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    • 3. 发明授权
    • Production of ethylene glycol from synthesis gas
    • 从合成气生产乙二醇
    • US4665222A
    • 1987-05-12
    • US691750
    • 1985-01-15
    • Robin Whyman
    • Robin Whyman
    • C07C29/157C07C29/158C07C69/16C07C27/06C07C69/14
    • C07C29/157C07C29/158C07C67/36Y02P20/52
    • A process for the production of ethylene glycol, methanol, ethanol and/or esters thereof from mixtures of carbon monoxide and hydrogen (synthesis gas) which comprises contacting a mixture of carbon monoxide and hydrogen with a catalyst at elevated pressure in a liquid medium, said catalyst comprising ruthenium and at least one other metal from Group VIII of the Periodic Table, and wherein the molar proportion of ruthenium is at least 50 percent relative to the other Group VIII metals. The process is particularly applicable to the selective production of ethylene glycol. The preferred catalysts, which comprise ruthenium/rhodium, may be present in elemental form, as coordination compounds or salts, e.g. carbonyls, acetyl acetonates or carboxylates. It is especially preferred to use a co-catalyst comprising a compound of one or more the metals of Groups IA, IIA or IIB or a nitrogen containing cation and/or base. Suitable liquid media include carboxylic acids (e.g. acetic acid) and ethers (e.g. tetraglyme).
    • 一种从一氧化碳和氢气(合成气体)的混合物生产乙二醇,甲醇,乙醇和/或其酯的方法,包括将一氧化碳和氢气的混合物与催化剂在高压下在液体介质中接触,所述方法包括: 包含钌和来自元素周期表第Ⅷ族的至少一种其它金属的催化剂,并且其中钌的摩尔比例相对于其它VIII族金属为至少50%。 该方法特别适用于选择性生产乙二醇。 包含钌/铑的优选催化剂可以以元素形式存在,作为配位化合物或盐,例如。 羰基,乙酰丙酮酸盐或羧酸盐。 特别优选使用包含一种或多种IA,IIA或IIB族金属的化合物或含氮阳离子和/或碱的助催化剂。 合适的液体介质包括羧酸(例如乙酸)和醚(例如四甘醇二甲醚)。