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An improved process for the hydrogenation of 1, 4-butanediol of maleic acid 发明授权

2023-05-03 2890 78K 0

专利信息

申请日期 2025-07-12 申请号 JP07256320
公开(公告)号 JP3830565B2 公开(公告)日 2006-10-04
公开国别 JP 申请人省市代码 全国
申请人 STANDARD OIL CO : THE
简介 Prodn. of tetrahydrofuran (THF) and 1, 4-butanediol (BDO), contg. a major portion of BDO, comprises catalytic hydrogenation of an hydrogenatable precursor in contact with an H2-contg. gas and a carbon-supported Pd, Ag and Re-contg. hydrogenation catalyst prepd. by : i) impregnating the C support with a source of Pd, Ag and Re, in one or more steps, using at least one soln. of the metal sources; ii) drying the impregnated support to remove solvent after each impregnation step; iii) heating the impregnated support at 100-350 deg.C under reducing conditions.


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