利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

97 条记录 (耗时 0.013 秒)

    Process for the production of derivatives of saturated carboxylic acids
    11.
    发明授权
    Process for the production of derivatives of saturated carboxylic acids 有权
    制备饱和羧酸衍生物的方法

    公开(公告)号：US07812186B2

    公开(公告)日：2010-10-12

    申请号：US12067343

    申请日：2006-09-21

    申请人： Catia Bastioli ,  Tiziana Milizia ,  Giampietro Borsotti

    发明人： Catia Bastioli ,  Tiziana Milizia ,  Giampietro Borsotti

    IPC分类号： C07C51/16

    CPC分类号： C07C51/245 ,  C07C67/31 ,  C07C67/333 ,  Y02E50/13 ,  C07C53/126 ,  C07C69/675 ,  C07C69/48

    摘要： A process for the production of carboxylic acids and their derivatives comprising the steps of: (c) reacting a derivative of an unsaturated fatty acid with an oxidizing compound in the presence of a catalyst capable of catalysing the reaction of oxidation of the double olefinic bond of the derivative of the unsaturated fatty acid so as to obtain as intermediate product of reaction a vicinal diol; and (d) reacting said intermediate compound with oxygen, or a compound containing oxygen, in the presence of a catalyst capable of catalysing the reaction of oxidation of the hydroxyl groups of the vicinal diol to carboxylic groups, characterized in that both of the steps (a) and (b) are carried out in the absence of added organic solvent and in that the water/diol ratio in the reaction of step (b) is less than 1:1.

    摘要翻译： 一种制备羧酸及其衍生物的方法，包括以下步骤：（c）使不饱和脂肪酸的衍生物与氧化性化合物在催化剂存在下反应，所述催化剂能够催化双烯键的氧化反应 不饱和脂肪酸的衍生物，以获得邻位二醇的中间产物的反应; 和（d）在催化剂存在下使所述中间体化合物与氧气或含氧化合物反应，所述催化剂能够催化邻位二醇的羟基氧化成羧基的反应，其特征在于两个步骤 a）和（b）在没有添加的有机溶剂的情况下进行，并且步骤（b）的反应中的水/二醇比例小于1:1。

    COMPOSITIONS AND PROCESSES FOR THE SELECTIVE CATALYTIC OXIDATION OF ALCOHOLS
    12.
    发明申请
    COMPOSITIONS AND PROCESSES FOR THE SELECTIVE CATALYTIC OXIDATION OF ALCOHOLS 审中-公开
    醇的选择性催化氧化的组合物和方法

    公开(公告)号：US20100152435A1

    公开(公告)日：2010-06-17

    申请号：US12530927

    申请日：2008-03-14

    申请人： Jonathan A. Stapley ,  Setrak K. Tanielyan ,  Robert L. Augustine ,  Norman M. Marin Astorga ,  Gabriela D. Alvez Manoli

    发明人： Jonathan A. Stapley ,  Setrak K. Tanielyan ,  Robert L. Augustine ,  Norman M. Marin Astorga ,  Gabriela D. Alvez Manoli

    IPC分类号： C07H1/00 ,  C08B37/00 ,  C07C61/08

    CPC分类号： C07H7/033 ,  C07B41/08 ,  C07C51/235 ,  C07C51/245

    摘要： Processes for oxidation of primary alcohols or aldehydes into the corresponding carboxylic acids are provided herein, including processes for the aerobic catalytic oxidation of a hydroxyl moiety pendant to a cyclic carbohydrate to a carboxylic acid in a manner that preserves the cyclic carbohydrate structure. The oxidation processes may be performed in the absence of a transition metal catalyst, halogenated solvent and a hypochlorite reagent. The processes and compositions with and without a bromide source are provided. A liquid reaction media comprising a carboxylic acid and a catalyst composition may be combined with the reactant alcohol substrate to form a reaction media which can be pressurized at constant volume with an oxygen-containing gas under conditions of temperature and constant pressure within a reaction vessel to selectively oxidize the reactant substrate to form a carboxylic acid product. Preferably, the reactant alcohol substrate is a cyclic carbohydrate having a pendant primary or secondary alcohol that is converted to a carboxylic acid by the selective oxidation process, such as the conversion of an alkyl-glucopyranoside to a corresponding alkyl-glucuronic acid.

    摘要翻译： 本文提供了将伯醇或醛氧化成相应的羧酸的方法，包括以保留环状碳水化合物结构的方式将侧链环状碳水化合物的羟基部分氧化成羧酸的方法。 氧化过程可以在不存在过渡金属催化剂，卤化溶剂和次氯酸盐试剂的情况下进行。 提供了具有和不具有溴源的方法和组合物。 包含羧酸和催化剂组合物的液体反应介质可与反应物醇底物组合以形成反应介质，该反应介质可在反应容器内的温度和恒定压力的条件下用含氧气体在恒定体积下加压至 选择性地氧化反应物底物以形成羧酸产物。 优选地，反应物醇底物是具有侧链伯或仲醇的环状碳水化合物，其通过选择性氧化方法转化为羧酸，例如将烷基 - 吡喃葡萄糖苷转化成相应的烷基 - 葡萄糖醛酸。

    PROCESS FOR PRODUCTION OF ACRYLIC ACID
    20.
    发明申请
    PROCESS FOR PRODUCTION OF ACRYLIC ACID 有权
    丙烯酸生产工艺

    公开(公告)号：US20170036982A1

    公开(公告)日：2017-02-09

    申请号：US15227392

    申请日：2016-08-03

    申请人： BASF SE

    发明人： Tobias KORN ,  Till BLUM ,  Travis CARLINE ,  Christopher FUCHS ,  Darryl WELCH ,  Peter ZUROWSKI ,  Volker SCHLIEPHAKE ,  Steffen RISSEL ,  Thorsten FRIESE ,  Ulrich JAEGER ,  Sylke HAREMZA

    IPC分类号： C07C45/32 ,  C07C45/82 ,  C07C45/79

    CPC分类号： C07C45/32 ,  C07C45/33 ,  C07C45/35 ,  C07C45/38 ,  C07C45/39 ,  C07C45/783 ,  C07C51/21 ,  C07C51/235 ,  C07C51/245 ,  C07C51/252 ,  C07C51/42 ,  C07C51/43 ,  C07C51/44 ,  C07C51/47 ,  C07C57/04

    摘要： The invention is related to a process for production of acrylic acid comprising the following steps: a) preparation of a product gas mixture by a catalytic gas-phase oxidation of at least one C3 precursor compound to acrylic acid, wherein acrylic acid is formed as a main product of the catalytic gas-phase oxidation and glyoxal is formed as a by-product and the product gas mixture comprises acrylic acid and glyoxal, b) cooling of the product gas mixture, c) contacting the product gas mixture in countercourrent with an absorbent, wherein an absorbate A, comprising the absorbent and absorbed acrylic acid, is formed, d) introducing a feed stream F (2) comprising at least part of the absorbate A into a rectification column comprising a rectifying section and a stripping section, e) enriching the absorbent in the stripping section and enriching acrylic acid in the rectifying section, f) withdrawing a stream C of crude acrylic acid comprising at least 90% by weight of acrylic acid out of the rectifying section as a side stream, wherein step c) is carried out in an absorption column (12) comprising at least two cooling loops, a first cooling loop (14), wherein a high boiler fraction of the product gas mixture is condensed and a second cooling loop (16), wherein a low boiler fraction of the product gas mixture is condensed, wherein a portion of the absorbate A, which comprises the feed stream F (2), is removed from the absorption column (12) at a side take-off (20), the side take-off (20) being located at the first cooling loop (14) or at a height of the absorption column (12) between the first cooling loop (14) and the second cooling loop (16) and wherein a temperature Tc of the absorbate A in the second cooling loop is at least 56° C.

    摘要翻译： 本发明涉及一种生产丙烯酸的方法，包括以下步骤：a）通过至少一种C3前体化合物的催化气相氧化制备产物气体混合物至丙烯酸，其中丙烯酸形成为 作为副产物形成催化气相氧化和乙二醛的主要产物，产物气体混合物包括丙烯酸和乙二醛，b）冷却产物气体混合物，c）将产物气体混合物与吸附剂 ，其中形成包含吸收和吸收的丙烯酸的吸收剂A，d）将包含至少一部分吸收剂A的进料流F（2）引入到包括精馏段和汽提段的蒸馏塔中，e）富集 汽提段中的吸收剂和精馏段中的富集丙烯酸，f）将粗丙烯酸流C包含至少90％（重量）的丙烯酸 其中步骤c）在包括至少两个冷却回路的吸收塔（12）中进行，第一冷却回路（14），其中产物气体混合物的高沸点馏分冷凝，和 第二冷却回路（16），其中产物气体混合物的低沸点馏分冷凝，其中包含进料流F（2）的吸收剂A的一部分在吸收塔（12）的一侧被去除 起落架（20），侧向起飞（20）位于第一冷却回路（14）处或位于第一冷却回路（14）和第二冷却回路（14）的吸收塔（12）的高度处 16），其中第二冷却回路中的吸收剂A的温度（Tc）至少为56℃。