ZSM-5 zeolites having uniformly large crystals
    1.
    发明授权
    ZSM-5 zeolites having uniformly large crystals 失效
    具有均匀大晶体的ZSM-5沸石

    公开(公告)号:US4908342A

    公开(公告)日:1990-03-13

    申请号:US018747

    申请日:1987-03-03

    摘要: There is provided an improvement for making large crystallite ZSM-5 zeolites by a method comprising forming the zeolite in a medium containing a combination of tetramethylammonium and tetrapropylammonium cations. The improvement involves the addition of sodium chloride to the aqueous reaction medium to increase the uniformity of crystallite size and to increase the mean crystallite size. Also provided are catalysts comprising these ZSM-5 crystallites and processes for converting organic compounds with these catalysts.

    摘要翻译: 通过包括在含有四甲基铵和四丙基铵阳离子的组合的介质中形成沸石的方法,提供了制备大型微晶ZSM-5沸石的改进。 改进之处在于向水性反应介质中加入氯化钠以增加微晶尺寸的均匀性并增加平均微晶尺寸。 还提供了包含这些ZSM-5微晶的催化剂和用这些催化剂转化有机化合物的方法。