摘要
首先合成了MgO负载三聚氰胺缩甲醛树脂的复合载体(MEF/MgO),通过与钯化合物作用,制备出高分子负载钯络合物催化剂。利用XRD和XPS对其进行了结构表征,考察了其在葡萄糖与正辛胺反应原位形成的Schiff碱催化加氢制备葡辛胺的催化活性。结果表明,高分子配体与无机载体之间进行了化学复合,高分子与钯之间形成了配位作用。该类催化剂在对葡辛胺的催化加氢制备中表现出了较好的催化活性。最佳的催化剂体系是:复合载体中氮含量为5 58%,催化剂中Pd质量分数为3 58%;最佳的催化反应条件是:添加剂三乙胺用量1 0ml、反应温度333K、反应氢压1 5MPa、反应时间6h、催化剂用量0 7g、反应溶剂乙醇60ml、葡萄糖43mmol、正辛胺31mmol。在此反应条件下,葡辛胺的产率可达57 6%。
Polymer/MgO complex support was synthesized and polymersupported Pd complex catalysts were prepared by polymer/MgO reacting with Pd precursor These catalysts were characterized by XRD and XPS and their catalytic activity were observed by the reaction of hydrogenation of Schiff base, derived from the on the spot reaction of glucose and nocytlamine, to NnocytlDglucamine The results show that the chemical action occurred between polymer and MgO in the polymer/MgO complex support, and Pd coordinated with polymer on the catalyst This kind catalysts perform the good activity in the preparation of NnocytlDglucamine The optimum N content is 558wt% in MEF/MgO, Pd content (wPd / wMEF) is 358% The optimum reaction conditions are as follows: additive, 10ml triethylamine; reaction temperature, 333 K; hydrogen pressure, 15 MPa; reaction time, 6hr; reaction solvent, 60 ml ethanol; the amount of catalyst, 07 g; 43mmol Dglucose; 31mmol octylamine Under these experimental conditions, the highest yield of NnocytlDglucamine (576%) was obtained
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
2003年第3期24-28,共5页
Natural Gas Chemical Industry
基金
河南省自然科学基金项目(编号 :0 1 1 1 0 3 0 90 0 )
关键词
高分子/MgO复合载体
钯配合物
催化加氢
葡辛胺
polymer/MgO complex support
Pd complex
catalytic hydrogenation
N-n-ocytl-D-glucamine
