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发明授权
CN100584813C 由对苯二甲酸加氢制对苯二甲醇的方法 有权

由对苯二甲酸加氢制对苯二甲醇的方法
摘要：
一种由对苯二甲酸加氢制对苯二甲醇的方法，对苯二甲酸在催化剂存在下于氢气气氛中进行加氢反应。反应在溶剂水中进行，对苯二甲酸与水的重量比为1∶(5～20)，反应温度为180～300℃，氢气压力为5.0～10.0MPa，反应时间为3～8小时。催化剂以Al2O3为载体，负载活性组分金属Ru、金属Sn和B。Ru与Sn的摩尔比为1∶(0.5～2.0)，催化剂中活性组分金属Ru和金属Sn的总含量为5～12wt%，B的含量为5～20wt%，催化剂粒度为80～250目，催化剂用量以反应体系的总量计为1～5wt%。与现有技术相比，本发明提供的对苯二甲醇制备方法更经济，原料成本更低，有利于大规模工业化生产。
摘要（英）：

The invention discloses a terephthalyl alcohol preparing method by hydrotreating terephthalic acid, which proceeds with the hydrogenation reaction in the accelerant and hydrogen gas condition. The reaction is made in the solvent water, wherein the proportion by weight of terephthalic acid and water is 1: (5-20), the reaction temperature is 180-300Deg. C, the hydrogen pressure is 5.0-10.0MPa, the reaction time is 3-8 hours, the accelerant regards AL2O3 as the carrier, and the load active component is Ru, Sn and B, the mole ratio of Ru and Sn is 1:(0.5-2.0), the total content of the active component Ru and Sn in the accelerant is 5-12wt%, the content of B is 5-20wt%, the grain size of the accelerant is 80-250 mesh size, the usage of the accelerant in the reaction system is 1-5wt%. The invention is provided with the low material cost, which is fit for the mass industry production.

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