碳纤维负载的钯基催化剂催化苯甲酸加氢制备环己基甲酸  

The Catalytic Hydrogenation Synthesis of Benzoic Acid to Cyclohexanecarboxylic Acid by Pd/ACF Catalyst

作　　者：邵建华 宁剑波 徐威 

机构地区：[1]江苏清泉化学有限公司,江苏滨海224500 [2]浙江台州清泉医药化工有限公司浙江省中高压催化加氢工程技术研究中心,浙江仙居318000

出　　处：《化工生产与技术》2014年第1期31-33,71,共3页Chemical Production and Technology

摘　　要：研究了苯甲酸催化加氢合成环己基甲酸的工艺,考察了不同催化剂、溶剂、反应温度和压力等对反应的影响.结果表明,以碳纤维负载型钯基催化剂（PdACF）、硅藻土负载的镍锡银金属为助剂、环己基甲酸为溶剂,反应温度在130～150℃、压力2.5～3.5 MPa时,反应转化率高达99.9％,环己基甲酸的选择性达99.5％.该方法可有效抑制副产物的生成,提高产品收率.The effects of reaction conditions on the catalytic hydrogenation of benzoic acid to cyclohexanecarboxylic acid including catalysts, solvent, reaction temperature and pressure were investigated. The results indicated that Pd/ACF and Ni/Sn/Ag metal auxiliary catalyst exhibited higher activity. When the reaction proceeded in the conditions of 130 ~150 ℃ and 2.5 ~3.5 MPa, the conversion of benzoic acid reached 99.9% with 99.5% selectivity of cyclohexanecarboxylic acid. The catalysts efficiently inhibit the side reaction and increase the yield of product.

关 键 词：环己基甲酸 催化加氢 苯甲酸 镍锡银金属助剂 

分 类 号：TQ235[化学工程—有机化工]