Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Svetlana Sineva"'
Publikováno v:
Journal of Materials Research and Technology, Vol 23, Iss , Pp 5280-5300 (2023)
The distributions of zinc and other elements in the Cu–Fe–S–Si–O–(Zn) system among slag, matte and metal phases were determined experimentally at 1200 °C (1473 K). The experimental procedure involved high-temperature equilibration, quenchi
Externí odkaz:
https://doaj.org/article/eeea27163b8f488985d4bf1a1645e706
Publikováno v:
Journal of Sustainable Metallurgy.
The combined effects of Al2O3, CaO and MgO slagging components on phase equilibria and thermodynamics in the basic Cu–Fe–O–S–Si system have been evaluated at 1473 K (1200 ºC) and p(SO2) = 0.25 atm for a range of oxygen partial pressures and
Publikováno v:
Metallurgical and Materials Transactions B. 53:2293-2302
The experimental study of the phase equilibria between calcium ferrite slag, metallic copper, spinel and/or dicalcium ferrite in the Cu2O-FeO x -CaO system has been carried out. Effects of temperature, oxygen partial pressure and Fe/CaO ratio on phas
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 43:989-999
An experimental study has been carried out to determine the compositions of the slag/matte/metal/tridymite phases in equilibrium in the Cu-Fe-O-S-Si system at 1200℃. The measurements covered the full range of matte compositions from copper-free mat
Autor:
Svetlana Sineva, Evgueni Jak, Peter C. Hayes, Taufiq Hidayat, Ata Fallah-Mehrjardi, R. V. Starykh
Publikováno v:
Mineral Processing and Extractive Metallurgy. 131:195-202
Experimental measurements have been undertaken of the gas-matte-spinel and gas-slag-matte-spinel equilibria in the Cu–Fe–O–S–Si system at 1200°C and pSO2 of 0.1 and 0.6 bar. The technique involved ...
Publikováno v:
Metallurgical and Materials Transactions B. 52:2163-2170
A combined experimental and thermodynamic study has been carried out to determine the CaO effect on the equilibria between slag/matte/metal (Fe or Cu)/tridymite phases in the Cu-Fe-O-S-Si-Ca system at 1473 K (1200 °C). The experimental methodology i
Publikováno v:
Journal of Sustainable Metallurgy. 7:569-582
Rising concentrations of impurities are expected at copper fire-refining stage due to lower availability of high-quality copper concentrates and due to increasing recycling of electronics and other secondary materials in primary copper smelting. Extr
Publikováno v:
Journal of Phase Equilibria and Diffusion. 41:859-869
The individual effects of Al2O3, CaO and MgO on gas/slag/matte/spinel equilibria in the Cu-Fe-O-S-Si-(Al, Ca, Mg) system at 1473 K (1200 °C) and p(SO2) = 0.25 atm. have been experimentally measured for a range of oxygen partial pressures and matte c
Autor:
Peter C. Hayes, Maksym Shevchenko, Denis Shishin, Svetlana Sineva, Jiang Chen, Evgueni Jak, Taufiq Hidayat
Publikováno v:
JOM. 72:3401-3409
To address the increasing complexity of feed materials to pyrometallurgical processes, an integrated experimental and thermodynamic modeling research program is in progress to accurately characterize the multi-phase gas-slag-matte-speiss-metal-solids
Autor:
Peter C. Hayes, Svetlana Sineva, Denis Shishin, Taufiq Hidayat, Maksym Shevchenko, Ata Fallah-Mehrjardi, Evgueni Jak
Publikováno v:
Journal of Phase Equilibria and Diffusion. 41:243-256
The effect of temperature, CaO, MgO and Al2O3 on important technological copper smelting parameters, such as the chemically dissolved copper in slag and the composition of the liquid phase in equilibrium with tridymite, are experimentally characteris