基本信息:
- 专利标题: PROCESS FOR THE PREPARATION OF ALKANEDIOL
- 专利标题(中):制备阿尔卡尼醇的方法
- 申请号:PCT/EP2004/050480 申请日:2004-04-07
- 公开(公告)号:WO2004089866A1 公开(公告)日:2004-10-21
- 发明人: HARMSEN, Gerrit, Jan , VAN DER HEIDE, Evert , VROUWENVELDER, Cornelis, Leonardus, Maria
- 申请人: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. , HARMSEN, Gerrit, Jan , VAN DER HEIDE, Evert , VROUWENVELDER, Cornelis, Leonardus, Maria
- 申请人地址: Carel van Bylandtlaan 30, NL-2596 HR The Hague NL
- 专利权人: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.,HARMSEN, Gerrit, Jan,VAN DER HEIDE, Evert,VROUWENVELDER, Cornelis, Leonardus, Maria
- 当前专利权人: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.,HARMSEN, Gerrit, Jan,VAN DER HEIDE, Evert,VROUWENVELDER, Cornelis, Leonardus, Maria
- 当前专利权人地址: Carel van Bylandtlaan 30, NL-2596 HR The Hague NL
- 优先权: EP03252261.7 20030409
- 主分类号: C07C68/06
- IPC分类号: C07C68/06
摘要:
Process for the preparation of alkanediol, which process comprises (a) contacting alkylene oxide with carbon dioxide in the presence of catalyst to obtain a first liquid reaction mixture containing cyclic carbonate, (b) optionally removing carbon dioxide and/or alkylene oxide, (c) increasing the pressure of the liquid reaction mixture obtained in step (a) and/or (b), (d) contacting the pressurized first reaction mixture obtained in step (c) with water in the presence of catalyst to obtain a second reaction mixture containing alkanediol and carbon dioxide, (e) separating the second reaction mixture into a liquid effluent and a gaseous effluent containing carbon dioxide, and (f) recycling at least part of the gaseous effluent containing carbon dioxide to step (a), in which process the pressure in step (d) is higher than the pressure in step (a).
摘要(中):
用于制备链烷二醇的方法,该方法包括(a)在催化剂存在下使环氧烷与二氧化碳接触以获得含有环状碳酸酯的第一液体反应混合物,(b)任选地除去二氧化碳和/或氧化烯,(c )增加步骤(a)和/或(b)中获得的液体反应混合物的压力,(d)在催化剂存在下使步骤(c)中获得的加压第一反应混合物与水接触,得到第二反应混合物 (e)将第二反应混合物分离成液体流出物和含二氧化碳的气态流出物,和(f)将至少部分含有二氧化碳的气态流出物再循环到步骤(a)中,其中在该过程中 步骤(d)中的压力高于步骤(a)中的压力。