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Hits: 36859
Compositions of glasses have been developed, which make it possible to obtain slag-silicates based on ash-and-slag waste from thermal power plants. The crystallization ability has been studied for the most optimal compositions. The temperature regime for melting these glasses was determined, which is 40 minutes at a maximum temperature of 1500 ° C. The obtained compositions of glasses can be used in the synthesis of slag glass-ceramic. Tab. 2, bibliography: 2 titles.
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Hits: 38165
The possibility of using spent vanadium catalysts to obtain fritted colored glazes has been established. The technological parameters of the synthesis of glazed glasses in a borosilicate system using spent vanadium catalysts have been investigated, and their physicochemical properties have been determined. Decorative glaze coatings in fawn, brown and gray tones with a shiny, matte and semi-matte texture were obtained. Tab. 1, bibliography: 4 titles.
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Hits: 38541
Investigated apodunite serpentinite by-products. It is shown that under the conditions of low-temperature firing, it is possible to obtain decorative and finishing products based on magnesium-containing man-made raw materials with satisfactory physical and mechanical properties - tiles for internal facing of walls and facades, tiles, ceramic bricks, and shingles. Tab. 2, ill. 3, bibliography: 1 title.
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Hits: 38593
The results of synthesis and physicochemical studies of heat-resistant glass-crystalline coatings using high-alumina waste from the metallurgical industry, intended to protect nichrome alloys from high-temperature corrosion, are presented. The mechanism of sitallization of the glass matrix of the coating is revealed, the phase composition of both heat-resistant coatings and contact layers of nichrome-coating is established depending on the ratio of adhesion activators - NiO and CoO. Tab. 1, ill. 3, bibliography: 2 titles.
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Hits: 38460
The results of using flotation waste of tungsten-molybdenum ores of the Kaitash mine as a fluxing component of ceramic masses are presented. The use of flotation waste in masses for ceramic tiles will make it possible to reduce the cost of finished products, reduce the firing temperature, dispose of waste and obtain products with the required technical properties. Tab. 2, ill. 1, bibliography: 1 titles.
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Hits: 39362
The use of man-made waste, primarily from the mining and processing industry, and sludge from biological wastewater treatment of aeration plants of cities and enterprises in the production of large-tonnage building materials, such as ceramic bricks and cement, can be considered as a solution to acute environmental and technical problems in the country's building materials industry.
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Hits: 39921
A fundamentally new installation for producing mineral fibers from refractory silicate materials using highly concentrated heat fluxes is considered. The operating modes and thermophysical parameters of the plasma-chemical reactor have been determined. A comparison is made of the performance characteristics of the fiber obtained at the facility and by the traditional technology. Tab. 3, ill. 2, bibliography: 2 titles.
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Hits: 39898
The results of the synthesis of low-melting muffled glazes for household ceramics based on the R
2 O - RO - B
2 O
3 - Al
2 O 3 - Fe 2 O 3 - ZnO - SiO 2 firmness. The interrelation of physical and chemical properties with the phase composition and structure of the coatings is investigated at different contents of the introduced flotation waste. Tab. 1, ill. 2, bibliography: 3 titles.
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Hits: 39856
Considered are the issues of using leucoxene concentrate - waste of the Yarega petrochemical field - as a carbide-forming additive in the production of ceramic foam materials. Comparative physical-mechanical, thermophysical and electrical characteristics of the obtained ceramic foam materials are presented and new carbide-forming formulations are proposed. Tab. 2.
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Hits: 43679
Ceramic pigments with wollastonite and diopside structures were obtained using nepheline sludge with magnesium and silicon oxides. Pigments are resistant to high temperatures, the action of melted fluxes and glazes. They can be recommended in addition to spectral color pigments, as well as for volumetric coloring of ceramics and glazes. In addition to reducing the cost of pigments, the tasks of using waste production waste are being solved, as well as expanding the raw material base for the synthesis of ceramic pigments. Tab. 3, ill. 1, bibliography: 4 titles.
