Flotation separation of wolframite from calcite using a new trisiloxane surfactant as collector

Shuai, Shuyi; Huang, Zhiqiang; Burov, Vladimir E.; Пойлов, В З; Li, Fangxu; Wang, Hongling; Liu, Rukuan; Zhang, Shiyong; Cheng, Chen; Li, Wenyuan; Yu, Xinyang; He, Guichun; Fu, Weng

doi:10.1016/j.ijmst.2022.12.003

Cited by 24 publications

(7 citation statements)

References 37 publications

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“…6. It can be presented that these two samples dropped as the pH value increases without depressant/collector, the isoelectric point of fluorite and calcite was located at approximately pH 7.5 and 9.0, separately, it was closed to the earlier investigations (Liu et al, 2021a;Liu et al, 2021;Shuai et al, 2023). In the presence of NaOl alone, both calcite and fluorite zeta potentials decreased which suggested that interaction occurred between fluorite/calcite and NaOl, this caused no selectively between fluorite and calcite (see Fig.…”

Section: Zeta Potentials Resultsmentioning

confidence: 79%

“…Regarding the calcite, Fig. 9a plotted that Ca2p3/2 and Ca 2p1/2 peaks of calcium carbonate were observed at the peaks of 346.81 eV and 350.35 eV (Liu et al, 2022, Zhou et al, 2023Zhang et al, 2023). When calcite surface was treated with PMAA, two new fitted peaks emerged at 347.58 eV and 351.10 eV (Fig.…”

Section: Xps Analysismentioning

confidence: 91%

“…Finally, the Forcite module was used for molecular dynamics simulation (MDs) to obtain the reaction kinetic behavior between molecules and crystal surfaces, illustrating the interaction mechanism between mineral surface and reagent (Luo et al, 2022;Feng et al, 2023). The structures of fluorite and calcite optimized in the CASTEP module on the basis of our early work (Liu et al, 2023). In fluorite crystal optimization, the exchange-correlation function was truncation energy was fixed at K-point was selected as GGA-PW91, 500 eV and 4×4×4.…”

Section: Computational Methods and Detailsmentioning

confidence: 99%

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Evaluation of a novel depressant PMAA for the separation of fluorite from calcite using NaOl as a collector

Zhang,

Li,

Qin

et al. 2024

Physicochem. Probl. Miner. Process.

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It is challenging to separate fluorite from calcite due to their same calcium activated sites on their surfaces. The copolymer of maleic and acylic acid (PMAA) was used to inhibit the calcite in the flotation of fluorite. Micro-flotation results exhibited that sodium oleate (NaOl) had a good ability to collect fluorite and calcite in the scope of pH 7-10. The PMAA treatment prior to NaOl selectively depressed the floatability of calcite while allowed the flotation of fluorite, and the artificial minerals mixture plotted that fluorite/calcite could be effectively separated in the presence of PMAA/NaOl. Zeta potential results suggested that NaOl collector was absorbed on the PMAA-conditioned calcite surface but did not adsorb on the PMAA-conditioned fluorite surface. XPS results and calculational chemistry revealed the chemical interaction occurred between calcite surface and PMAA which was attributed to the calcium ions of calcite surface interacting with -COOH group of PMAA.

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Section: Zeta Potentials Resultsmentioning

confidence: 79%

Section: Xps Analysismentioning

confidence: 91%

Section: Computational Methods and Detailsmentioning

confidence: 99%

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Evaluation of a novel depressant PMAA for the separation of fluorite from calcite using NaOl as a collector

Zhang,

Li,

Qin

et al. 2024

Physicochem. Probl. Miner. Process.

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“…scheelite and calcite [83]. This collector also exhibited good separation performance in the flotation of wolframite and calcite [84].…”

Section: Cationic Collectorsmentioning

confidence: 88%

“…The cationic collector mainly interacted with the negatively charged scheelite surface through electrostatic interactions and showed less adsorption on the positively charged calcite surface, which provided the selective separation of scheelite and calcite [83]. This collector also exhibited good separation performance in the flotation of wolframite and calcite [84].…”

Section: Cationic Collectorsmentioning

confidence: 98%

Research Progress with Scheelite Flotation Reagents: A Review

Lu,

Ding,

et al. 2023

Minerals

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With the depletion of easily mined and separated wolframite, scheelite has become the primary source of tungsten. Flotation is the primary technique used to enrich scheelite. However, flotation separation of scheelite from calcium-bearing gangue minerals, such as calcite and fluorite, has always been challenging due to their similar surface properties. To date, various flotation reagents and related mechanisms have been proposed for scheelite, which have attracted considerable attention. This paper reviews the scheelite flotation reagents, including collectors and regulators, and introduces recent research progress on the mechanisms for the interactions between the flotation reagents and mineral surfaces. The advantages and limitations of different flotation reagents are discussed. Inorganic or organic inhibitors in combination with fatty acids, chelate collectors, and cationic collectors are commonly used to separate scheelite from calcium-bearing gangue. Flotation differences between the scheelite and calcium-bearing minerals can be explained by variations in the electrical charges and steric hindrance at the mineral surfaces. In the future, fatty acid collectors will be still the main collectors used in scheelite flotation due to their low cost and strong collecting ability, and new collectors with high selectivity (such as metal complex collectors, new chelate collectors, new environmental collectors) will become a new research hotspot in the future due to their good selectivity.

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Efficient desorption and reuse of collector from the flotation concentrate: A case study of scheelite

Tao,

Wang,

Liao

et al. 2024

Int J Miner Metall Mater

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Flotation separation of wolframite from calcite using a new trisiloxane surfactant as collector

Cited by 24 publications

References 37 publications

Evaluation of a novel depressant PMAA for the separation of fluorite from calcite using NaOl as a collector

Evaluation of a novel depressant PMAA for the separation of fluorite from calcite using NaOl as a collector

Research Progress with Scheelite Flotation Reagents: A Review

Efficient desorption and reuse of collector from the flotation concentrate: A case study of scheelite

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