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    • 21. 发明授权
    • Process for preparing carbonate and diol products
    • 制备碳酸酯和二醇产品的方法
    • US08735608B2
    • 2014-05-27
    • US13406728
    • 2012-02-28
    • Xiankuan ZhangRay Montez
    • Xiankuan ZhangRay Montez
    • C07D317/38C07C68/06
    • C07D317/38
    • A method of forming a cyclic carbonate product is carried out by reacting an alkylene oxide, such as ethylene oxide, with carbon dioxide in the presence of a metal organic framework (MOF) catalyst with less than 0.5 mol % of any potassium or quaternary ammonium salts present based on moles of alkylene oxide feed in a reaction zone under reaction conditions to form a cyclic carbonate product. The cyclic carbonate product may be optionally fed as a crude carbonate product that does not undergo any purification or separation, other than the optional removal of any portion of unreacted alkylene oxide, carbon dioxide, and light hydrocarbon gases, to a second reaction zone containing a transesterification catalyst along with an aliphatic monohydric alcohol. The cyclic carbonate product and monohydric alcohol are allowed to react under reaction conditions to form the dialkyl carbonate and diol products.
    • 形成环状碳酸酯产物的方法是通过使环氧乙烷与环氧乙烷在金属有机骨架(MOF)催化剂存在下与少于0.5mol%的任何钾或季铵盐 在反应条件下在反应区中以烯化氧原料的摩尔数存在,形成环状碳酸酯产物。 环状碳酸酯产物可以任选地作为不经过任何纯化或分离的粗制碳酸酯产物进料,除了将任何部分未反应的氧化烯,二氧化碳和轻质烃气体任选地除去到含有 酯交换催化剂和脂族一元醇。 使环状碳酸酯产物和一元醇在反应条件下反应形成碳酸二烷基酯和二醇产物。
    • 22. 发明授权
    • Solid catalyst useful for converting an alkylene oxide to an alkylene glycol
    • 用于将烯化氧转化为亚烷基二醇的固体催化剂
    • US08053609B2
    • 2011-11-08
    • US11872318
    • 2007-10-15
    • William CrudgeJaap Willem van HalXiankuan Zhang
    • William CrudgeJaap Willem van HalXiankuan Zhang
    • C07C27/00
    • B01J31/08C07C29/106Y02P20/52C07C31/207C07C31/202C07C31/205
    • A solid (i.e., heterogeneous) catalyst useful for preparing an alkylene glycol from the corresponding alkylene oxide as well as a process for the catalytic hydration of an alkylene oxide to an alkylene glycol utilizing such a catalyst are provided. The catalyst of the present invention is based on an ion exchange resin including polystyrene crosslinked with from about 2 to about 10 weight (wt.) % divinyl benzene. The ion exchange resin further includes quaternary ammonium groups or quaternary phosphonium groups. The process includes reacting water and an alkylene oxide in at least one reactor under conditions to form an alkylene glycol, wherein the at least one reactor includes a catalyst based on an ion exchange resin that includes polystyrene crosslinked with from about 2 to about 10 weight (wt.) % divinyl benzene.
    • 提供了可用于从相应的烯化氧制备亚烷基二醇的固体(即非均相)催化剂,以及利用这种催化剂将烯化氧催化水合成亚烷基二醇的方法。 本发明的催化剂基于包含用约2-约10重量%的二乙烯基苯交联的聚苯乙烯的离子交换树脂。 离子交换树脂还包括季铵基或季鏻基。 该方法包括在至少一个反应器中在形成亚烷基二醇的条件下使水和烯化氧反应,其中至少一个反应器包括基于离子交换树脂的催化剂,所述催化剂包括以约2至约10重量% wt。)%二乙烯基苯。
    • 24. 发明申请
    • Catalyst for epoxidation of an alkene to an alkene oxide, method of making and method of using thereof
    • 将烯烃环氧化成氧化烯的催化剂,其制备方法及其使用方法
    • US20070149792A1
    • 2007-06-28
    • US11316031
    • 2005-12-22
    • Xiankuan ZhangAlla Khanmamedova
    • Xiankuan ZhangAlla Khanmamedova
    • C07D301/03
    • C07D301/03
    • The present invention if for a catalyst for epoxidation of an alkene, such as ethylene, to an alkene oxide, such as ethylene oxide, on which silver has been deposited on alumina as a support which has been modified with certain weak base compounds, such as oxides of a Group 1A, Group 2A, Group 3A or the first transition series of the Periodic Table of Elements, and with a high temperature heat treatment. Optional promoters selected from the group consisting of compounds of Group 1A, Group 2A, Group 7A and Group 8 may be contacted with the alpha-alumina support in solution with a silver compound, with the catalyst precursor before calcination or with the catalyst after calcination. The catalyst is brought into contact with alkene and oxygen under reaction conditions to selectively convert the alkene to an alkene oxide.
    • 如果将用于将烯烃如乙烯的环氧化的催化剂用于氧化烯如氧化乙烯上的催化剂,其中银已经沉积在氧化铝上作为用某些弱碱化合物改性的载体,例如 1A组,2A组,3A组的氧化物或元素周期表的第一过渡系列,并进行高温热处理。 选自由1A组,2A组,7A组和8组的化合物组成的组的选择性促进剂可以与溶液中的α-氧化铝载体与银化合物,煅烧前的催化剂前体或煅烧后的催化剂接触。 催化剂在反应条件下与烯烃和氧接触以选择性地将烯烃转化为烯烃氧化物。