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21. 发明授权

US3795603A Apparatus for the electrolysis of alkali metal chloride solutions with mercury cathode 失效
标题翻译：用汞电解电解金属氯化物溶液电解的装置
公开(公告)号：US3795603A
公开(公告)日：1974-03-05
申请号：US3795603D
申请日：1973-02-13
申请人： UHDE GMBH
发明人： GLOS F , MISCHKE J
IPC分类号： C25B1/40 , B01K3/04 , C22D1/04
CPC分类号： C25B1/40
摘要： AN APPARATUS FOR THE ELECTROLYSIS OF ALKALI METAL CHLORIDE SOLUTIONS WITH MERCURY CATHODE. FRESH BRINE IS DELIVERED THROUGH A HOLLOW SHAFT AND UNIFORMLY DISTRIBUTED TO A PLURALITY OF PASSAGES IN THE ANODE. SMALL OPENINGS IN THE PASSAGES ON THE ACTIVE SIDE OF THE ANODE ENABLE BRINE TO PASS INTO THE NARROW ELCTROLYSIS GAP BETWEEN THE ANODE AND MERCURY CATHODE. SMALL OPENINGS IN THE SOLID PART OF THE ANODE OR BETWEEN THE PASSAGES ENABLE THE WEAKENED BRINE CHARGED WITH SMALL CHLORINE GAS BUBBLES TO FLOW INTO THE CELL CHAMBER.

23. 发明授权

US3293161A Method for starting up mercury cathode electrolytic cells 失效
标题翻译：汞阴极电解池启动方法
公开(公告)号：US3293161A
公开(公告)日：1966-12-20
申请号：US31194663
申请日：1963-09-27
申请人： ORONZIO DE NORA IMPIANTI
发明人： LAUB HENRY W
IPC分类号： C25B1/40 , C25B11/10
CPC分类号： C25B1/40

28. 发明专利

JPS50143799A 失效
公开(公告)号：JPS50143799A
公开(公告)日：1975-11-19
申请号：JP4418075
申请日：1975-04-11
IPC分类号： C25B1/40 , C25B1/46 , C25B9/00 , C25B9/08 , C25B9/18
摘要： Disclosed is a method of operating an electrolytic cell divided into an anolyte chamber and a catholyte chamber by a substantially horizontal, permeable barrier. The anolyte chamber is above the permeable barrier while the catholyte chamber is below the permeable barrier. Electrolyte passes from the anolyte chamber through the permeable barrier to the catholyte chamber. An electrical current passes through the cell, thereby evolving chlorine gas on the anode and hydrogen gas on the cathode. The electrical current is in excess of the unaided flow of electrolyte through the permeable barrier resulting in diminished cathode current efficiency and necessitating augmentation of the flow of electrolyte to restore the current efficiency to acceptable values. According to the disclosed method, chlorine gas is collected at super-atmospheric pressure in the anolyte chamber, and withdrawn from the anolyte chamber while maintaining the chlorine gas at such elevated pressure. The elevated pressure of chlorine augments the flow of electrolyte through the permeable barrier to the catholyte chamber.

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