Process for preparing tin tetrachloride
    4.
    发明授权
    Process for preparing tin tetrachloride 失效
    四氯化锡的制备方法

    公开(公告)号:US6001323A

    公开(公告)日:1999-12-14

    申请号:US139204

    申请日:1998-08-24

    IPC分类号: B01J8/20 C01G19/08 C01B9/02

    CPC分类号: C01G19/08 B01J8/20

    摘要: The preparation of tin tetrachloride from tin granules and chlorine can be conducted safely even at high temperatures if the chlorine, before coming into contact with the tin, is brought into a highly disperse distribution in the circulating tin tetrachloride and develops a uniform flow profile.

    摘要翻译: 如果在与锡接触之前,氯在四氯化碳循环中形成高度分散的分布,并且形成均匀的流动分布,则即使在高温下也可以安全地进行锡颗粒和氯的四氯化锡的制备。

    Process for the production of aqueous solutions of sodium chloride from
rock salt
    5.
    发明授权
    Process for the production of aqueous solutions of sodium chloride from rock salt 失效
    从盐岩生产氯化钠水溶液的方法

    公开(公告)号:US4343621A

    公开(公告)日:1982-08-10

    申请号:US240317

    申请日:1981-03-04

    IPC分类号: B01F1/00 C01D3/08 B01J8/02

    摘要: The invention relates to an open dissolving chamber for rock salt and to a process for the production, free from vapors, of concentrated, aqueous sodium chloride crude brine by continuously dissolving rock salt in this dissolving chamber. The dissolving chamber contains a heap of rock salt with which the brine which is unsaturated in respect of salt comes into contact. The brine thereby becomes saturated with sodium chloride and then passes out of the dissolving chamber. In the present process, the unsaturated brine enters at the base of the dissolving chamber. The saturated crude brine is removed from the rock salt through at least one vertical or inclined screen which largely holds back suspended rock salt particles. The liquid level of the saturated crude brine in the dissolving chamber should not reach the surface of the heap of rock salt, and the side of the screen facing the interior of the dissolving chamber should be completely covered with a mixture of saturated crude brine and rock salt.

    摘要翻译: 本发明涉及一种用于岩盐的开放溶解室,以及通过将岩盐连续地溶解在该溶解室中而产生浓缩的氯化钠水溶液的蒸气的方法。 溶解室含有一堆岩盐,与盐不饱和的盐水接触。 盐水因此被氯化钠饱和,然后从溶解室中流出。 在本方法中,不饱和盐水进入溶解室的底部。 饱和的粗盐水通过至少一个垂直或倾斜的筛网从岩盐中除去,其大大阻碍悬浮的岩盐颗粒。 溶解室中的饱和粗盐水的液面不应到达岩盐堆的表面,屏面朝向溶解室内部的一侧应完全用饱和粗盐水和岩石混合物覆盖 盐。

    Process for reducing losses of mercury in alkali metal chloride
electrolysis
    7.
    发明授权
    Process for reducing losses of mercury in alkali metal chloride electrolysis 失效
    降低碱金属氯化物电解汞损失的方法

    公开(公告)号:US4212715A

    公开(公告)日:1980-07-15

    申请号:US20086

    申请日:1979-03-13

    IPC分类号: C25B1/36 C25B15/08

    CPC分类号: C25B15/08 C25B1/36

    摘要: Brine (an aqueous solution of alkali metal chlorine) which is electrolyzed according to the amalgamation process, generally contains small amounts of mercury. It has been found that these traces of mercury are entrained with the evaporated water in a considerable amount when applying evaporation cooling to the brine. In order to keep these losses as low as possible, a pH of from 7 to 9.0 and a redox potential more than 1391-6.66(pH)-5.94(pH).sup.2 but not more than 1100 mV (based on the potential of the hydrogen electrode) is adjusted by adding chlorine or alkali metal hypochlorite and optionally alkali metal hydroxide to the brine.

    摘要翻译: 根据合并方法电解的盐水(碱金属氯的水溶液)通常含有少量的汞。 已经发现,当向盐水施加蒸发冷却时,这些痕量的汞被大量的蒸发的水夹带。 为了保持这些损失尽可能低,pH为7至9.0,氧化还原电位大于1391-6.66(pH)-5.94(pH)2但不大于1100mV(基于氢的电位 电极)通过向盐水中加入氯或碱金属次氯酸盐和任选的碱金属氢氧化物来调节。

    Apparatus for the production of aqueous solutions of sodium chloride
from rock salt
    9.
    发明授权
    Apparatus for the production of aqueous solutions of sodium chloride from rock salt 失效
    用于从岩盐生产氯化钠水溶液的装置

    公开(公告)号:US4379125A

    公开(公告)日:1983-04-05

    申请号:US356167

    申请日:1982-03-08

    IPC分类号: B01F1/00 C01D3/08 B01D11/02

    摘要: The invention relates to an open dissolving chamber for rock salt and to an apparatus for the production, free from vapors, of concentrated, aqueous sodium chloride crude brine by continuously dissolving rock salt in this dissolving chamber. The dissolving chamber contains a heap of rock salt with which the brine which is unsaturated in respect of salt comes into contact. The brine thereby becomes saturated with sodium chloride and then passes out of the dissolving chamber. In the present apparatus, the unsaturated brine enters at the base of the dissolving chamber. The saturated crude brine is removed from the rock salt through at least one vertical or inclined screen which largely holds back suspended rock salt particles. The liquid level of the saturated crude brine in the dissolving chamber should not reach the surface of the heap of rock salt, and the side of the screen facing the interior of the dissolving chamber should be completely covered with a mixture of saturated crude brine and rock salt.

    摘要翻译: 本发明涉及一种用于岩盐的开放溶解室以及通过将岩盐连续地溶解在该溶解室中而产生浓缩的氯化钠水溶液的蒸气的装置。 溶解室含有一堆岩盐,与盐不饱和的盐水接触。 盐水用氯化钠饱和,然后从溶解室中流出。 在本装置中,不饱和盐水进入溶解室的底部。 饱和的粗盐水通过至少一个垂直或倾斜的筛网从岩盐中除去,其大大阻碍悬浮的岩盐颗粒。 溶解室中的饱和粗盐水的液面不应到达岩盐堆的表面,屏面朝向溶解室内部的一侧应完全用饱和粗盐水和岩石混合物覆盖 盐。