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341 条记录 (耗时 0.034 秒)

    Method for producing ethylene glycol from oxalate through the fluidized bed catalytic reaction
    71.
    发明授权
    Method for producing ethylene glycol from oxalate through the fluidized bed catalytic reaction 有权
    通过流化床催化反应从草酸生产乙二醇的方法

    公开(公告)号：US09102583B2

    公开(公告)日：2015-08-11

    申请号：US14000876

    申请日：2012-02-24

    申请人： Weimin Yang ,  Juntao Liu ,  Wanmin Wang ,  Jun Kuai

    发明人： Weimin Yang ,  Juntao Liu ,  Wanmin Wang ,  Jun Kuai

    IPC分类号： C07C27/04 ,  C07C29/149 ,  B01J23/83 ,  B01J23/84 ,  B01J23/843 ,  B01J23/888 ,  B01J29/48

    CPC分类号： C07C29/149 ,  B01J23/83 ,  B01J23/84 ,  B01J23/8437 ,  B01J23/888 ,  B01J29/48 ,  Y02P20/52 ,  C07C31/202

    摘要： A process for producing ethylene glycol includes contacting an oxalate with a fluidized bed catalyst under the following conditions: a reaction temperature of from about 170 to about 270° C., a weight space velocity of oxalate of from about 0.2 to about 7 hours−1, a hydrogen/ester molar ratio of about 20˜200:1, a reaction pressure of from about 1.5 to about 10 MPa, and a reaction temperature difference T of from about 1 to about 15° C. The fluidized bed catalyst includes: a) from about 5 to about 80 parts by weight of copper and the oxide thereof, b) from about 10 to about 90 parts by weight of at least one carrier selected from silica, molecular sieve or alumina, c) from about 0.01 to about 30 parts by weight of bismuth and tungsten metallic elements or the oxides thereof, or cerium and niobium metallic elements or the oxides thereof.

    摘要翻译： 制备乙二醇的方法包括在以下条件下使草酸盐与流化床催化剂接触：反应温度为约170至约270℃，草酸的重量空间速度为约0.2至约7小时-1 氢/酯摩尔比为约20〜200:1，反应压力为约1.5〜约10MPa，反应温度差T为约1〜约15℃。流化床催化剂包括： ）约5至约80重量份的铜及其氧化物，b）约10至约90重量份的至少一种选自二氧化硅，分子筛或氧化铝的载体，c）约0.01至约30 铋和钨金属元素或其氧化物或铈和铌金属元素或其氧化物的重量份。

    Single phase ester feed for hydrogenolysis
    75.
    发明授权
    Single phase ester feed for hydrogenolysis 有权
    单相酯进料用于氢解

    公开(公告)号：US08975451B2

    公开(公告)日：2015-03-10

    申请号：US13833994

    申请日：2013-03-15

    申请人： Celanese International Corporation

    发明人： Tatiana H. Sonnenberg ,  Wei Qi ,  R. Jay Warner

    IPC分类号： C07C27/04 ,  C07C29/149

    CPC分类号： C07C29/149 ,  C07C29/80 ,  C07C31/08

    摘要： The process involves esterifying ethanol and acetic acid to produce an esterification product that is in a single phase that is directly reduced, by hydrogenolysis, to produce ethanol. The single phase is not capable of separating. Feeding a single phase feed stream reduces the separation of the esterification product. Hydrogen may be fed to the esterification reactor that operates at a high pressure that is substantially similar to or greater than the hydrogenolysis reactor.

    摘要翻译： 该方法包括酯化乙醇和乙酸以产生在单相中通过氢解直接还原产生乙醇的酯化产物。 单相不能分离。 进料单相进料流减少酯化产物的分离。 氢可以进料到在基本上类似于或大于氢解反应器的高压下操作的酯化反应器。

    Method for preparing polymethylols
    77.
    发明授权
    Method for preparing polymethylols 有权
    多羟甲基纤维素的制备方法

    公开(公告)号：US08884076B2

    公开(公告)日：2014-11-11

    申请号：US13133861

    申请日：2009-12-07

    申请人： Tilman Sirch ,  Michael Steiniger ,  Steffen Maas ,  Stefan Rittinger ,  Stephan Schlitter

    发明人： Tilman Sirch ,  Michael Steiniger ,  Steffen Maas ,  Stefan Rittinger ,  Stephan Schlitter

    IPC分类号： C07C27/04 ,  C08G63/16 ,  C08G18/56 ,  C07C29/80 ,  C07C29/141 ,  C08L67/00 ,  C08L75/04

    CPC分类号： C07C29/141 ,  C07C29/80 ,  C08G18/56 ,  C08G63/16 ,  C08L67/00 ,  C08L75/04 ,  C07C31/245 ,  C07C31/20 ,  C07C31/22

    摘要： The present invention relates to a process for distilling an aqueous polymethylol mixture which comprises a polymethylol of the formula (I) (HOCH2)2—C—R2  (I) in which each R is independently a further methylol group or an alkyl group having 1 to 22 carbon atoms or an aryl or aralkyl group having 6 to 22 carbon atoms, a tertiary amine, water and the adduct of tertiary amine and formic acid (amine formate), which comprises performing the distillation in a distillation column which is connected at the bottom to an evaporator, the bottom temperature being above the evaporation temperature of the monoester of formic acid and polymethylol (polymethylol formate) which forms during distillation. The present invention further relates to a composition comprising polymethylol and 1 to 10 000 ppm by weight of polymethylol formate, and to the use thereof.

    摘要翻译： 本发明涉及一种蒸馏水性多羟甲基混合物的方法，该方法包括式（I）的多羟甲基（HOCH 2）2 -C-R 2（I），其中每个R独立地是另外的羟甲基或具有1 至22个碳原子或具有6至22个碳原子的芳基或芳烷基，叔胺，水和叔胺和甲酸（甲酸胺）的加合物，其包括在蒸馏塔中进行蒸馏，所述蒸馏塔在 底部到蒸发器，底部温度高于在蒸馏期间形成的甲酸和多羟甲基（多羟甲基甲酸酯）的单酯的蒸发温度。 本发明还涉及一种包含多羟甲基和1-10万重量ppm的多羟甲基甲酸酯的组合物及其用途。

    Pressure driven distillation for ethanol production and recovery from hydrogenation process
    78.
    发明授权
    Pressure driven distillation for ethanol production and recovery from hydrogenation process 有权
    压力驱动蒸馏用于乙醇生产和从氢化过程中回收

    公开(公告)号：US08802902B2

    公开(公告)日：2014-08-12

    申请号：US13595400

    申请日：2012-08-27

    申请人： R. Jay Warner ,  David Lee ,  Adam Orosco

    发明人： R. Jay Warner ,  David Lee ,  Adam Orosco

    IPC分类号： C07C27/04

    CPC分类号： C07C29/149 ,  C07C29/80 ,  C07C31/08

    摘要： Recovery of alcohols, in particular ethanol, from a crude ethanol product obtained from the hydrogenation of acetic acid using pressure driven distillation to separate the crude ethanol product. The crude ethanol product may be fed to a distillations column in which a substantial portion of the water is removed with the acetic acid in the residue. A second column is at higher pressure than a first column.

    摘要翻译： 从使用压力驱动蒸馏的乙酸氢化获得的粗乙醇产物中回收醇，特别是乙醇，以分离粗乙醇产物。 粗乙醇产物可以进料到蒸馏塔中，其中大部分水用残余物中的乙酸除去。 第二列的压力高于第一列。

    Ligands and catalyst systems for hydroformylation processes
    79.
    发明授权
    Ligands and catalyst systems for hydroformylation processes 有权
    用于加氢甲酰化过程的配体和催化剂体系

    公开(公告)号：US08791305B2

    公开(公告)日：2014-07-29

    申请号：US14122594

    申请日：2012-05-25

    申请人： Dieter Arlt

    发明人： Dieter Arlt

    IPC分类号： C07C45/00 ,  C07C27/04 ,  B01J31/00 ,  B01J27/185

    CPC分类号： C07C45/505 ,  B01J31/2208 ,  B01J31/2414 ,  C07C43/135 ,  C07C43/1788 ,  C07C45/50 ,  C07C2531/24 ,  C07C2601/04 ,  C07F9/5027 ,  C07F15/0073 ,  C07F15/008 ,  C07C47/19

    摘要： The present invention relates to ligands and catalyst systems for the hydroformylation of short and long chain olefins, preferably for the hydroformylation of ally alcohol producing 4-hydroxybutyraldehyde. The ligands disclosed herein are all-trans phosphinomethyl-cyclobutane ligands, such as, for example, all-trans-1,2,3,4-tetra[bis-(3,5-xylyl)phosphinomethyl]-cyclobutane. The catalyst systems comprise these all-trans phosphinomethyl-cyclobutane ligands in combination with an organometallic rhodium complex such as, e.g., (acctylacetonato)-dicarbonyl-rhodium (I). The ligands and catalyst systems of the present invention may be employed in the hydroformylation of olefins, in particular in the hydroformylation of allylalcohol, and provide improved selectivity and high reaction yields. wherein R1 is alkyl, preferably methyl, ethyl or propyl, R2 is H or an alkoxy group, R3 and R4, independently of one another, CH2OR1, CH2O-aralkyl, CH2OH,CH2—[P(3,5-R1,R1-4-R2-phenyl)2] or CH2O—(CH2—CH2—O)m—H (with m being an integer between 1 and 1.000).

    摘要翻译： 本发明涉及用于短链和长链烯烃加氢甲酰基化的配体和催化剂体系，优选用于产生4-羟基丁醛的烯丙醇的加氢甲酰化。 本文公开的配体是全反式膦酰基甲基 - 环丁烷配体，例如全反式-1,2,3,4-四[​​双（3,5-二甲苯基）膦酰基甲基] - 环丁烷。 催化剂体系包括这些全反式膦酰基甲基 - 环丁烷配体与有机金属铑络合物，例如（丙酰丙酮） - 二羰基 - 铑（I）的组合。 本发明的配体和催化剂体系可以用于烯烃的加氢甲酰化，特别是在烯丙醇的加氢甲酰化中，提供改进的选择性和高的反应产率。 其中R1是烷基，优选甲基，乙基或丙基，R2是H或烷氧基，R3和R4彼此独立地是CH2OR1，CH2O-芳烷基，CH2OH，CH2- [P（3,5-R1，R1- 4-R 2 - 苯基）2]或CH 2 O-（CH 2 -CH 2 -O）m -H（m为1至1.000之间的整数）。