The mineralogical transformation of a polymetallic sulfide ore during partial roasting
Source abstract
Abstract
A partial desulfurization roasting process has been tested on a typical copper-zinc sulfide concentrate in a Nichols Herreshoff monohearth pilot furnace. In this process, the sulfur is partially removed and iron, to a certain degree, is preferentially oxidized, The mineralogical characterizations of the reaction products at different residence times enable the recognition of a sequence of reactions and various textural relationships during the roasting. The testing showed that a controlled desulfurization at a temperature as low as 650 degreesC can lead to the decomposition of chalcopyrite, resulting in the formation of discrete particles of Cu2S having a size ranging from five to 20 micrometers or more.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metal Extraction and Bioleaching · Minerals Flotation and Separation Techniques · Metallurgical Processes and Thermodynamics
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References (15)
Show source-provided references
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