Method for production of aromatic fluorine compound

    公开(公告)号:US20020035301A1

    公开(公告)日:2002-03-21

    申请号:US09941826

    申请日:2001-08-29

    Inventor: Kouichi Hirota

    Abstract: A method for efficiently extracting a reaction product containing a target aromatic fluorine compound formed by the halogen exchange reaction of an aromatic chlorine compound with a fluorinating agent quickly from the reaction vessel without suffering part of the reaction product to remain as a residue inside the reaction vessel is disclosed. Specifically, the reaction product is extracted from the reactor subsequently to the halogen exchange reaction at a temperature in the range of 20-250null C. By this method, the reaction product formed in consequence of the halogen exchange reaction can be efficiently extracted quickly from the reaction vessel, and that without suffering occurrence of a residue of the reaction product.

    Catalytic preparation of nitroalkanes
    30.
    发明授权
    Catalytic preparation of nitroalkanes 失效
    催化制备硝基烷烃

    公开(公告)号:US4431842A

    公开(公告)日:1984-02-14

    申请号:US446076

    申请日:1982-12-01

    Inventor: William V. Hayes

    CPC classification number: C07C201/10

    Abstract: A process of making nitroalkanes which comprises reacting a lower alkanol, e.g. methanol, and nitric acid (HNO.sub.3) in the vapor phase in the presence of a catalyst which is an oxide or a salt of a metal of Group II of the periodic table, e.g. calcium chloride.

    Abstract translation: 制备硝基烷烃的方法,其包括使低级链烷醇如 甲醇和硝酸(HNO 3)在催化剂存在下的气相中,该催化剂是周期表第II族金属的氧化物或盐。 氯化钙。

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