中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

2 records (took 0.023 seconds)

    Improved catalyst for hydrogenation of maleic acid to 1,4-butanediol
    1.
    发明专利
    Improved catalyst for hydrogenation of maleic acid to 1,4-butanediol 审中-公开
    改进的用于将1,4-丁二醇加成马来酸的催化剂

    公开(公告)号：JP2007181829A

    公开(公告)日：2007-07-19

    申请号：JP2007026179

    申请日：2007-02-05

    Applicant: Standard Oil Co:The ,  ザ スタンダード オイル カンパニーThe Standard Oil Company

    Inventor： BUDGE JOHN RAYMOND ,  ATTIG THOMAS GEORGE ,  DUBBERT ROBERT ALLEN

    IPC: B01J23/89 ,  B01J23/68 ,  C07B61/00 ,  C07C29/149 ,  C07C29/17 ,  C07C31/20 ,  C07D307/08

    CPC classification number: C07D307/08 ,  B01J23/688 ,  B01J23/8986 ,  C07C29/177 ,  C07C31/207

    Abstract: PROBLEM TO BE SOLVED: To provide an improved catalyst for the catalytic hydrogenation of maleic acid, maleic anhydride or other hydrogenatable precursor to 1,4-butanediol and tetrahydrofuran.
    SOLUTION: The invention is a catalyst essentially comprising palladium, silver, rhenium and iron. Another embodiment of the invention is a method for making such catalyst for the production of 1,4-buthanediol comprising: (i) oxidizing a carbon support by bringing the carbon support contact with an oxidizing agent; (ii) impregnating in one or more impregnation steps comprising contacting a carbon support with a metal source of palladium, silver, rhenium and iron; (iii) drying the impregnated carbon support to remove solvent after each impregnation step; and (iv) heating the impregnated carbon support from ambient temperature to a temperature of between about 100°C and about 350°C under reducing conditions.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：为马来酸，马来酸酐或其他可氢化前体催化氢化成1,4-丁二醇和四氢呋喃提供改进的催化剂。 解决方案：本发明是一种主要包含钯，银，铼和铁的催化剂。 本发明的另一个实施方案是制备用于生产1,4-丁二醇的这种催化剂的方法，其包括：（i）通过使碳载体与氧化剂接触而氧化碳载体; （ii）浸渍在一个或多个浸渍步骤中，包括使碳载体与钯，银，铼和铁的金属源接触; （iii）在每次浸渍步骤之后干燥浸渍的碳载体以除去溶剂; 和（iv）在还原条件下将浸渍的碳载体从环境温度加热至约100℃至约350℃的温度。 版权所有（C）2007，JPO＆INPIT

Patent Agency Ranking