Increasing the efficiency of secondary resources in the mining and metallurgical industry

An improved methodology is presented for assessing the economic feasibility and effectiveness of recycling industrial waste. The based on break-even control mechanism, but at same time provides introduction new evaluation criteria such as threshold conditionality degree ore substitution. Based an analysis, it becomes possible to more precisely predict efficiency. A refined determination lower limit concentration recoverable metals, which technogenic waste can be assigned status secondary raw materials processed profitably, leads a significant expansion material base suitable recycling. potential manganese-containing dust from production ferrosilicomanganese, dehydrated sludge hydro separation slags, cake electrolytic manganese dioxide Chiatura mining enterprise used example. It shown that with -24% Mn content, highest efficiency achieved by low-phosphorus slag conversion ferrosilicomanganese using above replace 40-60% grade III IV concentrates in feed.