Selective flotation separation of fluorite and calcite by utilising a novel anionic/nonionic collector

Zhang, Danxian; Kang, Jianhua; Zhu, Wenqi

doi:10.1016/j.colsurfa.2022.128687

Cited by 16 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, calcium atoms were dense on the surface of fluorite. The significant difference in the adsorption behavior between fluorite and calcite allows fluorite to be separated efficiently fluorite in industry. − …”

Section: Methodsmentioning

confidence: 99%

Flotation Behavior and Adsorption Mechanism of Phenylpropyl Hydroxamic Acid As Collector Agent in Separation of Fluorite from Calcite

Mao

Xie

et al. 2023

Langmuir

View full text Add to dashboard Cite

The hydroxylamine method involves the synthesis of a new hydroxamic acid collector, i.e., phenylpropyl hydroxamic acid (PHA), from methyl cinnamic hydroxamic acid. Flotation test results show that PHA exhibits good selective collection ability. The adsorption mechanism of PHA is investigated using the zeta potential, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The results show that PHA formed a new Ca–O bond with Ca2+ on the fluorite surface via chemical adsorption. A new five-element chelated hydroxamate group may have formed in Ca on the fluorite surface. The PHA selectivity is fully explained via density functional theory (DFT) calculations, and an adsorption model is established.

show abstract

Section: Methodsmentioning

confidence: 99%

Flotation Behavior and Adsorption Mechanism of Phenylpropyl Hydroxamic Acid As Collector Agent in Separation of Fluorite from Calcite

Mao

Xie

et al. 2023

Langmuir

View full text Add to dashboard Cite

show abstract

“…The concentrating methods used for fluorite include flotation [12][13][14], photoelectric separation (for coarse-grained or bulk fluorite beneficiation), and gravity separation (for coarse-grained fluorite and barite separation) [15]. Practices have shown that flotation can treat various types of fluorite ores, serving as the primary beneficiation approach to fluorite.…”

Section: Flotation Separation Of Fluorite From Calcium-containing Min...mentioning

confidence: 99%

“…The Ca-F chemical bond energy (550 kJ/mol) in the fluorite crystal was greater than that of the Ca-O chemical bond energy (173.33 kJ/mol) in the calcite crystal, suggesting that the calcium atom activity on the fluorite (111) plane was stronger than that on the calcite (104) plane. The reactivity difference of oleic acid ions in the mixed micelles with calcium atoms may be the possible reason for the difference in the flotation performance of fluorite and calcite [13].…”

Section: Combined Collectorsmentioning

confidence: 99%

Difficulties and Recent Achievements in Flotation Separation of Fluorite from Calcite—An Overview

Huang

Zhang

Li³

et al. 2022

Minerals

View full text Add to dashboard Cite

As an important strategic non-metallic mineral resource, fluorite has been widely used in various industrial fields, such as metallurgy, optics and semiconductor manufacturing, as well as fluorine-related chemical engineering. Since the major gangue minerals of fluorite ore are silicate and carbonate ones, flotation is the main beneficiation method for the concentration. Compared with the relatively easy operation for silicate-type fluorite ore, fluorite concentration from calcite has always been the most difficult challenge in the field of mineral processing. In this review, analyses of the fundamental reasons for the difficulties of flotation separation of fluorite from calcite are performed, from the similar surface properties of both calcium minerals to the deterioration by the interference of dissolved ions in the pulp during grinding and flotation. Recent achievements in the flotation separation of fluorite from calcite as the main contents are comprehensively summarized, covering all aspects of flotation reagents of collectors, depressants and modifiers. Finally, successful examples of industrial practices forfluorite and calcite flotation separation are introduced. This overview provides a detailed and comprehensive reference source for the current research status of fluorite and calcite flotation separation, and some suggestions for future research are provided.

show abstract

Thermodynamic theory of flotation for a complex multiphase solid–liquid system and high-entropy flotation

Wen

2024

Int J Miner Metall Mater

View full text Add to dashboard Cite

Selective flotation separation of fluorite and calcite by utilising a novel anionic/nonionic collector

Cited by 16 publications

References 27 publications

Flotation Behavior and Adsorption Mechanism of Phenylpropyl Hydroxamic Acid As Collector Agent in Separation of Fluorite from Calcite

Flotation Behavior and Adsorption Mechanism of Phenylpropyl Hydroxamic Acid As Collector Agent in Separation of Fluorite from Calcite

Difficulties and Recent Achievements in Flotation Separation of Fluorite from Calcite—An Overview

Thermodynamic theory of flotation for a complex multiphase solid–liquid system and high-entropy flotation

Contact Info

Product

Resources

About