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1. Process
1.1 Principle
Fluorine is prepared by electrolysis of anhydrous hydrogen fluoride, made conductive by the addition of a metal fluoride. Industrial producers use molten salt with a composition close to KF, 2 HF at a temperature of between 85 and 105 ˚C.
In this medium, hydrogen fluoride decomposes at a minimum potential of 2.9 V according to the reaction :
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Unit operations. Chemical reaction engineering
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