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Increasing the efficiency of secondary resources in the mining and metallurgical industryстатья
- Авторы: Jandieri, Gigo
- Журнал: JOURNAL OF THE SOUTHERN AFRICAN INSTITUTE OF MINING AND METALLURGY
- Том: 123
- Номер: 1
- Год издания: 2023
- Первая страница: 1
- Последняя страница: 8
- Номер статьи: 1092
- DOI: 10.17159/2411-9717/1092/2023
- Аннотация: An improved methodology is presented for assessing the economic feasibility and effectiveness of recycling industrial waste. The methodology is based on the break-even control mechanism, but at the same timeprovides for the introduction of new evaluation criteria such as the threshold of conditionality and the degree of ore substitution. Based on an improved analysis, it becomes possible to more precisely predict recycling efficiency. A more refined determination of the lower limit of concentration of recoverable metals, at whichtechnogenic waste can be assigned the status of secondary raw materials and processed profitably, leads to a significant expansion of the secondary raw material base suitable for recycling. The potential for recyclingmanganese-containing dust from the production of ferrosilicomanganese, dehydrated sludge from the hydro separation of slags, and cake from the production of electrolytic manganese dioxide at the Chiatura mining enterprise is used as an example. It is shown that with a threshold of –24% Mn content, the highestrecycling efficiency can be achieved by the production of low-phosphorus manganese slag and conversion to ferrosilicomanganese using the above waste to replace 40-60% grade III and IV manganese concentrates in the feed.
- Добавил в систему: Джандиери Гиго Владимирович