Concentration process by multistage, multiple effect evaporator
    2.
    发明授权
    Concentration process by multistage, multiple effect evaporator 失效
    浓缩过程采用多级,多效蒸发器

    公开(公告)号:US4132588A

    公开(公告)日:1979-01-02

    申请号:US764471

    申请日:1977-01-31

    申请人: Shinsaku Ogawa

    发明人: Shinsaku Ogawa

    IPC分类号: B01D1/26 C01D1/42

    CPC分类号: B01D1/26 C01D1/42

    摘要: A method and apparatus in which the effects in multiple effect evaporation systems are separated into successive stages and the vapors in the stages of one effect are utilized as a heat source for the liquid in stages of a subsequent effect.

    摘要翻译: 一种方法和装置,其中多效蒸发系统的效果被分成连续的阶段,并且在一个效应的阶段中的蒸气被用作液体的热源,在后续的效果阶段。

    Electrolysis
    4.
    发明授权
    Electrolysis 失效
    电解

    公开(公告)号:US4108742A

    公开(公告)日:1978-08-22

    申请号:US771978

    申请日:1977-02-25

    IPC分类号: C25B1/46 C25B1/16 C25B1/26

    CPC分类号: C25B1/46

    摘要: In an electrolytic cell having cation exchange membrane as diaphragm to partition said cell into cathode and anode chambers, electrolysis of an electrolyte aqueous solution is conducted while generating gas from anode by keeping the inner pressure in cathode chamber higher than that in anode chamber. Some disadvantages caused in the case of electrolyzing an aqueous alkali metal halide solution to form alkali metal hydroxide in cathode chamber are overcome by adjusting the anolyte at pH

    摘要翻译: 在具有阳离子交换膜作为隔膜的电解池中,将电池分隔成阴极室和阳极室,通过将阴极室内的内压保持在比阳极室高的方式从阳极产生气体的同时进行电解。 在阴极室中电解碱金属卤化物水溶液以形成碱金属氢氧化物的情况下的一些缺点是通过调节pH <3.5的阳极电解液来克服。 还公开了可用于本方法的电解池。

    Polyurethane coating composition
    5.
    发明授权
    Polyurethane coating composition 失效
    聚氨酯涂料组合物

    公开(公告)号:US4007151A

    公开(公告)日:1977-02-08

    申请号:US583221

    申请日:1975-06-02

    摘要: A solventless polyurethane coating composition having a low viscosity suitable for coating, which comprises (a) an aliphatic or alicyclic polyisocyanate containing at least 3 isocyanate groups, (b) at least 1/3 equivalent, based on the isocyanate groups, of a monohydric alcohol, and (c) a low-molecular-weight polyhydric alcohol having at least 3 active hydrogen atoms. The composition provides coatings having superior properties such as good hardness, weatherability and intimate adhesion to a substrate.

    摘要翻译: 一种具有适于涂布的低粘度的无溶剂聚氨酯涂料组合物,其包含(a)含有至少3个异氰酸酯基团的脂族或脂环族多异氰酸酯,(b)至少1/3当量的异氰酸酯基团的一元醇 ,和(c)具有至少3个活性氢原子的低分子量多元醇。 该组合物提供具有优异性能的涂层,例如良好的硬度,耐候性和与基材的密合性。

    Electrolysis of sodium chloride in an ion-exchange membrane cell
    6.
    发明授权
    Electrolysis of sodium chloride in an ion-exchange membrane cell 失效
    在离子交换膜电池中电解氯化钠

    公开(公告)号:US4190505A

    公开(公告)日:1980-02-26

    申请号:US948659

    申请日:1978-10-03

    IPC分类号: C25B1/46 C25B1/16 C25B1/26

    CPC分类号: C25B1/46

    摘要: A sodium chloride feed solution containing an iron cyanide complex is subjected to purification to reduce the content of iron cyanide complex to not more than 0.5 ppm before it is fed as anolyte into an ion-exchange membrane electrolytic cell. The iron cyanide complex is preferably converted by oxidative decomposition to iron ions for removal. By use of such a purified sodium chloride as starting material, electrolysis of sodium chloride using an ion-exchange membrane can be performed for a long term at a constant electrolysis voltage.

    摘要翻译: 将含有氰化铁络合物的氯化钠进料溶液进行纯化,将其作为阳极电解液进料到离子交换膜电解池中之前将氰化铁络合物的含量降低至不大于0.5ppm。 氰化铁络合物优选通过氧化分解转化成铁离子以除去。 通过使用这种纯化的氯化钠作为原料,可以在恒定的电解电压下长时间地使用离子交换膜电解氯化钠。

    Bipolar system electrolytic cell
    7.
    发明授权
    Bipolar system electrolytic cell 失效
    双极体系电解槽

    公开(公告)号:US4111779A

    公开(公告)日:1978-09-05

    申请号:US790924

    申请日:1977-04-26

    IPC分类号: C25B9/20 C25B9/00

    CPC分类号: C25B9/206

    摘要: A bipolar system electrolytic cell having a partition wall made of explosion-bonded titanium plate and iron plate which is electrically connected to anode of titanium substrate at its titanium side and to cathode of iron at its iron side, space is preferably given between anode and the partition wall and also between cathode and the partition wall. An assembly having a number of such unit cells arranged in series is useful for electrolysis of sodium chloride which can be performed under a low voltage per unit cell.

    Process for electrolysis of alkali halide
    8.
    发明授权
    Process for electrolysis of alkali halide 失效
    碱性卤化物电解方法

    公开(公告)号:US4105515A

    公开(公告)日:1978-08-08

    申请号:US811277

    申请日:1977-06-29

    IPC分类号: C25B1/46 C25B1/16 C25B1/26

    CPC分类号: C25B1/46 Y02P20/129

    摘要: In carrying out electrolysis of alkali halide in an electrolytic cell having anode and cathode chambers separated by a cation exchange membrane by feeding an aqueous alkali halide solution into the anode chamber to produce halogen gas in the anode chamber and caustic alkali and hydrogen gas in the cathode chamber, the electrolytic cell is pressurized at higher than atmospheric pressure to obtain various improved results.

    System for electrolysis of sodium chloride by ion-exchange membrane
process
    9.
    发明授权
    System for electrolysis of sodium chloride by ion-exchange membrane process 失效
    离子交换膜法电解氯化钠体系

    公开(公告)号:US4214957A

    公开(公告)日:1980-07-29

    申请号:US8187

    申请日:1979-01-31

    IPC分类号: C25B1/46 C25B15/08 C01B1/02

    CPC分类号: C25B1/46 C25B15/08 Y02P20/129

    摘要: In a system for the electrolysis of sodium chloride in an electrolytic cell divided by a cation exchange membrane into the anode and cathode chambers, hydrogen chloride gas is synthesized from the chlorine gas and the hydrogen gas generated in said electrolytic cell, the hydrogen chloride gas synthesized is directly absorbed in the aqueous sodium chloride solution fed into the anode chamber to neutralize the hydroxyl ions in the anolyte migrated from the cathode chamber and the reaction heat as well as the absorption heat of the hydrogen chloride gas are also utilized for concentration of the dilute aqueous sodium chloride solution and/or the aqueous sodium hydroxide solution produced in the cathode chamber.

    摘要翻译: 在将由阳离子交换膜分离成的电解槽中的氯化钠电解成阳极室和阴极室的系统中,由氯气和所述电解槽中产生的氢气合成氯化氢气体,合成氯化氢气体 直接吸收在进入阳极室的氯化钠水溶液中以中和从阴极室迁移的阳极电解液中的羟基离子,并且反应热以及氯化氢气体的吸收热也用于稀释 氯化钠水溶液和/或在阴极室中产生的氢氧化钠水溶液。