Theoretical Analysis of Flotation Reagent Performance

WANG Jizhen; JING Maochen; LIU Ruihua; HAN Shuo

doi:10.13779/j.cnki.issn1001-0076.2023.08.002

2023 Vol. 43, No. 3

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WANG Jizhen, JING Maochen, LIU Ruihua, HAN Shuo. Theoretical Analysis of Flotation Reagent Performance[J]. Conservation and Utilization of Mineral Resources, 2023, 43(3): 10-16. doi: 10.13779/j.cnki.issn1001-0076.2023.08.002

Citation:

WANG Jizhen, JING Maochen, LIU Ruihua, HAN Shuo. Theoretical Analysis of Flotation Reagent Performance[J]. Conservation and Utilization of Mineral Resources, 2023, 43(3): 10-16. doi: 10.13779/j.cnki.issn1001-0076.2023.08.002

Theoretical Analysis of Flotation Reagent Performance

College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an 710054, China

Received Date: 02 January 2023

Publish Date: 15 June 2023

Abstract

Abstract

The influence of flotation regulators (such as lime, sodium sulfide, sodium cyanide and metal ion activator) on mineral flotation and the relationship between collector structure and performance were studied. The results showed that solubility product criterion and frontier orbital energy level parameters could be used to analyze the properties or structure-activity relationship of flotation reagents, but should be paid attention to the study of mineral surface properties, non-valence bond factors of flotation reagent properties and mineral-reagent interaction mechanism. By examining mineral surface features, it has been determined that selective depression or activation of minerals by flotation regulator (such as sodium sulfide, sodium cyanide, copper and lead metal ions) had a certain relationship with the valence electron configuration of mineral lattice metal, which was consistent with or supplementary to the results of solubility product criterion analysis. The interaction mechanism between minerals and reagents was examined using the solubility product criterion and frontier orbital energy level parameters were used to study the relationship between hydrocarbon group structure and xanthate properties. As a result, the primary and secondary relationships of hydrophobic factors, valence bond factors and spatial geometric effects of xanthate’s alkyl group structure on collecting performance were obtained. In conclusion, it is difficult to fully explain the performance of flotation reagents with a single theoretical parameter. The establishment of the coupled theoretical analysis system for reagent performance should be one of the key focuses of future research.
- flotation reagent performance /
- solubility product /
- frontier molecular orbital theory /
- valence electron configuration

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References

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