Zobrazeno 1 - 10
of 53
pro vyhledávání: '"G. R. Belton"'
Autor:
D. Xie, G. R. Belton
Publikováno v:
Metallurgical and Materials Transactions B. 34:225-234
The rates of reduction of ferric iron in Fe2O3-CaO-SiO2-Al2O3 slags containing 3 to 21 wt pct Fe2O3 under impinging argon, CO-CO2, or H2-H2O have been studied at 1370 °C under conditions of enhanced mass transfer in the slag using a rotating alumina
Publikováno v:
Metallurgical and Materials Transactions B. 31:1059-1068
Measurements have been made of the chemical diffusion coefficient of oxygen in liquid iron oxide at temperatures from 1673 to 1888 K and in a calcium ferrite (Fe/Ca = 2.57) at temperatures from 1573 to 1873 K. A gravimetric method was used to measure
Publikováno v:
Metallurgical and Materials Transactions B. 31:1049-1057
The interfacial reaction rate between liquid iron oxide and CO-CO2 was determined using a thermogravimetric technique. The measured rates were controlled by the chemical reactions at the gas-slag interface. The apparent first-order rate constant, for
Autor:
D. Xie, G. R. Belton
Publikováno v:
Metallurgical and Materials Transactions B. 30:465-472
Measurements have been made of the rate of reduction of oxidized iron oxide-containing 41CaO-38SiO2-21Al2O3 (wt pct) slags at 1360 °C by a rotating disc of solid iron. For initial total iron concentrations of between 1.8 and 13.4 wt pct and rotation
Autor:
Yasushi Sasaki, G. R. Belton
Publikováno v:
Metallurgical and Materials Transactions B. 29:829-836
Studies have been made of the steady-stata composition of liquid iron exposed to high flow rates of H2O-CO mixtures at 1550 °C to 1700 °C and CO2-H2 mixtures at 1600 °C. Values of the steady-state activity of oxygen have been established by measur
Autor:
G. R. Belton, Lixiang Yang
Publikováno v:
Metallurgical and Materials Transactions B. 29:837-845
Measurements have been made of the ratio of ferric to ferrous iron in CaO-Al2O3-SiO2 and MgO-CaO-Al2O3-SiO2 slags at oxygen activities ranging from equilibrium with pCO2/pCO≈0.01 to as high as air at temperatures of 1573 to 1773 K. At 1773 K, value
Publikováno v:
Metallurgical and Materials Transactions B. 29:929-932
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences. 356:941-953
Studies have been made by means of a highspeed video technique of the surface of AlSiMn deoxidized liquid steel at about 1600C during local reoxidization by gently inpinging flows of CO2containing ...
Autor:
G. R. Belton, Shouyi Sun
Publikováno v:
Metallurgical and Materials Transactions B. 29:137-145
The 14CO2-CO isotope exchange technique has been used to measure the rates of dissociation of CO2 on liquid iron oxide containing the surface active components P2O5 or Na2O, principally at 1673 K. The apparent first-order rate constant is found to de
Autor:
R. W. Hunt, G. R. Belton
Publikováno v:
Metallurgical Transactions B. 24:241-258
Available information on the magnitudes of interfacial rates and the forms of rate laws is reviewed for several gas-liquid metal reactions of interest to iron and steelmaking. The relevance of some of the findings to present and proposed practical pr