RU2394789C1 - Ceramic mixture for making ceramic bricks - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of ceramic materials, mainly to compositions of mixtures for making bricks. The ceramic mixture for making ceramic bricks includes a clay portion of tailings from gravitation of zircon-ilmenite ore and a product from combustion of porphyrite-basalt mixtures for making mineral wool containing the following in wt %: SiO₂ - 52.1; Al₂O₃ - 19.3; Fe₂O₃ - 9.5; CaO - 7.3; MgO - 2.4; R₂O - 4.3, with the following ratio of components in wt %: clay portion of tailings from gravitation of zircon-ilmenite ore 70-90; product from combustion of porphyrite-basalt mixtures for making mineral wool 10-30.

EFFECT: increased frost resistance and heat resistance of the articles.

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Description

The invention relates to the industry of ceramic materials, mainly to compositions of the masses for ceramic bricks.

The ceramic mass for producing bricks of the following composition is known, wt.%: Clay part of the “tails” of gravity of zircon-ilmenite ores - 20-70, ash TPP - 30-80 / Abdrakhimov DV Ceramic brick from industrial waste. / D.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov. // Construction Materials. - 1999. - No. 9. - S. 34-35 / [1].

The disadvantage of this composition is the relatively low frost resistance (14-30 cycles).

Closest to the invention is a ceramic mass for the manufacture of bricks, comprising the following components, wt.%: The clay part of the "tails" of gravity of zircon-ilmenite ores - 50; product from the combustion of basalt mixture - 50 / Vdovina E.V. Obtaining ceramic material from production waste without the use of traditional natural raw materials. / E.V. Vdovina, A.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov. // Ecology and industry of Russia, September 2007. S.23-25 / [2]. Adopted for the prototype.

The disadvantage of this composition of the ceramic mass is the relatively low frost and heat resistance of the brick.

The essence of the invention is improving the quality of ceramic bricks.

The technical result of the invention is to increase the frost and heat resistance of the brick.

The specified technical result is achieved by the fact that in the well-known ceramic mass, including the clay part of the “tails” of gravity of zircon-ilmenite ores, the product from the combustion of porphyrite-basaltic mixture of production of mineral wool is additionally introduced in the following ratio of components, wt.%:

clay part of the “tails” gravity zircon-ilmenite ore 70-90 porphyrite-basalt combustion product charge production mineral wool with a content, wt.%: SiO ₂ -52, l; Al ₂ O ₃ -19.3; Fe ₂ O ₃ -9.5; CaO-7.3; MgO-2.4; R ₂ O-4.3 10-30

The product from the combustion of porphyrite-basaltic mixture is formed during the production of mineral wool and is used in the composition of ceramic mass for the production of bricks as a cleaner and sintering intensifier. Having a high content of iron oxides (Fe ₂ O ₃ -9.5%) and alkalis (R ₂ O-4.3%), the product from the combustion of porphyrite-basaltic mixture intensifies the firing processes, and a high content of aluminum oxide in it (Al ₂ O ₃ -19.3%) will increase the heat resistance of the brick. The chemical composition of the product from the combustion of porphyrite-basaltic mixture is presented in table 1.

Table 1 Chemical compositions of components Components The content of oxides, wt.% SiO ₂ Al ₂ O ₃ CaO MgO Fe ₂ O ₃ R ₂ O SO ₃ P.p.p. The clay part of the “tails” of gravity of zircon-ilmenite ores 58.70 23.39 1.80 1.22 5.55 1,62 0.11 7.1 Product from the combustion of porphyrite-basalt mixture of mineral wool production 52.1 19.3 7.3 2,4 9.5 4.3 0.2 -

The clay part of the “tails” of gravity of zircon-ilmenite ores, the chemical composition of which is shown in Table 1, was used as the main clay raw material for the production of ceramic bricks.

Information confirming the possibility of carrying out the invention. The ceramic mass was prepared in a plastic way at a moisture content of 20-24%, from which the brick was molded, raw brick was dried to a moisture content of not more than 8% and then fired at a temperature of 1050 ° C. Table 2 shows the composition of ceramic masses, and in table 3 - physical and mechanical properties of bricks.

table 2 The compositions of ceramic masses Components The content of components, wt.% one 2 3 The clay part of the “tails” of gravity of zircon-ilmenite ores 90 80 70 Product from the combustion of porphyrite-basalt mixture of mineral wool production 10 twenty thirty

Table 3 Physico-mechanical properties of bricks Indicators Compositions Prototype one 2 3 Frost resistance cycles 55 59 65 thirty Heat resistance cycles four 5 5 2-3

As can be seen from table 3, the bricks from the proposed compositions have higher frost resistance and heat resistance than the prototype.

The resulting technical solution when using the product from the combustion of porphyrite-basaltic mixture of mineral wool production can significantly increase the frost and heat resistance of the brick.

The use of technogenic raw materials in the production of bricks contributes to the utilization of industrial waste, environmental protection, and the expansion of the raw material base for ceramic materials.

Information sources

1. Abdrakhimov D.V. Ceramic brick from industrial waste. / D.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov. // Construction Materials. - 1999. - No. 9. - S. 34-35.

2. Vdovina E.V. Obtaining ceramic material from production waste without the use of traditional natural raw materials. / E.V. Vdovina, A.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov. // Ecology and industry of Russia, September 2007. S.23-25.

Claims (1)

Ceramic mass for the manufacture of ceramic bricks, including the clay part of the “tails” of gravity of zircon-ilmenite ores, characterized in that it further comprises a product from the combustion of porphyrite-basalt mixture of the production of mineral wool with a content, wt.%: SiO ₂ 52.1; Al ₂ O ₃ 19.3; Fe ₂ O ₃ 9.5; CaO 7.3; MgO 2.4; R ₂ O 4,3 in the following ratio of components, wt.%: Clay part of the “tails” of gravity of zircon-ilmenite ores 70-90; product from the combustion of porphyrite-basalt mixture of mineral wool production 10-30.