Results 61 to 70 of about 3,242 (195)
Kinetics and reduction mechanism of non-isothermal analysis carbothermal reduction of zinc ferrite
The amount of zinc-containing EAF dust has increased due to the increased proportion of galvanized steel scrap used in the electric arc furnace (EAF) steelmaking process.
Yang LI +6 more
doaj +1 more source
Carbothermal reduction of bauxite
The commercial technologies for aluminium production include production of alumina from bauxite by the Bayer process and smelting of alumina to produce aluminium by Hall-Heroult process. The current technology is energy intensive, a major source of greenhouse gas emissions and harmful fluoride emissions.
openaire +2 more sources
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
Light-weight ferro-aluminium alloys are finding increasing application in the transport sector to reduce overall weights, energy costs and CO2 emissions. As the primary production processes of both Fe and Al are among the most energy-intensive industrial
Muhammad Ikram-Ul-Haq +2 more
doaj +1 more source
Ultra-fine Mo–Cu composite powders with the different Cu contents (5%, 20%, 40%, mass fraction) were prepared by the method of "carbothermic pre-reduction by insufficient carbon and deep deoxidation by hydrogen".
WANG Jing-Fei +6 more
doaj +1 more source
Alkali roasting of bomar ilmenite: rare earths recovery and physico-chemical changes. [PDF]
In this work, the alkali roasting of ilmenite (FeTiO3) is presented as a process route for integrated beneficiation of the mineral for rutile-rich phase and rare earth oxides; the latter is released as a consequence of physical changes in the ilmenite ...
Jha, A, Lahiri, A, Sanchez Segado, S
core +2 more sources
This study investigated thermal decomposition and surface changes of lithium nickel manganese cobalt oxide (NMC) cathode, graphite anode, and polymeric separator from 100 to 800 °C, focusing on the 400–650 °C industrial range. A 500 °C treatment was optimal, removing all organic carbon within 1 h while preserving the NMC spinel structure and preventing
Anna Pražanová +5 more
wiley +1 more source
Use of Technogenic Silica Fume and Brown Coal Semi-Coke in the Technology of Silicon Carbide [PDF]
The paper describes thermodynamic experiments to determine the optimal temperature and time modes for the carbide production process from the briquette charge comprising silica fume and brown coal semi-coke, conditions for chemical enriching of silicon ...
Anikin, A. E. +4 more
core +1 more source
Battery‐Grade Lithium Materials: Virgin Production and Recycling, a Techno‐Economic Comparison
With this study a framework has been created to analyze new innovative lithium compound manufacturing processes for their cost and environmental competitiveness. This analysis includes details on virgin and recycled pathways to produce lithium carbonate or lithium hydroxide monohydrate.
Sabine M. Gallagher +3 more
wiley +1 more source
An investigation on the formation mechanism of nano ZrB2 powder by a magnesiothermic reaction [PDF]
Nanocrystalline zirconium diboride (ZrB2) powder was produced by mechanochemistry from the magnesiothermic reduction in the Mg/ZrO 2/B2O3 system. The use of high-energy milling conditions was essential to induce a mechanically induced self-sustaining ...
Bafghi, M. Sh +3 more
core +1 more source

