An in situ ATR-FTIR study of mixed collectors BHA/DDA adsorption in ilmenite-titanaugite flotation system

Luo, Liping; Wu, Houqin; Xu, Longhua; Meng, Jinping; Lu, Jiong; Zhou, Huan; Huo, Xiaomei; Huang, Lingyun

doi:10.1016/j.ijmst.2021.05.001

Cited by 58 publications

(5 citation statements)

References 55 publications

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“…This study indicated that the large steric hindrance and lattice mismatch between collector and minerals impede the interaction of mineral surface, the lattice matching promotes the adsorption of collector on target mineral while rendering the high selectivity of collector in minerals flotation separation system. Li et al Xu et al, 2015;Luo et al, 2021) demonstrated the mechanism that N-hydroxy-N-arylamides formed a five-membered-ring complex onto the malachite surfaces by chemisorption through the reactions of the C=O and -NOH groups, which was in accordance with the adsorption mechanism of malachite with the tertbutylsalicylaldoxime. Yu et al(2021) synthesized cinnamichydroxamic acid(CHA) by adding carbon chain to benzohydroxamic acid and successfully separated malachite against calcite though the chemical adsorption of CHA on malachite surfaces.…”

Section: Introductionmentioning

confidence: 71%

Synthesis of a novel hydroxamic acid flotation collector and its flotation separation of malachite against quartz

Sun¹,

Huang²,

Wen³

et al. 2022

Physicochem. Probl. Miner. Process.

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This paper proposes a promising chelating collector, phenyl propyl hydroxamic acid (BPHA), to directly float malachite for the separation of malachite against quartz. The flotation performance and mechanism was investigated via microflotation tests, as well as through contact angle, Scanning Electron Microscopeand Energy Dispersive Spectrometer (SEM-EDS), zeta potential, adsorption capacity, Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS) analyses. The results of microflotation tests showed that BPHA has a strong ability to collect malachite and a significant selectivity against quartz. The contact angle tests showed that BPHA effectively adsorbed onto the mineral surface and could improve the hydrophobicity of the malachite surface. SEM-EDS and adsorption capacity analyses further indicated that BPHA adsorbed onto the surface of malachite. The FR-IR results suggested that BPHA could react with Cu 2+ ions and facilitate strong chemical adsorption onto the surface of malachite. Furthermore, zeta potential and XPS analyses provided clear evidence that BPHA exhibited a stronger affinity for malachite and a weaker interaction with quartz.

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Section: Introductionmentioning

confidence: 71%

Synthesis of a novel hydroxamic acid flotation collector and its flotation separation of malachite against quartz

Sun¹,

Huang²,

Wen³

et al. 2022

Physicochem. Probl. Miner. Process.

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“…They found that the BHA-DDA complex adsorbed on the surface of ilmenite through chemical adsorption of BHA and electrostatic adsorption of DDA. In contrast, the complex exhibited unstable adsorption on titaniferous diopside [14].…”

Section: Introductionmentioning

confidence: 95%

Influence of Different Types of Surfactants on the Flotation of Natural Quartz by Dodecylamine

Ao,

Han,

Kong

et al. 2024

Molecules

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The synergistic effect among flotation agents is why combined flotation agents exhibit superior performance compared to single flotation agents. This research investigates the influence of three surfactants with different charges of polar groups, sodium dodecyl sulfate (SDS), cetyltrimethylammonium bromide (CTAB), and octanol, combined with dodecylamine (DDA), on quartz flotation. Through the implementation of flotation tests, bubble–particle adhesion induction time testing, gas–liquid two-phase foam properties testing, and surface tension testing, it is revealed that substituting part of the DDA with these surfactants can either enhance or at least maintain the quartz recovery, affect the adhesion induction time, reduce the surface tension of the flotation system, and change the foaming performance and foam stability, depending on their mole ratio in the combined collector. Compared to DDA alone, combining CTAB or OCT with DDA can significantly increase quartz recovery, while SDS with DDA only yields an approximate recovery. Combining SDS or OCT with DDA can reduce the foam stability, while CTAB with DDA enhances the foam stability. The effect of the combination of surfactants and DDA on the adhesion induction time of quartz grains of different sizes with bubbles is the same; furthermore, there is a negative correlation between the adhesion induction time and the recovery, while the foaming properties and stability of foam are positively correlated with the recovery.

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“…Bao et al [38] used a terpolymer collector composed of oleic acid, methyl oleate, and diesel oil to achieve enhanced selectivity, collection, and dispersion ability. Luo et al [39] used benzohydroxamic acid and dodecylamine as a compound collector and noted that dodecylamine enhanced the selectivity and collection ability of benzohydroxamic acid through co-adsorption. Qiao et al [40] improved the solubility and collection ability of dodecadine by combining it with 2-octanol-kerosene.…”

Section: Introductionmentioning

confidence: 99%

Composite Collectors for the Flotation of Refractory Alkaline Rock-Type Rare-Earth Ores

Li,

Liu,

Liu

et al. 2023

Minerals

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Alkaline rock-type rare-earth (RE) ores have significant utilisation value. However, the exploitation of such resources faces great challenges owing to the complex mineral and element assemblages. Composite collectors exhibit excellent performances, which may provide solutions to the flotation problem of alkaline rock-type RE ores. Therefore, 16 collectors typically used in RE ores flotation were selected. Flotation tests were performed to identify collectors with high selectivity and collection ability for RE minerals, then nine composite collectors were prepared by combining the satisfactory collectors. The flotation performances of single and composite collectors for RE minerals were examined, and the composite collector FA301 with different carbon chain lengths was identified as the best one. When FA301 was applied in optimal conditions of slurry temperature, grinding size, collector and inhibitor dosage, RE concentrate yield of 6.29%, REO grade of 32.013%, and recovery of 59.02% were achieved. According to the results of the zeta potential, FTIR, and XPS test, the functional groups (dominated by carboxyl groups) in FA301 chemically adsorbed onto the main active sites (La, Ce, Y, etc.) on the surface of RE minerals. The findings can provide scientific basis for the development of efficient collectors to facilitate the exploitation of RE resources.

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An in situ ATR-FTIR study of mixed collectors BHA/DDA adsorption in ilmenite-titanaugite flotation system

Cited by 58 publications

References 55 publications

Synthesis of a novel hydroxamic acid flotation collector and its flotation separation of malachite against quartz

Synthesis of a novel hydroxamic acid flotation collector and its flotation separation of malachite against quartz

Influence of Different Types of Surfactants on the Flotation of Natural Quartz by Dodecylamine

Composite Collectors for the Flotation of Refractory Alkaline Rock-Type Rare-Earth Ores

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