Method for the production of sorbit
    4.
    发明授权
    Method for the production of sorbit 失效
    生产山梨糖的方法

    公开(公告)号:US07022824B2

    公开(公告)日:2006-04-04

    申请号:US10479967

    申请日:2002-06-10

    IPC分类号: C07H1/00 C07C31/18

    摘要: A process is described for preparing sorbitol by catalytic hydrogenation of a monosaccharide forming sorbitol on hydrogenation in the liquid phase, which comprises the catalyst being obtainable by: i) single or multiple treatment of an amorphous silicon dioxide based support material with a halogen-free aqueous solution of a low-molecular-weight ruthenium compound and subsequent drying of the treated support material at below 200° C., ii) reducing the solid obtained in i) with hydrogen at from 100 to 350° C., step ii) being carried out immediately after step i).

    摘要翻译: 描述了通过在液相中氢化制备单糖形成山梨糖醇的催化氢化制备山梨糖醇的方法,该方法包括催化剂,其可通过以下步骤获得:i)用无卤素水溶液单独或多次处理无定形二氧化硅基载体材料 低分子量钌化合物的溶液,随后在低于200℃下干燥经处理的载体材料,ii)在100-350℃下用氢还原在i)中获得的固体,步骤ii) 在步骤i之后立即出现)。

    RUTHENIUM CATALYSTS
    5.
    发明申请
    RUTHENIUM CATALYSTS 审中-公开
    RENHENIUM催化剂

    公开(公告)号:US20080210222A1

    公开(公告)日:2008-09-04

    申请号:US12118201

    申请日:2008-05-09

    IPC分类号: C13J1/00

    摘要: Sugar alcohols are prepared by catalytically hydrogenating the corresponding monosaccharides and oligosaccharides in the liquid phase over a heterogeneous ruthenium catalyst, with the exception of the preparation of sorbitol, wherein the heterogeneous ruthenium catalyst is prepared by: i) treating a support material based on amorphous silicon dioxide comprising at least 95% by weight of silicon dioxide and less than 1% by weight aluminum oxide, calculated as Al2O3, one or more times with a halogen-free aqueous solution of a low molecular weight ruthenium compound which is a ruthenium (III) salt or a metal ruthenate and subsequently drying the treated support material at a temperature below 200° C., and ii) reducing the solid obtained in i) by means of hydrogen at a temperature ranging from 100 to 350° C., wherein step ii) is carried out directly after step i), and wherein the ruthenium content in the catalyst ranges from 0.1 to 5% by weight, based on the support material.

    摘要翻译: 糖醇通过在异相钌催化剂上催化氢化相应的液相中的单糖和寡糖而制备,除了制备山梨糖醇之外,其中非均相钌催化剂通过以下制备:i)处理基于非晶硅的载体材料 二氧化物包含至少95重量%的二氧化硅和小于1重量%的氧化铝,以Al 2 O 3 3计算,用卤素 - 游离的低分子量钌化合物的水溶液,其是钌(III)盐或金属钌酸盐,随后在低于200℃的温度下干燥经处理的载体材料,和ii)通过方法还原在i)中获得的固体 的氢气,其中步骤ii)在步骤i)之后直接进行,并且其中催化剂中的钌含量为0.1至5重量%,基于载体 材料。