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    • 3. 发明授权
    • Process for converting glycol dialkyl ether
    • 二醇二烷基醚转化方法
    • US4368337A
    • 1983-01-11
    • US248913
    • 1981-03-30
    • Kinya TawaraHiroki KamiyamaShigenori NakashizuTakashi KanekoTadahiro WakuiTadashi Matsumoto
    • Kinya TawaraHiroki KamiyamaShigenori NakashizuTakashi KanekoTadahiro WakuiTadashi Matsumoto
    • B01J31/00C07C1/00C07C1/20C07C11/02C07C27/00C07C29/10C07C29/132C07C31/02C07C31/12C07C31/125C07C31/20C07C41/00C07C41/26C07C43/11C07C43/13C07C67/00C07C41/01
    • C07C29/10C07C31/12C07C31/125C07C41/26Y02P20/52
    • A process is described for converting glycol dialkyl ether without substantial formation of olefin oligomers by reaction with water, comprising reacting a feed glycol di-tertiary alkyl ether represented by structural formula (A) with water using a strongly acidic cation-exchange resin as a catalyst and a reaction temperature of from 40.degree. C. to 150.degree. C. under a pressure of from 1 to 70 kg/cm.sup.2 (absolute pressure) in a molar ratio of water/feed glycol di-tertiary alkyl ether represented by the structural formula (A) of from 0.05/1 to 60/1, to convert the ether of formula (A) into at least one of (1) glycol mono-tertiary alkyl ether represented by the structural formula (B) and tertiary alcohol represented by the structural formula (C), or (2) glycol mono-tertiary alkyl ether represented by the structural formula (B) tertiary alcohol represented by the structural formula (C) and tertiary olefin represented by the structural formula (D); wherein (A), (B), (C), and (D) are as follows: ##STR1## wherein R.sub.1 represents a methyl group, an ethyl group, or a propyl group, n represents an integer of from 1 to 10, and R.sub.2 represents an alkylene group having from 2 to 14 carbon atoms, and the total number of carbon atoms in the group --(R.sub.2 --O).sub.n -- is from 2 to 30.
    • 描述了通过与水反应而不使烯烃低聚物形成烯烃转化的方法,包括使用强酸性阳离子交换树脂作为催化剂使由结构式(A)表示的进料二醇二叔烷基醚与水反应 反应温度为40〜150℃,以1〜70kg / cm 2(绝对压力)的压力下,以结构式表示的水/进料二醇二叔烷基醚的摩尔比( A)为0.05 / 1至60/1,将式(A)的醚转化为由结构式(B)表示的(1)二醇单叔烷基醚和由结构式(B)表示的叔醇中的至少一种, 式(C)或(2)由结构式(B)表示的结构式(B)叔醇的乙二醇单叔烷基醚和由结构式(D)表示的叔烯烃; 其中(A),(B),(C)和(D)如下:(D)其中R 1表示甲基 基团,乙基或丙基,n表示1〜10的整数,R 2表示碳原子数为2〜14的亚烷基,基团中的碳原子数为(R 2 -O )n-为2〜30。