Electrolyte Warming and Cooling Equipment

If electrolysis is to proceed at a higher temperature Joule s heat evolved during the flow of the current through the electrolytic cell is utilized for warming up the electrolyte to the temperature required. 

Should this prove insufficient, or in cases where Joule s heat cannot be used for some reasons, special heating devices must be employed. Heating devices installed outside the electrolyzer are suitable for open containers and not too high temperatures. Such heaters are installed before the first cell in an arrangement of cascades with a circulation of the electrolyte. The electrolytic cell can also be provided with a steam heating jacket. 

If higher temperatures are necessary, heating coils must be used made either of electrically nonconduotive materials, if available, or metals these coils are directly immersed into the bath. When made of metals they must be prevented from functioning as bipolar electrodes therefore special nonconductive protecting walls are placed between the coils and the electrodes, or the coils are con-ductively connected to one electrode. 

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