Adsorption performance of copper ions on arsenopyrite surfaces and implications for flotation

Li, Yu; Liu, Quanjun; Li, Shimei; Deng, Jiushuai; Luo, Bin; Lai, Hao

doi:10.1016/j.apsusc.2019.04.068

Cited by 32 publications

(7 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A surface-induced hydrolysis reaction mechanism was suggested. An investigation into the adsorption performance of copper ions on arsenopyrite surfaces was also reported, as the removal of arsenic from base-metal ores is an important environmental objective, especially in relation to mineral processing [39].…”

Section: Fundamentalsmentioning

confidence: 99%

From Microbubbles to Nanobubbles: Effect on Flotation

2021

View full text Add to dashboard Cite

Attachment of particles and droplets to bubbles—the latter being of various fine sizes and created by different techniques (as described in detail)—forms the basis of flotation, a process which indeed was originated from mineral processing. Nevertheless, chemistry often plays a significant role in this area, in order for separation to be effective, as stressed. This (brief) review particularly discusses wastewater treatment applications and the effect of bubble size (from nano- to micro-) on the flotation process.

show abstract

Section: Fundamentalsmentioning

confidence: 99%

From Microbubbles to Nanobubbles: Effect on Flotation

2021

View full text Add to dashboard Cite

show abstract

“…These peaks are ascribable to S 2− ; no other S species were detected on the hemimorphite surface. The spectrum of the sample with the solution containing Fe 3+ shows S 2p3/2 (161.64 eV) and S 2p1/2 (162.82 eV) peaks, which are also ascribable to S 2− [17,18]; no other S species were found on the hemimorphite surface. The S 2p peak was clearly less intense than that for the sample with no added Fe 3+ .…”

Section: Xps Resultsmentioning

confidence: 93%

Mechanism of Depression by Fe3+ During Hemimorphite Flotation

et al. 2020

View full text Add to dashboard Cite

Sulfide hemimorphite can be depressed by Fe3+ during flotation. In this study, the depression mechanism was studied by microflotation, inductively-coupled plasma mass spectrometry, local electrochemical impedance spectroscopy (LEIS), and X-ray photoelectron spectroscopy (XPS). Flotation test results suggested that sulfated hemimorphite can be depressed by Fe3+ across the entire pH range. LEIS, adsorption analysis, and XPS indicated that S species were adsorbed on hemimorphite as ZnS. The sulfide film was attenuated and no adsorbed Fe species were found after treatment with Fe3+. The results indicate that Fe3+ reacts with the ZnS film, which decreases the number S species, and this leads to hemimorphite depression.

show abstract

“…The ore extracted from the mines of KGHM Polska Miedź S.A. contains, on average, about 1.52% of useful metal [3]. Valuable ore is subjected to processing, the main operation of which is enrichment by flotation [4][5][6][7]. As a result of this operation, a concentrate is obtained with a copper content enabling it to be metallurgically processed in the smelting process.…”

Section: Introductionmentioning

confidence: 99%

“…of which is enrichment by flotation [4][5][6][7]. As a result of this operation, a concentrate is obtained with a copper content enabling it to be metallurgically processed in the smelting process.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Possibility of Using New Types of Protective Coatings and Abrasion-Resistant Linings under the Operating Conditions of the Spiral Classifier at KGHM Polska Miedź S.A. Ore Concentration Plant

et al. 2021

View full text Add to dashboard Cite

A study was carried out to select the appropriate coatings for corrosion protection of the spiral classifier working at KGHM Polska Miedź S.A. Ore Concentration Plant. The abrasion resistance of selected protective coatings and wear-resistant linings was investigated using a DT-523 rotary abrasion tester with Taber CS-10 rubber abrasive discs. The average weight loss of the coatings after a cycle of 2000 revolutions was determined. Tests of protective coatings using the electrochemical impedance spectroscopy (EIS) technique were carried out to determine the suitability of coatings in the highly saline environment of the aqueous suspension of ground copper ore. During the measurements, changes in resistance, polarising current and capacitance were determined as a function of time for the tested coatings. The linings selected on the basis of laboratory tests were also tested under industrial conditions. Their degrees of wear were characterised. The results obtained indicated the highest abrasion resistance of materials from the polyolefin group (polyethylenes), where the average weight loss did not exceed 5 g/dm2. In the case of protective coatings, the highest durability was demonstrated by coatings with additives of ceramic aggregates, phenol-epoxy, and an elastomeric coating based on polyurea, whose average weight loss during the test cycle did not exceed 19 g/dm2. EIS measurements showed that the tested coatings were resistant to the aggressive environment of the feedstock. Tests under cathodic polarisation conditions of the samples at a potential below the protection potential showed that they were resistant to a highly saline environment and were also resistant to its alkalinisation resulting from the application of cathodic protection, which will be used to protect the classifier together with protective coatings. Tests carried out under industrial conditions using wear-resistant linings made of plastics have made it possible to analyse the mechanism and degree of wear of the various materials during the operation of the classifier. Measurements of lining wear were made in relation to baseline volumes. Polyurethane, a polymer lining based on MDI and PTMG, and those made of ultra-high-molecular-weight polyethylene with anti-stick additives showed the lowest wear rates.

show abstract

Adsorption performance of copper ions on arsenopyrite surfaces and implications for flotation

Cited by 32 publications

References 36 publications

From Microbubbles to Nanobubbles: Effect on Flotation

From Microbubbles to Nanobubbles: Effect on Flotation

Mechanism of Depression by Fe3+ During Hemimorphite Flotation

Analysis of the Possibility of Using New Types of Protective Coatings and Abrasion-Resistant Linings under the Operating Conditions of the Spiral Classifier at KGHM Polska Miedź S.A. Ore Concentration Plant

Contact Info

Product

Resources

About