The Presence Form Iridium In Waste Gases Of Copper Production

Abstract

The modern development of metallurgy requires comprehensive processing of raw materials with the extraction of valuable components from technogenic waste. Despite the presence of significant quantities of valuable components in technogenic waste, a significant aspect is the form of occurrence and properties of the extracted component, as their physicochemical properties during interaction with process reagents lead to unpredictable interactions. To select an effective technology and assess the quality of the resulting product, it is necessary to investigate and analyze the chemical and mineralogical formations of compounds in the raw materials. Consequently, iridium is present in the exhaust gases of the copper smelting section. Iridium belongs to the rarest and most refractory elements of the platinum group. Despite its extremely low content in nature, it can be present in the waste flows of non-ferrous metallurgy, especially during the processing of copper-nickel and copper-molybdenum sulfide ores containing platinum metal impurities. The capture and extraction of iridium from exhaust gases is becoming both ecologically relevant and resource-saving. This article is dedicated to the analysis of the forms of iridium's presence in gases, the thermodynamic aspects of its behavior in various types of furnaces, and the technical possibilities of its capture and extraction.