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    ALUMINA SUPPORT, A PROCESS FOR PREPARING THE SUPPORT, A SILVER CATALYST PREPARED FROM THE SUPPORT, AND USE THEREOF
    7.
    发明申请
    ALUMINA SUPPORT, A PROCESS FOR PREPARING THE SUPPORT, A SILVER CATALYST PREPARED FROM THE SUPPORT, AND USE THEREOF 有权
    氧化铝支持，制备支持的过程，由支持准备的银催化剂及其使用

    公开(公告)号：US20120108832A1

    公开(公告)日：2012-05-03

    申请号：US13287720

    申请日：2011-11-02

    申请人： Jianshe CHEN ,  Jun Jiang ,  Shujuan Wang ,  Zhixiang Zhang ,  Jinbing Li

    发明人： Jianshe CHEN ,  Jun Jiang ,  Shujuan Wang ,  Zhixiang Zhang ,  Jinbing Li

    IPC分类号： C07D301/03 ,  B01J21/10 ,  B01J27/02 ,  B01J21/04

    CPC分类号： C07D301/10 ,  B01J21/04 ,  B01J23/688 ,  B01J35/002 ,  B01J35/026 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1042 ,  B01J37/0018 ,  B01J37/0201 ,  B01J37/06 ,  B01J37/084 ,  Y02P20/52

    摘要： An alumina support comprises alpha-alumina as the main crystal phase of its backbone, and having a specific surface area of no higher than 3.0 m2/g, a pore volume ranging from 0.3 ml/g to 0.8 ml/g, an alkaline earth metal content ranging from 0.05% to 2.0% by weight of the support, wherein the support has such properties that treating the support with an aqueous oxalic acid solution having a concentration ranging from 0.4% to 2.0% by weight and having twice the weight of the support for 30 minutes can produce a leach liquor having an aluminum content of no higher than 60 μg/mL, a sodium content of no higher than 20 μg/mL, and a silicon content of no higher than 40 μg/mL. Processes for preparing the alumina support, silver catalysts comprising the alumina support, and methods of preparing ethylene oxide by ethylene oxidation using the silver catalyst are also disclosed herein.

    摘要翻译： 氧化铝载体包含α-氧化铝作为其主链的主要结晶相，比表面积不高于3.0m 2 / g，孔体积为0.3ml / g至0.8ml / g，碱土金属 含量范围为载体重量的0.05％至2.0％，其中载体具有这样的性质：用浓度为0.4重量％至2.0重量％的草酸水溶液处理载体并具有载体重量的两倍 30分钟可以生产铝含量不超过60μg/ mL，钠含量不超过20μg/ mL，硅含量不高于40μg/ mL的浸出液。 本文还公开了制备氧化铝载体的方法，包含氧化铝载体的银催化剂和使用银催化剂通过乙烯氧化制备环氧乙烷的方法。