PROCESS FOR PREPARING TERTIARY ALKYL ESTERS OF (METH) ACRYLIC ACID HAVING AT LEAST 4 CARBON ATOMS IN THE ALKYL RADICAL
    1.
    发明申请
    PROCESS FOR PREPARING TERTIARY ALKYL ESTERS OF (METH) ACRYLIC ACID HAVING AT LEAST 4 CARBON ATOMS IN THE ALKYL RADICAL 有权
    用于制备具有至少四个碳原子的(甲基)丙烯酸的仲胺酸酯在碱性辐射中的方法

    公开(公告)号:US20090023947A1

    公开(公告)日:2009-01-22

    申请号:US12168342

    申请日:2008-07-07

    IPC分类号: C07C69/54

    摘要: A process for preparing tertiary alkyl esters of (meth)acrylic acid having at least 4 carbon atoms in the alkyl radical, comprising the steps of: (1) reacting (meth)acrylic acid with at least one olefin of the general formula I: in which R1 and R2 are an alkyl radical, and R3 is a hydrogen atom, an alkyl radical, a cycloalkyl radical, an aryl radical, an alkylcycloalkyl radical, an alkylaryl radical, a cycloalkylaryl radical, or an alkylcycloalkylaryl radical; in homogeneous phase in the presence of an acidic catalyst in a reactor, (2) discharging the resulting reaction mixture (1) from the reactor, (3) separating the discharged reaction mixture (2) into a mixture (3.1) which comprises the catalyst and a mixture (3.2) which comprises the tertiary alkyl ester of (meth)acrylic acid having at least 4 carbon atoms in the alkyl radical, and (4) removing the tertiary alkyl ester of (meth)acrylic acid having at least 4 carbon atoms in the alkyl radical from the mixture (3.2), wherein, (5) in process step (4), at least one compound S which comprises at least one N-oxyl group is added as a stabilizer.

    摘要翻译: 一种制备烷基中具有至少4个碳原子的(甲基)丙烯酸叔烷基酯的方法,包括以下步骤:(1)使(甲基)丙烯酸与至少一种通式Ⅰ的烯烃反应: 其中R1和R2是烷基,R3是氢原子,烷基,环烷基,芳基,烷基环烷基,烷基芳基,环烷基芳基或烷基环烷基芳基; 在反应器中存在酸性催化剂的同时,(2)将反应混合物(1)从反应器中排出,(3)将排出的反应混合物(2)分离成包含催化剂的混合物(3.1) 和包含烷基中具有至少4个碳原子的(甲基)丙烯酸叔烷基酯的混合物(3.2),和(4)除去具有至少4个碳原子的(甲基)丙烯酸的叔烷基酯 在来自混合物(3.2)的烷基中,其中(5)在方法步骤(4)中,加入至少一种包含至少一个N-氧基的化合物S作为稳定剂。

    Preparation of amines
    3.
    发明授权
    Preparation of amines 失效
    胺的制备

    公开(公告)号:US6057442A

    公开(公告)日:2000-05-02

    申请号:US159089

    申请日:1998-09-23

    摘要: Amines are prepared from primary or secondary alcohols and nitrogen compounds selected from the group of ammonia, primary and secondary amines, at from 80 to 250.degree. C. under pressures from 0.1 to 40 MPa with hydrogen in the presence of a catalyst comprising zirconium, copper and nickel, wherein the catalytically active composition comprises20-85% by weight of oxygen-containing zirconium compounds, calculated as ZrO.sub.2,1-30% by weight of oxygen-containing copper compounds, calculated as CuO,14-70% by weight of oxygen-containing nickel compounds, calculated as NiO, where the molar ratio of nickel to copper is greater than 1,0-10% by weight of oxygen-containing aluminum and/or manganese compounds, calculated as Al.sub.2 O.sub.3 and/or MnO.sub.2,and no oxygen-containing cobalt or molybdenum compounds.

    摘要翻译: 在含有锆,铜和铜的催化剂存在下,在氢气压力为0.1至40MPa的压力下,从伯,仲醇和选自氨,伯胺和仲胺的氮化合物制备胺。 和镍,其中催化活性组合物包含20-85重量%的以ZrO 2计算的含氧锆化合物,1-30重量%的以CuO计的含氧铜化合物,14-70重量% 以NiO计算的含氧镍化合物,其中镍与铜的摩尔比大于1-10重量%,以Al 2 O 3和/或MnO 2计算的含氧铝和/或锰化合物为0-10重量% 含氧钴或钼化合物。

    Preparation of supported catalysts for polymerization
    8.
    发明申请
    Preparation of supported catalysts for polymerization 审中-公开
    负载聚合催化剂的制备

    公开(公告)号:US20070179051A1

    公开(公告)日:2007-08-02

    申请号:US10588391

    申请日:2005-02-02

    IPC分类号: C08F2/00 B01J23/00

    摘要: The invention relates to a process for preparing a supported catalyst, in particular for the polymerization and/or copolymerization of olefins, which comprises: a) preparing a hydrogel; b) milling the hydrogel to give a finely particulate hydrogel; c) producing a slurry based on the finely particulate hydrogel; d) drying the slurry comprising the finely particulate hydrogel to give the support for catalysts; e) producing the supported catalyst by applying at least one transition metal and/or at least one transition metal compound to the support for catalysts and, if appropriate, activating the applied metal and/or compound, wherein a finely particulate hydrogel in which at least 5% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦3 μm; and/or at least 40% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦12 μm, and/or at least 75% by volume of the particles, based on the total volume of the particles, have a particle size in the range from >0 μm to ≦35 μm, is produced in step b) and a support which can be prepared as set forth in steps a) to d) is used to produce catalysts in step e).

    摘要翻译: 本发明涉及一种制备负载型催化剂的方法,特别是用于烯烃的聚合和/或共聚合,其包括:a)制备水凝胶; b)研磨水凝胶以得到细颗粒水凝胶; c)基于细颗粒水凝胶生产浆料; d)干燥包含细颗粒状水凝胶的浆料,得到催化剂载体; e)通过将至少一种过渡金属和/或至少一种过渡金属化合物施加到催化剂的载体上,并且如果合适地活化所施加的金属和/或化合物,制备负载型催化剂,其中至少 基于颗粒的总体积,5体积%的颗粒具有在>0μm至<3μm的范围内的粒度; 和/或至少40体积%的颗粒,基于颗粒的总体积,其粒度范围为>0μm至≤12μm,和/或至少75体积% 基于颗粒的总体积的颗粒具有在>0μm至<=35μm的范围内的粒度,在步骤b)中制备,并且可以如步骤a)至d所述制备的载体 )用于在步骤e)中制备催化剂。

    Preparation of alcohols
    10.
    发明授权
    Preparation of alcohols 失效
    醇的制备

    公开(公告)号:US6140545A

    公开(公告)日:2000-10-31

    申请号:US251462

    申请日:1999-02-17

    IPC分类号: C07C29/149 C07C37/08

    CPC分类号: C07C29/149 C07C2101/14

    摘要: In a process for preparing alcohols by gas phase hydrogenation of carboxylic acids or esters thereof at elevated temperature and elevated pressure in the presence of catalysts consisting of or comprising, as hydrogenating components, oxides of main group VI and/or subgroup IV, the hydrogenation is carried outa) at from 250.degree. C. to 400.degree. C. and from 5 bar to 100 bar in the presence ofb) primary or secondary alcohols, the molar hydrogen/alcohol ratio being at most 800.

    摘要翻译: 在通过在升高的温度和升高的压力下,在由主要VI族和/或第IV族的氧化物组成或包含氢化组分的催化剂存在下,在羧酸或其酯的气相氢化制备醇的方法中,氢化是 在b)伯醇或仲醇的存在下,在250℃至400℃和5巴至100巴下进行a),氢/醇摩尔比为至多800。