Trigg Minerals (ASX:TMG) has partnered with Metso (HEL:METSO), a technology services provider, to develop a scalable solution for processing antimony sulphide concentrates. The Ausmelt Top Submerged Lance (TSL) smelting technology will be used. Trigg Minerals is an Australian resource company focused on exploring and developing mineral projects. The company aims to supply essential minerals for clean energy technologies.
Metso will conduct a conceptual study for processing concentrate from Trigg’s Antimony Canyon Project in Utah. This study will assess a smelter flowsheet concept with the goal of producing between 3,000 and 5,000 tonnes annually of 99.65% purity antimony ingot. Ausmelt TSL technology is known for its environmentally responsible design, which delivers lower greenhouse gas emissions, minimal dust generation, and efficient off-gas capture compared to conventional smelting methods.
The study will examine a pyrometallurgical flowsheet in three stages. The first stage involves primary smelting of antimony sulphide concentrates to generate high-grade antimony oxide fume. The second stage includes treating the oxide fume to produce crude antimony. Finally, the third stage refines the metal to assess the potential for producing refined antimony metal with a target purity of 99.65%.
Trigg Minerals views this collaboration with Metso as a key part of its strategy to supply antimony products to the market with a reduced environmental impact. Managing Director Andre Booyzen stated that the proposal marks a critical step forward in establishing a reliable, Western processing pathway for antimony.
