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    • 10. 发明授权
    • Alkoxylation catalyst
    • 烷氧基化催化剂
    • US06365541B1
    • 2002-04-02
    • US09257630
    • 1999-02-25
    • Ignaz WimmerHildegard Freundl
    • Ignaz WimmerHildegard Freundl
    • B01J3100
    • C08G65/2642B01J31/04B01J2231/4288C07C41/03C07C67/26C07C69/24C07C43/11C07C43/1785
    • An alkoxylation catalyst is prepared by a) reaction of one mol of a dicarboxylic acid with from 1.5 to 8 mol of an alkoxylated alcohol to form the corresponding dicarboxylic monoester, b) formation of an alkaline earth metal salt of the dicarboxylic monoester by addition of water and from 0.45 to 0.55 mol of a basic alkaline earth metal compound per mol of dicarboxylic acid originally used, c) partial neutralization of the alkaline earth metal salt by addition of from 0.25 to 0.7 mol of H2SO4 per mol of basic alkaline earth metal compound originally used and d) removal of the water present at a temperature of less than 100° C. The catalyst prepared in this way makes it possible to prepare colorless alkoxylates having a narrow homologue distribution.
    • 通过a)使一摩尔二羧酸与1.5至8摩尔烷氧基化醇反应形成相应的二羧酸单酯来制备烷氧基化催化剂,b)通过加入水形成二羧酸单酯的碱土金属盐;和 原始使用的每摩尔二羧酸为0.45〜0.55摩尔的碱土金属化合物,c)通过加入0.25〜0.7摩尔H 2 SO 4 /摩尔碱性碱土金属化合物,最初使用的部分中和 和d)去除在低于100℃的温度下存在的水。以这种方式制备的催化剂使得可以制备具有窄的同系物分布的无色烷氧基化物。