Process for working up reaction gases during the oxidation HCI to chlorine
    1.
    发明授权
    Process for working up reaction gases during the oxidation HCI to chlorine 失效
    在将HCl氧化成氯气期间加工反应气体的过程

    公开(公告)号:US06387345B1

    公开(公告)日:2002-05-14

    申请号:US08715037

    申请日:1996-09-17

    IPC分类号: C01B704

    摘要: In the process for working up the reaction gas consisting of chlorine, hydrogen chloride, oxygen and water vapour produced in a chlorine reactor, the reaction gas leaving the reactor 1 is first cooled until the water of reaction and hydrogen chloride condense in the form of concentrated hydrochloric acid. The concentrated hydrochloric acid is then separated from the reaction gas in a phase separation column 3 and discharged. The remaining reaction gas, from which the substantial proportion of the water and a proportion of the hydrogen chloride has been removed, is then post-dried in a drying tower 6. The post-dried reaction gas consisting of chlorine, oxygen and hydrogen chloride is then compressed to 1 to 30 bar by a compressor 7. In the subsequent stage, the compressed reaction gas is passed through a cooled chlorine recuperator 8, wherein the chlorine is very largely liquefied. Finally, the components of the reaction gas which could not be condensed in the chlorine recuperator 8 are at least partially returned to the reactor 1.

    摘要翻译: 在氯反应器中产生的由氯,氯化氢,氧气和水蒸汽组成的反应气体的处理过程中,首先将离开反应器1的反应气体冷却直到反应水和氯化氢浓缩为浓缩 盐酸。 然后在相分离塔3中将浓盐酸与反应气体分离并排出。 然后将剩余的大部分水和一部分氯化氢除去的剩余反应气体在干燥塔6中进行后干燥。由氯,氧和氯化氢组成的后干燥反应气体是 然后通过压缩机7压缩至1至30巴。在随后的阶段,压缩的反应气体通过冷却的氯气换热器8,其中氯很大程度上是液化的。 最后,在氯气换热器8中不能冷凝的反应气体的组分至少部分地返回到反应器1。

    Process and apparatus for electrolysis of hydrochloric acid
    8.
    发明授权
    Process and apparatus for electrolysis of hydrochloric acid 失效
    盐酸电解工艺及装置

    公开(公告)号:US4236983A

    公开(公告)日:1980-12-02

    申请号:US24748

    申请日:1979-03-28

    CPC分类号: C25B1/26

    摘要: In the production of chlorine and hydrogen from hydrochloric acid by electrolysis in an electrolysis cell comprising a plurality of vertically arranged bipolar electrodes, a diaphragm arranged between each two electrodes to divide the electrolysis chambers formed between them into an anolyte chamber and a catholyte chamber, and outlet and inlet devices for the electrolyte, the improvement which comprises electrolyzing the hydrochloric acid in at least two successive stages, and degassing the hydrochloric acid. Advantageously the hydrochloric acid moves from bottom to top, first through an upper stage and then through a lower stage. As a result less electrode surface is needed, a higher current density and/or voltage is possible so existing apparatus can be modified to connect more bipolar electrodes in series.

    摘要翻译: 在由包括多个垂直排列的双极电极的电解槽中通过电解生产氯和氢气中的隔膜,设置在每两个电极之间的隔膜将其间形成的电解室分成阳极电解液室和阴极电解液室,以及 用于电解质的出口和入口装置,其改进包括至少两个阶段电解盐酸,并对盐酸进行脱气。 有利地,盐酸从底部移动到顶部,首先通过上段然后通过下段。 因此,需要更少的电极表面,因此可以改变更高的电流密度和/或电压,因此可以修改现有的装置以串联更多的双极电极。

    Process for performing HCl-membrane electrolysis
    9.
    发明授权
    Process for performing HCl-membrane electrolysis 失效
    进行HCl膜电解的方法

    公开(公告)号:US4725341A

    公开(公告)日:1988-02-16

    申请号:US2843

    申请日:1987-01-13

    申请人: Franz-Rudolf Minz

    发明人: Franz-Rudolf Minz

    IPC分类号: C25B1/02 C25B1/26 C25B15/08

    CPC分类号: C25B1/26

    摘要: A process for conducting HCl membrane electrolysis to produce H.sub.2 and Cl.sub.2 from an electrolyte cell comprising a cathode compartment and an anode compartment separated by a membrane comprising feeding a first stream of hydrochloric acid into an inlet of the cathode compartment, withdrawing a second stream of hydrochloric acid from an outlet of the cathode compartment withdrawing a third stream of hydrochloric acid from an outlet of the anode compartment, feeding a fourth stream of hydrochloric aicd into an inlet of the anode compartment, and feeding at least a portion of the second stream into the inlet of the anode compartment.

    摘要翻译: 一种用于进行HCl膜电解以从电解质电池产生H 2和Cl 2的方法,该电解质电池包括由膜分离的阴极室和阳极室,包括将第一盐酸盐进料到阴极室的入口,取出第二流的盐酸 来自阴极室的出口的酸从阳极室的出口排出第三流的盐酸,将第四盐酸流输送到阳极室的入口,并将第二流的至少一部分进料到 阳极室的入口。