625 · 10 - 5 · ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 4 - 1.172 · 10 6 · ⁢ ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 5 + 5.357 · 10 - 9 · ( x % ⁢ ⁢ by ⁢ ⁢ weight ) 6 ( I ) where: M is the mean molar mass, and x is the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in % by weight (total formaldehyde concentration).

公开(公告)号：US20050040359A1

公开(公告)日：2005-02-24

申请号：US10494762

申请日：2002-11-05

申请人： Eckhard Stroeffer ,  Martin Sohn ,  Hans Hasse ,  Klemens Schilling

发明人： Eckhard Stroeffer ,  Martin Sohn ,  Hans Hasse ,  Klemens Schilling

IPC分类号： C07C45/86 ,  C07C31/02 ,  C07C31/20 ,  C07C45/79 ,  C07C45/82 ,  C07C47/04 ,  C07C47/058

CPC分类号： C07C47/04 ,  C07C45/79 ,  C07C45/82 ,  C07C47/02

摘要： In an aqueous formaldehyde solution comprising formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x of ≧65% by weight, the mean molar mass {overscore (M)} of the polyoxymethylene glycols is, as a function of the formaldehyde concentration, equal to or less than the values given by equation I: ( M _ g / mol ) = 48 + 6.589 · 10 - 1 · ( x % ⁢   ⁢ by ⁢   ⁢ weight ) + 4.725 · 10 2 ·   ⁢ ( x % ⁢   ⁢ by ⁢   ⁢ weight ) 2 - 3.434 · 10 - 3 · ( x % ⁢   ⁢ by ⁢   ⁢ weight ) 3 +   ⁢ 9.625 · 10 - 5 · ( x % ⁢   ⁢ by ⁢   ⁢ weight ) 4 - 1.172 · 10 6 ·   ⁢ ( x % ⁢   ⁢ by ⁢   ⁢ weight ) 5 + 5.357 · 10 - 9 · ( x % ⁢   ⁢ by ⁢   ⁢ weight ) 6 ( I ) where: {overscore (M)} is the mean molar mass, and x is the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in % by weight (total formaldehyde concentration).

公开(公告)号：US06610888B1

公开(公告)日：2003-08-26

申请号：US09583290

申请日：2000-05-31

申请人： Eckhard Ströfer ,  Stephan Scholl ,  Hans Hasse

发明人： Eckhard Ströfer ,  Stephan Scholl ,  Hans Hasse

IPC分类号： C07C21100

CPC分类号： C07C45/82 ,  C07B63/00 ,  C07C29/80 ,  C07C47/04 ,  C07C31/22 ,  C07C31/20

摘要： A method of reacting a solution comprising a mixture of chemical compounds which are in chemical equilibrium with one another with at least one further chemical compound (9) is provided. The method comprises the following steps: fractionation of the solution by means of a separation method to give at least two fractions (5, 6) which are enriched in different chemical compounds of the mixture; and reaction of a fraction (5) with the further chemical compound or compounds (9). The fractionation is advantageously carried out using a film evaporator (1). Unreacted fractions (6) can be recirculated via a residence time vessel (3) back to the fractionation step. The method is particularly suitable for reactions of an aqueous formaldehyde solution in which various components of the solution (formaldehyde, methylene glycol, polyoxymethylene glycols) react in different ways.

摘要翻译： 提供了使包含与化学平衡化学平衡的化合物的混合物的溶液与至少一种其它化合物（9）反应的方法。 该方法包括以下步骤：通过分离方法对溶液进行分级，得到富含混合物不同化合物的至少两个级分（5,6）; 以及级分（5）与其它化合物或化合物（9）的反应。 有利的是使用薄膜蒸发器（1）进行分馏。 未反应的馏分（6）可以通过停留时间容器（3）再循环回分馏步骤。 该方法特别适合甲醛水溶液的反应，其中溶液的各种组分（甲醛，亚甲基二醇，聚氧化亚甲基二醇）以不同的方式反应。

公开(公告)号：US07713387B2

公开(公告)日：2010-05-11

申请号：US10583698

申请日：2004-12-21

申请人： Markus Siegert ,  Neven Lang ,  Eckhard Ströfer ,  Achim Stammer ,  Thorsten Friese ,  Hans Hasse

发明人： Markus Siegert ,  Neven Lang ,  Eckhard Ströfer ,  Achim Stammer ,  Thorsten Friese ,  Hans Hasse

IPC分类号： B01D3/00 ,  C07D323/06 ,  C07C45/78

CPC分类号： C07D323/06

摘要： A process for removing trioxane from a use stream I of formaldehyde, trioxane and water, by a) providing a use stream I of formaldehyde as the main component and trioxane and water as the secondary components, b) mixing the use stream I with a recycle stream VII to obtain a feed stream Ia, c) distilling the use stream Ia in a first distillation stage to obtain a stream II of formaldehyde as the main component and water as the secondary component, and a stream III of trioxane as the main component and water and formaldehyde as the secondary components, d) distilling the stream III in a second distillation stage having a pressure higher than in the first distillation stage, to obtain a stream IV of trioxane and a stream V of trioxane as the main component and water and formaldehyde as the secondary components, e) distilling the stream V in a third distillation stage to obtain a stream VI of water and the recycle stream VII of trioxane as the main component and water and formaldehyde as the secondary components.

摘要翻译： 一种从甲醛，三恶烷和水的使用流I中除去三恶烷的方法，通过以下步骤：a）提供以甲醛为主要成分的使用流I和作为第二组分的三恶烷和水，b）将使用流I与再循环 流VII以获得进料流Ia，c）在第一蒸馏阶段中蒸馏出使用流Ia以获得作为主要组分的甲醛的流II和作为第二组分的水，以及作为主要组分的三恶烷的流III和 水和甲醛作为次要组分，d）在具有高于第一蒸馏阶段的压力的第二蒸馏阶段中蒸馏料流III，得到三恶烷的流IV和三恶烷的流V作为主要成分， 甲醛作为次要组分，e）在第三蒸馏阶段中蒸馏物流V以获得水的流VI和三恶烷的再循环流VII作为主要成分，水和甲醛为t 他的次要成分。

公开(公告)号：US07827820B2

公开(公告)日：2010-11-09

申请号：US10557423

申请日：2004-05-21

申请人： Thomas Weimer ,  Michael Hackner ,  Hans Hasse ,  Norbert Stroh ,  Eckehart Walitza

发明人： Thomas Weimer ,  Michael Hackner ,  Hans Hasse ,  Norbert Stroh ,  Eckehart Walitza

IPC分类号： F25B15/00

CPC分类号： F25B15/14 ,  Y02A30/277 ,  Y02B30/62

摘要： A thermodynamic machine for the absorption and emission of heat at different temperatures has at least one thermodynamic device with at least one membrane separating a gas phase and a liquid phase provided for transport of heat, wherein the at least one membrane is permeable for at least one component contained in the gas and liquid phases. The at least one membrane is a porous membrane or a solution diffusion membrane or a modification of the porous membrane or a modification of the solution diffusion membrane.

摘要翻译： 用于在不同温度下吸收和释放热量的热力学机构具有至少一个热力学装置，至少一个膜分离用于传输热量的气相和液相，其中所述至少一个膜可透过至少一个 气相和液相中所含的组分。 至少一个膜是多孔膜或溶液扩散膜或多孔膜的改性或溶液扩散膜的改性。

公开(公告)号：US07671240B2

公开(公告)日：2010-03-02

申请号：US11917528

申请日：2006-06-12

申请人： Eckhard Stroefer ,  Hans Hasse ,  Sergej Blagov

发明人： Eckhard Stroefer ,  Hans Hasse ,  Sergej Blagov

IPC分类号： C07C41/56 ,  C08G2/08

CPC分类号： C07C41/48 ,  C07C41/56 ,  C07C41/58 ,  C08G2/08 ,  C07C43/30

摘要： Processes for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDMEn=3,4) include feeding a reaction mixture of an aqueous formaldehyde solution and methanol into a reactive evaporator and separating into a first low boiler fraction and a first high boiler fraction, recycling the first high boiler fraction into the reactor, feeding the first low boiler fraction into a first distillation column and separating into a second low boiler fraction and a second high boiler fraction, recycling the second high boiler fraction into the reactive evaporator, feeding the second low boiler fraction into a second distillation column and separating into a third low boiler fraction and a third high boiler fraction, feeding the third high boiler fraction into a phase separation apparatus and separating into an aqueous phase and an organic phase, and feeding the organic phase into a third distillation column and separating into a low and high boiler fractions.

摘要翻译： 制备三 - 和四甲基二醇二甲醚（POMDMEn = 3,4）的方法包括将甲醛水溶液和甲醇的反应混合物进料到反应蒸发器中，并分离成第一低沸点馏分和第一高沸点馏分，循环利用 将第一高锅炉馏分进入反应器，将第一低沸点馏分进料到第一蒸馏塔中并分离成第二低沸点馏分和第二高沸点馏分，将第二高沸点馏分再循环到反应蒸发器中，将第二低沸点馏分 将馏分分馏成第二蒸馏塔并分离成第三低沸点馏分和第三高沸点馏分，将第三高沸点馏分进料到相分离装置中并分离成水相和有机相，并将有机相进料至 第三蒸馏塔并分离成低和高沸点馏分。

公开(公告)号：US06605192B1

公开(公告)日：2003-08-12

申请号：US09787616

申请日：2001-03-20

申请人： Gerhard Theis ,  Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant

发明人： Gerhard Theis ,  Till Adrian ,  Bernd Bessling ,  Hans Hasse ,  Frans Vansant

IPC分类号： B01D338

CPC分类号： C07C29/80 ,  Y10S203/20 ,  C07C31/202

摘要： A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.

摘要翻译： 一种从水解中回收高纯度单乙二醇的方法，通过压力脱水，优选在电池中进行蒸馏产物，真空脱水和随后的纯化蒸馏，其中在真空脱水期间，取出含有单乙二醇的水流 浓度低于1重量％，优选低于0.1重量％，中等锅炉和低锅炉。 取出的水流，任选地在进一步后处理之后，从体系中除去。

公开(公告)号：US07999140B2

公开(公告)日：2011-08-16

申请号：US11917192

申请日：2006-06-12

申请人： Eckhard Stroefer ,  Heiner Schelling ,  Hans Hasse ,  Sergej Blagov

发明人： Eckhard Stroefer ,  Heiner Schelling ,  Hans Hasse ,  Sergej Blagov

IPC分类号： C07C41/18

CPC分类号： C07C41/50 ,  C07C41/58 ,  C07C43/303 ,  C07C43/30

摘要： A process for preparing polyoxymethylene dialkyl ethers of the formula H2m+1CmO(CH2O)nCmH2m+1 where n=2-10, m, identically or differently,=1 or 2, in which a dialkyl ether selected from dimethyl ether, methyl ethyl ether and diethyl ether, and trioxane are fed into a reactor and reacted in the presence of an acidic catalyst, the amount of water introduced into the reaction mixture by the dialkyl ether, trioxane and/or the catalyst being

摘要翻译： 制备式H2m + 1CmO（CH2O）nCmH2m + 1的聚氧化亚甲基二烷基醚的方法，其中n = 2-10，m，相同或不同，= 1或2，其中选自二甲醚，甲基乙基醚 和二乙醚和三恶烷进料到反应器中并在酸性催化剂存在下反应，基于二烷基醚，三恶烷和/或催化剂引入到反应混合物中的水的量基于 反应混合物。

公开(公告)号：US20100152466A1

公开(公告)日：2010-06-17

申请号：US12063171

申请日：2006-08-04

申请人： Neven Lang ,  Eckhard Stroefer ,  Achim Stammer ,  Thorsten Friese ,  Markus Siegert ,  Hans Hasse ,  Thomas Gruetzner ,  Sergej Blagov

发明人： Neven Lang ,  Eckhard Stroefer ,  Achim Stammer ,  Thorsten Friese ,  Markus Siegert ,  Hans Hasse ,  Thomas Gruetzner ,  Sergej Blagov

IPC分类号： C07D323/06

CPC分类号： C07D323/06 ,  Y02P20/125

摘要： The invention relates to an integrated process for preparing trioxane from formaldehyde in which a stream A1 comprising water and formaldehyde and a recycle stream B2 consisting substantially of water and formaldehyde are fed to a trioxane synthesis reactor in which the formaldehyde is converted to trioxane to obtain a product stream A2 comprising trioxane, water and formaldehyde; stream A2 is fed to a first distillation column and distilled at a pressure in the range from 0.1 to 2.5 bar to obtain a stream B1 enriched in trioxane, and the stream B2 consisting substantially of water and formaldehyde; stream B1 and a recycle stream D1 comprising trioxane, water and formaldehyde are fed to a second distillation column and distilled at a pressure in the range from 0.2 to 17.5 bar to obtain a product stream C2 consisting substantially of trioxane, and a stream C1 comprising trioxane, water and formaldehyde; stream C1 is fed to a third distillation column and distilled at a pressure in the range from 0.1 to 2.5 bar to obtain the recycle stream D1 comprising trioxane, water and formaldehyde, and a stream D2 consisting substantially of water and formaldehyde.

摘要翻译： 本发明涉及从甲醛制备三恶烷的综合方法，其中将包含水和甲醛的流A1和基本上由水和甲醛组成的再循环流B2进料到三恶烷合成反应器中，其中甲醛被转化成三恶烷，以获得 产物流A2包含三恶烷，水和甲醛; 将料流A2加入到第一蒸馏塔中，并在0.1-2.5巴的压力下进行蒸馏，得到富含三恶烷的料流B1，基本上由水和甲醛组成的料流B2; 将料流B1和包含三恶烷，水和甲醛的再循环流D1进料至第二蒸馏塔，并在0.2至17.5巴的压力下蒸馏，得到基本上由三恶烷组成的产物流C2和包含三恶烷的料流C1 ，水和甲醛; 将料流C1进料至第三蒸馏塔并在0.1-2.5巴的压力下进行蒸馏以获得包含三恶烷，水和甲醛的再循环流D1和基本上由水和甲醛组成的料流D 2。

公开(公告)号：US20100130756A1

公开(公告)日：2010-05-27

申请号：US12593964

申请日：2008-03-27

申请人： Eckhard Stroefer ,  Neven Lang ,  Markus Siegert ,  Hans Hasse

发明人： Eckhard Stroefer ,  Neven Lang ,  Markus Siegert ,  Hans Hasse

IPC分类号： C07D323/06

CPC分类号： C07D323/06

摘要： A process for preparing trioxane from trioxymethylene glycol dimethyl ether (POMDMEn=3) by converting trioxymethylene glycol dimethyl ether in the presence of an acidic catalyst and subsequent distillative workup of the reaction mixture, comprising the steps of: a) feeding trioxymethylene glycol dimethyl ether (POMDMEn=3) or a mixture comprising trioxymethylene glycol dimethyl ether into a reactor and converting it in the presence of an acidic catalyst to a mixture a comprising trioxane, formaldehyde, water, methylene glycol (MG), polyoxymethylene glycols (MGn>1), methanol, hemiformals (HF), methylal (POMDMEn=1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>1); b) distillatively separating the reaction mixture a into a low boiler fraction b1 comprising trioxane, formaldehyde, water, methylene glycol, methanol, hemiformal (HFn=1), methylal and dioxymethylene glycol dimethyl ether (POMDMEn=2), and a high boiler fraction b2 comprising polyoxymethylene glycols (MGn>1), hemiformals (HFn>1) and polyoxymethylene glycol dimethyl ethers (POMDMEn>2); c) distillatively separating the low boiler fraction b1 into a low boiler fraction c1 comprising formaldehyde, water, methylene glycol, methanol, hemiformal (HFn=1), methylal and dioxymethylene glycol dimethyl ether (POMDMEn=2), and a high boiler fraction c2 comprising trioxane.

摘要翻译： 一种通过在酸性催化剂存在下转化三甘醇二甲醚和随后的反应混合物的蒸馏后处理由三甘醇二甲醚（POMDMEn = 3）制备三恶烷的方法，包括以下步骤：a）将三亚甲基二醇二甲醚 POMDMEn = 3）或包含三亚甲基二醇二甲醚的混合物加入到反应器中并在酸性催化剂存在下将其转化为包含三恶烷，甲醛，水，亚甲基二醇（MG），聚氧化亚甲基二醇（MGn1）， 甲醇，半缩甲醛（HF），甲缩醛（POMDMEn = 1）和聚氧化亚甲基二醇二甲醚（POMDMEn> 1）; b）将反应混合物a蒸馏分离成包含三恶烷，甲醛，水，亚甲基二醇，甲醇，半缩甲醛（HFn = 1），甲缩醛和二甲亚甲基二醇二甲醚（POMDMEn = 2）的低沸点馏分b1和高沸点馏分 b2包含聚甲醛二醇（MGn> 1），半缩甲醛（HFn1）和聚甲醛二醇二甲醚（POMDMEn> 2）; c）将低沸点馏分b1蒸馏分离成包含甲醛，水，亚甲基二醇，甲醇，半缩甲醛（HFn = 1），甲缩醛和二羟甲基二醇二甲醚（POMDMEn = 2）的低沸点馏分c1，以及高锅炉馏分c2 包括三恶烷。