利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

248 条记录 (耗时 0.014 秒)

    Aralkylation of alkylbenzenes
    46.
    发明授权
    Aralkylation of alkylbenzenes 失效
    烷基苯的烷基化

    公开(公告)号：US4144279A

    公开(公告)日：1979-03-13

    申请号：US898328

    申请日：1978-04-20

    申请人： Atsushi Sato ,  Isoo Shimizu ,  Eiichi Matsuzaka

    发明人： Atsushi Sato ,  Isoo Shimizu ,  Eiichi Matsuzaka

    IPC分类号： B01J21/00 ,  C07B61/00 ,  C07C1/00 ,  C07C2/66 ,  C07C2/70 ,  C07C15/16 ,  C07C67/00 ,  C10G57/00 ,  H01B3/20 ,  H01B3/22 ,  C07C3/10

    CPC分类号： C07C2/66 ,  C10G57/005 ,  C07C2521/12

    摘要： The present invention provides a process for aralkylation of alkylbenzenes wherein an alkylbenzene or alkylbenzenes containing in the substituent alkyl group or groups from 1 to 4 carbon atoms in total is aralkylated with at least one styrene selected from the group consisting of styrene, vinyltoluenes and .alpha.-methylstyrene which comprises carrying out the reaction by continuously feeding to a catalyst layer the above-mentioned alkylbenzene or alkylbenzenes and styrene sources in liquid phase at a temperature from 100.degree. C. to 200.degree. C., said catalyst layer being filled with synthetic silica-alumina containing from 20% by weight to 50% by weight alumina that has been calcined at a temperature in the range from 450.degree. C. to 600.degree. C.

    摘要翻译： 本发明提供烷基苯的芳烷基化方法，其中在取代烷基中含有的烷基苯或烷基苯或总共1-4个碳原子的烷基苯与至少一种选自苯乙烯，乙烯基甲苯和α-烯烃的苯乙烯芳烷基化， 甲基苯乙烯，其包括通过在100℃至200℃的温度下以液相连续地向催化剂层供给上述烷基苯或烷基苯和苯乙烯源进行反应，所述催化剂层填充有合成二氧化硅 - 氧化铝，其含有在450℃至600℃的温度下煅烧的20重量％至50重量％的氧化铝。

    Olefin metathesis process and catalyst therefor
    48.
    发明授权
    Olefin metathesis process and catalyst therefor 失效
    烯烃复分解过程及其催化剂

    公开(公告)号：US4060468A

    公开(公告)日：1977-11-29

    申请号：US729315

    申请日：1976-10-04

    申请人： Kenneth F. Castner

    发明人： Kenneth F. Castner

    IPC分类号： B01J37/34 ,  C07C6/04 ,  C07C6/06 ,  B01J1/10 ,  B01J23/16 ,  C07C3/10

    CPC分类号： B01J37/345 ,  C07C6/04 ,  C07C6/06

    摘要： There is disclosed a method for preparing a catalyst useful for olefin metathesis comprising a mixture of a salt of a metal selected from tungsten, molybdenum, rhenium and tantalum, an oxygenated organic compound selected from the group represented by the formula: ##STR1## said mixture being exposed to ultraviolet radiation to give approximately 0.4 kilowatt hours per mole of the metal salt.A process of olefin metathesis utilizing this catalyst is also disclosed.

    摘要翻译： 公开了一种制备用于烯烃复分解的催化剂的方法，其包括选自钨，钼，铼和钽的金属盐的混合物，选自下式所示的基团的氧化有机化合物： >所述混合物暴露于紫外线照射下，每摩尔金属盐约0.4千瓦小时。

    Production of synthetic lubricants from alpha-olefins through a ternary catalytic system
    50.
    发明授权
    Production of synthetic lubricants from alpha-olefins through a ternary catalytic system 失效
    通过三元催化体系从α-烯烃生产合成润滑剂

    公开(公告)号：US3884988A

    公开(公告)日：1975-05-20

    申请号：US33262773

    申请日：1973-02-15

    申请人： SNAM PROGETTI

    发明人： GIROTTI PIERLEONE ,  TESEI RENATO ,  FLORIS TELEMACO

    IPC分类号： C08F110/14 ,  C07C2/08 ,  C07C2/30 ,  C07C6/02 ,  C07C9/14 ,  C08F4/14 ,  C08F10/14 ,  C10M107/10 ,  C10M169/00 ,  C07C3/10

    CPC分类号： C10M3/00 ,  C08F10/14 ,  C10M2205/00

    摘要： Synthetic, high quality lubricating oils are produced through the polymerization of a single alpha-olefin or a mixture of alpha-olefins from ''''wax-cracking'''' having the formula R - CH CH2 wherein R is an alkyl radical containing from 2 to 16 C atoms, by the use, in a dry nitrogen atmosphere, of a catalyst system constituted by a compound of a transition metal selected from groups IV to VIII of the periodic system (e.g., TiCl4) and by two coordinate anionic cocatalysts, one of which is an aluminum compound of inorganic nature devoid of any metal-carbon bond and consisting of a polyiminic linear polymer (e.g., a polyimine alane represented by the formula:

    WHEREIN R is alkyl, aryl or cycloalkyl and n is a whole number from 4 to 25) and the other of which is an aluminum compound of the conventional Ziegler type with a metal-carbon link (e.g., an aluminum alkyl sesquichloride or an aluminum dialkyl monochloride.

    摘要翻译： 合成的高品质润滑油是通过单个α-烯烃或由具有式R-CH = CH 2的“蜡裂解”）的α-烯烃的混合物的聚合制备的，其中R是含有2至16个碳原子的烷基 原子通过在干燥的氮气气氛中使用由周期性系统的IV至VIII族的过渡金属的化合物（例如TiCl 4）构成的催化剂体系以及由两个配位阴离子助催化剂组成的催化剂体系，其中之一是 不含任何金属 - 碳键并由多元线性聚合物（例如，由下式表示的聚亚烷基亚烷基，其中R是烷基，芳基或环烷基并且n是整数4至25）的无机性的铝化合物， 另一种是具有金属 - 碳键的常规齐格勒型铝化合物（例如，烷基倍半氯化铝或一氯化铝二烷基铝。