TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: In the process: the fluorine is contacted with liquid hydrogen fluoride in a jet gas scrubber, or by bubbling it through liquid hydrogen fluoride in a vessel; the step of removing hydrogen fluoride is a low temperature treatment, where the pressure is 1-20 bar (absolute), preferably less than or equal to 12 bar (absolute); continuously or intermittently, at least a part of the liquid hydrogen fluoride is withdrawn from the solid removing treatment, where the withdrawn hydrogen fluoride is introduced into an electrolytic cell or into electrolytic cells for fluorine production; the fluorine is electrolytically produced in at least one electrolytic cell from an electrolyte containing potassium fluoride dissolved in hydrogen fluoride; and the electrolytically produced fluorine is passed through a particle filter and subsequently subjected to the solid removing treatment and the purification treatment. The purification treatment comprises: at least one step of a low temperature treatment; at least one subsequent step of contacting the fluorine with an adsorbent for hydrogen fluoride; and at least one subsequent step of passing the fluorine through a particle filter to provide highly pure fluorine, where the particle filter comprises pores having a diameter of less than 1 mu m, preferably less than 10 nm. Preferred Components: The adsorbent is sodium fluoride. EXAMPLE - Electrolysis cell was filled with an electrolyte salt containing a composition of potassium fluoride-hydrogen fluoride (KF-2HF), and heated to 80-120 degrees C and molten. Then hydrogen fluoride was introduced into the electrolytic cell. Then current was passed through the electrolyte salt dissolved in the hydrogen fluoride, by applying a voltage of 8-10 V, to form an elemental fluorine and elemental hydrogen in the respective electrode compartments. Then the raw generated elemental fluorine gas was withdrawn from the electrolytic cell and was fed into the bottom of a jet gas scrubber. Then the liquid hydrogen fluoride which had a temperature of -80 degrees C was injected into the scrubber to remove the entrained solids in the fluorine. The resultant fluorine was passed through a Monel (RTM: Metal frit) with pores having a diameter of 1 mu m to remove solids. Then the fluorine leaving the frit was passed through a trap and cooled to -80 degrees C. In the trap, hydrogen fluoride entrained in the fluorine was condensed and returned to the purification step. The resultant fluorine was then passed through a tower containing sodium fluoride and then through a Monel (RTM: Filter) (having pores with a diameter of lower than 10 nm) for further removal of hydrogen fluoride, to obtain the highly purified fluorine.