Journal ArticleDOI
The flotation separation of scheelite from calcite using acidified sodium silicate as depressant
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TLDR
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.About:
This article is published in Minerals Engineering.The article was published on 2015-09-01. It has received 157 citations till now. The article focuses on the topics: Sodium silicate & Scheelite.read more
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Adsorption of a novel reagent scheme on scheelite and calcite causing an effective flotation separation.
TL;DR: It turns out that the selective chemisorption of SHMP on calcite (in the form of complexation between H2PO4-/HPO42- and Ca2+) over scheelite is ascribed to the stronger reactivity and higher density of Ca ions on the commonly exposed surfaces of calcite minerals.
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Froth flotation of scheelite – A review
Nathalie Kupka,Martin Rudolph +1 more
TL;DR: Froth flotation of scheelite has regained new focus since the 2010s and research regarding floatability and reagents has made great progress over the years as discussed by the authors. But due to similar properties, most attempts have limited success or only specific application (linked to a type of ore or a location).
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Fatty acid flotation versus BHA flotation of tungsten minerals and their performance in flotation practice
Haisheng Han,Yuehua Hu,Wei Sun,Li Xiaodong,Chonggao Cao,Runqing Liu,Tong Yue,Xiangsong Meng,Guo Yanzhe,Jianjun Wang,Zhiyong Gao,Pan Chen,Huang Weisheng,Liu Jie,Xie Jiawen,Chen Yulin +15 more
TL;DR: In this article, a new collector, lead complexes of benzohydroxamic acid, was found to be selective for the separation of scheelite and calcium minerals with little water glass, and a novel flotation process was developed for the recovery of tungsten minerals in Shizhuyuan Mine in China.
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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.
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Selective flotation of scheelite from calcite: A novel reagent scheme
TL;DR: In this paper, octyl hydroxamic acid (HXMA-8) was used as an associate collector with NaOl in scheelite flotation, and the flotation tests showed that a novel reagent scheme, i.e., a lower dosage of SS (300 mg/L) and mixed collectors of HXMA+NaOl (total concentration 4.5 ǫ −10 −4 Âmol/L, preferred mass ratio of 1:2).
References
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Journal ArticleDOI
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.
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Selective flotation of scheelite from calcium minerals with sodium oleate as a collector and phosphates as modifiers. II. The mechanism of the interaction between phosphate modifiers and minerals
Li Changgen,Lü Yongxin +1 more
TL;DR: In this paper, the effects of phosphate modifiers on the solubility of calcium minerals in water, on the surface charge of the minerals and on the adsorption of the phosphates and of sodium oleate on the mineral surface were examined.
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Selective flotation of scheelite from calcium minerals with sodium oleate as a collector and phosphates as modifiers. I. Selective flotation of scheelite
Lii Yongxin,Li Changgen +1 more
TL;DR: In this article, the effects of Na2SiO3, Na3PO4, Na4P2O7, (NaPO3)6, quebracho, tannic acid and S 808 (sulphonated product of rough phenantrene) on the floatability of the following pure minerals: scheelite, calcite, fluorite, garnet and quartz, with sodium oleate as collector were investigated in detail as well as the role of pH on these effects.
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Mechanism of oleate interaction on salt-type minerals, Part II. Adsorption and electrokinetic studies of apatite in the presence of sodium oleate and sodium metasilicate
TL;DR: In this article, the mechanism of oleate interaction on apatite through adsorption and electrokinetic studies was investigated through the analysis of electrokinetics data, and it was shown that the adsorbing density at monolayer coverage corresponds to a condensed state of surfactant molecule with a molecular area of 33 A 2.
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Mechanism of fatty acid adsorption in salt-type mineral flotation
TL;DR: In this article, the interaction of oleate with salt-type mineral surfaces has been summarized based on adsorption, infrared and zeta-potential measurements, and it was shown that the monolayer coverage correspond to a condensed state of OO with a molecular coverage area of 33 A 2 (liquid-crystal state).