Application
Specially used for recovering precious metals including gold, silver, copper and palladium from waste metals, industrial hazardous waste, electroplating sludge and electronic waste via roasting process, serving as a vulcanizing agent, flux and slagging agent.
Working Principle
Raw unfloated pyrite ore decomposes at high temperatures to generate sulfur-containing gases such as S₂, SO₂ and FeS, enabling sulfide enrichment of dispersed precious and non-ferrous metals into sulfides that are easy to collect, smelt and leach. Meanwhile, it lowers the melting point of furnace charge, improves slag-metal separation, and significantly enhances the recovery rate of gold, silver, copper, palladium and other metals.
Key Specifications (Customizable)
Total Sulfur (St)
Base grade: ≥30%
Customizable grades: 35%, 38%, 42%
Harmful Impurities (Strictly Controlled)
As (Arsenic): ＜0.01%
Pb+Zn (Lead + Zinc total): ＜1%
F (Fluorine): ＜0.1%
C (Fixed carbon): ＜2%
Physical Properties
Moisture: ＜5%
Particle size: 0–15 mm (mainly granular); 3–35 mm and other sizes are also available
Mineral Composition
Dominated by pyrite (FeS₂) with high reaction activity;
Low content of pyrrhotite and limonite to ensure sulfur grade and performance.
