Process for the preparation of a catalyst capable of promoting the
oxidative conversion of methane into higher hydrocarbons and use of
catalyst
    4.
    发明授权
    Process for the preparation of a catalyst capable of promoting the oxidative conversion of methane into higher hydrocarbons and use of catalyst 失效
    制备可促进甲烷氧化转化为高碳氢化合物和使用催化剂的催化剂的方法

    公开(公告)号:US5061670A

    公开(公告)日:1991-10-29

    申请号:US460961

    申请日:1990-02-23

    CPC分类号: B01J27/232 Y10S585/943

    摘要: A process is provided for the preparation of a catalyst which is particualrly active and selective in the oxidative conversion of methane into higher hydrocarbons and especially into C.sub.2.sup.+ hydrocarbons.In the process, an aqueous phase containing in solution cations of at least one metal of the lanthanide group and cations of at least one alkaline-earth metal, is brought into contact with a sufficient quantity of a source of carbonate ions or hydroxide ions to form a coprecipitate of carbonates and/or of hydroxycarbonates of the metals, the pH of the resulting reaction medium is brought to a value higher than 8, a coprecipitate is separated from the reaction medium, subjected to a washing operation, then to a drying operation and the washed and dried coprecipitate is subjected to calcination.

    摘要翻译: PCT No.PCT / FR89 / 00332 Sec。 371日期1990年2月23日 102(e)1990年2月23日PCT PCT。 WO90 / 00086 PCT出版物 日期1990年1月11日。提供了一种制备催化剂的方法,所述催化剂在将甲烷氧化转化成高级烃,特别是进入C2 +烃的过程中具有特别的活性和选择性。 在该方法中,将包含至少一种镧系元素金属的溶液阳离子和至少一种碱土金属的阳离子的水相与足够量的碳酸根离子或氢氧根离子源接触以形成 碳酸盐和/或金属的羟基碳酸盐的共沉淀物,使得到的反应介质的pH达到高于8的值,从反应介质中分离出共沉淀物,进行洗涤操作,然后进行干燥操作, 将经洗涤和干燥的共沉淀物进行煅烧。