Results 31 to 40 of about 3,295 (213)

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

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

Morphological and functional effects of graphene on the synthesis of uranium carbide for isotopes production targets [PDF]

open access: yes, 2018
The development of tailored targets for the production of radioactive isotopes represents an active field in nuclear research. Radioactive beams find applications in nuclear medicine, in astrophysics, matter physics and materials science.
Amador-Celdran, P.   +7 more
core   +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

Recovery Of Valuable Metals In Tin-Based Anodic Slimes By Carbothermic Reaction

open access: yesArchives of Metallurgy and Materials, 2015
This study investigated the recovery of anodic slimes by carbothermic reaction in the temperature range of 973~1,273K and amount of carbon as a function of time. Tin anodic slime samples were collected from the bottom of the electrolytic cells during the
Han Chulwoong   +5 more
doaj   +1 more source

Influence of Material and Process Parameters on Reduction-Swelling Characteristics of Sintered Iron Pellets

open access: yesMetals, 2023
This paper investigates the use of shop-floor ferrous scrap that contains iron ore as a raw material for the purpose of making steel products through an in situ carbothermic reduction.
Kedarnath Rane   +2 more
doaj   +1 more source

Carbothermal reduction of red mud for iron extraction and sodium removal

open access: yesHigh Temperature Materials and Processes, 2022
In this work, the technology of carbothermic reduction was used to extract iron and remove sodium from red mud. The effect of various parameters like reduction time, temperature, and basicity on melting separation and de-alkalization was studied.
Feng Huaixuan   +5 more
doaj   +1 more source

Production of Welding Fluxes Using Waste Slag Formed in Silicomanganese Smelting [PDF]

open access: yes, 2016
The possibility in principle of using slag, which is formed in the silicon-manganese smelting process, in producing welding fluxes is shown. The composition of and technology used for a new fused flux has been designed.
Filonov, Andrey Vladimirovich   +4 more
core   +1 more source

Carbothermic Reduction of Bauxite Residue.

open access: yesShigen-to-Sozai, 1999
A recovery method of iron component as metallic phase from bauxite residue (red mud) discharged from Bayer process was examined. Tablets prepared with fine mixtures of red mud and carbonaceous materials were heated up to various temperatures to reduce iron oxides in the red mud.
Takaya KITAJIMA, Eiki KASAI
openaire   +2 more sources

Study on the Kinetics of Carbothermic Reduction of Stainless Steel Dust by Walnut Shell Biochar

open access: yesMetals
Stainless steel dust (SSD) is a by-product generated during the smelting process of stainless steel, which is rich in valuable metals such as Fe, Cr, Ni, and Mn.
Guoyu Cui   +5 more
doaj   +1 more source

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