Results 81 to 90 of about 3,295 (213)
Stepwise carbothermal reduction of bauxite ores
International Journal of Mineral Processing, 2013 Abstract The commercial technologies for aluminium production include production of alumina from bauxite and smelting of alumina to produce aluminium. The current technology is energy intensive, and a major source of greenhouse gas emissions and harmful fluoride emissions.
Yeh, Chun-Hung, Zhang, Guangqing
openaire +3 more sources
Synthesis of high purity rutile nanoparticles from medium-grade Egyptian natural ilmenite
Beni-Suef University Journal of Basic and Applied Sciences, 2015 The Egyptian magmatic ilmenite is classified as a medium-grade ore. The present work is an attempt to produce a high-quality TiO2 that can be used in several industries from this medium-grade raw material using the mechanical activation, carbothermic ...
Mohamed G. Shahien +4 more
doaj +1 more source
A metallurgical route to solar-grade silicon [PDF]
The aim of the process is to produce silicon for crystallization into ingots that can be sliced to wafers for processing into photovoltaic cells. If the potential purity can be realized, the silicon will also be applicable for ribbon pulling techniques ...
Schei, A.
core +1 more source
Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.Abstract The thermodynamic stability of six distinct compositions within the Zr—Ta—C ternary system is investigated in this study, marking the first report of their synthesis through carbothermic reduction in vacuum. A prolonged annealing process at 2200°C enabled high densification and phase equilibrium.
Maria Kosmidou +3 more
wiley +1 more source
International Journal of Ceramic Engineering & Science, 2020 Magnesiothermic reduction has received attention as a method to produce silicon retaining the morphology of the silicon dioxides that serve as the starting materials of the reduction.
Takashi Henmi +7 more
doaj +1 more source
Effect of physical parameters on the reaction of graphite with silica in vacuum [PDF]
Effect of physical parameters on reduction of silica graphite mixtures under vacuum ...
Haas, L. A., Khalafalla, S. E.
core +1 more source
Ultra-fast self-assembly and stabilization of reactive nanoparticles in reduced graphene oxide films. [PDF]
, 2016 Nanoparticles hosted in conductive matrices are ubiquitous in electrochemical energy storage, catalysis and energetic devices. However, agglomeration and surface oxidation remain as two major challenges towards their ultimate utility, especially for ...
Bao, Wenzhong +15 more
core +2 more sources
Metals, 2018 A solid reduction process is described whereby chromite is reduced with the help of calcium chloride to produce ferrochrome alloy powders with high metal recovery. The process involves segregation reduction of chromite using graphite as the reductant and
Dawei Yu, Dogan Paktunc
doaj +1 more source
Microstructure Evolution and Phase Transformation of Iron Produced from the Sustainable Carbothermic Reduction Process of High-Pressure Acid Leaching Residue. [PDF]
ACS Omega, 2023 Setiawan A +4 more
europepmc +1 more source
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навукA brief review and critical evaluation of the literature related to the mechanism of carbothermic reduction of silicon oxide is presented. To resolve the contradictions in the literature data about the number of chemical reactions and key intermediate ...
V. B. Shcherbakova, P. S. Grinchuk
doaj +1 more source