Insights into the depression effect and adsorption mechanism of HACC on chalcopyrite surface in Cu-Mo flotation separation

Mingyang Li; Pengpeng Zhang; Xiangpeng Gao; Lingyun Huang

doi:10.37190/ppmp/172481

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Insights into the depression effect and adsorption mechanism of HACC on chalcopyrite surface in Cu-Mo flotation separation

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Insights into the depression effect and adsorption mechanism of HACC on chalcopyrite surface in Cu-Mo flotation separation

Mingyang Li, Pengpeng Zhang, Xiangpeng Gao and Lingyun Huang

Physicochemical problems of mineral processing, Vol.59(6), 172481

2023

DOI: https://doi.org/10.37190/ppmp/172481

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Abstract

In this study, hydroxypropyltrimethyl ammonium chloride chitosan (HACC) was first introduced as a depressant during separating chalcopyrite from molybdenite (Cu-Mo). The selective effects of HACC on the separation of Cu-Mo were conducted by single-mineral flotation tests. The findings revealed that HACC helps separate Cu and Mo efficiently at pH 6 with 8 mg/L of HACC, resulting in 76.22% and 5.38% of Mo and Cu recovery, respectively. The adsorption mechanism of HACC was investigated via Zeta potential, adsorption density, contact angle, FT-IR and XPS analysis. The contact angle and adsorption density measurements offer indisputable proof that HACC can adsorb on the surface of chalcopyrite. Furthermore, FT-IR and XPS measurements confirm that N atoms in quaternary ammonium groups of HACC interact with Cu sites on the surface of chalcopyrite. The findings also suggest that HACC adsorbs on the surface without significantly impacting molybdenite. All these results confirm that HACC can be an effective chalcopyrite depressant.

Details

Title: Insights into the depression effect and adsorption mechanism of HACC on chalcopyrite surface in Cu-Mo flotation separation
Authors/Creators: Mingyang Li
Pengpeng Zhang
Xiangpeng Gao
Lingyun Huang
Publication Details: Physicochemical problems of mineral processing, Vol.59(6), 172481
Publisher: Wroclaw University of science and technology
Identifiers: 991005606167307891
Copyright: © 2023 Wroclaw University of Science and Technology
Murdoch Affiliation: Centre for Water, Energy and Waste
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 7 Engineering & Materials Science; 7.229 Mineral & Metal Processing; 7.229.1157 Flotation
Web Of Science research areas: Chemistry, Physical; Mining & Mineral Processing
ESI research areas: Geosciences