一种从酸性氯化体系中分离铁镓的方法
By combining anion exchangers and stepwise eluents, the problem of low iron-gallium separation efficiency in acidic chloride systems is solved, realizing a high-efficiency and low-cost iron-gallium separation method. This method is suitable for industrial applications of gallium extraction from solid wastes or tailings such as high-alumina fly ash, coal gangue, zinc slag, and iron tailings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANXI UNIV
- Filing Date
- 2023-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are difficult to effectively separate iron gallium from acidic chloride systems, resulting in low separation efficiency and complex processes, which increases processing costs.
Iron and gallium in an acidic chloride solution were simultaneously extracted or adsorbed using an anion exchanger, followed by stepwise elution using different eluents, including using a mixed solution of sodium sulfite, saturated sodium chloride, and hydrochloric acid as the first eluent. The efficient separation of iron and gallium was achieved by controlling the pH value and redox potential.
It achieves efficient separation of iron and gallium in acidic chloride systems, with an iron elution rate of up to 97.3% and a total gallium recovery rate of up to 98.5%. It simplifies the process and reduces processing costs, making it suitable for large-scale applications.
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Figure CN116926348B_ABST