石油化工2016，Vol.45Issue(7)：805-811,7.DOI:10.3969/j.issn.1000-8144.2016.07.006
镍盐催化乙炔羰基化合成丙烯酸酯
Carbonylation of acetylene to acrylates over nickel-salt catalysts
摘要
Abstract
The carbonylation of acetylene to acrylates over several non-halide nickel salt catalysts were studied,and Ni(OAc)2·4H2O exhibited a high catalytic activity in the carbonylation of acetylene to methyl acrylate. The influences of solvents,reaction temperature,reaction time, water,initial pressure of acetylene and initial pressure of carbon monoxide on the carbonylation reactions were investigated. It was showed that,under the conditions of tetrahydrofuran as solvent,initial pressure 4.6 MPa,220℃,n(C2H2)∶n(CH3OH)∶n(CO) 1∶1.2∶4.5, 1.0 mmol Ni(OAc)2·4H2O as catalyst and 2 h,the yield of methyl acrylate and the selectivity to methyl acrylate reached 75.4%and 96.2%,respectively. The yields and selectivities of acrylates decreased with increase of carbon atom number in the aliphatic alcohol molecules under the similar reaction conditions. The selectivities to both ethyl acrylate and n-butyl acrylate were more than 94%at optimal reaction temperature.关键词
乙炔/羰基化/四水合醋酸镍/丙烯酸酯Key words
acetylene/carbonylation/nickel(Ⅱ) acetate tetrahydrate/acrylate分类
化学化工引用本文复制引用
王贤松,杨先贵,姚洁,胡静,张华,王公应..镍盐催化乙炔羰基化合成丙烯酸酯[J].石油化工,2016,45(7):805-811,7.基金项目
四川省青年科技创新研究团队资助计划（2013TD0010）。 （）
