Within the downstream processing chain for antimony—specifically the transformation from crude antimony to high-purity ingots—electrolytic refining serves as the pivotal stage for enhancing purity and separating precious metals. Addressing the challenge posed by impurities such as iron, arsenic, lead, silver, and gold found in crude antimony—impurities that traditional pyrometallurgical refining struggles to separate efficiently—our company has developed high-efficiency electrolytic antimony equipment. Leveraging precise electrochemical control and a robust system design, this equipment enables the large-scale production of high-purity cathode antimony while simultaneously recovering valuable metals.

Core Process: Crude antimony is cast into anode plates and then subjected to electrolysis within a specialized electrolyte system. The antimony contained in the anodes dissolves into the electrolyte, while insoluble impurities—such as silver and gold—accumulate as anode slime, which can subsequently be extracted. Meanwhile, high-purity antimony is deposited densely onto the cathodes, forming cathode antimony. Following subsequent remelting and high-temperature oxidation, the process yields flame-retardant-grade cubic-crystalline Sb₂O₃ powder.

Key Advantages:

Product purity significantly exceeds that achieved through traditional pyrometallurgical refining.

Silver and gold recovery rates exceed 95%, resulting in a substantial improvement in overall economic returns.

Features a closed electrolytic cell design, automatic temperature control, and a circulating filtration system, ensuring a clean, eco-friendly operation with lower energy consumption.

Utilizes full PLC/DCS automation for precise control of current and voltage, producing cathode antimony that is smooth and easily stripped from the cathodes.

This equipment integrates seamlessly with upstream reduction smelting operations to process crude antimony, while simultaneously providing high-quality raw materials for downstream Sb₂O₃ production. It is ideally suited for antimony smelting enterprises seeking to upgrade their production lines, for the recovery of metals from polymetallic associated ores, and for the production of high-purity antimony materials.

Maximize the value of every ton of crude antimony. We offer comprehensive solutions—ranging from electrolytic cell design to automation control systems—and can assist clients in optimizing their existing production processes. Contact us today to receive a customized proposal for electrolytic antimony equipment and a detailed economic benefit assessment.