发明授权
- 专利标题: Method for producing ethylene glycol from polyhydroxy compound
- 专利标题(中): 从多羟基化合物制备乙二醇的方法
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申请号: US12916625申请日: 2010-10-31
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公开(公告)号: US08324433B2公开(公告)日: 2012-12-04
- 发明人: Tao Zhang , Mingyuan Zheng , Aiqin Wang , Na Ji , Jifeng Pang , Zhijun Tai , Likun Zhou , Jingguang Chen , Xiaodong Wang
- 申请人: Tao Zhang , Mingyuan Zheng , Aiqin Wang , Na Ji , Jifeng Pang , Zhijun Tai , Likun Zhou , Jingguang Chen , Xiaodong Wang
- 申请人地址: CN Dalian
- 专利权人: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- 当前专利权人: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- 当前专利权人地址: CN Dalian
- 代理机构: Matthias Scholl P.C.
- 代理商 Matthias Scholl
- 优先权: CN200810229065 20081126
- 主分类号: C07C29/132
- IPC分类号: C07C29/132 ; C07C29/60
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 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.