Results 11 to 20 of about 3,717 (223)

The Interaction Force between Scheelite and Scheelite/Fluorite/Calcite Measured Using Atomic Force Microscopy

open access: yesJournal of Chemistry, 2020
The mechanism of the formation of the hydrophobic agglomerate in fine scheelite flotation was studied using zeta potential measurement, contact angle measurement, optical microscope measurement, and atomic force microscopy (AFM) colloid probe technology.
Junyan Yang   +5 more
doaj   +2 more sources

Preparation of cinnamic hydroxamic acid collector and study on flotation characteristics and mechanism of scheelite

open access: yesInternational Journal of Mining Science and Technology, 2023
In this paper, using methyl cinnamate as raw material, the new cinnamic hydroxamic acid collector (CIHA) was synthesized by the hydroxylamine method. The collector performance of hydroxamic acid was investigated for scheelite and gangue calcite, and the ...
Xiang Yao   +9 more
doaj   +1 more source

Ultra-low thermal conductivity in scheelite and A-deficient scheelite ceramics

open access: yesScripta Materialia, 2021
Abstract Synthesis of scheelite-type oxides based on lanthanum and barium molybdate (BaMoO 4 and La 2 Mo 3 O 12 ceramics) were successfully prepared via conventional solid-state reaction method. Dense ceramics were obtained by conventional sintering. Structural, microstructural and thermal properties of both sintered
Bsaibess, Eliane   +3 more
openaire   +2 more sources

The Challenge of Tungsten Skarn Processing by Froth Flotation: A Review

open access: yesFrontiers in Chemistry, 2020
Recently, tungsten has drawn worldwide attention considering its high supply risk and economic importance in the modern society. Skarns represent one of the most important types of tungsten deposits in terms of reserves.
Yann Foucaud   +4 more
doaj   +1 more source

Kinetics of Low-Grade Scheelite Leaching with a Mixture of Sodium Phosphate and Sodium Fluoride

open access: yesMetals, 2022
The current technology of leaching low-grade scheelite with sodium hydroxide or sodium carbonate has the disadvantages of large leaching reagent dosage and low leaching efficiency of tungsten.
Liang Yang   +5 more
doaj   +1 more source

Application of EDTMPS as a novel calcite depressant in scheelite flotation

open access: yesInternational Journal of Mining Science and Technology, 2023
In this study, the innovative use of ethylenediamine tetramethylene phosphonic sodium (EDTMPS) as a calcite depressant in scheelite flotation was investigated by flotation experiments, and its selective depression mechanism was revealed by contact angle ...
Fen Jiao   +6 more
doaj   +1 more source

In situ Trace Element and Sr Isotope Composition of Scheelite in the Xiuwacu Molybdenum-Tungsten Deposit, Northwest Yunnan: Constraints on Mineralization

open access: yesYankuang ceshi, 2020
OBJECTIVES The Xiuwacu Mo-W deposit is a typical hydrothermal quartz vein deposit in the Yidun island arc Cu-Mo metallogenic belt, northwest Yunnan. Numerous studies have been conducted on rock and ore chronology and petrogenesis, dynamics, but its ore ...
WANG Zhong-qiang   +7 more
doaj   +1 more source

Effect and mechanisms of sodium carbonate on the auto-carrier flotation of scheelite

open access: yes工程科学学报, 2019
Because of the low recovery of -10 μm fine scheelite particles in scheelite flotation, some amount of fine scheelite is lost in the tailing, resulting in the wasting of scheelite resources.
WANG Ji-zhen   +2 more
doaj   +1 more source

The perigranitic W-Au Salau deposit (Pyrenees, France): polyphase genesis of a late Variscan intrusion related deposit

open access: yesBSGF - Earth Sciences Bulletin, 2021
A field study combined with a laboratory study and 3D modeling have been performed in order to decipher the genesis of the Salau deposit W-Au mineralization (Pyrenees, France), one of the most important for tungsten in Europe.
Poitrenaud Thomas   +3 more
doaj   +1 more source

Preparability research on metasomatic ores and rocks of “Vostok-2” deposit

open access: yesE3S Web of Conferences, 2018
The research for examination of elemental composition of typical metasomatic rocks and ores have been carried out According to the data of mineral and petrographic analysis of twenty transparent sections in parallel and crossed Nicols, specific ...
Samatova Luiza, Shepeta Elena
doaj   +1 more source

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