申请人:ZHANG Tao
公开号:US20110046419A1
公开(公告)日:2011-02-24
A method for producing ethylene glycol, including (a) adding a polyhydroxy compound and water to a sealed high-pressure reactor, (b) removing air and introducing hydrogen, and (c) allowing the polyhydroxy compound to react in the presence of a catalyst while stiffing. The catalyst includes a first active ingredient and a second active ingredient. The first active ingredient includes a transition metal of Group 8, 9, or 10 selected from iron, cobalt, nickel, ruthenium, rhodium, palladium, iridium, and platinum, and/or a mixture thereof. The second active ingredient includes a metallic state of molybdenum and/or tungsten, or a carbide, nitride, or phosphide thereof. The method is carried out at a hydrogen pressure of 1-12 MPa, at a temperature of 120-300° C. for not less than 5 min in a one-step catalytic reaction. The efficiency, selectivity, and the yield of ethylene glycol are high. The preparation process is simple and the materials used are renewable.
生产乙二醇的方法,包括(a)将多羟基化合物和水添加到密封的高压反应器中,(b)排除空气并引入氢气,以及(c)在存在催化剂的情况下让多羟基化合物在搅拌的同时发生反应。催化剂包括第一活性成分和第二活性成分。第一活性成分包括从铁、钴、镍、钌、铑、钯、铱和铂中选择的8、9或10族过渡金属,和/或它们的混合物。第二活性成分包括钼和/或钨的金属态,或其碳化物、氮化物或磷化物。该方法在氢气压力为1-12兆帕,在温度为120-300°C下进行,进行不少于5分钟的一步催化反应。乙二醇的效率、选择性和产率高。制备过程简单,所使用的材料可再生。