Investigation of a sinter process for extraction of Al2O3 from coal wastes

1976 ◽  
Vol 7 (4) ◽  
pp. 716-718 ◽  
Author(s):  
Kenneth P. Goodboy
Keyword(s):  
Sinter Process ◽  
Coal Wastes

Modeling of the Transition Layer in Ceramic Matrix Composites from Coal Wastes and Clay

2020 ◽  
Vol 299 ◽  
pp. 37-42
Author(s):  
O.A. Fomina ◽  
Andrey Yu. Stolboushkin
Keyword(s):  
Transition Layer ◽  
Raw Materials ◽  
Ceramic Matrix Composite ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Coal Waste ◽  
Matrix Composites ◽  
Carbonaceous Particles ◽  
The Core ◽  
Coal Wastes

A model of the transition layer between the shell and the core of a ceramic matrix composite from coal waste and clay has been developed. The chemical, granulometric and mineral compositions of the beneficiation of carbonaceous mudstones and clay were studied. The technological and ceramic properties of raw materials for the samples manufacturing were determined. The method of manufacturing multilayer ceramic samples from coal waste, clay and their mixture is given. The number of transition layers in the contact zone between the clay shell and the core from coal wastes is determined. The deformation and swelling phenomena of model samples from coal wastes, clay, and their mixtures were revealed at the firing temperature of more than 1000 °C. The formation of a reducing ambient in the center of the sample with insufficient air flow is shown. The influence of the carbonaceous particles amount and the ferrous form iron oxide in the coal wastes on the processes of expansion of multilayer samples during firing has been established.

Estimation of burn-through point in the sinter process

2014 ◽  
Author(s):  
Bo-Ram Kim ◽  
Ji Wung Jeong ◽  
Keonho Hwang ◽  
Jongjun Lee ◽  
Jaejun Lee ◽  
...  
Keyword(s):  
Sinter Process ◽  
Burn Through

Effect of the catalyzing combustion of coke breeze on the energy saving in sinter process

2001 ◽  
Vol 8 (4) ◽  
pp. 234-238
Author(s):  
De-qing Zhu ◽  
Guan-zhou Qiu ◽  
Tao Jiang ◽  
Bao-jun Zhu
Keyword(s):  
Energy Saving ◽  
Sinter Process ◽  
Coke Breeze

scholarly journals Stabilization of coal wastes by crystallization

1980 ◽  
Author(s):  
R.J. Lauf ◽  
J.I. Federer ◽  
V.J. Tennery
Keyword(s):  
Coal Wastes

scholarly journals Thermodynamic Analysis of Iron Ore Sintering Process Based on Biomass Carbon

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5988
Author(s):  
Mi Zhou ◽  
Zhenyu Yu ◽  
Panlei Wang ◽  
Huaqing Xie ◽  
Yongcai Wen ◽  
...  
Keyword(s):  
Thermodynamic Analysis ◽  
Iron Ore ◽  
Sinter Process ◽  
Great Influence ◽  
Pollutant Emissions ◽  
Coke Breeze ◽  
Maximum Temperature ◽  
Biomass Carbon ◽  
Metallurgical Properties ◽  
Pollutant Gases

The sinter process of iron ore with biomass carbon instead of coke breeze as fuel was investigated via thermodynamic analysis in this paper through a comparison of sinter composition indexes, metallurgical properties, and pollutant emissions. Straw charcoal was used in this paper, and its replacement does not adversely affect the composition index of iron ore, namely Fe, FeO, basicity, S, nor the metallurgical properties, namely reduction degradation index and reduction index. However, the replacement has a great effect on the emissions of pollutant gases, including SO2, NOx, CO, and CO2. The thermodynamic analysis result shows that emissions of pollutant gases produced in the sinter process significantly decrease by using straw charcoal instead of coke breeze in sinter. The sintering maximum temperature has a great influence on sintering technical indicators. The best sintering maximum temperature is between 1300 and 1400 °C, where sinter ore with high quality can be obtained.

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