Method for preparation of an improved K-A type zeolite and for
separation by adsorption polar and non-polar molecules
    1.
    发明授权
    Method for preparation of an improved K-A type zeolite and for separation by adsorption polar and non-polar molecules 失效
    用于制备改进的K-A型沸石并通过吸附极性和非极性分子进行分离的方法

    公开(公告)号:US3982912A

    公开(公告)日:1976-09-28

    申请号:US467123

    申请日:1974-05-06

    摘要: A novel type of zeolite is obtained by replacing ion-exchangeable active cations in A-type zeolite with potassium ions and divalent cations at 33.3 to 83.3% and 16.7 to 66.7%, respectively to combine into the total of 100%. This zeolite is effective for separation of a mixture consisting of non-polar molecules and polar molecules having the adsorption effective cross-section less than 5 A. For instance, monosilane and phosphine, both of which are adsorbed by the conventional Ca--A type zeolite, can be separated by the novel K--A type zeolite which adsorbs phosphine.

    摘要翻译: 通过将A型沸石中的离子交换活性阳离子与钾离子和二价阳离子分别替换为33.3〜83.3%和16.7〜66.7%,得到新型沸石,合并为100%。 该沸石对于分离具有吸附有效截面小于5A的非极性分子和极性分子的混合物是有效的。例如,三硅烷和膦都被常规Ca-A型沸石吸附 ,可以通过吸附磷化氢的新型KA型沸石分离。