发明名称 Reducing color formers in 1,4-butanediol
摘要 1,4-Butynediol is catalytically hydrogenated under conventional conditions to produce a reaction product containing 1,4-butanediol. This reaction product is then hydrogenated under acid conditions, i.e., pH 1-6 and temperatures of 120 DEG -150 DEG C., to produce a 1,4-butanediol product. Upon further separation, the 1,4-butanediol is practically free from compounds that would produce color when the diol is used to make polyesters.
申请公布号 US4213000(A) 申请公布日期 1980.07.15
申请号 US19790042945 申请日期 1979.05.29
申请人 DU PONT DE NEMOURS, E I & 发明人 COATES, JOHN S
分类号 C07C29/17;C07C29/90;(IPC1-7):C07C31/20;C07C29/24 主分类号 C07C29/17
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