利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

51 条记录 (耗时 0.021 秒)

    Process for the production of acrolein
    1.
    发明授权
    Process for the production of acrolein 失效
    丙烯醛生产工艺

    公开(公告)号：US5387720A

    公开(公告)日：1995-02-07

    申请号：US151390

    申请日：1993-11-12

    申请人： Armin Neher ,  Thomas Haas ,  Dietrich Arntz ,  Herbert Klenk ,  Walter Girke

    发明人： Armin Neher ,  Thomas Haas ,  Dietrich Arntz ,  Herbert Klenk ,  Walter Girke

    IPC分类号： C07B61/00 ,  C07C45/52 ,  C07C47/22

    CPC分类号： C07C45/52

    摘要： A process for the production of acrolein by dehydration of glycerol in the liquid phase or in the gaseous phase, in each case on acidic solid catalysts, is described. Compared with previously known processes, the space-time yield and catalyst service life may be surprisingly increased with higher selectivity by treating a glycerol-water mixture with a glycerol content of 10 to 40 wt. % at 180.degree. to 340.degree. C. (liquid phase) or at 250.degree. to 340.degree. C. (gaseous phase) on a solid catalyst with an H.sub.o value (Hammett acidity function) of less than +2, preferably less than -3.

    摘要翻译： 描述了通过在液相或气相中，在各种情况下在酸性固体催化剂上脱水甘油来生产丙烯醛的方法。 与先前已知的方法相比，通过用甘油含量为10-40重量％的甘油 - 水混合物处理，通过更高的选择性可以惊人地增加时空产率和催化剂使用寿命。 在180℃至340℃（液相）下或在250℃至340℃（气相）下，在Ho值（哈米特酸度函数）小于+2，优选小于-3的固体催化剂上 。

    Process for the simultaneous production of 1,2- and 1,3-propanediol
    2.
    发明授权
    Process for the simultaneous production of 1,2- and 1,3-propanediol 失效
    同时生产1,2-和1,3-丙二醇的方法

    公开(公告)号：US5426249A

    公开(公告)日：1995-06-20

    申请号：US151389

    申请日：1993-11-12

    申请人： Thomas Haas ,  Armin Neher ,  Dietrich Arntz ,  Herbert Klenk ,  Walter Girke

    发明人： Thomas Haas ,  Armin Neher ,  Dietrich Arntz ,  Herbert Klenk ,  Walter Girke

    IPC分类号： C07C31/20 ,  C07C29/136 ,  C07C29/141 ,  C07C29/145 ,  C07C45/52 ,  C07C45/64 ,  C07C47/22 ,  C07C49/17

    CPC分类号： C07C29/141 ,  C07C29/145 ,  C07C45/52 ,  C07C45/64 ,  Y02P20/52

    摘要： A process is described for the simultaneous production of 1,2- and 1,3-propanediol from glycerol. The process involves the reaction stages (a) dehydration of glycerol by feeding a gaseous glycerol-water mixture with 10 to 40 wt % glycerol at 250.degree. to 340.degree. C. over a solid catalyst with an H.sub.0 value (Hammett acidity function) of less than 2, preferably between -3 and -8.2, (b) hydration of the acrolein contained in the reaction mixture of stage (a), and (c) catalytic hydrogenation of the reaction mixture, containing 3-hydroxypropionaldehyde and hydroxyacetone, of stage (b). Two valuable products, namely 1,2- and 1,3-propanediol, can be obtained simultaneously and in high total yield from glycerol in a simple process.

    摘要翻译： 描述了从甘油同时生产1,2-和1,3-丙二醇的方法。 该方法包括反应阶段（a）通过在250℃至340℃下通过在H 2值（哈米特酸度函数）较小的固体催化剂上加入含有10至40重量％甘油的气态甘油 - 水混合物来脱水甘油 （b）使步骤（a）的反应混合物中所含的丙烯醛水合，（c）含有3-羟基丙醛和羟基丙酮的反应混合物的催化氢化 b）。 两个有价值的产物，即1,2-和1,3-丙二醇，可以在一个简单的过程中同时获得，并以高的总收率由甘油获得。

    Process for the preparation of 1,3-propanediol by the hydrogenation of hydroxypropionaldehyde
    5.
    发明授权
    Process for the preparation of 1,3-propanediol by the hydrogenation of hydroxypropionaldehyde 失效
    通过羟基丙醛氢化制备1,3-丙二醇的方法

    公开(公告)号：US5364984A

    公开(公告)日：1994-11-15

    申请号：US948718

    申请日：1992-09-24

    申请人： Dietrich Arntz ,  Thomas Haas ,  Adolf Schafer-Sindlinger

    发明人： Dietrich Arntz ,  Thomas Haas ,  Adolf Schafer-Sindlinger

    IPC分类号： B01J23/42 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20

    CPC分类号： C07C29/141

    摘要： Disclosed is a process for the preparation of 1,3-propanediol by the hydrogenation of hydroxypropionaldehyde (HPA) in aqueous solution on a formed carrier catalyst in a solid bed, the concentration of HPA in the solution being from 5 to 100% by weight and hydrogenation being carried out at temperatures of from 30.degree. to 180.degree. C. and hydrogen pressures of from 5 to 300 bar and at a pH of from 2.5 to 6.5. The carrier catalyst is formed principally of titanium oxide on which platinum is applied in a finely divided form in a quantity of from 0.1 to 5.0% by weight, based on the carrier.

    摘要翻译： 公开了通过在固体床中形成的载体催化剂上的羟基丙醛（HPA）在水溶液中氢化制备1,3-丙二醇的方法，溶液中HPA的浓度为5至100重量％，以及 氢化在30至180℃的温度和5至300巴的氢气压力和2.5至6.5的pH下进行。 载体催化剂主要由氧化钛形成，其上以基于载体的0.1至5.0重量％的量以细碎形式施加铂。

    Process for the production of 1,3-propanediol
    6.
    发明授权
    Process for the production of 1,3-propanediol 失效
    1,3-丙二醇生产工艺

    公开(公告)号：US5334778A

    公开(公告)日：1994-08-02

    申请号：US63317

    申请日：1993-05-19

    申请人： Thomas Haas ,  Norbert Wiegand ,  Dietrich Arntz

    发明人： Thomas Haas ,  Norbert Wiegand ,  Dietrich Arntz

    IPC分类号： B01J23/42 ,  B01J23/46 ,  B01J23/755 ,  B01J25/02 ,  C07B61/00 ,  C07C29/14 ,  C07C29/141 ,  C07C31/20

    CPC分类号： C07C29/141

    摘要： 1,3-Propanediol produced in a known manner by catalytic hydrogenation of 3-hydroxypropionaldehyde (HPA) obtainable from acrolein has a high residual carbonyl content and leads to problems in the production of poly(1,3-propylene glycol terephthalate). Disclosed is a process for producing 1,3-propanediol having a residual carbonyl content, expressed as propionaldehyde, below 500 ppm and generally below 100 ppm produced in the presence of a fixed-bed or suspension hydrogenation catalyst under an H.sub.2 pressure of 5 to 300 bar providing the hydrogenation is carried out at 30.degree. to 80.degree. C. to an HPA conversion of 50 to 95% and is then continued at 100.degree. to 180.degree. C. to an HPA conversion of substantially 100%.

    摘要翻译： 通过丙烯醛获得的3-羟基丙醛（HPA）的催化氢化以已知方式制备的1,3-丙二醇具有高的残留羰基含量，并且导致聚（1,3-丙二醇对苯二甲酸酯）的生产中存在问题。 公开了一种在固定床或悬浮氢化催化剂的存在下，在氢气压力为5至300℃下生产的具有残留羰基含量（表示为丙醛）低于500ppm且通常低于100ppm的1,3-丙二醇的方法 提供氢化的条杆在30℃至80℃下进行至50至95％的HPA转化率，然后在100至180℃持续至基本上100％的HPA转化率。

    Process for the production of malonic acid or a salt thereof
    8.
    发明授权
    Process for the production of malonic acid or a salt thereof 失效
    用于生产丙二酸或其盐的方法

    公开(公告)号：US5817870A

    公开(公告)日：1998-10-06

    申请号：US897139

    申请日：1997-07-21

    申请人： Thomas Haas ,  Martin Meier ,  Christoph Brossmer ,  Dietrich Arntz ,  Andreas Freund

    发明人： Thomas Haas ,  Martin Meier ,  Christoph Brossmer ,  Dietrich Arntz ,  Andreas Freund

    IPC分类号： C07C51/235 ,  C07C55/08

    CPC分类号： C07C51/235

    摘要： Malonic acid or a salt of the same is obtained at high yield according to the invention through the catalytic oxidation with oxygen or an O.sub.2 -containing gas of 3-hydroxy propionaldehyde or 3-hydroxy propionic acid in the aqueous phase. The conversion takes place in the presence of at least 10 percent by weight, relative to the C.sub.3 building block used, of a precious metal from the platinum group. Pd and Pt supported catalysts are preferred.

    摘要翻译： 通过在水相中用氧或含3-羟基丙醛或3-羟基丙酸的含氧气体进行催化氧化，可以高产率获得丙二酸或其盐。 相对于所使用的C3结构单元，存在来自铂族的贵金属的至少10重量％的存在下进行转化。 Pd和Pt负载的催化剂是优选的。

    Process for the production of 3-hydroxyalkanals
    9.
    发明授权
    Process for the production of 3-hydroxyalkanals 失效
    生产3-羟基卡那烯的方法

    公开(公告)号：US5276201A

    公开(公告)日：1994-01-04

    申请号：US981324

    申请日：1992-11-24

    申请人： Thomas Haas ,  Dietrich Arntz ,  Reinhold Brand

    发明人： Thomas Haas ,  Dietrich Arntz ,  Reinhold Brand

    IPC分类号： B01J27/16 ,  B01J21/06 ,  B01J27/14 ,  C07B61/00 ,  C07C45/64 ,  C07C47/19 ,  C07C45/61

    CPC分类号： B01J21/063 ,  B01J27/14 ,  C07C45/64

    摘要： A process for the production of 3-hydroxyalkanals, more particularly 3-hydroxypropionaldehyde, by hydration of the basic 2-alkenals, more particularly acrolein, in the presence of a solid catalyst containing acid functional groups. The catalysts are based on an inorganic support containing basic activity centers (which are at least partly occupied by a polybasic acid, of which the first pK.sub.s value is between 0 and 3, in a form in which it cannot be removed by water) enables the hydration to be carried out with high selectivity. At the same time, the disadvantages of known organic fixed-bed catalysts are avoided. Preferred catalyst are based on pyrogenic titanium dioxide with phosphoric acid fixed thereon.

    摘要翻译： 在含有酸官能团的固体催化剂存在下，通过碱性2-烯烃，更特别是丙烯醛的水合，制备3-羟基卡那烯，更特别是3-羟基丙醛的方法。 催化剂基于含有碱性活性中心的无机载体（其至少部分地被多元酸占据，其中第一pK值在0和3之间，其不能被水除去的形式）使得能够 水合以高选择性进行。 同时，避免了已知有机固定床催化剂的缺点。 优选的催化剂基于固定有磷酸的热解二氧化钛。

    Process for the production of 3-aminoethyl-3,5,5-trimethylcyclohexyl amine
    10.
    发明授权
    Process for the production of 3-aminoethyl-3,5,5-trimethylcyclohexyl amine 失效
    3-氨基乙基-3,5,5-三甲基环己胺的制备方法

    公开(公告)号：US5679860A

    公开(公告)日：1997-10-21

    申请号：US739044

    申请日：1996-10-28

    申请人： Thomas Haas ,  Roland Burmeister ,  Dietrich Arntz ,  Karl-Ludwig Weber ,  Monika Berweiler

    发明人： Thomas Haas ,  Roland Burmeister ,  Dietrich Arntz ,  Karl-Ludwig Weber ,  Monika Berweiler

    IPC分类号： B01J21/06 ,  C07B61/00 ,  C07C209/48 ,  C07C209/52 ,  C07C211/36 ,  C07C209/32

    CPC分类号： C07C211/36 ,  C07C209/48 ,  C07C209/52 ,  C07C2101/14

    摘要： A process for producing 3-aminomethyl-3,5,5-trimethylcyclohexyl amine (isophorone diamine) from isophorone nitrile. Isophorone nitrile is iminated in a first stage and then the reaction mixture is subjected to aminating hydrogenation in a second stage in the presence of a fixed bed hydrogenation catalyst based on Raney cobalt. The fixed bed hydrogenation catalyst is produced in a special manner by mixing a powdery Co--containing Raney alloy with powdery cobalt, sintering the powdery mixture to shaped moldings and then activating by leaching with alkali hydroxide solution. The yield and/or space-time yield in isophorone diamine production can be increased.

    摘要翻译： 由异佛尔酮腈生产3-氨基甲基-3,5,5-三甲基环己胺（异佛尔酮二胺）的方法。 在第一阶段中将异佛尔酮腈进行酰化，然后在基于阮内钴的固定床氢化催化剂的存在下，将反应混合物在第二阶段进行氨化氢化。 固定床加氢催化剂以特殊的方式通过将粉末状含钴阮内合金与粉末状钴混合，将粉末状混合物烧结成型成形体，然后通过用碱金属氢氧化物溶液浸出而活化。 可以增加异佛尔酮二胺生产中的产率和/或时空产率。