Journal ArticleDOI
Anisotropic surface energies and adsorption behaviors of scheelite crystal
TLDR
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.About:
This article is published in Colloids and Surfaces A: Physicochemical and Engineering Aspects.The article was published on 2012-12-05. It has received 138 citations till now. The article focuses on the topics: Surface energy & Contact angle.read more
Citations
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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.
Journal ArticleDOI
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.
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
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
Special points for brillouin-zone integrations
Hendrik J. Monkhorst,J.D. Pack +1 more
TL;DR: In this article, a method for generating sets of special points in the Brillouin zone which provides an efficient means of integrating periodic functions of the wave vector is given, where the integration can be over the entire zone or over specified portions thereof.
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Ground state of the electron gas by a stochastic method
David M. Ceperley,Berni J. Alder +1 more
TL;DR: An exact stochastic simulation of the Schroedinger equation for charged Bosons and Fermions was used to calculate the correlation energies, to locate the transitions to their respective crystal phases at zero temperature within 10%, and to establish the stability at intermediate densities of a ferromagnetic fluid of electrons.
Journal Article
The ground state of the electron gas by a stochastic method
TL;DR: The results of the election were reported by the National Resource for Computing in Chemistry (NCI) as discussed by the authors, a non-profit organization for information technology in the chemical industry, which is based at the Berkeley Lab.
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UFF, a full periodic table force field for molecular mechanics and molecular dynamics simulations
TL;DR: In this article, the Universal force field (UFF) is described, where the force field parameters are estimated using general rules based only on the element, its hybridization, and its connectivity.
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Iterative minimization techniques for ab initio total-energy calculations: molecular dynamics and conjugate gradients
TL;DR: In this article, the authors describe recent technical developments that have made the total-energy pseudopotential the most powerful ab initio quantum-mechanical modeling method presently available, and they aim to heighten awareness of the capabilities of the method in order to stimulate its application to as wide a range of problems in as many scientific disciplines as possible.