Results 21 to 30 of about 3,242 (195)

Cobalt Boride (Co2B) Particle Synthesis by One-step Carbothermic Reduction

open access: yesHittite Journal of Science and Engineering, 2023
In this study, crystalline Co2B powder production was carried out by a one-step carbothermal reduction method starting from cheap, easily accessible oxide-based materials.
Levent Kartal
doaj   +1 more source

Carbothermal Reduction of SiO2 using different coal

open access: yesSilicon, 2023
Abstract In this study, the carbon thermal reduction of agglomerate composed of pure silica and carbon was studied at 1898 K, 1923 K, and 1948 K. The main product of this reaction is silicon carbide. Compare the reduction effects of four types of coal from different industrial silicon enterprises on the analysis of pure silica, and explore the ...
Fei Li   +3 more
openaire   +1 more source

Systematic study on separation of Mn and Fe from ferruginous manganese ores by carbothermic reduction roasting process: Phase transformation and morphologies

open access: yesJournal of Materials Research and Technology, 2019
Carbothermic roasting reduction followed by magnetic separation process is reported as an effective technological process to separation and recovery of Fe and Mn from low-grade ferruginous manganese ores (Fe–Mn ores) as an acceptable feed to meet the ...
Lihua Gao   +5 more
doaj   +1 more source

Study on Vacuum Roasting Pretreatment of Carbonaceous Gold Concentrates Based on Nonoxidation Technology

open access: yesJournal of Chemistry, 2021
Carbonaceous gold ores are difficult to treat because of the “preg-robbing” by carbonaceous matters and locking by minerals. Roasting is the most commonly used method that is useful in dealing with carbonaceous gold ores.
Xinwei Zhang   +4 more
doaj   +1 more source

Synthesis of Ferroalloys via Mill Scale-Dross-Graphite Interaction: Implication for Industrial Wastes Upcycling

open access: yesMetals, 2022
Mill scale and aluminum dross are the industrial wastes from steel and aluminum industries, which have high concentrations of Fe2O3 and Al2O3, respectively.
Praphaphan Wongsawan   +2 more
doaj   +1 more source

Carbothermic Reduction by Microwave Heating

open access: yesISIJ International, 2001
The carbothermic reduction of iron ores is the most important reaction in ironmaking and has been performed mainly in the Blast Furnace. In the last years, several new processes have been proposed as alternatives, and many types of reactors have been tested. The most promising processes are those in which a mixture of iron ore and carbonaceous material
Marcelo Breda Mouräo   +2 more
openaire   +2 more sources

Antimony production by carbothermic reduction of stibnite in the presence of lime [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2014
Experimental work on the carbothermic reduction of Sb2S3 in the presence of lime was carried out in the temperature range of 973 to 1123 K to produce antimony in an environmentally friendly manner.
Padilla R., Chambi L.C., Ruiz M.C.
doaj   +1 more source

Ultrapurification of Silicon for Photovoltaic Applications [PDF]

open access: yes, 2010
The recent explosive growth of Photovoltaics and the relative avidity for silicon of the predominant solar cell technology have resulted in a dramatic change of the polysilicon industry structure. While in the past the polysilicon was manufactured almost
Cañizo Nadal, Carlos del   +2 more
core   +2 more sources

Preparation of Neptunium Mononitride by Carbothermic Reduction [PDF]

open access: yesJournal of Nuclear Science and Technology, 1994
Neptunium mononitride with carbon and oxygen contents of less than 1,000 ppm was prepared by the carbothermic reduction of NpO2 in flowing N2 gas at 1,823 K, followed by the removal of excess carbon in a N2-H2 mixed gas stream at 1,723 K. It is suggested from the present result and also the consideration on the chemical form of residual carbon in ...
Yasufumi SUZUKI   +3 more
openaire   +1 more source

Tostación de sulfuros por reducción carbotérmica

open access: yesDyna, 2016
El proceso de reducción carbotérmica es una reducción directa de sulfuros. Permite realizar una tostación en donde se obtienen concentraciones mayores de metales como molibdeno, empleando un agente reductor (en este caso, el carbón C) y un captador de ...
Ivana Marcela Orozco Santander   +3 more
doaj   +1 more source

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