The pilot test of the Efficient Volume and Weight Reduction Technology for Arsenic Sulfide Residue, jointly conducted by Jinchuan Nickel-Cobalt Research & Design Institute and Jinchuan Copper-Noble Headquarters, has recently achieved significant results. This provides an innovative solution to the industry-wide challenge of treating arsenic sulfide residue.
The research team at the Environmental Technology Branch of Jinchuan Nickel-Cobalt Research & Design Institute focused on the process stages where arsenic sulfide residue is generated. By analyzing its microstructure, moisture distribution patterns, and binding mechanisms based on its physicochemical properties, the team carried out scientific research and repeated experiments, ultimately innovating a complete set of technologies and equipment for the efficient volume and weight reduction of arsenic sulfide residue.
Through systematic control of key parameters such as gas-to-material ratio, temperature, and time, the process continuously optimizes the treatment chain. After treatment, the moisture content of arsenic sulfide residue is reduced from over 60% to below 20%, achieving a weight reduction of 40% and a volume reduction of approximately 50%. The results are remarkable, and the process demonstrates wide adaptability, performing effectively on arsenic sulfide residues with complex and variable compositions from different production sources. The system operates stably and reliably, offering an economical and efficient hazardous waste reduction solution for non-ferrous metal smelting and charting a new path for synergy between environmental protection and cost-effective innovation.
Written by Cora Ji, jiruyan@mysteel.com
