专利详情

专利名称	A method for preparing ethylene glycol from polyhydroxy compound
申请号	EP20090828605	专利类型	EP
公开（公告）号	EP2351725(B1)	公开（授权）日	2014.07.23
申请（专利权）人	中国科学院大连化学物理研究所	发明（设计）人	ZHANG, TAO;ZHENG, MINGYUAN;WANG, AIQIN;JI, NA;PANG, JIFENG;TAI, ZHIJUN;ZHOU, LIKUN;CHEN, JINGGUANG;WANG, XIAODONG
主分类号	C07C29/00	IPC主分类号	C07C29/00;B01J21/04;B01J21/06;B01J21/08;B01J21/18;B01J23/652;B01J23/85;B01J23/882;B01J23/883;B01J23/888;B01J27/19;B01J27/22;B01J27/24;B01J37/02;B01J37/18;C07C31/20
专利有效期	A method for preparing ethylene glycol from polyhydroxy compound 至A method for preparing ethylene glycol from polyhydroxy compound	法律状态
说明书摘要	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 stirring. The catalyst includes one or more 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, and/or alloy 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.