Preparation of C.sub.2 -C.sub.4 -olefins from methanol/dimethyl ether
    4.
    发明授权
    Preparation of C.sub.2 -C.sub.4 -olefins from methanol/dimethyl ether 失效
    从甲醇/二甲醚制备C 2 -C 4烯烃

    公开(公告)号:US4503281A

    公开(公告)日:1985-03-05

    申请号:US577762

    申请日:1984-02-07

    IPC分类号: B01J29/86 C07C1/20

    摘要: C.sub.2 -C.sub.4 -olefins are prepared by catalytic conversion of methanol and/or dimethyl ether in the presence of a zeolite catalyst at elevated temperatures, by a process in which the catalyst used is a pure borosilicate zeolite which has been tableted or extruded without a binder and treated with hydrofluoric acid and hydrochloric acid. The treatment of the catalyst with hydrofluoric acid is carried out using 0.001-1N HF, and that with hydrochloric acid is carried out using 3-25% strength acid. The time-on-stream of the catalyst is improved.

    摘要翻译: 通过在沸石催化剂存在下在高温下通过甲醇和/或二甲醚的催化转化制备C 2 -C 4 - 烯烃,其中使用的催化剂是纯硼硅酸盐沸石,其已被压片或挤出而没有粘合剂 并用氢氟酸和盐酸处理。 用氢氟酸处理催化剂使用0.001-1N HF进行催化剂,盐酸使用3-25%强度的酸进行。 提高了催化剂的时间流动性。