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Article
The Effect of Reducing and Oxidizing Gases and Molten Slag and Alkalis on the Properties and Resistance of Nitride-Based Refractory Materials
Silicon carbide refractory materials and specimens of silicon nitride and silicon oxynitride are tested under high-temperature attack from reducing (H2 and CO) and oxidizing gases (O2, air) and from molten slag, ...
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Article
Chamotte Refractory Materials with a Compound Nitride-Based Bond
The optimum compositions of oxygen-free mixtures for manufacture of nitride-based refractory bonds are reported. A technology for manufacturing chamotte refractory materials with a compound nitride-based bond ...
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Article
Main factors affecting the thermal stability of aluminosilicate refractories
It is shown that the partial pressure of oxygen and thermocycling in variable gas media are the main factors characterizing the thermal stability of aluminosilicate refractories. The obtained functional depend...
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Article
Clays and kaolins of Ukraine
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Article
Differentiated use of refractories in blast furnace linings
Properties of aluminosilicate, silicon carbide, and carbon refractories and mixtures used for lining blast furnaces and recommended for the future are presented. Recommendations are given for changing the desi...
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Article
Kinetic and temperature dependencies of the variation of polifunctional properties of refractories of the Al2O3—SiO2 system under the effect of gas media, thermocycling, and additives
Alumosilicate refractories in the Al2O3-SiO2 system of kaolin, mullite-silica and mullite-alumina compositions are studied. The kinetic and temperature dependencies of the variation of their properties under the ...
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Article
Scientific-Engineering Conference
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Article
Seventieth anniversary of the Ukrainian Research Institute of Refractories
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Article
Morphological characteristics of mullite: An important factor for evaluating the quality of refractories
The production of mullite from natural aluminosilicate materials and oxides is described. The characteristics of mullite synthesized under different conditions in gas media by sintering and melting are present...
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Article
Theoretical and practical results on the technology and service of refractories
The materials of a scientific and engineering conference conducted on March 26 – 27, 1996, in Kharkov are reviewed. The conference was devoted to the production of new kinds of zirconium, corundum, silicon car...
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Article
Interaction between nickel nitrate and components of mullite-corundum refractories
Results of an investigation of the interaction between mullite-containing refractories and nickel nitrate additives under conditions of oxidizing-reducing gas media at 500–1500°C are presented. Mineral-forming...
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Article
Development of engineering chemistry in Ukraine
On November 1–3, 1995, an international scientific and engineering conference “Development of Engineering Chemistry in Ukraine” took place in Kharkov. The reports of the plenary meeting were devoted to the mai...
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Article
Sintering of aluminosilicate pressings in various gas media
Aluminosilicate pressings in various gas media are investigated. It is shown that the formation of crystalline substances and vitreous phase depends on the gas medium. The importance of investigating the compo...
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Article
Resistance of silicon carbide referactories to the effect of aluminum melt and aluminum chloride vapor
Silicon carbide refractories with binders of silicon nitride and silicon oxynitride are compared with dense aluminum silicate refractories. It is shown that silicon carbide refractories possess high stability ...
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Article
Ultradense articles for the coke and by-product industry
The properties of articles from Nicrolite, i.e., casted stone slag or molten slags of ferrochrome production, are investigated. Nicrolite is used to prepare articles for different parts of installations of the...
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Article
Sources for saving fuel and power resources
Results of examination of the consumption of power resources at several refractory plants are presented. It is shown that the plants have possibilities for saving considerable amounts of fuel, heat, and power....
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Article
Silicon carbide articles for linings of reactors for the production of aluminum chloride
The technological parameters of the production of silicon carbide refractories with a silicon nitride binder are investigated. An experimental industrial batch of refractories has been produced by the Semiluki...
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Article
Interaction of mullite-corundum refractories and alkalies under conditions of variable gas media
Results of investigations of the interaction of mullite-corundum refractories with alkalies in oxidizing and oxidizing-reducing gas media are presented. Alkalies completely destroy mullite at 1580°C, especiall...
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Article
Quality of refractories is the main way to power saving and efficiency
The conference at UkrNIIO held on March 14–15, 1995 under the motto “The quality of refractories is a way to power saving and efficiency” was attended by representatives of the Ukrogneupor Concern, research, d...
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Article
Heat-insulation mixture for linings of tuyere apparatuses of blast furnaces
Technological investigations on the development of heat-insulation mixtures exhibiting high wearability in linings of tuyere apparatuses of blast furnaces are presented. It is shown that with increase in the f...
