Results 21 to 30 of about 12,098 (304)

Application of lanthanides tetrad effect as a geochemical indicator to identify fluorite generations: A case study from the Laal-Kan fluorite deposit, NW Iran

Comptes Rendus. Géoscience, 2020
The Laal-Kan fluorite deposit situated in north margin of the Sanandaj-Sirjan metamorphic belt and Urmia-Dokhtar magmatic arc, NW Iran. The fluorite mineralization in the form of open-space filling, veins and veinlets have been deposited in the contact ...
Rezaei Azizi, Mansour, Abedini, Ali, Alipour, Samad   +2 more
doaj   +1 more source

Shine on you crazy diamond: Symbolism and social use of fluorite ornaments in Iberia’s late prehistory

Journal of Lithic Studies, 2021
Fluorite ornaments have been recorded in different sites of Europe since Upper Paleolithic. Due to its visual appearance and physical properties, some translucent or transparent mineralogies like fluorite were searched for or casually acquired by late ...
José Ángel Garrido-Cordero, Carlos P. Odriozola, Ana C. Sousa, Victor S. Gonçalves, João Luís Cardoso   +4 more
doaj   +1 more source

Mechanism of Preparing Hydrofluoric Acid from Low-grade Associated Fluorite

Kuangchan zonghe liyong
[Objective]Single type fluorite is currently the primary raw material for hydrofluoric acid production. However, its reserves are insufficient, with a guarantee life of around ten years.
Xu YANG, Yubiao LI, Yuan ZHANG, Shunxin XIE, Shaoxian SONG, Peng CHEN   +5 more
doaj   +1 more source

Experiment on Optimization of Comprehensive Recovery Process of a Tungsten Ore in Inner Mongolia

Kuangchan zonghe liyong
A tungsten ore in Inner Mongolia contains fluorite resources. Due to the loss of fluorite in the original process of fatty acid tungsten flotation and the influence of magnetic gangue, the comprehensive recovery of fluorite is low and the grade of ...
Jialin ZHONG, Di WU, Hongling WANG, Chao LIU, Chenlong LI   +4 more
doaj   +1 more source

Comparison Between Performance of Fluorite Flotation Under Different Depressants Reagents in Two Pieces of Laboratory Equipment

Applied Sciences, 2020
Fluorite is an important industrial mineral composed of calcium and fluorine (CaF2). This mineral is widely distributed through different deposits. However, in most cases, fluorite is tightly associated with gangue, such as calcite and quartz.
J. R. Corpas-Martínez, A. Pérez, R. Navarro-Domínguez, C. Amor-Castillo, M. A. Martín-Lara, M. Calero   +5 more
doaj   +1 more source

Expanded Continuous Test for Comprehensive Utilization of a Rare Earth and Associated Fluorite Resources in Henan

Kuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. In this paper, a rare earth and associated fluorite resource in Henan Province was studied.
Zheng Zhou, Anni Ouyang, Wenliang Xiong, Lijun Zhang, Da Chen, Huijie Lin   +5 more
doaj   +1 more source

Anharmonic specific heat of solid UO2

, 1981
The specific heat of UO2 and related fluorite crystals contains a contribution from the anharmonic motion of the anion. We evaluate this term using thermodynamic perturbation theory and known parameters from neutron experiments.
Hyland, GJ, Stoneham, A.M., Hyland, G.J., Stoneham, AM   +3 more
core   +1 more source

Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite

Nanomaterials, 2023
An ultrashort-pulse laser inscription of embedded birefringent microelements was performed inside bulk fluorite in pre-filamentation (geometrical focusing) and filamentation regimes as a function of laser wavelength, pulsewidth and energy.
Sergey Kudryashov, Alexey Rupasov, Mikhail Smayev, Pavel Danilov, Evgeny Kuzmin, Irina Mushkarina, Alexey Gorevoy, Anna Bogatskaya, Alexander Zolot’ko   +8 more
doaj   +1 more source

Optimal Depressants and Collector Dosage in Fluorite Flotation Process Based on DoE Methodology

Applied Sciences, 2019
Alternative processes have been proposed for selective separation of fluorite and gangue minerals (carbonates and silicates) present in fluorspar ores.
J.R. Corpas-Martínez, A. Pérez, C. Amor-Castillo, R. Navarro-Domínguez, M.A. Martín-Lara, M. Calero   +5 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source