Journal ArticleDOI
Utilization of pyrogallol in flotation separation of scheelite from calcite
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TLDR
Scheelite is a typical tungsten-containing mineral and usually co-exists with calcite in deposits and the flotation separation of scheelite from calcite is hard work in mineral processing.Abstract:
Scheelite is a typical tungsten-containing mineral and usually co-exists with calcite in deposits. The flotation separation of scheelite from calcite is a hard work in mineral processing. In this p...read more
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Investigations on flotation separation of scheelite from calcite by using a novel depressant: Sodium phytate
TL;DR: In this article, the results of zeta potential measurements and FTIR spectra analysis demonstrated that sodium phytate adsorbed on the calcite surface and hindered the subsequent chemisorption of sodium oleate.
Journal ArticleDOI
Depression behavior and mechanism of pyrogallol on bismuthinite flotation
TL;DR: In this article, the effect of pyrogallol on the flotation performance of bismuthinite was evaluated using flotation tests, and associated interaction mechanisms were investigated by using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrography (XPS), and density functional theory (DFT) calculations.
Journal ArticleDOI
Interfacial microstructures and adsorption mechanisms of benzohydroxamic acid on Pb2+-activated cassiterite (1 1 0) surface
TL;DR: In this paper, the interfacial microstructures and adsorption mechanisms of benzohydroxamic acid (BHA) on Pb2+-activated cassiterite (1.1.0) surface were investigated by means of Raman spectroscopy, atomic force microscopy (AFM), X-ray photoelectron spectra, high-resolution transmission electron microscopy, and density functional theory (DFT) calculations.
Journal ArticleDOI
Pyrogallic acid as depressant for flotation separation of pyrite from chalcopyrite under low-alkalinity conditions
TL;DR: In this article, the effect of pyrogallic acid on the flotation separation of chalcopyrite and pyrite was investigated, and it was shown that pyrogaline acid significantly reduced the amount of sodium butyl xanthate adsorption on the pyritic surface.
Journal ArticleDOI
A-Site FA+ Doping-Enhanced Photoluminescence Efficiency and Photostability of Mn-Doped Perovskite Nanocrystals
Zitong Wang,Xinghai Yuan,Lei Han,Jiaming Li,Xinzhi Lanzhou Zhang,Jie Hua,Jing Wang,Jialong Zhao,Haibo Li +8 more
TL;DR: In this article , the optical and structural stability of highly luminescent Mn2+-doped perovskite nanocrystals (NCs) under ultraviolet illumination was improved by incorporating an appropriate FA+ amount into the crystal lattice.
References
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Journal ArticleDOI
The flotation separation of scheelite from calcite using acidified sodium silicate as depressant
TL;DR: In this paper, the authors studied the flotation separation of scheelite from calcite using sodium oleate as collector and acidified sodium silicate as depressant and showed that the use of acidified salt as a depressant can achieve a 3:1 ratio of the ratio of oxalic to salt.
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Anisotropic surface energies and adsorption behaviors of scheelite crystal
TL;DR: Anisotropic surface broken bond densities and surface energies of six surfaces of scheelite were calculated with density functional theory (DFT) as discussed by the authors, and the calculation results show that its surface energy is directly proportional to its surface broken-bond density.
Journal ArticleDOI
The effect of sodium alginate on the flotation separation of scheelite from calcite and fluorite
TL;DR: In this paper, the effect of sodium alginate on the flotation separation of scheelite from calcite and fluorite using sodium oleate as collector was investigated using zeta potential measurements, contact angle measurements and FTIR.
Journal ArticleDOI
Molecular Modeling of Interactions of Alkyl Hydroxamates with Calcium Minerals
Pradip,Beena Rai,T. K. Rao,Shailaja Krishnamurthy,R. Vetrivel,Jerzy A. Mielczarski,Jean-Maurice Cases +6 more
TL;DR: In this paper, the results of theoretical computations on the molecular modeling of mineral-reagent interactions in a fluorite-calcite-fluorapatite-alkyl hydroxamate separation system were found to correlate remarkably well with the experimental microflotation test results.