Method for producing nitrogen trifluoride by gas-solid reaction
    1.
    发明授权
    Method for producing nitrogen trifluoride by gas-solid reaction 失效
    通过气 - 固反应制备三氟化氮的方法

    公开(公告)号:US06183713B2

    公开(公告)日:2001-02-06

    申请号:US09315406

    申请日:1999-05-20

    IPC分类号: C01B2106

    CPC分类号: C01B21/0832

    摘要: The invention relates to a method for producing nitrogen trifluoride by gas-solid reaction. This method includes the steps of (a) providing a packed-bed-type vessel filled with a particulate solid of an ammonium complex of a metal fluoride; (b) introducing a fluorine-containing gas into the vessel to allow the fluorine-containing gas to flow upwardly through the vessel such that fluorine of the fluorine-containing gas is reacted with the particulate solid in the vessel, thereby to obtain a reaction gas containing nitrogen trifluoride; and (c) separating the nitrogen trifluoride from the reaction gas. A part of the reaction gas flowing out of the vessel may be introduced into the vessel, and thereby circulated through the vessel. The yield of nitrogen trifluoride becomes substantially improved by this method.

    摘要翻译: 本发明涉及一种通过气 - 固反应生产三氟化氮的方法。 该方法包括以下步骤:(a)提供填充有金属氟化物的铵络合物的颗粒状固体的填充床型容器; (b)向容器中引入含氟气体,使含氟气体向上流过容器,使得含氟气体的氟与容器中的颗粒状固体反应,从而获得反应气体 含有三氟化氮; 和(c)从反应气体中分离出三氟化氮。 从容器流出的反应气体的一部分可以引入容器中,从而循环通过容器。 通过该方法,三氟化氮的收率大大提高。

    Method of producing ultrafine particles of graphite fluoride
    2.
    发明授权
    Method of producing ultrafine particles of graphite fluoride 失效
    生产氟化石墨超细颗粒的方法

    公开(公告)号:US4859444A

    公开(公告)日:1989-08-22

    申请号:US160775

    申请日:1988-02-26

    IPC分类号: C01B31/04 C01B31/00 C09K3/18

    摘要: Graphite fluoride in the form of submicron particles is easily obtained at high yield by using, exclusively, acetylene black as the carbon material to be fluorinated with fluorine gas. Use of any other type of carbon black does not give comparable results. Graphite fluoride produced from acetylene black is superior in dispersibility.

    摘要翻译: 通过仅使用乙炔黑作为被氟化氟化的碳材料,容易以高产率获得亚微米颗粒形式的石墨氟化物。 使用任何其他类型的炭黑不能给出可比的结果。 由乙炔黑生产的石墨氟分散性优异。