METHOD FOR PREPARING HIGH PURITY ISOBUTENE USING GLYCOLETHER
    1.
    发明公开
    METHOD FOR PREPARING HIGH PURITY ISOBUTENE USING GLYCOLETHER 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON HOCHREINEM ISOBUTEN UNTER VERWENDUNG VON GLYCOLETHER

    公开(公告)号:EP2684858A4

    公开(公告)日:2015-11-11

    申请号:EP12746570

    申请日:2012-02-17

    申请人: DAELIM IND CO LTD

    IPC分类号: C07C11/09 C07B37/06 C07C43/03

    摘要: Disclosed is a method of preparing isobutene in which high-purity isobutene is separated (prepared) from a C 4 mixture by cracking glycol ether prepared from a C 4 mixture (in particular, C 4 raffinate-1) containing isobutene and a glycol. The method includes cracking glycol ether into isobutene and glycol at a temperature between 50°C and 300°C in the presence of a strongly acidic catalyst. The glycol ether may be prepared by reaction between a C 4 mixture containing isobutene and glycol in the presence of an acid catalyst.

    摘要翻译: 公开了一种制备异丁烯的方法,其中通过由含有异丁烯和二醇的C 4混合物(特别是C 4萃余液-1)制备的二醇醚裂化,从C 4混合物中分离(制备)高纯度异丁烯。 该方法包括在强酸性催化剂存在下,在50℃至300℃的温度下将乙二醇醚裂化成异丁烯和二醇。 乙二醇醚可以通过在酸催化剂存在下在含有异丁烯和二醇的C 4混合物之间进行反应来制备。