How to Improve Purification Efficiency in Zinc Hydrometallurgy

The following are some methods to improve the purification efficiency in the zinc hydrometallurgy process:
Optimizing process conditions: In the Zn purification process, controlling the appropriate temperature, acidity, reaction time and other process conditions can improve the purification efficiency. For example, an appropriate increase in temperature can speed up the reaction speed and increase the activity of zinc powder, thereby improving the purification efficiency.

- Use of additives or reagents: In the purification process, adding the right amount of additives or reagents can improve the purification efficiency. For example, adding copper sulfate can promote the precipitation of copper and improve the removal efficiency of copper; The addition of antimony salt can promote the precipitation of cobalt and nickel, and improve the removal efficiency of cobalt and nickel.
- Multi-stage purification: The use of multi-stage purification can improve the purification efficiency. For example, the use of two or three stage purification process can remove different impurities respectively and improve the purification effect.
- Improve the quality of zinc powder: the quality of zinc powder has a great impact on the purification efficiency. Using high purity and high activity zinc powder can improve the purification efficiency. In addition, the quality of zinc powder can be improved by improving the preparation technology.
- Enhanced mixing: In the purification process, enhanced mixing can improve the reaction speed and uniformity, thereby improving the purification efficiency.
Adopting new purification technologies: Continuous research and development of new purification technologies, such as ion exchange, solvent extraction, membrane separation, etc., can improve purification efficiency, reduce costs, and reduce environmental pollution.