Processing zinc into a pure form is complicated by the fact that the ore invariably contains other chemical elements such as iron and sulphur. Traditionally, the zinc ore concentrate is roasted in hot ...

Silver has been a monetary metal and used in jewelry for thousands of years, but today, silver is powering the green energy transition and new tech innovation. With the greatest electrical ...

PARAUAPEBAS, Brazil, June 25 (Reuters) - Mining giant Vale (VALE3.SA), opens new tab aims to stop using water to process iron ore at its Carajas mines by 2027, executives said on Tuesday, while ...