公开(公告)号：US06692616B2

公开(公告)日：2004-02-17

申请号：US10168980

申请日：2002-06-26

申请人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Harald Rust ,  Gerhard Schulz

发明人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Harald Rust ,  Gerhard Schulz

IPC分类号： B01D314

CPC分类号： C07C29/80 ,  C07C31/225 ,  C07C31/12 ,  C07C31/245 ,  C07C31/04

摘要： A process is disclosed for the purification, by distillation, of trimethylolpropane originating from the hydrogenation of 2,2-dimethylolbutanal, said process including the following steps: (a) reaction of n-butyraldehyde with formaldehyde in the presence of catalytic amounts of a tertiary amine, and hydrogenation of the resulting mixture to give a mixture containing trimethylolpropane; (b) separation of water, methanol, trialkylamine and/or trialkylammonium formate by distillation; (c) heating of the residue obtained in (b) under reduced pressure to a temperature at which TMP is volatile and compounds boiling above TMP are cleaved, in order to separate off, by distillation, TMP and compounds more volatile than TMP; (d) distillation of the distillate obtained in (c) in order to separate off the more volatile compounds and recover pure TMP; and (e) optional distillation of the TMP obtained in (d) in order to recover TMP with a low APHA color index. A process is also disclosed in which trialkylammonium formate is distilled under mild conditions from crude mixtures of polyhydric alcohols, predominantly trimethylolpropane.

摘要翻译： 公开了一种通过蒸馏纯化来自2,2-二羟甲基丁烷的氢化的三羟甲基丙烷的方法，所述方法包括以下步骤：（a）在催化量的叔碳酸存在下，正丁醛与甲醛的反应 胺，并氢化得到的混合物，得到含有三羟甲基丙烷的混合物;（b）通过蒸馏分离水，甲醇，三烷基胺和/或三烷基铵甲酸盐;（c）将（b）中得到的残余物在减压下加热至 TMP挥发的温度和TMP沸点高的化合物被切割，以便通过蒸馏分离TMP和比TMP更易挥发的化合物;（d）蒸馏（c）中获得的馏出物，以分离出更多的 挥发性化合物，回收纯TMP; 为了回收具有低APHA颜色指数的TMP，还可以任选地蒸馏（d）中获得的TMP。还公开了一种方法，其中在温和条件下从多元醇，主要是三羟甲基丙烷的粗混合物中蒸馏出三烷基铵甲酸盐。

公开(公告)号：US06809224B2

公开(公告)日：2004-10-26

申请号：US10168999

申请日：2002-06-26

申请人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz

发明人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz

IPC分类号： C07C4582

CPC分类号： C07C45/82 ,  C07C45/83 ,  C07C47/19

摘要： Formaldehyde is removed by distillation from reaction solutions containing a methlolated alkanal which was obtained from the reaction of formaldehyde with an alkanal which has at least one acidic hydrogen atom &agr; to the carbonyl function or from the reaction of a 2-alkylacrolein or acrolein with water and formaldehyde, by a process in which this reaction was carried out in the presence of catalytic amounts of organic amine. The process permits the improved removal of formaldehyde from the reaction mixture and furthermore facilitates the hydrogenation of the alkanals thus obtained to give polyols.

摘要翻译： 从甲醛与具有至少一个羰基官能度的至少一个酸性氢原子的α-烷醛或由2-烷基丙烯醛或丙烯醛与水的反应的甲醛反应获得的含有甲基化的烷醛的反应溶液中蒸馏除去甲醛， 甲醛，通过在催化量的有机胺存在下进行该反应的方法。 该方法允许从反应混合物中改善甲醛的去除，并且进一步促进由此获得的链烷烃的氢化以产生多元醇。

公开(公告)号：US06586642B2

公开(公告)日：2003-07-01

申请号：US10168986

申请日：2002-06-26

申请人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Mathias Haake ,  Michael Koch ,  Gerhard Schulz

发明人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Mathias Haake ,  Michael Koch ,  Gerhard Schulz

IPC分类号： C07C2726

CPC分类号： C07C29/90 ,  C07C29/80 ,  Y02P20/582 ,  C07C31/20 ,  C07C31/22 ,  C07C31/245

摘要： A process for greatly improving the color index of polyhydric alcohols, especially trimethylolpropane, by hydrogenation comprises using, in the hydrogenation, an alcohol which has already been purified by distillation. The catalysts used are those conventionally employed in hydrogenations, preferably copper, nickel, palladium or ruthenium catalysts.

公开(公告)号：US06586641B2

公开(公告)日：2003-07-01

申请号：US10169001

申请日：2002-06-26

申请人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz

发明人： Matthias Dernbach ,  Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz

IPC分类号： C07C3118

CPC分类号： C07C29/80 ,  C07C31/20 ,  C07C31/22 ,  C07C31/205 ,  C07C31/245

摘要： A process is provided for increasing the yield in the preparation of polyhydric alcohols obtained from methylolated alkanals by hydrogenation, wherein derivatives of these alcohols are decomposed by adding 5 ppm to 1% by weight, preferably 100 to 1000 ppm, of a suitable acid to an anhydrous mixture containing these derivatives, heating the mixture to temperatures of 100 to 300° C. and then separating off the polyhydric alcohol by distillation. This process makes it possible simply and efficiently to decompose compounds which boil above the polyhydric alcohol and are unwanted by-products of its synthesis.

摘要翻译： 提供了一种通过氢化提高由羟甲基化的链烷醇制备的多元醇的产率的方法，其中这些醇的衍生物通过将5ppm至1wt％，优选100-1000ppm的合适的酸加成到 含有这些衍生物的无水混合物，将混合物加热至100-300℃，然后蒸馏除去多元醇。 该方法使得可以简单有效地分解沸腾在多元醇上的化合物并且是其合成的不希望的副产物。

公开(公告)号：US06187971B1

公开(公告)日：2001-02-13

申请号：US09331370

申请日：1999-06-21

申请人： Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz ,  Guido Voit

发明人： Detlef Kratz ,  Achim Stammer ,  Gerhard Schulz ,  Guido Voit

IPC分类号： C07C3118

CPC分类号： C07C45/75 ,  C07C29/141 ,  Y02P20/582 ,  C07C31/04 ,  C07C31/12 ,  C07C31/125 ,  C07C31/20 ,  C07C31/22

摘要： Methylolalkanal of the formula II (R=CH2OH, C1-C22-alkyl, aryl or C6-C22-aralkyl) is prepared spe-wise by a) reacting a C2-C24-aldehyde with formaldehyde in the presence of a tertiary amine, b) separating the reaction mixture i) into a bottom fraction comprising the compound of formula II and an incompletely methylolated compound of the formula III and a distillate stream comprising unconverted or partially converted starting materials, or ii) into an aqueous phase and an organic phase, and recycling the distillate stream or the organic phase to a), and c) subjecting the bottom fraction or the aqueous phase i) to a catalytic or thermal reaction to convert the compound of formula III to the compound of formula II and to a corresponding methylene compound of formula IV (R′=H or R) and ii) separating the reaction product into an overhead stream comprising the compound of formula IV and unconverted formaldehyde which is recycled to a), and a bottom fraction comprising the compound of formula II.

摘要翻译： 在叔胺存在下，通过使C2-C24-醛与甲醛反应制备式II的（C 1 -C 22 - 烷基，芳基或C 6 -C 22 - 芳烷基）的羟甲基烷醛，b） 将反应混合物分离）至包含式II化合物的底部馏分和式III的不完全羟甲基化的化合物和包含未转化的或部分转化的起始物质的馏出物流，或ii）进入水相和有机相，并将馏出物 流或有机相至a），和c）使底部馏分或水相）进行催化或热反应以将式III化合物转化为式II化合物和相应的式IV的亚甲基化合物（R '= H或R）和ii）将反应产物分离成包含式IV化合物和未转化甲醛的塔顶物流，将其再循环至a），以及包含式II化合物的塔底馏分。

公开(公告)号：US6018074A

公开(公告)日：2000-01-25

申请号：US68300

申请日：1998-10-05

申请人： Detlef Kratz ,  Achim Stammer ,  Tom Witzel ,  Martin Brudermuller

发明人： Detlef Kratz ,  Achim Stammer ,  Tom Witzel ,  Martin Brudermuller

IPC分类号： C07C27/02 ,  C07C29/09 ,  C07C29/128 ,  C07C29/38 ,  C07C31/22 ,  C07C35/08 ,  C07C67/02 ,  C07C67/08 ,  C07C67/44 ,  C07C69/06 ,  C07C45/00 ,  C07C31/18

CPC分类号： C07C29/38 ,  C07C29/1285 ,  C07C67/08 ,  C07C2101/14

摘要： A process for the preparation of polyalcohols comprises the stages:(a) Reaction of an alkanal or ketone with formaldehyde in aqueous solution in the presence of a tertiary amine, to form a formates containing polyalcohol product mixture,(b) removal of water, excess tertiary amine, excess formaldehyde(c) heating of remaining mixture from (b) with removal of further formaldehyde and tertiary amine with formation of the formates of the polyalcohol,(d) transfer of tertiary amine removed from stage (b) and/or from stage (c), to synthesis stage (a) and/or to the subsequent transesterification stage (e),(e) transesterification of the resulting formates of the polyalcohol from stage (c) with an alcohol of the formula ROH in the presence of a transesterification catalyst to give polyalcohols and formates of the formula ##STR1## where R is a hydrocarbon radical, preferably alkyl of 1-6, particularly preferably 1-2, carbon atoms, and(f) isolation of the polyalcohols.

摘要翻译： PCT No.PCT / EP96 / 04922 Sec。 371日期：1998年10月5日 102（e）日期1998年10月5日PCT 1996年11月11日PCT公布。 公开号WO97 / 17313 日期1997年5月15日制备多元醇的方法包括以下阶段：（a）在叔胺存在下，在水溶液中使烷醛或酮与甲醛反应，形成含有多元醇产物混合物的甲酸盐，（b） 的水，过量的叔胺，过量的甲醛（c）从（b）加热剩余的混合物，同时除去多元醇的甲酸盐形成的另外的甲醛和叔胺，（d）从阶段（b）中除去的叔胺的转移， 和（或）从阶段（c）到合成阶段（a）和/或后续酯交换反应阶段（e），（e）所得到的多元醇的甲酸酯从阶段（c）与式ROH的醇进行酯交换反应 在酯交换催化剂的存在下，得到下式的多元醇和甲酸盐，其中R是烃基，优选1-6的烷基，特别优选1-2的碳原子，和（f）多元醇的分离。

公开(公告)号：US20120065339A1

公开(公告)日：2012-03-15

申请号：US13226568

申请日：2011-09-07

申请人： Rolf-Egbert Grützner ,  Shankara Narayanan Keelapandal Ramamoorthy ,  Faissal-Ali El-Toufaili ,  Achim Gerstlauer ,  Achim Stammer

发明人： Rolf-Egbert Grützner ,  Shankara Narayanan Keelapandal Ramamoorthy ,  Faissal-Ali El-Toufaili ,  Achim Gerstlauer ,  Achim Stammer

IPC分类号： C08G69/48

CPC分类号： C08G69/48 ,  C08G69/46

摘要： Process for producing polyamides that are stable during processing, by treating the polyamide during the solid-phase postcondensation process with a gas which comprises carrier gas (inert gas), water, and acid, or an anhydride or lactone or a mixture of these or, respectively, comprises ammonia, or amine, or a mixture of these, at a temperature from 130 to 200° C. and at a pressure of from 0.01 to 10 bar.

摘要翻译： 用于制备在加工过程中稳定的聚酰胺的方法，通过在固相缩聚过程中用包含载气（惰性气体），水和酸的酸性物质或其酸酐或内酯或其混合物的气体处理聚酰胺， 分别包含氨或胺，或它们的混合物，温度为130-200℃，压力为0.01至10巴。

公开(公告)号：US08013087B2

公开(公告)日：2011-09-06

申请号：US12443554

申请日：2007-10-02

申请人： Dennis Lösch ,  Marco Krüger ,  Achim Stammer

发明人： Dennis Lösch ,  Marco Krüger ,  Achim Stammer

IPC分类号： C08F20/06 ,  C08F2/00 ,  B01J20/22 ,  B01J20/26

CPC分类号： C08F2/00 ,  C08F2/01 ,  C08F2/10 ,  C08F2/16 ,  C08F2/18 ,  C08F220/06 ,  C08F222/1006 ,  Y10S526/93

摘要： A process for preparing water-absorbing polymer beads by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets, the initiator being added to the monomer solution from 0.5 to 60 seconds before the droplets are generated.

摘要翻译： 通过在包围液滴的气相中聚合单体溶液的液滴来制备吸水聚合物珠粒的方法，该引发剂在液滴产生之前从0.5至60秒添加到单体溶液中。

公开(公告)号：US20070155972A1

公开(公告)日：2007-07-05

申请号：US10583696

申请日：2004-12-21

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

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

IPC分类号： C07D305/12 ,  C07C41/03

CPC分类号： C07D323/06 ,  B01D3/146 ,  B01D3/36 ,  Y02P20/127

摘要： A process for removing trioxane from a mixture I of formaldehyde, trioxane and water, by a) distilling the mixture I in a first distillation stage at a pressure of from 0.1 to 2 bar to obtain a stream II which comprises formaldehyde and a stream III which comprises predominantly trioxane and additionally water and formaldehyde, b) mixing the stream III with a recycle stream VII which comprises predominantly trioxane and additionally water and formaldehyde to obtain a stream IIIa which comprises predominantly trioxane and additionally water and formaldehyde, c) distilling the stream IIIa, if appropriate after removing low boilers from the stream III or IIIa in a further distillation stage, in a second distillation stage at a pressure of from 0.2 to 10 bar, the pressure in the second distillation stage being at least 0.1 bar higher than the pressure in the first distillation stage, to obtain a stream IV of trioxane and a stream V which comprises predominantly trioxane and additionally water and formaldehyde, d) distilling the stream V in a third distillation stage at a pressure of from 0.1 to 4 bar to obtain a stream VI which comprises predominantly water and additionally formaldehyde, and the recycle stream VII which comprises predominantly trioxane and additionally water and formaldehyde, e) if appropriate, distilling the stream VI in a fourth distillation stage to obtain a stream VIII which comprises predominantly water, and a stream IX which comprises predominantly formaldehyde.

摘要翻译： 一种从甲醛，三恶烷和水的混合物I中除去三恶烷的方法，通过以下步骤a）在0.1至2巴的压力下在第一蒸馏阶段中蒸馏混合物I以获得包含甲醛和流III的流II 主要包含三恶烷，另外还含有水和甲醛，b）将流III与主要包含三恶烷，另外含有水和甲醛的再循环流VII混合，得到主要含有三恶烷，另外含有水和甲醛的流IIIa，c）蒸馏流IIIa 如果适当，则在进一步蒸馏阶段从流III或IIIa除去低锅炉后，在0.2至10巴的压力的第二蒸馏阶段中，第二蒸馏阶段中的压力比压力高至少0.1巴 在第一蒸馏阶段，获得三恶烷的流IV和主要包含三恶烷并另外包含的流V 和d）在0.1至4巴的压力下在第三蒸馏阶段中蒸馏物流V以获得主要包含水和另外甲醛的物流VI，以及主要包含三恶烷和另外的水的再循环流VII，以及 甲醛，e）如果合适，在第四蒸馏阶段中蒸馏物流VI以获得主要包含水的物流VIII和主要包含甲醛的物流IX。

公开(公告)号：US20130052444A1

公开(公告)日：2013-02-28

申请号：US13588446

申请日：2012-08-17

申请人： Dietrich Scherzer ,  Philippe Desbois ,  Freddy Gruber ,  Achim Stammer

发明人： Dietrich Scherzer ,  Philippe Desbois ,  Freddy Gruber ,  Achim Stammer

IPC分类号： B29C39/06 ,  B32B5/00

CPC分类号： B29C41/08 ,  B29B9/10 ,  B29C41/28 ,  B29C41/365 ,  B29C41/50 ,  B29K2105/251 ,  B29K2277/00 ,  C08G69/16

摘要： The present invention relates to a process for producing moldings comprising (A) at least one lactam, (B) at least one activator, and (C) at least one catalyst, where (A) to (C) proceed through treatments comprising a) mixing of (A), (B), and (C), b) metering of (A), (B), and (C) into an apparatus for producing mixture droplets, and producing mixture droplets, and c) depositing the mixture droplets comprising (A), (B), and (C) on a belt, and d) producing moldings.

摘要翻译： 本发明涉及一种用于生产模制品的方法，其包含（A）至少一种内酰胺，（B）至少一种活化剂和（C）至少一种催化剂，其中（A）至（C） （A），（B）和（C）的混合，b）将（A），（B）和（C）计量加入到用于产生混合液滴的装置中，并产生混合物液滴，以及c） 在带上包含（A），（B）和（C）的液滴，以及d）制造模制品。