文章摘要
苏佳娜,郭秀枝,王公应,邓志勇.Ru/CN催化对苯二甲酸二甲酯加氢制备1,4-环己烷二甲酸二甲酯[J].精细化工,2021,38(7):0
Ru/CN催化对苯二甲酸二甲酯加氢制备1,4-环己烷二甲酸二甲酯
Catalytic hydrogenation of dimethyl terephthalate to dimethyl 1,4-cyclohexanedicarboxylate over Ru/CN
投稿时间:2021-02-23  修订日期:2021-03-05
DOI:
中文关键词: 对苯二甲酸二甲酯  1,4-环己烷二甲酸二甲酯  催化加氢  Ru/CN催化剂
英文关键词: dimethyl terephthalate  1,4-cyclohexanedicarboxylate  catalytic hydrogenation  Ru/CN catalyst
基金项目:
作者单位E-mail
苏佳娜 中科院成都有机化学研究所 1139068018@qq.com 
郭秀枝 中国科学院成都有机化学研究所  
王公应 中国科学院成都有机化学研究所  
邓志勇 中国科学院成都有机化学研究所 dengzhiyong@cuit.edu.cn 
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中文摘要:
      通过超声辅助NaBH4还原法制备了3%Ru/CN催化剂(Ru的质量分数),该催化剂用于对苯二甲酸二甲酯(DMT)加氢制备1,4-环己烷二甲酸二甲酯(DMCD)。采用Raman、SEM、TEM、N2吸脱附、XRD、XPS等对载体和催化剂的组成、表面性质进行表征,结果表明,氮元素成功掺入碳骨架中且氮掺杂碳材料为介孔结构。研究了催化剂的用量、反应温度、H2 压力、反应时间等对催化剂加氢性能的影响。结果表明,当反应物用量为1.00 g,催化剂(含载体)用量为0.05 g,反应温度140 ℃,反应压力5.0 MPa,反应时间1 h时,DMT转化率为100%,DMCD选择性为99.3%。3%Ru/CN-1000催化剂循环使用5次后,催化剂催化性能未见明显下降,DMT转化率为98.8%,DMCD选择性为99.7%。
英文摘要:
      3%Ru/CN was prepared via a simple ultrasound-assisted NaBH4 reduction method and used for hydrogenation of dimethyl terephthalate (DMT) to dimethyl 1,4-cyclohexanedicarboxylate (DMCD). The composition and surface properties of the support and catalyst were characterized by Raman spectrum, SEM, TEM, N2 adsorption-desorption isotherms, XRD, XPS, etc. The results showed that nitrogen was successfully incorporated into the carbon framework and the N-doped carbon material had a mesoporous structure. The effects of the amount of catalyst, reaction temperature, H2 pressure and reaction time on the hydrogenation of DMT to DMCD were investigated. Under optimal reaction conditions: m(DMT) is 1.00 g, m(catalyst) is 1.00 g, reaction temperature is 140 ℃,H2 pressure is 5.0 MPa and reaction time is 1h, the conversion of DMT is 100% and selectivity of DMCD is 99.3%. After recycled for 5 times, the catalytic performance of 3%Ru/CN-1000 catalyst did not decrease obviously, the conversion of DMT and the DMCD selectivity was 98.8% and 99.7%, respectively.
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