公开(公告)号：US5688973A

公开(公告)日：1997-11-18

申请号：US523339

申请日：1995-09-05

申请人： Mathias Hoepp ,  Dietrich Arntz ,  Wolfgang Boeck ,  Andreas Bosse-Plois ,  Klaus Raible

发明人： Mathias Hoepp ,  Dietrich Arntz ,  Wolfgang Boeck ,  Andreas Bosse-Plois ,  Klaus Raible

IPC分类号： B01J31/10 ,  C07B61/00 ,  C07D317/12

CPC分类号： C07D317/12

摘要： Process for the production of 2-vinyl-1,3-dioxolane reacting acrolein with ethylene glycol in the presence of a solid, acidic catalyst and recovery of the reaction mixture. Selectivity may be increased in comparison with known prior art processes by performing the reaction in the presence of a solid acidic catalyst at a temperature of below 50.degree. C.; the reaction mixture, from which the catalyst has been removed, is treated by extraction using an organic solvent which substantially does not dissolve ethylene glycol and has a boiling point of above 130.degree. C.; the two phases obtained on extraction are treated for recovery by distillation and recovered educts and the organic solvent are recycled.

摘要翻译： 在固体酸性催化剂存在下，用乙二醇生产2-乙烯基-1,3-二氧戊环的方法，回收反应混合物。 与已知的现有技术方法相比，通过在低于50℃的温度下在固体酸性催化剂存在下进行反应可以增加选择性; 已经除去催化剂的反应混合物通过萃取使用基本上不溶解乙二醇并且沸点高于130℃的有机溶剂进行处理。 萃取后得到的两相进行蒸馏回收处理，回收出去，并回收有机溶剂。

公开(公告)号：US5216179A

公开(公告)日：1993-06-01

申请号：US801930

申请日：1991-12-03

申请人： Mathias Hoepp ,  Dietrich Arntz ,  Stephan Bartsch ,  Adolf Schaefer-Sindlinger ,  Wolfgang Boeck

发明人： Mathias Hoepp ,  Dietrich Arntz ,  Stephan Bartsch ,  Adolf Schaefer-Sindlinger ,  Wolfgang Boeck

IPC分类号： C07B61/00 ,  C07D317/20 ,  C07D319/04 ,  C07D319/06

CPC分类号： C07D319/06 ,  C07D317/20

摘要： Mixed cyclic acrolein glycerol acetals can be obtained by reacting acrolein with glycerol in the presence of a solid acidic catalyst and by a distillation workup in a higher space-time yield and in very high selectivity in comparison to the state of the art if the reaction is carried out in the presence of the reaction mixture as solvent, which mixture consists essentially of acrolein, glycerol, cyclic acrolein glycerol acetals and water, and in the absence of heterogeneous solvents and, to the extent necessary, the reaction mixture freed of catalyst is compounded prior to being worked up by distillation with such an amount of pH-increasing substance that it exhibits a pH in a range of 4.5 to 7 in tenfold dilution with water. The reaction preferably takes place at 10.degree. to 30.degree. C. using strongly acidic organic or inorganic ion exchangers.

摘要翻译： 混合的环状丙烯醛甘油缩醛可以通过在固体酸性催化剂的存在下使丙烯醛与甘油反应并通过蒸馏处理以更高的时空产率和非常高的选择性与本领域技术人员相比，如果反应是 在作为溶剂的反应混合物存在下进行，该混合物基本上由丙烯醛，甘油，环丙烯醛甘油缩醛和水组成，并且在不存在多相溶剂的情况下，并且在必要的程度上，将除去催化剂的反应混合物混合 在用这种一定量的pH增加物质进行蒸馏处理之前，其在pH为4.5至7的范围内，用水稀释10倍。 反应优选使用强酸性有机或无机离子交换剂在10℃至30℃下进行。

公开(公告)号：US5886230A

公开(公告)日：1999-03-23

申请号：US885044

申请日：1997-06-30

申请人： Willi Hofen ,  Wolfgang Boeck ,  Stephan Rautenberg ,  Joerg Sauer ,  Dietrich Arntz ,  Ralf Goedecke ,  Wolfgang Taugner ,  Raymund Sonnenschein

发明人： Willi Hofen ,  Wolfgang Boeck ,  Stephan Rautenberg ,  Joerg Sauer ,  Dietrich Arntz ,  Ralf Goedecke ,  Wolfgang Taugner ,  Raymund Sonnenschein

IPC分类号： B01J21/04 ,  B01J23/30 ,  C07B61/00 ,  C07C319/08 ,  C07C321/04 ,  C07C319/00

CPC分类号： C07C319/08

摘要： A process for continuous production of methyl mercaptan by catalytic reaction of methanol and hydrogen sulfide. Significant improvements in the pretreatment of the feed gas mixture and in utilization of the heat of reaction and the heat content of the product gas mixture. The energy required to vaporize the methanol is derived partly from utilization of the heat of compression of the hydrogen sulfide gas and from the heat content of the product gas leaving the reactor. The heat of reaction is utilized to heat the feed gas mixture to the reaction temperature, with the help of an external gas heater.

摘要翻译： 通过甲醇和硫化氢的催化反应连续生产甲硫醇的方法。 进料气体混合物的预处理以及反应热和产物气体混合物的热含量的显着改进。 蒸发甲醇所需的能量部分来自利用硫化氢气体的压缩热和离开反应器的产物气体的热含量。 借助于外部气体加热器，利用反应热将原料气体混合物加热至反应温度。

公开(公告)号：US5866721A

公开(公告)日：1999-02-02

申请号：US885043

申请日：1997-06-30

申请人： Willi Hofen ,  Wolfgang Boeck ,  Stephan Rautenberg ,  Joerg Sauer ,  Dietrich Arntz ,  Ralf Goedecke ,  Wolfgang Taugner ,  Raymund Sonnenschein

发明人： Willi Hofen ,  Wolfgang Boeck ,  Stephan Rautenberg ,  Joerg Sauer ,  Dietrich Arntz ,  Ralf Goedecke ,  Wolfgang Taugner ,  Raymund Sonnenschein

IPC分类号： C07C319/02 ,  C07C319/28 ,  C07C321/04 ,  C07C319/06

CPC分类号： C07C319/28 ,  Y02P20/582

摘要： A process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan. Because of improved separation of the product gas mixture into its components, less hydrogen sulfide and methyl mercaptan are lost in discharging the inert gases than in the known process. The inert gases can be burned without after-treatment of the exhaust gas. Likewise, the process water that is discharged is less contaminated with polysulfides.

摘要翻译： 从甲硫醇的催化合成中分离产物气体混合物的方法。 由于改进了产物气体混合物与其组分的分离，在排放惰性气体方面比在已知方法中更少的硫化氢和甲基硫醇就会减少。 惰性气体可以在没有废气的后处理的情况下燃烧。 同样，排出的工艺水较少被多硫化物污染。

公开(公告)号：US5852219A

公开(公告)日：1998-12-22

申请号：US885045

申请日：1997-06-30

申请人： Joerg Sauer ,  Wolfgang Boeck ,  Lukas von Hippel ,  Werner Burkhardt ,  Stephan Rautenberg ,  Dietrich Arntz ,  Willi Hofen

发明人： Joerg Sauer ,  Wolfgang Boeck ,  Lukas von Hippel ,  Werner Burkhardt ,  Stephan Rautenberg ,  Dietrich Arntz ,  Willi Hofen

IPC分类号： B01J23/04 ,  B01J23/30 ,  B01J35/10 ,  B01J37/02 ,  C07B61/00 ,  C07C319/08 ,  C07C321/04

CPC分类号： B01J23/30 ,  C07C319/08

摘要： A catalyst for the synthesis of methyl mercaptan from hydrogen sulfide and methanol, as well as a process for preparing the catalyst. The catalyst contains active aluminum oxide on which 15% to 40% by weight cesium tungstate is deposited as the activator. The activator, cesium tungstate, gives an unexpected increase in activity and selectivity as compared with potassium tungstate, which is used exclusively at the present state of the art.

摘要翻译： 用于从硫化氢和甲醇合成甲硫醇的催化剂以及制备催化剂的方法。 催化剂含有活性氧化铝，其上沉积了15重量％至40重量％的钨酸铯作为活化剂。 与钨酸钾相比，活化剂钨酸铯在活性和选择性方面出人意料的增加，这是专门用于现有技术的钨酸钾。

公开(公告)号：US5082819A

公开(公告)日：1992-01-21

申请号：US581702

申请日：1990-09-13

申请人： Wolfgang Boeck ,  Dietrich Arntz ,  Guenter Prescher ,  Werner Burkhardt

发明人： Wolfgang Boeck ,  Dietrich Arntz ,  Guenter Prescher ,  Werner Burkhardt

IPC分类号： B01J27/192 ,  B01J35/02 ,  B01J35/10 ,  C07B61/00 ,  C07C45/35 ,  C07C47/22 ,  C07C51/25

CPC分类号： B01J35/026 ,  B01J27/192 ,  C07C45/35

摘要： A catalyst is described for the production of unsaturated aldehydes by means of oxidation with a oxygen-containing gas where an active mass, containing at least the elements Mo, Bi, P and O, as well as Si-containing carrier material, is used in the form of a catalyst body with a certain ratio between the outer surface and the volume and with a defined extent in terms of space, porosity, density, specific surface, breaking strength, abrasion, and gas through-flow capability. Also described is a method of making the catalyst.

摘要翻译： 描述了一种用于通过用含氧气体氧化生产不饱和醛的催化剂，其中至少含有Mo，Bi，P和O元素以及含Si载体材料的活性物质用于 在外表面和体积之间具有一定比例的催化剂体的形式，在空间，孔隙率，密度，比表面积，断裂强度，磨损和气体穿透能力方面具有确定的程度。 还描述了制备催化剂的方法。

公开(公告)号：US5977011A

公开(公告)日：1999-11-02

申请号：US885042

申请日：1997-06-30

申请人： Joerg Sauer ,  Lukas von Hippel ,  Dietrich Arntz ,  Wolfgang Boeck

发明人： Joerg Sauer ,  Lukas von Hippel ,  Dietrich Arntz ,  Wolfgang Boeck

IPC分类号： B01J23/04 ,  B01J23/30 ,  B01J37/02 ,  C07B61/00 ,  C07C319/00 ,  C07C319/08 ,  C07C321/04 ,  B01J23/24

CPC分类号： B01J23/30 ,  C07C319/08

摘要： A catalyst for the synthesis of methyl mercaptan from hydrogen sulfide and methanol as well as a process for preparation of the catalyst. The catalyst is an active aluminum oxide onto which 5 to 25% by weight potassium tungstate is deposited as an activator. A two-stage impregnation with intermediate drying produces a catalyst which exhibits distinctly better selectivity for formation of methyl mercaptan than catalysts obtained by single-stage impregnation.

摘要翻译： 用于从硫化氢和甲醇合成甲硫醇的催化剂以及催化剂的制备方法。 该催化剂是一种活性氧化铝，5至25％（重量）的钨酸钾沉积为活化剂。 使用中间干燥的两阶段浸渍产生催化剂，其比通过单阶段浸渍获得的催化剂显示出明显更好的形成甲硫醇的选择性。

公开(公告)号：US5072052A

公开(公告)日：1991-12-10

申请号：US581696

申请日：1990-09-12

申请人： Wolfgang Boeck ,  Dietrich Arntz ,  Guenter Prescher ,  Werner Burkhardt

发明人： Wolfgang Boeck ,  Dietrich Arntz ,  Guenter Prescher ,  Werner Burkhardt

IPC分类号： B01J23/88 ,  B01J23/883 ,  B01J27/192 ,  B01J35/02 ,  B01J35/10 ,  C07B61/00 ,  C07C45/28 ,  C07C45/34 ,  C07C45/35 ,  C07C47/22

CPC分类号： B01J35/026 ,  B01J23/002 ,  B01J23/883 ,  B01J27/192 ,  C07C45/35 ,  B01J2523/00

摘要： The present invention relates to a process for the production of acrolein by catalytic gas-phase oxidation of propene with air in the presence of steam and an inert gas or waste gas from the reaction, the starting materials being passed in defined quantitative ratios at 300.degree. to 380.degree. C. under 1.4 to 2.2 bar pressure over a catalyst containing the combination of elements MoFeCoNiBiP(As)K(Rb,Cs)SmSiO in the form of a bed of individual elements, the catalyst elements fulfilling certain geometric conditions and a number of critical physico-chemical parameters and a specific load of 2 to 8 mol propene/dm.sup.3 catalyst bed/h being adjusted.

摘要翻译： 本发明涉及一种通过在蒸汽和惰性气体或来自反应的废气的存在下用空气催化气相氧化丙烯的方法，原料以规定的定量比在300℃下通过 在含有单体元素床形式的MoFeCoNiBiP（As）K（Rb，Cs）SmSiO的组合的催化剂下，在1.4至2.2巴的压力下，达到380℃，催化剂元素满足某些几何条件和数量 的关键物理化学参数和2至8摩尔丙烯/ dm 3催化剂床/ h的特定负荷进行调整。

公开(公告)号：US20140051890A1

公开(公告)日：2014-02-20

申请号：US14067098

申请日：2013-10-30

申请人： Caspar Heinrich FINKELDEI ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

发明人： Caspar Heinrich FINKELDEI ,  Pablo Zacchi ,  Benjamin Fonfe ,  Stephan Kretz ,  Martin Koerfer ,  Hans Joachim Hasselbach ,  Wolfgang Boeck

IPC分类号： C07C319/20

CPC分类号： C07C319/20 ,  C07C319/16 ,  C07C323/22

摘要： A process for preparing methylmercaptopropionaldehyde in a single reaction unit, is provided. According to the preferred embodiment, the process comprises, simultaneously contacting a gaseous mixture comprising acrolein with a liquid mixture comprising methylmercaptopropionaldehyde, methyl mercaptan, a catalyst and methylmercaptopropionaldehyde methyl thiohemiacetal in the reactive absorber; absorbing the acrolein from the gaseous mixture into the liquid mixture; reacting the absorbed acrolein with the methyl mercaptan or the methylmercaptopropionaldehyde methyl thiohemiacetal to obtain methylmercapto-propionaldehyde; removing gaseous impurities and by-products from the liquid mixture; and separating the obtained methylmercaptopropionaldehyde product from the reactive absorber, directing a portion of the separated product to storage or further processing and recycling the remaining portion to the reactive absorber; wherein the methyl mercaptan optionally comprises dimethyl sulfide or dimethyl ether.

摘要翻译： 提供了在单个反应单元中制备甲基巯基丙醛的方法。 根据优选实施方案，该方法包括同时使包含丙烯醛的气体混合物与包含甲基巯基丙醛，甲硫醇，催化剂和甲基巯基丙醛甲硫基缩醛的液体混合物接触; 将丙烯醛从气态混合物吸收到液体混合物中; 使吸收的丙烯醛与甲基硫醇或甲基巯基丙醛甲基硫代缩甲醛反应，得到巯基丙醛甲缩醛; 从液体混合物中除去气态杂质和副产物; 并将所获得的甲基巯基丙醛产物与反应性吸收剂分离，将一部分分离产物导入储存或进一步加工并将剩余部分再循环至反应性吸收剂; 其中甲硫醇任选地包括二甲基硫醚或二甲醚。

公开(公告)号：US09334215B2

公开(公告)日：2016-05-10

申请号：US14762124

申请日：2014-01-28

申请人： Wolfgang Boeck ,  Wolfgang Taugner ,  Udo Gruber

发明人： Wolfgang Boeck ,  Wolfgang Taugner ,  Udo Gruber

IPC分类号： C07C45/35 ,  C07C45/78 ,  C07C45/82

CPC分类号： C07C45/35 ,  C07C45/78 ,  C07C45/783 ,  C07C45/82 ,  C07C47/22

摘要： The invention relates to a process for separating acrolein from the process gas of a heterogeneously catalyzed oxidation of propene by means of atmospheric oxygen, wherein high boilers (including acrylic acid) are firstly separated off from the process gas by means of quenching and technical-grade acrolein having small proportions of low boilers is then obtained by means of absorption and subsequent distillation. Small amounts of a solvent by means of which, in particular, oligomers formed are separated off and the tendency for foam to be formed in the apparatuses or columns is reduced is added in the columns and heat exchangers in the work-up process. The solvent is, according to the invention, separated off and recycled in the form of an organic phase in-situ within the existing process.

摘要翻译： 本发明涉及一种通过大气氧从异丙烯催化丙烯氧化的工艺气体中分离丙烯醛的方法，其中高沸点（包括丙烯酸）首先通过淬火和技术级分离工艺气体 然后通过吸收和随后的蒸馏获得具有小比例的低锅炉的丙烯醛。 在后处理过程中，在柱和热交换器中加入少量的溶剂，特别是所形成的低聚物被除去，并且在装置或塔中形成泡沫的趋势被减少。 根据本发明，溶剂在现有方法中分离并以有机相的形式在原位再循环。