Electrolytic cell

Abstract

Abstract PURPOSE:To prevent the stagnation phenomenon of solution which becomes the cause for voltage rise and deterioration of ion exchange mambrane and enable product to be obtained with good efficiency by providing the ion exchange membrane in close contact with one or both of cathode and anode. CONSTITUTION:In an electrolytic cell or the like for alkali ahlide solution, an ion exchange membrane is so provided as to make close contact with one or both of cathode and anode. The cathode is of porous shape such as metal gauze and expanded metal and the materials used are iron, nickel, stainless steel, etc. The anode is usually of porous shape and the material comprising providing covering of platinum, palladium, etc. on the surface of valve metals such as graphite , titanium and tungsten us sed as its material. Preferably, longitudinal grooves are provided on the surface of the electrodes in close contact with the ion exchange membrane. Thereby, the deposition of heavy metals on the ion exchange membrane is reduced and voltage rise effectively prevented.

Inventors

• 👤 Masakatsu Nishimura
• 👤 Shunji Matsuura
• 👤 Takashi Sadamoto

Bibliographic Details