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    Catalyst and process for preparing 2-buten-1-ol compounds
    73.
    发明授权
    Catalyst and process for preparing 2-buten-1-ol compounds 失效
    用于制备2-丁烯-1-醇化合物的催化剂和方法

    公开(公告)号：US06278031B1

    公开(公告)日：2001-08-21

    申请号：US09759688

    申请日：2001-01-16

    申请人： Franz Josef Bröcker ,  Werner Aquila ,  Klemens Flick ,  Gerd Kaibel ,  Ernst Langguth

    发明人： Franz Josef Bröcker ,  Werner Aquila ,  Klemens Flick ,  Gerd Kaibel ,  Ernst Langguth

    IPC分类号： C07C2700

    CPC分类号： B01J27/0573 ,  B01J23/44 ,  B01J27/0576 ,  B01J35/10 ,  C07C29/56 ,  C07C33/025

    摘要： The fixed-bed catalyst comprises palladium and selenium or tellurium or a mixture of selenium and tellurium on a silicon dioxide support and has a BET surface area of from 80 to 380 m2/g and a pore volume of from 0.6 to 0.95 cm3/g in the pore diameter range from 3 nm to 300 &mgr;m, with from 80 to 95% of the pore volume being in the pore diameter range from 10 to 100 nm. It is prepared by impregnating a silicon dioxide support with a solution of a palladium compound and a selenium compound or tellurium compound or a mixture of a selenium compound and a tellurium compound, drying it and reducing it in the presence of hydrogen. The catalyst is used, in particular, for isomerizing 3-buten-1-ol compounds.

    摘要翻译： 固定床催化剂包括钯和硒或碲或硒和碲的混合物在二氧化硅载体上，并且具有80至380m 2 / g的BET表面积和0.6至0.95cm 3 / g的孔体积 孔径范围为3nm至300μm，孔体积的80至95％在孔径范围为10至100nm。它是通过用钯化合物溶液浸渍二氧化硅载体和 硒化合物或碲化合物或硒化合物和碲化合物的混合物，将其干燥并在氢气存在下还原。使用该催化剂，特别是用于异构化3-丁烯-1-醇化合物。

    Distillative separation of mixtures and apparatus for this purpose
    76.
    发明授权
    Distillative separation of mixtures and apparatus for this purpose 失效
    用于此目的的混合物和设备的蒸馏分离

    公开(公告)号：US5897748A

    公开(公告)日：1999-04-27

    申请号：US743077

    申请日：1996-11-04

    申请人： Gerd Kaibel

    发明人： Gerd Kaibel

    IPC分类号： B01D3/16 ,  B01D3/00 ,  B01D3/14 ,  B01D3/20 ,  B01D3/32

    CPC分类号： B01D3/141 ,  B01D3/008 ,  B01D3/14 ,  B01D3/20 ,  B01D3/32 ,  Y10S261/72

    摘要： To compensate the bypassing, at the edges, of the liquid flowing downward in a distillation column, in order to achieve optimum mass transfer with the ascending vapor, a specific nonuniform distribution of the liquid trickling density over the column cross-section is established including the steps of establishing a nonuniform distribution of the liquid trickling density over the column cross-section in the distillation column and adjusting the liquid trickling density in the wall regions, said nonuniform distribution being achieved bya) arranging a number of outlet orifices or the diameter of the outlet orifices of a liquid distributor orb) arranging baffles in the stripping sections at height intervals from 0.1 to 2 m, in the case of dumped packings with baffles which project into the column space from the wall by about from 0.5 to 3 times packing dimensions orc) choosing the thickness and position of an insulating layer of a column jacket in the rectifying sections of a column at operating temperatures above ambient temperature according to a temperature difference between column and environment so that a desired additional area-related liquid flow is achieved in an edge region of the column.

    摘要翻译： 为了补偿在蒸馏塔中向下流动的液体旁路旁路，为了实现与上升蒸汽的最佳质量传递，建立了液体滴流密度在柱截面上的特定不均匀分布，包括 在蒸馏塔中的柱截面上建立液体滴流密度的不均匀分布的步骤，并且调节壁区域中的液体滴注密度，所述不均匀分布通过以下步骤实现：a）布置多个出口孔或直径 液体分配器的出口孔，或b）以0.1至2米的高度间隔排列在汽提部分中的挡板，在具有挡板的倾倒式填料的情况下，该挡板从壁向墙壁空间注入约0.5至3倍的填料 尺寸或c）选择塔的整流部分中柱套的绝缘层的厚度和位置 根据柱和环境之间的温度差，操作温度高于环境温度，使得在塔的边缘区域中实现所需的附加区域相关液体流动。

    Recovery of formic acid by distillation
    77.
    发明授权
    Recovery of formic acid by distillation 失效
    通过蒸馏回收甲酸

    公开(公告)号：US4551208A

    公开(公告)日：1985-11-05

    申请号：US614280

    申请日：1984-05-25

    申请人： Kaspar Bott ,  Gerd Kaibel ,  Horst Hartmann ,  Rudolf Irnich ,  Horst Buelow

    发明人： Kaspar Bott ,  Gerd Kaibel ,  Horst Hartmann ,  Rudolf Irnich ,  Horst Buelow

    IPC分类号： C07C53/02 ,  C07C51/00 ,  C07C51/44 ,  C07C67/00 ,  B01D3/34

    CPC分类号： C07C51/44

    摘要： Formic acid is recovered, by distillation, from its mixtures with solvents of the general formula I ##STR1## where R.sup.1 is hydrogen, methyl, ethyl or vinyl and R.sup.2 and R.sup.3 are each alkyl, cycloalkyl, aryl or aralkyl, or R.sup.2 and R.sup.3 together form a 1,4- or 1,5-alkylene group, in each case of not more than 8 carbon atoms, with the provisos that the sum of the number of carbon atoms in R.sup.2 and R.sup.3 is 7 to 14 and that only one of these radicals is aryl, by a method in which the distillation is carried out in the presence of a carboxamide II which is selected from the group consisting of formamide, acetamide, propionamide and the same compounds substituted by N-methyl or N,N-dimethyl, and which has a boiling point lower than that of the solvent I.

    摘要翻译： 通过蒸馏从其与通式I的溶剂的混合物回收甲酸，其中R1是氢，甲基，乙基或乙烯基，R2和R3各自是烷基，环烷基，芳基或芳烷基，或R2和R3 一起形成1,4-或1,5-亚烷基，每种情况下不超过8个碳原子，条件是R2和R3中碳原子数之和为7〜14，只有一个 这些基团是芳基，其中蒸馏在选自甲酰胺，乙酰胺，丙酰胺和与N-甲基或N，N-二甲基甲酰胺取代的相同化合物的羧酰胺II存在下进行， 二甲基，其沸点低于溶剂I.

    Preparation of pure dimethyl carbonate
    79.
    发明授权
    Preparation of pure dimethyl carbonate 失效
    纯碳酸二甲酯的制备

    公开(公告)号：US4162200A

    公开(公告)日：1979-07-24

    申请号：US871547

    申请日：1978-01-23

    申请人： Walter Himmele ,  Karl Fischer ,  Gerd Kaibel ,  Kurt Schneider ,  Rudolf Irnich

    发明人： Walter Himmele ,  Karl Fischer ,  Gerd Kaibel ,  Kurt Schneider ,  Rudolf Irnich

    IPC分类号： B01D3/40 ,  C07C68/06 ,  C07C68/08 ,  C07C69/00 ,  C07C69/96

    CPC分类号： C07C68/065 ,  C07C68/08

    摘要： Dimethyl carbonate is obtained pure, from its solutions in methanol, by extractive distillation carried out with a temperature of from 60.degree. C. at the top to 250.degree. C. at the bottom of the column and employing, as the extractant, an aprotic organic liquid which is substantially inert toward dimethyl carbonate, boils at above 100.degree. C. at standard pressure, is miscible with dimethyl carbonate in all proportions and has a dielectric constant .epsilon. of from 4 to 90 and a dipole moment .mu. of from 1.5 to 5 Debye.

    摘要翻译： 碳酸二甲酯从其甲醇溶液中通过萃取蒸馏得到，温度为60℃，塔顶至250℃，采用萃取剂为非质子有机物 对碳酸二甲酯基本上是惰性的液体在标准压力下在高于100℃下沸腾，与所有比例的碳酸二甲酯混溶，并且介电常数ε为4-90，偶极矩μ为1.5至5德拜 。

    Process for obtaining maleic anhydride by distillation
    80.
    发明授权
    Process for obtaining maleic anhydride by distillation 有权
    通过蒸馏获得马来酸酐的方法

    公开(公告)号：US08461356B2

    公开(公告)日：2013-06-11

    申请号：US12532660

    申请日：2008-03-19

    申请人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

    发明人： Gunther Windecker ,  Gerd Kaibel ,  Michael Steiniger ,  Thilo Buntrock ,  Jens Weiguny ,  Dany Vanden Hautte ,  Thierry Lurquin

    IPC分类号： C07D307/36

    CPC分类号： B01D3/14 ,  B01D3/141 ,  C07C51/573 ,  C07C57/145

    摘要： What is described is a process for obtaining maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent which has been obtained by gas phase oxidation of a hydrocarbon and at least partial absorption of the oxidation products into the absorbent, by i) introducing the solution into the side of a feed column with a rectifying section disposed above the feed point and a stripping section disposed below the feed point, ii) providing an upper combining column which communicates with the upper end of the rectifying section and a lower combining column which communicates with the lower end of the stripping section, iii) providing a draw column which communicates with the upper combining column and the lower combining column, iv) drawing maleic anhydride off as a side draw from the draw column, and drawing off compounds having a lower boiling point than maleic anhydride at the top of the upper combining column and the high-boiling absorbent at the bottom of the lower combining column. The maleic anhydride obtained as a side draw has a low content of acrylic acid and acetic acid.

    摘要翻译： 所描述的是通过蒸馏从马来酸酐在高沸点吸收剂中的溶液获得马来酸酐的方法，其通过烃的气相氧化和至少部分吸收氧化产物进入吸收剂中获得， 将溶液引入进料塔的侧面，其中设置在进料点上方的精馏部分和设置在进料点下方的汽提部分，ii）提供与精馏部分的上端连通的上部混合塔和下部 组合柱与汽提部分的下端连通，iii）提供与上部混合塔和下部混合塔连通的牵引柱，iv）将拉伸马来酸酐作为拉伸塔的牵引拉出，拉出 在上部混合塔的顶部具有比马来酸酐低的沸点的化合物和在底部o的高沸点吸收剂 f下组合列。 作为侧馏分获得的马来酸酐具有低含量的丙烯酸和乙酸。