Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Rashid Nadirov"'
Autor:
Tlek Ketegenov, Igor Vongay, Oksana Chervyakova, Bakhyt Kalmuratova, Anton Kononov, Kaster Kamunur, Rashid Nadirov
Publikováno v:
Materials, Vol 17, Iss 19, p 4890 (2024)
This study investigates the feasibility of using an Al-Si eutectic alloy as a reactive fuel in energetic mixtures. Al-Si eutectic alloy powders were obtained from secondary resources and ground to a particle size of less than 100 μm. We examined the
Externí odkaz:
https://doaj.org/article/fbf31e868e0a49a79293a17cec6be115
Publikováno v:
Metals, Vol 14, Iss 9, p 1052 (2024)
This study investigates the ultrasound-assisted leaching of Li and Co from spent batteries using a deep eutectic solvent (DES) composed of polyethylene glycol and thiourea. The synergistic effect of ultrasound and DESs was explored to enhance the eff
Externí odkaz:
https://doaj.org/article/2dbffeb8f55d44ae8577aecc981fb6da
Publikováno v:
Minerals, Vol 14, Iss 7, p 693 (2024)
The study investigates the application of high-voltage electrical pulses (HVEP) as a pretreatment to enhance the leaching efficiency of rare earth elements (REE) from coal ash (CA) produced from the combustion of Ekibastuz Basin coal in Almaty, Kazak
Externí odkaz:
https://doaj.org/article/c1ab6687817147049c6e3f832d1e872f
Autor:
Kazim Nadirov, Manap Zhantasov, Tlek Ketegenov, Zhanna Nadirova, Aisulu Batkal, Kaster Kamunur, Gulmira Bimbetova, Rashid Nadirov
Publikováno v:
Fluids, Vol 9, Iss 6, p 121 (2024)
Oil transportation becomes much more complicated due to the solidification of paraffins in them at low temperatures and the resulting increase in oil viscosity. To solve this problem, special additives as pour point depressants (PPDs) are used to pre
Externí odkaz:
https://doaj.org/article/5eb4a65e222c4754a4d8c235676e6239
Publikováno v:
Minerals, Vol 14, Iss 6, p 532 (2024)
Copper smelting flue dust (CFD) is a byproduct of pyrometallurgical copper production, containing valuable metals like lead, zinc, and copper, but also hazardous arsenic, which complicates its handling and recycling. Traditional methods for arsenic r
Externí odkaz:
https://doaj.org/article/7d179fd724474e2abfbaf6999bc15a8c
Publikováno v:
Minerals, Vol 13, Iss 10, p 1346 (2023)
In this study, SDS is used to enhance the sulfuric acid leaching of chalcopyrite in aqueous and isopropanol media. The presence of SDS increased copper extraction into the solution in both solvents. However, it was the “isopropanol–sulfuric acid
Externí odkaz:
https://doaj.org/article/23f31968a88f4d1d9d974cc694771d0a
Publikováno v:
Journal of Materials Research and Technology, Vol 12, Iss , Pp 2011-2025 (2021)
Herein, the room-temperature sulfuric acid leaching of copper smelter slag powder in the presence of potassium dichromate was investigated, resulting in the selective extraction of copper with its separation from zinc and iron. To enhance the extract
Externí odkaz:
https://doaj.org/article/8753a4d21f834e1097c300f709b747d2
Autor:
Olga Kolesnikova, Samal Syrlybekkyzy, Roman Fediuk, Almas Yerzhanov, Rashid Nadirov, Akmaral Utelbayeva, Aktolkyn Agabekova, Marina Latypova, Larissa Chepelyan, Irina Volokitina, Nikolai Ivanovich Vatin, Alexandr Kolesnikov, Mugahed Amran
Publikováno v:
Materials, Vol 15, Iss 19, p 6980 (2022)
During mining, only 4–8% is converted to final products, and the rest is accumulated in landfills. There is a lack of research on the study of various patterns and mechanisms of the formation of cement clinker minerals during the simultaneous disti
Externí odkaz:
https://doaj.org/article/2c7145d4921444b194d0305987e9aca3
Autor:
Rashid Nadirov, Galymzhan Karamyrzayev
Publikováno v:
Minerals, Vol 12, Iss 8, p 1047 (2022)
Copper content in copper smelter slag exceeds that in copper ores, which has attracted increasing interest to recover copper from this by-product of pyrometallurgical copper production. The isopropanol-sulfuric acid-ozone system has been tested under
Externí odkaz:
https://doaj.org/article/fe24ec5a30d24711aa4ebf50a73ae657
Publikováno v:
ChemEngineering, Vol 6, Iss 2, p 30 (2022)
The potential for barium sulphate nanoparticles to be used in a variety of important fields has sparked a lot of attention. Methods for obtaining this material by milling (top-down approach) are not very popular due to the difficulty of controlling t
Externí odkaz:
https://doaj.org/article/8bf559cb12e248f195d616e32845b5bb