Method in the production of hydrogen peroxide
    1.
    发明授权
    Method in the production of hydrogen peroxide 失效
    生产过氧化氢的方法

    公开(公告)号:US4503028A

    公开(公告)日:1985-03-05

    申请号:US428435

    申请日:1982-09-29

    IPC分类号: C01B15/023 C01B21/096

    CPC分类号: C01B21/096 C01B15/023

    摘要: A method in the production of hydrogen peroxide by the anthraquinone process is described, in which method anthraquinone derivatives dissolved in a working solution are subjected alternatingly to hydrogenation and oxidation. To reduce the relative moisture in the working solution to a suitable level of 20-98%, preferably 40-85%, the working solution is dried prior to hydrogenation by contacting it with a gas or a gaseous mixture, the water vapor pressure of which is below that of the working solution. Suitable gases or gas mixtures are air or exhaust gases from the oxidation stage of the anthraquinone process.

    摘要翻译: 描述了通过蒽醌法生产过氧化氢的方法,其中溶解在工作溶液中的蒽醌衍生物交替进行氢化和氧化。 为了将工作溶液中的相对湿度降低到合适的20-98%,优选40-85%的水平,在氢化之前将工作溶液与气体或气体混合物接触,将其工作的水蒸汽压力 低于工作解决方案。 合适的气体或气体混合物是来自蒽醌方法的氧化阶段的空气或废气。

    Process for the preparation of sulfamic acid
    2.
    发明授权
    Process for the preparation of sulfamic acid 失效
    制备氨基磺酸的方法

    公开(公告)号:US4386060A

    公开(公告)日:1983-05-31

    申请号:US343831

    申请日:1982-01-29

    IPC分类号: C01B21/096 C01B17/00

    CPC分类号: C01B21/096

    摘要: Processes for the production of sulfamic acid by the reaction of urea, sulfuric anhydride, and sulfuric acid in (1) a two-stage process wherein the sulfuric anhydride used in the first stage at a temperature less than 50.degree. C. is dissolved in a halogenated fluorocarbon or a mixture of halogenated fluorocarbons having a boiling point of from 0.degree. to 50.degree. C. or (2) in a one-stage process at 60.degree. to 100.degree. C. with the sulfuric anhydride dissolved in a halogenated fluorocarbon or a mixture of halogenated fluorocarbons having a boiling point below 100.degree. C. at atmospheric pressure, the halogenated fluorocarbon serving to remove the heat generated by the exothermic formation of the sulfamic acid from the original reactants.

    摘要翻译: 在(1)两阶段方法中通过尿素,硫酸酐和硫酸的反应生产氨基磺酸的方法,其中将第一阶段在低于50℃的温度下使用的硫酸酐溶于 卤代碳氟化合物或沸点为0〜50℃的卤代碳氟化合物的混合物,或者(2)在60-100℃的一步法中与硫酸酐溶解在卤代碳氟化合物或 在大气压下沸点低于100℃的卤代碳氟化合物的混合物,用于去除由原始反应物引起的氨基磺酸的放热形成产生的热量的卤代碳氟化合物。

    Process for the manufacture of ammonium sulfamate
    3.
    发明授权
    Process for the manufacture of ammonium sulfamate 失效
    制备氨基磺酸铵的方法

    公开(公告)号:US4261963A

    公开(公告)日:1981-04-14

    申请号:US96547

    申请日:1979-11-21

    申请人: Gerhard Munster

    发明人: Gerhard Munster

    CPC分类号: C01B21/096

    摘要: A process for the manufacture of ammonium sulfamate by introducing under pressure ammonia and sulfur trioxide into a reactor containing a melt which mainly consists of ammonium sulfamate and ammonium imidodisulfonate, while maintaining a molar ratio of NH.sub.3 /SO.sub.3 of from 1.5 to 1 to 2.0:1, which comprises introducing sulfur trioxide into the gas phase above the melt.

    摘要翻译: 通过在压力下将氨和三氧化硫引入到主要由氨基磺酸铵和亚氨基二磺酸铵组成的熔体的反应器中,同时保持NH 3 / SO 3的摩尔比为1.5至1:2.0:1,制备氨基磺酸铵的方法 其包括将三氧化硫引入熔体上方的气相中。