摘要
A bromine-containing copper-organic coordination compound was prepared by the reaction of tetrrpropylammonium bromide with copper bromide in ethyl acetate solution.The compound obtained was characterized with FTIR,XRD,ICP-AES and EA.Meanwhile,its catalytic performance for the oxidative carbonylation of methanol was investigated.The results showed that the introduction of ligand could change the density of copper electron cloud,which improved the redox property for the oxidative carbonylation of methanol to prepare dimethyl carbonate.In the presence of strong base and weak acid salts,the per pass conversion of methanol could reach 57% under the reaction conditions of temperature 383 K,pressure 3.5 MPa,and the mass concentration of catalyst in methanol 0.20 g·ml-1.
A bromine-containing copper-organic coordination compound was prepared by the reaction of tetrrpropylammonium bromide with copper bromide in ethyl acetate solution. The compound obtained was characterized with FTIR, XRD, ICP-AES and EA. Meanwhile, its catalytic performance for the oxidative carbonylation of methanol was investigated. The results showed that the introduction of ligand could change the density of copper electron cloud, which improved the redox property for the oxidative carbonylation of methanol to prepare dimethyl carbonate. In the presence of strong base and weak acid salts, the per pass conversion of methanol could reach 57% under the reaction conditions of temperature 383K, pressure 3.5 MPa, and the mass concentration of catalyst in methanol 0.20g·ml^-1.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2009年第7期1714-1718,共5页
CIESC Journal
关键词
铜配合物
碳酸二甲酯
氧化羰化
配合催化剂
copper-organic coordination compounds
dimethyl carbonate
oxidative carbonylation
complex catalyst
