'The process of extracting metals from sulfide ore concentrate containing metals by direct reduction and recycling of reducing iron and sodium carbonate melt agents

摘要

The invention is called "the process of extracting metal from sulfide ore concentrate containing metal by direct reduction of iron reductant and direct reduction and recovery of sodium carbonate smelter". It is a substitute of traditional metal mining process. The improved direct reduction process is adopted, i.e. no sulfur dioxide is discharged and no slag produced by conventional metallurgy is produced, so as to minimize environmental pollution and extract iron and non-ferrous metals from sulfide ores containing sulfur. Besides,By recycling reducing iron and sodium carbonate matrix, the operation cost of metallurgical process is greatly reduced.