Treatment system for continuous and efficient defluorination in zinc sulfate solution
By processing the waste cathode aluminum plate of the zinc electrostatic accumulation system into aluminum chips and used to remove fluoride ions in the zinc sulfate solution, the problem of difficult to reduce the concentration of fluorine ion in the wet zinc smelting system is solved, and efficient defluorination and secondary utilization of waste materials is achieved, reducing production costs and energy consumption.
Patent Information
- Application Number
- CN202421460160.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The prior art is difficult to effectively reduce the concentration of HCFCs in the zinc sulfate solution in the wet zinc smelting system, resulting in equipment corrosion, difficulty in peeling off the electro-zinc adhesive plate, and increased energy consumption.
By cutting and processing the waste cathode aluminum plate of the wet zinc smelting zinc electrolysis system into aluminum chips, and using it to remove fluoride ions in the waste liquid produced by the zinc electrolysis system, reacting the aluminum chips with hydrogen ions in the solution to generate trivalent aluminum ions, and then combining with the fluoride ions to form precipitated aluminum fluoride, thereby achieving continuous and efficient defluorination of the zinc sulfate solution.
The wet zinc smelting system has been achieved to significantly defluoride, reduce the concentration of fluorine-chloro-ion, avoid equipment corrosion and increase energy consumption, and at the same time, the secondary comprehensive utilization of waste cathode aluminum plates has been achieved, reducing production costs.