China Precious Metal Refining Technology And Equipment Leading Brand
Detailed News
Enriching Precious Metals

     

This method covers multiple process steps: chlorine removal with hydrogen peroxide and sodium sulfate, copper removal via solvent extraction and stripping, precious metal enrichment through zinc powder cementation, impurity removal by lime neutralization, and zinc precipitation via neutralization with sodium carbonate and sodium bicarbonate.

Compared with existing technologies, this method adopts a hydrometallurgical cementation process, which greatly reduces the large amount of waste gas and dust generated in conventional pyrometallurgical treatment. Meanwhile, copper is recovered in the form of copper sulfate; chlorine removal residue and neutralization residue are returned to the chlorination process for reuse; the post-cementation liquor and post-zinc-precipitation liquor are adjusted and regenerated before being sent back to the chlorination leaching process for cyclic utilization. All these designs reduce the discharge of solid waste and wastewater as well as lower production costs.

+8613303827570
Related Product
Related Video
Product Center
Related Cases
Contact Us
We'll get in touch with you right away to provide detailed product info and tech insights sincerely.