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    • 41. 发明授权
    • Process for the production of alcohols and diols
    • 制备醇和二醇的方法
    • US5395990A
    • 1995-03-07
    • US175542
    • 1993-12-30
    • John Scarlett
    • John Scarlett
    • B01J23/78B01J23/80B01J23/86B01J23/889B01J27/224C07B61/00C07C29/141C07C29/145C07C29/149C07C31/27C07C29/147C07C27/04C07C29/14
    • C07C31/276C07C29/149C07C2101/14
    • A process is described for the production of a hydroxylic compound selected from alcohols and diols by hydrogenation of a hydrogenatable material selected from monoesters of carboxylic acids, monoesters of dicarboxylic acids, diesters of dicarboxylic acids, aldehydes, olefinically unsaturated aldehydes, and mixtures of two or more thereof, which process comprises the steps of:(a) providing a hydrogenation zone containing a charge of a granular hydrogenation catalyst which has a total surface area of at least about 15 m.sup.2 /g, a pore size distribution such that more than 50% of the pore volume is provided by pores in the size range less than about 40 nm, and a surface area distribution such that more than 50% of the total surface area is provided by pores in the size range of from about 7 nm to about 40 nm;(b) supplying to the hydrogenation zone a feed stream of a mixture containing hydrogen and the hydrogenatable material;(c) maintaining the hydrogenation zone under temperature and pressure conditions which are conducive to effecting hydrogenation of the hydrogenatable material; and(d) recovering from the hydrogenation zone a product stream comprising the hydroxylic compound.The process is exemplified by the hydrogenation of dimethyl 1,4-cyclohexanedicarboxylate to yield 1,4-cyclohexanedimethanol.
    • 描述了通过氢化可选择的羧酸单羧酸,二羧酸单酯,二羧酸二酯,醛,烯属不饱和醛的可氢化材料以及两种或两种以上的混合物来制备选自醇和二醇的羟基化合物的方法 该方法包括以下步骤:(a)提供含有粒状氢化催化剂装料的氢化区,其具有至少约15m 2 / g的总表面积,孔径分布使得大于50% 的孔体积由小于约40nm的尺寸范围的孔提供,并且表面积分布使得总表面积的大于50%由尺寸范围为约7nm至约40的孔提供 nm; (b)向氢化区供应含有氢和可加氢材料的混合物的进料流; (c)在有利于可氢化材料的氢化的温度和压力条件下保持氢化区; 和(d)从氢化区回收包含羟基化合物的产物流。 该方法的实例是通过1,4-环己烷二羧酸二甲酯的氢化得到1,4-环己烷二甲醇。