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Compares flotation efficiency of 2-octylthioaniline with potassium amyl xanthate in sulfide ores, suggesting enhanced performance of new collector.
The flotation effect of the new collector, 2-octylthio(aniline) (2-OA), on two types of sulfide ores under various conditions was investigated and compared with that of the conventional collector, potassium amyl xanthate (PAX). Collector 2-OA showed better floatability in copper sulfide ore flotation, and the copper grade could be enriched up to 1.5 times the original ore during the secondary flotation of copper sulfide ore. Compared to PAX, 2-OA demonstrated a stronger ability to collect copper than iron. Furthermore, in the flotation of gold sulfide ore, a 13% higher gold recovery was achieved with 2-OA than with PAX. Surface chemical analysis showed that 2-OA altered the surface charge of minerals and formed Cu–S and Cu–N bonds on the chalcopyrite surface. The adsorption capacity of 2-OA exceeded that of PAX, thereby enhancing the flotation effect. Overall, 2-OA exhibits better flotation performance and potentially serves as an efficient collector for sulfide ore flotation.
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Zhao et al. (2025) studied this question.
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