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    Isomerization of vinyl glycols to unsaturated diols
    11.
    发明授权
    Isomerization of vinyl glycols to unsaturated diols 失效
    乙烯基二醇异构化为不饱和二元醇

    公开(公告)号：US5811601A

    公开(公告)日：1998-09-22

    申请号：US689428

    申请日：1996-08-09

    申请人： Thomas J. Remans ,  Pierre A. Jacobs ,  Johan Martens ,  Dominicus A. G. van Oeffelen ,  Mathias H. G. Steijns

    发明人： Thomas J. Remans ,  Pierre A. Jacobs ,  Johan Martens ,  Dominicus A. G. van Oeffelen ,  Mathias H. G. Steijns

    IPC分类号： B01J23/36 ,  B01J29/16 ,  C07C29/56 ,  C07C33/035 ,  C07C33/025 ,  C07C31/20 ,  C07C33/03

    CPC分类号： B01J29/166 ,  C07C29/56

    摘要： This invention relates to a process for the isomerization of a vinyl glycol to an unsaturated diol in the presence of a rhenium-based catalyst; and to a catalyst for said isomerization. More specifically, this invention relates to the isomerization of 3-butene-1,2-diol to 2-butene-1,4-diol; and to a process for the manufacture of 1,4-butanediol involving the step of isomerizing 3-butene-1,2-diol to 2-butene-1,4-diol in the presence of said catalyst. The catalyst is characterized in that it comprises a transition metal on a carrier wherein the carrier is a zeolite Y type substance containing silicon and aluminum in a mole ratio of from about 1.5:1 to about 1000:1, and the transition metal is rhenium or a rhenium compound and mixtures thereof present in an amount of from about 0.1 to about 50 weight percent based on total combined weight of the carrier and of the rhenium or rhenium compound and mixtures thereof.

    摘要翻译： 本发明涉及一种在铼基催化剂存在下乙烯基二醇异构化为不饱和二醇的方法; 和用于所述异构化的催化剂。 更具体地说，本发明涉及3-丁烯-1,2-二醇异构化成2-丁烯-1,4-二醇; 以及涉及在所述催化剂存在下将3-丁烯-1,2-二醇异构化为2-丁烯-1,4-二醇的步骤的1,4-丁二醇的制造方法。 催化剂的特征在于其在载体上包含过渡金属，其中载体是含有摩尔比为约1.5:1至约1000:1的硅和铝的沸石Y型物质，过渡金属为铼或 铼化合物及其混合物的存在量为约0.1至约50重量％，基于载体和铼或铼化合物及其混合物的总重量。