会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • PRODUCTION METHOD OF METHYL METHACRYLATE
    • 甲基丙烯酸甲酯的生产方法
    • US20090209782A1
    • 2009-08-20
    • US12294068
    • 2007-03-28
    • Masahiko MizunoTateo SeoTetsuya Suzuta
    • Masahiko MizunoTateo SeoTetsuya Suzuta
    • C07C69/54
    • C07C67/38C07C69/54
    • A method of producing methyl methacrylate comprising the following steps: Thermal decomposition step: a hydrocarbon having 3 or more carbon atoms is thermally decomposed to obtain a decomposed gas having a total content of propyne and propadiene of 2 wt % or more, Separation step: mixed liquid rich in propyne and propadiene is separated from the decomposed gas obtained in the thermal decomposition step, Propyne purification step: the mixed liquid rich in propyne and propadiene obtained in the separation step is subjected to extractive distillation, for separation into purified propyne, and crude propadiene containing propadiene as the main component, Isomerization step: the crude propadiene obtained in the propyne purification step is isomerized in the presence of an isomerization catalyst, to obtain crude propyne containing propyne as the main component, and Carbonylation step: the purified propyne obtained in the propyne purification step is reacted with carbon monoxide and methanol in the presence of a group VIII metal catalyst system, to produce methyl methacrylate.
    • 一种生产甲基丙烯酸甲酯的方法,包括以下步骤:热分解步骤:将具有3个或更多碳原子的烃热分解,得到丙炔和丙二烯的总含量为2重量%以上的分解气体,分离步骤:混合 丙烯和丙二烯的液体与热分解步骤中分解的气体分离,丙炔纯化步骤:将分离步骤中得到的富含丙炔和丙二烯的混合液进行萃取蒸馏,分离成纯化丙炔, 以丙二烯为主要成分的丙二烯异构化步骤:在丙炔纯化步骤中得到的粗丙二烯在异构化催化剂存在下异构化,得到含有丙炔的粗丙炔作为主要成分,羰基化步骤:将纯化的丙炔 丙炔纯化步骤与一氧化碳和甲醇反应 在VIII族金属催化剂体系的存在下,生产甲基丙烯酸甲酯。
    • 10. 发明授权
    • Process for producing oxirane compound
    • 环氧乙烷化合物的制备方法
    • US06646140B2
    • 2003-11-11
    • US10220503
    • 2002-12-04
    • Noriaki OkuTateo Seo
    • Noriaki OkuTateo Seo
    • C07D30119
    • C07D301/19Y02P20/52
    • A process for producing an oxirane compound from ethylbenzene hydroperoxide and an olefin in the presence of an immobilized catalyst bed, wherein the process satisfies the following conditions (1) to (4): (1) the catalyst bed is divided into n catalyst beds and the catalyst beds are used in series, wherein n is an integer of 2 or more, (2) fresh ethylbenzene hydroperoxide is divided into portions, which are supplied to respective inlets of the catalyst beds, (3) fresh olefin is supplied to the inlet of the first catalyst bed, and (4) the reaction mixture discharged from each outlet of respective catalyst beds excluding the final catalyst bed is supplied to the inlet of the subsequent catalyst bed.
    • 一种在固定化催化剂床存在下由乙苯氢过氧化物和烯烃生产环氧乙烷化合物的方法,其中该方法满足以下条件(1)至(4):(1)催化剂床分为n个催化剂床和 催化剂床串联使用,其中n为2以上的整数,(2)新鲜乙苯氢过氧化物分为部分供给到各催化剂床的入口,(3)将新鲜烯烃供给到入口 的第一催化剂床,和(4)从除了最终催化剂床之外的各个催化剂床的每个出口排出的反应混合物被供应到随后的催化剂床的入口。