| 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. |
1、源头对接，价格透明
2、平台验证，实名审核
3、合同监控，代办手续
4、专员跟进，交易保障