Process for the production of chlorine dioxide
    1.
    发明授权
    Process for the production of chlorine dioxide 失效
    二氧化氯生产工艺

    公开(公告)号:US5545389A

    公开(公告)日:1996-08-13

    申请号:US304430

    申请日:1994-09-12

    IPC分类号: C01B11/02 C25B1/26

    CPC分类号: C01B11/026

    摘要: A process for the production of chlorine dioxide by reacting at least one of chloric acid and an alkali metal chlorate, and hydrogen peroxide as the reducing agent in such proportions that chlorine dioxide is produced in a reaction medium. A mixture comprising chlorine dioxide and oxygen is withdrawn from the reaction medium. Urea and/or one or more phosphonic acid based complexing agents are added to the reaction medium. The stabilizer is added in an amount of 0.01-5 weight % and serves to increase the reaction rate.

    摘要翻译: 通过使氯酸和碱金属氯酸盐中的至少一种和作为还原剂的过氧化氢中的至少一种与在反应介质中产生二氧化氯的比例反应来生产二氧化氯的方法。 将包含二氧化氯和氧气的混合物从反应介质中排出。 将尿素和/或一种或多种基于膦酸的络合剂加入到反应介质中。 稳定剂的添加量为0.01-5重量%,用于提高反应速率。

    Process for the production of chlorine dioxide
    2.
    发明授权
    Process for the production of chlorine dioxide 失效
    二氧化氯生产工艺

    公开(公告)号:US5273733A

    公开(公告)日:1993-12-28

    申请号:US895720

    申请日:1992-06-09

    IPC分类号: C01B11/02 C25B1/26

    CPC分类号: C01B11/026

    摘要: A process for the production of chlorine dioxide by reacting at least one of chloric acid and an alkali metal chlorate, and hydrogen peroxide as the reducing agent in such proportions that chlorine dioxide is produced in a reaction medium. A mixture comprising chlorine dioxide and oxygen is withdrawn from the reaction medium. Urea and/or one or more phosphonic acid based complexing agents are added to the reaction medium. The stabilizer is added in an amount of 0.01-5 weight % and serves to increase the reaction rate.

    摘要翻译: 通过使氯酸和碱金属氯酸盐中的至少一种和作为还原剂的过氧化氢中的至少一种与在反应介质中产生二氧化氯的比例反应来生产二氧化氯的方法。 将包含二氧化氯和氧气的混合物从反应介质中排出。 将尿素和/或一种或多种基于膦酸的络合剂加入到反应介质中。 稳定剂的添加量为0.01-5重量%,用于提高反应速率。

    Plug flow process for the production of chlorine dioxide
    4.
    发明授权
    Plug flow process for the production of chlorine dioxide 失效
    堵塞流程用于生产二氧化氯

    公开(公告)号:US5376350A

    公开(公告)日:1994-12-27

    申请号:US988676

    申请日:1992-12-10

    IPC分类号: C01B11/02

    CPC分类号: C01B11/026

    摘要: A plug flow process for the production of chlorine dioxide by reacting chloric acid and/or an alkali metal chlorate, optionally a mineral acid and a reducing agent in such proportions that chlorine dioxide is produced. Reactants are continuously fed to a plug flow reactor under conditions that chloride dioxide is produced as the reactants flow through the reactor. The process stream has an acidity between 2N and 11N. The process stream is subjected to superatmospheric pressure in the reactor sufficient to maintain the formed chlorine dioxide in solution. After removal of the chlorine dioxide from the process stream exiting the plug flow reactor, the process stream can optionally be fed to a second chlorine dioxide generator for further reaction.

    摘要翻译: 用于通过使氯酸和/或碱金属氯酸盐,任选的无机酸和还原剂以产生二氧化氯的比例反应来生产二氧化氯的活塞流法。 在反应物流过反应器时产生二氧化氯的条件下,将反应物连续供入活塞流反应器。 工艺流的酸度在2N和11N之间。 工艺物流在反应器中经受超大气压,足以将形成的二氧化氯保持在溶液中。 从离开活塞流反应器的工艺物流中除去二氧化氯后,工艺流可以任选地进料到第二个二氧化氯发生器进一步反应。