Metal Ion Release in Bastnaesite Flotation System and Implications for Flotation

Cao, Shiming; Cao, Yijun; Ma, Zhen; Liao, Yinfei

doi:10.3390/min8050203

Cited by 22 publications

(7 citation statements)

References 22 publications

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“…The changes in binding energies were due to inductive effect of other bonding components. Thus, as widely discussed in the literature (Sarvaramini et al 2016; Cao et al 2018b; Chang et al 2022), it was the O atoms in the C–O groups (including carboxyl and phenolic groups) of TA that give electrons to interact with Ca or Ce atoms on the surface of fluorite or bastnaesite, thereby anchoring to their surface, with a consequent increase in the binding energies of the O atoms and a decrease in the binding energies of the Ca or Ce atoms. Moreover, the very low signal-to-noise ratios of the F1s and Ce3d spectra of bastnaesite treated with TA compared to pure bastnaesite stemmed from the masking effect of the adsorbed TA species on the surface of bastnaesite (Xu et al 2020).…”

Section: Discussionmentioning

confidence: 77%

“…Cao et al 2018b;Chang et al 2022), it was the O atoms in the C-O groups (including carboxyl and phenolic groups) of TA that give electrons to interact with Ca or Ce atoms on the surface of fluorite or bastnaesite, thereby anchoring to their surface, with a consequent increase in the binding energies of the O atoms and a decrease in the binding energies of the Ca or Ce atoms.…”

mentioning

confidence: 99%

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Adsorption of tannic acid as depressant in the flotation separation of fluorite and bastnaesite

Guo,

Hou,

Jin

et al. 2023

Mineral Processing and Extractive Metallurgy: Transactions of t

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Fluorite, a strategic industrial mineral, was investigated for flotation separation from bastnaesite with tannic acid (TA) as depressant. In this study, the adsorption analysis indicates that the adsorption density of TA on bastnaesite was greater than that of fluorite. The zeta potential, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) provide the evidence that chemisorption and electrostatic attraction occurred simultaneously between TA and fluorite or bastnaesite at optimal pH, the latter also involving hydrogen bonding interactions. Furthermore, the micro-flotation and batch flotation results suggest that TA could effectively depress bastnaesite with a negligible effect on fluorite at low concentrations, and that TA attached to the surface of bastnaesite precluded the adsorption of phthalic acid (PA) as collector, whereas it could be adsorbed on the fluorite surface. These findings offer a robust theoretical foundation and valid guidance for the flotation separation of fluorite from bastnaesite in industrial processes.

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Section: Discussionmentioning

confidence: 77%

mentioning

confidence: 99%

Adsorption of tannic acid as depressant in the flotation separation of fluorite and bastnaesite

Guo,

Hou,

Jin

et al. 2023

Mineral Processing and Extractive Metallurgy: Transactions of t

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“…In the leaching process, the solution pH decreased gradually from 7.3 to 6.3, which may be attributed to the hydrolysis of released ferric ions. Grinding is an essential process before flotation and has been reported to motivate ion release from minerals [24][25][26]. According to Figure 2b, the particle size of limonite decreased rapidly with grinding time, meanwhile, the concentration of released Fe in solution increased, reaching 18.81 mg/dm 3 after grinding 15 min.…”

Section: The Release Of Ferric Ions From Limonitementioning

confidence: 95%

Interaction Mechanism of Ferric Ions with Celestite Surface and Implications for Flotation Recovery

Cao

et al. 2019

Minerals

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In practical celestite flotation, iron contamination is commonly found on celestite surfaces. The effect of ferric ions on celestite flotation was assessed by a combination of ion release experiments, DFT calculation, X-ray photoelectron spectroscopy (XPS) analysis, adsorption isotherm study, and flotation experiments in this work. The ion release experiments showed that the associated limonite released ferric ions to solution. According to DFT calculation and surface complexation theory, we found that ≡SrOH0 and ≡SO4H0 are primary functional groups on celestite surface in aqueous environments. The XPS analysis and adsorption isotherm study revealed that ferric ions mainly adsorbed on celestite surface by complexing with two oxygen atoms of surface ≡SrOH0 groups to form ≡Sr–O–Fe–OH precipitates. Flotation results showed that ferric ions strongly depressed celestite flotation. Combined with the change in surface properties determined by XPS, it can be concluded that the adsorption of ferric ions on celestite surface decreased adsorption sites for the collector, and hence, led to depression on celestite flotation.

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“…The flotation of lead vanadate minerals, as well as flotation of non-sulfide minerals, is very sensitive to the ionic composition of the flotation pulp [36,57,74,88]. The influence and corresponding retarding mechanism of the ionic composition on flotation, mineral surface properties, and surface chemistry of non-sulfidic minerals as well as oxidized base-metals minerals are well observed and described in modern scientific works [89][90][91][92]. The main sources of various unavoidable and harmful ions in flotation pulp are the dissolution of soluble minerals and salts from ore, the release to solution through the grinding process, and used process water.…”

Section: Flotation Of Harmful Mineralsmentioning

confidence: 99%

Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores

et al. 2020

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Vanadium has been strongly moving into focus in the last decade. Due to its chemical properties, vanadium is vital for applications in the upcoming renewable energy revolution as well as usage in special alloys. The uprising demand forces the industry to consider the exploration of less attractive sources besides vanadiferous titanomagnetite deposits, such as lead vanadate deposits. Mineral processing and metallurgical treatment of lead vanadate deposits stopped in the 1980s, although the deposits contain a noteworthy amount of the desired resource vanadium. There has been a wide variety of research activities in the first half of the last century, including density sorting and flotation to recover concentrates as well as pyro- and hydrometallurgical treatment to produce vanadium oxide. There have been ecological issues and technical restrictions in the past that made these deposits uninteresting. Meanwhile, regarding the development of mineral processing and metallurgy, there are methods and strategies to reconsider lead vanadates as a highly-potential vanadium resource. This review does not merely provide an overview of lead vanadate sources and the challenges in previous mechanical and metallurgical processing activities, but shows opportunities to ensure vanadium production out of primary sources in the future.

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Metal Ion Release in Bastnaesite Flotation System and Implications for Flotation

Cited by 22 publications

References 22 publications

Adsorption of tannic acid as depressant in the flotation separation of fluorite and bastnaesite

Adsorption of tannic acid as depressant in the flotation separation of fluorite and bastnaesite

Interaction Mechanism of Ferric Ions with Celestite Surface and Implications for Flotation Recovery

Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores

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