Preparation of unsaturated-hydrocarbyl coumaryl ethers
    49.
    发明授权
    Preparation of unsaturated-hydrocarbyl coumaryl ethers 失效
    不饱和烃基芳香醚的制备

    公开(公告)号:US3928388A

    公开(公告)日:1975-12-23

    申请号:US42698273

    申请日:1973-12-20

    摘要: Unsaturated-hydrocarbyl coumaryl ethers are prepared from the reaction of unsaturated-hydrocarbyl hydroxyaryl ethers with ethylenic compounds in the presence of an atmosphere comprising an oxygen-containing gas and a catalyst system comprising a metal or metal salt independently selected from Group VIII of the Periodic Table.

    摘要翻译: 不饱和烃基芳香醚是由不饱和烃基羟基芳基醚与烯属化合物在包含含氧气体和包含独立地选自元素周期表第Ⅷ族的金属或金属盐的气氛存在下反应制备的 。

    Catalysts
    50.
    发明授权

    公开(公告)号:US3925253A

    公开(公告)日:1975-12-09

    申请号:US34278773

    申请日:1973-03-19

    申请人: ETHYL CORP

    发明人: STEPHENS RUTH E

    摘要: Disclosed herein is an attrition resistant catalyst support comprising a carrier such as alumina coated with a silica coating which contains a rare earth metal oxide, and optionally alumina, such that the atom ratio of rare earth metal to silicon to aluminum in the coating is 1:0.1-2.0:0-20. A catalytic metal oxide such as copper oxide or manganese oxide may be included in the coating or added later in an amount such that the atom ratio of catalytic metal to rare earth metal to silicon to aluminum in the coating is 0.6-1.5:1:0.1-2.0:0-20. The final catalyst may be promoted with a small amount of a noble metal such as palladium to improve low temperature activity.