Smelting:┬áThe Tin concentrates treatment process is performed in batches, in 4 well defined stages: melting, reduction, granulation and cleaning. Application of each of these procedures allows us to:
Refinery:┬áCrude tin produced in the smelting process contains impurities such as iron, copper, arsenic, antimony, lead, bismuth and Indium. These impurities are removed sequentially, using a Pyro-metallurgical process, in 50 ton capacity cast iron pots, taking advantage of the different physicochemical properties of each of them, until Tin refined with 99.94% of purity and a maximum of 0.02% of lead is extracted, which is then molded into ingots and other forms of presentation.
By-product plant:┬áThe various recycling items generated in the smelter and refinery, such as of iron, copper, arsenic antimony and welding dross, are stored and processed by the by-products plant in well-defined channels, according to the nature of the impurities.
Slag grinding plant:┬áSlag produced by the smelter is transferred to the grinding plant for treatment and later sent to the San Rafael mine, to be used as filler paste.
Production and Marketing:┬áProduction is primarily intended for sale overseas, where we compete advantageously on the international markets that demand high purity metals, guaranteeing its customers a minimum content of 99.94% of Tin and a maximum of 0.02% lead.