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The study aims to develop a combined sulfation method for processing low-grade copper sulfide concentrates.

July 12, 2026MetalsOpen Access

Thermodynamic and Experimental Study of Combined Sulfation Roasting of Copper Sulfide Concentrates

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Randomized trial demonstrates effective processing of low-grade copper sulfide concentrates, highlighting resource recovery importance.

The study aims to develop a combined sulfation method for processing low-grade copper sulfide concentrates.
Developed a combined sulfation method (CSM) using thermally coupled zones in a shaft furnace
Conducted thermodynamic modeling to validate temperature conditions for sulfation
Performed laboratory tests to compare calculated and experimental data.
Achieved copper recovery rates of 89.13–92.13% from flotation enrichment
Demonstrated heat compensation through excess oxidation to maintain sulfation temperature
Established a basic flow chart for waste-free processing of copper sulfide raw materials.

Zhumashev et al. (2026) studied this question.

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