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    Process for preparing a 1,3-alkandiol from 3-hydroxyester
    1.
    发明授权
    Process for preparing a 1,3-alkandiol from 3-hydroxyester 失效
    从3-羟基酯制备1,3-链二醇的方法

    公开(公告)号：US06617478B2

    公开(公告)日：2003-09-09

    申请号：US10212671

    申请日：2002-08-06

    申请人： Byeong No Lee ,  In Sun Jung ,  Eun Joo Jang ,  Jung Ho Lee ,  Hyung Rok Kim ,  Yo Han Han

    发明人： Byeong No Lee ,  In Sun Jung ,  Eun Joo Jang ,  Jung Ho Lee ,  Hyung Rok Kim ,  Yo Han Han

    IPC分类号： C07C2700

    CPC分类号： B01J23/72 ,  B01J21/08 ,  B01J23/8892 ,  B01J37/0009 ,  B01J37/03 ,  B01J37/18 ,  C07C29/149 ,  C07C31/205

    摘要： A process for preparing a 1,3-alkandiol from a 3-hydroxyester, comprises preparing a catalyst by adding an alkaline precipitator to an aqueous copper salt solution to form copper hydroxide particles, and aging the particles following the addition of a colloidal silica thereto; activating the catalyst by reduction with a H2 gas or a H2-containing gas and applying a pressure of about 5 psig to about 2000 psig at a temperature of about 100° C. to about 250° C. in the presence of an activation solvent; and hydrogenating a 3-hydroxyester in a liquid phase slurry with a H2 gas or a H2-containing gas and applying a pressure of about 50 psig to about 3000 psig at a temperature of about 100° C. to about 250° C. in the presence of the activated catalyst and a reaction solvent, whereby a 1,3-alkanediol can be selectively prepared from a 3-hydroxyester with a high yield.

    摘要翻译： 从3-羟基酯制备1,3-二醇的方法包括通过向铜盐水溶液中加入碱性沉淀器来制备催化剂以形成氢氧化铜颗粒，并且在加入胶体二氧化硅后使颗粒老化; 通过用H 2气体或含H 2气体还原并在约100psi至约250℃的温度下在活化溶剂的存在下施加约5psig至约2000psig的压力来活化催化剂; 并用氢气或含H 2气体在液相浆料中氢化3-羟基酯，并在约100℃至约250℃的温度下施加约50psig至约3000psig的压力 存在活化的催化剂和反应溶剂，从而可以高产率从3-羟基酯选择性地制备1,3-链烷二醇。