一种从代森锰锌母液中回收高纯度硫酸锰的工艺
By combining multifunctional modified materials with hydrogen peroxide aqueous solution, the problems of manganese-zinc co-precipitation and organic residue were solved, and the recovery of high-purity manganese sulfate was achieved. This solved the problems of low manganese yield and impurity residue in the existing technology, and high-purity manganese sulfate crystals were prepared.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN MODERN PESTICIDE
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies often lead to co-precipitation of manganese and zinc when processing manganese-zinc mother liquor, resulting in low manganese yield and difficulty in removing organic residues, leading to low purity of manganese sulfate that cannot meet battery-grade or high-purity reagent-grade standards.
Multifunctional modified materials, including chloromethylated crosslinked polystyrene resin, are prepared through sulfonation, nucleophilic substitution, and surface graft copolymerization reactions. Combined with hydrogen peroxide aqueous solution, highly selective separation of manganese and zinc ions and mineralization of organic matter are achieved under mild conditions.
The method achieved the recovery of high-purity manganese sulfate crystals with a zinc ion content of less than 5 ppm, significantly improving the manganese yield and effectively removing impurities from the mother liquor, thus ensuring the smooth progress of the subsequent crystallization process.
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