Results 71 to 80 of about 3,717 (223)

Exploration of the Beneficiation Process of a Complex Tungsten Ore and the Comprehensive Utilization of Tailings in Inner Mongolia

Kuangchan zonghe liyong
[Objective] The mineral composition of the tungsten ore in Inner Mongolia is complex. Its metallic minerals are mainly scheelite and wolframite, and its non-metallic mineral is mainly fluorite. In the ore, the content of scheelite is slightly higher than
Qin ZENG, Lili FAN, Honggel TONG
doaj   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Comparative geochemical study of scheelite from the Shizhuyuan and Xianglushan tungsten skarn deposits, South China: Implications for scheelite mineralization

, 2019
Scheelite has been analyzed from the Shizhuyuan and the Xianglushan world-class W deposits from the Nanling W–Sn region and Jiangnan W belt, respectively. The Shizhuyuan deposit consists of proximal skarn and greisen W–Sn–Mo–Bi and distal Pb–Zn–Ag veins.
Yang, Yuping, Mao, Jingwen, Yao, Fojun, Sun, Weidong, Wu, Shenghua, Ireland, Trevor, Zhao, Zheng   +6 more
core   +1 more source

Photoelectrochemical Hydrogen Peroxide Production via Simultaneous Reduction and Oxidation Processes

Chemistry – A European Journal, Volume 32, Issue 14, 15 April 2026.
Hydrogen peroxide (H2O2) is an important chemical substance and also a promising carbon‐free clean fuel. The design of a sophisticated photoelectrochemical (PEC) reaction system enables the solar‐driven H2O2 production through simultaneous water oxidation and oxygen reduction processes (H2O2/H2O2‐PEC cells).
Tetsuro Soejima, Shin‐ichi Naya, Hiroaki Tada   +2 more
wiley   +1 more source

DISSOLUTION BEHAVIOUR OF IMPURITIES FROM SCHEELITE IN OXALIC ACID SOLUTIONS

, 2021
Scheelite is the main raw material in tungsten production. In hydrometallurgical processes, extraction of tungstate ions into solution is very important.
Kahruman, Cem, Ilhan, Sedat, Yusufoglu, Ibrahim, Kalpakh, Ahmet Orkun   +3 more
core  

Quantification of Alkali‐Fluoride Nanoparticle Dissolution in Aqueous Media as a Function of Crystallinity and Surface Modification

Particle &Particle Systems Characterization, Volume 43, Issue 3, March 2026.
Fluoride release kinetics from uncoated and coated β−NaYF4$\ubeta-{\rm NaYF}_4$ and LiYF4${\rm LiYF}_4$ in aqueous solutions are quantified using an ion‐selective electrode coupled to a dialysis compartment. TEM/DLS/ICP‐OES and speciation‐aware modeling complement the fluoride release results.
Sophia J. Baumann, Thomas Hirsch, Thomas Baumann   +2 more
wiley   +1 more source

Study of the Mechanism of the Fe-BHA Chelates in Scheelite Flotation

, 2022
Scheelite associated with calcium-containing minerals such as calcite and fluorite is difficult to separate by flotation because of the Ca ions contained in the mineral lattices, which cause scheelite to have similar surface properties and floatability ...
Yimin Zhu, Wanzhong Yin, Chen Zhao, Chuanyao Sun, Yangge Zhu   +4 more
core   +1 more source

High Performance Flexible Optical Fiber Sensor Enabled by Er3+/Yb3+ Co‐Doped near Pure‐Green Upconversion Emission Phosphor for Implantable Temperature Sensing

Advanced Materials Interfaces, Volume 13, Issue 4, 17 February 2026.
A superior double‐cladding optical fiber temperature sensor (OFTS) is fabricated by utilizing a bright and stable near‐pure green UC phosphor NaLu(WO4)2:Er3+/Yb3+ as sensing material. The OFTS exhibits a high temperature measurement accuracy of 0.155°C at 303 K, excellent measuring repeatability and chemical stability, along with strong resistance to ...
Jing Lyu, Sijie Su, Xin Wang, Enhai Song, Qinyuan Zhang   +4 more
wiley   +1 more source

Redox Cycling and Restructuring of Silica‐Supported Bismuth Molybdate Catalysts

ChemCatChem, Volume 17, Issue 23, December 8, 2025.
Redox‐induced surface and bulk restructuring of unsupported and silica‐supported α‐bismuth molybdate (Bi2Mo3O12) were analyzed using ex‐situ and in‐situ techniques such as XPS and XAS and supported by DFT calculations. Redox cycling of Bi2Mo3O12 reveals reversible bulk and surface transformations that progressively become irreversible with cycling ...
Tanmayi Bathena, Kenneth L. Kusima, Dimitri Gatzios, Malik W. Arshad, Kavin Chakravarthy Thangaraj, Bhuvaneswari M Sivakumar, Venkateshkumar Prabhakaran, Lucas D. Ellis, Vijayakumar Murugesan, Karthikeyan Ramasamy, Lars C. Grabow, Konstantinos A. Goulas, Ajay S. Karakoti   +12 more
wiley   +1 more source

Coarse Froth Flotation to Optimise Scheelite Recovery

The flotation of coarse-sized particles is an important step in the pathway to sustainable recovery as it can reduce reagents usage, energy consumption, and environmental impact, as well as minimise overgrinding.
Emmanuel Dogara Musa, Greg Doherty, Mohammadbagher Fathi, Marcus Mollison, Julie Hunt, Owen P. Missen   +5 more
core   +1 more source