A kind of recovery method of electrolytic fluorine waste electrolyte
A waste electrolyte and recovery method technology, applied in the direction of electrolysis components, electrolysis process, chemical instruments and methods, etc., can solve the problems of high iron and copper, and achieve the effect of increasing ion product
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[0035] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0036] Such as figure 1 Shown, a kind of electrolytic fluorine waste electrolyte recovery method of the present invention comprises the following steps:
[0037] (1) Dissolution of waste electrolyte
[0038] By dissolving the solid waste electrolyte in the electrolytic cathode alkali washing wastewater;
[0039] In the solid waste electrolyte, the main component is potassium bifluoride, and the mass content of potassium bifluoride is 80-90%, specifically 88% in this embodiment; other impurities are carbon powder, iron, and copper;
[0040] The composition of electrolytic cathode alkaline washing wastewater is potassium fluoride solution with a concentration of 100-150g / L; the temperature of electrolytic cathode alkaline washing wastewater is 60-80°C;
[0041] The liquid is filtered and separated by a centrifuge; ...
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