Antimony slurry electrolysis technology is an efficient and environmentally friendly metallurgical method widely used for the extraction and refining of antimony. The design and component selection of the core antimony slurry electrolysis cell are crucial to electrolysis efficiency, energy consumption, and product quality. The electrolysis cell consists of four core components:

The cell body is the basic structure, typically made of corrosion-resistant polypropylene plastic to resist corrosion from acidic or alkaline electrolytes and extend equipment life. The cell body is often reinforced with 316 stainless steel to enhance mechanical strength and stability, preventing deformation or leakage.

The anode is a key electrode and requires high conductivity and corrosion resistance. Inert electrodes such as titanium-coated electrodes (titanium plates coated with precious metal oxides such as ruthenium and iridium) or high-strength graphite electrodes are commonly used. They are stable in harsh environments, prevent premature wear, ensure uniform current distribution, and improve reaction efficiency.

The cathode is typically made of stainless steel or titanium plates, which offer excellent conductivity and mechanical strength, corrosion resistance, and ease of machining. Its surface must be flat and smooth to facilitate uniform antimony deposition and subsequent stripping. Material selection and surface treatment influence the purity and morphology of the metal product. The diaphragm separates the anode and cathode chambers, preventing the mixing of products from the two electrodes and the occurrence of side reactions. It must have good ion permeability and chemical stability. Polypropylene non-woven fabrics, ceramic composite membranes, or specialty fiber membranes are commonly used. Their microporous structure allows ions to pass through while blocking solid particles and bubbles.

The components of an antimony slurry electrolysis cell work together: the cell provides support and sealing, the anode and cathode drive the reaction, and the diaphragm ensures separation of the reaction zones. The optimized design improves antimony recovery and purity, reduces energy consumption and maintenance costs, and promotes the development of green metallurgy. In the future, it is expected to become even more efficient and intelligent.