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    • 7. 发明授权
    • Process for producing alkali hydroxide, chlorine and hydrogen by the
electrolysis of an aqueous alkali chloride solution in a membrane cell
    • 通过在膜电池中电解碱性氯化碱水溶液来生产碱金属氢氧化物,氯和氢的方法
    • US4839003A
    • 1989-06-13
    • US116433
    • 1987-11-03
    • Rainer DworakKarl Lohrberg
    • Rainer DworakKarl Lohrberg
    • C01D3/16C25B1/46C25B15/08
    • C25B15/08C01D3/16
    • Alkali hydroxide, chlorine and hydrogen are produced from an aqueous alkali chloride solution by membrane electrolysis. A high-NaCl solid salt, which contains impurities, is dissolved in water in a salt dissolver. Precipitating chemicals are added to the salt solution to precipitate the impurities. The resulting mixture is fed to a thickener, from which precipitates and clarified raw brine are separately withdrawn. The clarified raw brine from the thickener is divided at a ratio between 2:1 and 20:1 into first and second partial streams. The larger first partial stream is mixed with the salt solution and the precipitating chemicals before entering the thickener and the resulting mixture is fed to the thickener. The second partial stream of the clarified raw brine is fed through a fine purifier to the electrolytic cell. Spent brine from the electrolytic cell is fed to the salt dissolver.
    • 通过膜电解由氯化碱水溶液制备氢氧化碱,氯和氢。 将含有杂质的高NaCl固体盐溶解在盐溶解器中的水中。 将沉淀的化学品加入到盐溶液中以沉淀杂质。 将所得混合物加入到增稠剂中,从中分离出沉淀物和澄清的生盐水。 来自增稠剂的澄清的原料盐水以2:1至20:1的比例分成第一和第二部分流。 在进入增稠剂之前,较大的第一部分流与盐溶液和沉淀化学品混合,并将所得混合物进料至增稠剂。 澄清的生盐水的第二部分流通过细小的净化器送入电解池。 将来自电解池的废水进料到盐溶解器中。
    • 9. 发明授权
    • Electrolyte cell
    • 电解槽
    • US6110334A
    • 2000-08-29
    • US77823
    • 1998-06-04
    • Karl Lohrberg
    • Karl Lohrberg
    • C25B9/06C25B9/18C25B9/20C25B11/03H01M4/86H01M8/0204H01M8/0232H01M8/24C25B9/00
    • H01M8/0232C25B11/035C25B9/066C25B9/18C25B9/206H01M4/8631H01M8/0204H01M8/2445
    • The invention relates to an electrolyte cell with an end anode and an end cathode and bipolar cell elements disposed between outer cell elements comprising these and electrically connected with them and connected in series one with the other, wherein each cell element comprises one or two gas diffusion electrode(s) of which one forms simultaneously the ceiling of the subjacent electrolyte chamber and the floor of the superjacent electrolyte chamber and the end anode and the anodes of the bipolar cell elements comprise a perforated, electrically well-conducting electrode structure, wherein each electrolyte chamber is charged with electrolyte and reaction gas, such as oxygen, and a particular mixture of electrolyte and the resulting product as well as residual reaction gas are drawn off from each electrolyte chamber, wherein the cell elements are combined in the form of a stack, that [sic] the end cathode and the cathodes of the bipolar cell elements comprise a perforated, electrically well-conducting support wall on which rests in each instance one gas diffusion electrode, and that [sic] the overflows provided at the particular upper cell elements are adjustable with respect to height.
    • PCT No.PCT / EP96 / 04477 371日期:1998年6月4日 102(e)1998年6月4日PCT PCT 1996年10月15日PCT公布。 公开号WO97 / 20966 日期:1997年6月12日本发明涉及一种具有末端阳极和端部阴极的电解质电池和设置在包含它们的外部电池元件之间并与其电连接并且彼此串联连接的双极电池元件,其中每个电池元件包括 其中一个或两个气体扩散电极同时形成在下部电解质室的顶部和上部电解质室的底部,以及双极电池元件的端部阳极和阳极包括穿孔的导电电极 结构,其中每个电解质室充有电解质和反应气体,例如氧,并且电解质和所得产物的特定混合物以及残余反应气体从每个电解质室排出,其中电池元件组合在 堆叠的形式,末端阴极和双极单元元件的阴极包括穿孔 导电支撑壁,其中每个支撑壁都在其中搁置一个气体扩散电极,并且在特定上部电池元件处提供的溢流可相对于高度调节。