1,4 环己烷二甲醇是生产改性聚酯的中间单体。采用铜系催化剂,以1,4 环己烷二甲酸二甲酯为原料,低压加氢生成1,4 环己烷二甲醇。考察了反应温度、反应压力等对反应活性的影响,进行了200h的催化剂寿命评价,并对催化剂进行了表征。结果表明,在反应温度200℃,反应压力3 0MPa的条件下,1,4 环己烷二甲酸二甲酯的转化率大于95%,1,4 环己烷二甲醇的选择性大于98%,XRD谱图说明金属铜是该催化剂的主要活性中心。 1,4-cyclohexanedimethanol is an intermediate monomer for the production of modified polyesters. Using copper catalyst, 1,4 cyclohexane dicarboxylate as raw material, low pressure hydrogenation 1,4 cyclohexane dimethanol. The effects of reaction temperature, reaction pressure and so on on the reactivity were investigated. The catalyst life was evaluated after 200 hours and the catalyst was characterized. The results showed that the conversion of dimethyl 1,4 cyclohexane dicarboxylate was more than 95% and the selectivity of 1,4 cyclohexane dimethanol was more than 98% at the reaction temperature of 200 ℃ and reaction pressure of 30 MPa. The XRD pattern shows that copper metal is the main active site for this catalyst.