IPC classes for russian patent Crude mixture for making construction products. RU patent 2479550. (RU 2479550):
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Crude mixture for making ceramic wall articles / 2515773
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FIELD: chemistry.
SUBSTANCE: invention relates to composition of a crude mixture which can be used to make brick, roofing tiles and slabs. The crude mixture for making construction products contains cast iron filings, refractory clay and sulphite waste liquor, with the following ratio of components, wt %: cast iron filings - 0.5-1.5; refractory clay - 97.0-99.0; sulphite waste liquor - 0.5-1.5.
EFFECT: high strength of products.
1 tbl
The invention relates to the composition of the raw mix, which can be used for the manufacture of bricks, tiles, slabs.
Known raw mix (mixture)which contains the following components, mass%: cast iron scrap 50,5-52,0; clay refractory 4,0-7,0; high-alumina slag 37,0-39,0; solution of sulphite-yeast brew of 5.0-5.5 [1].
The objective of the invention is to increase the durability of products from raw mixture.
Technical result is achieved that in the raw mix for manufacture of building products, including chips, cast iron, refractory clay, sulphite-yeast , the components are located in the following ratio, mass%: cast iron scrap 0,5-1,5; clay refractory 97,0-99,0; sulphite-yeast mash 0,5-1,5.
The table shows the composition of the proposed raw mix.
Component
Composition,% Mas.:. 1 2
Cast iron scrap 0,5 1,5
Refractory clay 99,0 97,0
Sulphite-yeast mash 0,5 1,5
Compressive strength, MPa
not less than 10
not less than 10
Components are measured in the required amount. Cast iron shavings are crushed, mixed with clay refractory and sulphite-yeast mash. The mix is humidified with up 18-26% and molded plastic way of products, which are dried up to a humidity not more than 6 % and then fired at a temperature of 1200-1260°N
Source of information
1. Author's certificate of the USSR №626082, 1978.
Raw mix for manufacturing of building products, including chips, cast iron, refractory clay, sulphite-yeast , wherein the components in the following ratio, mass%: cast iron scrap 0,5-1,5; clay refractory 97,0-99,0; sulphite-yeast mash of 0.5-1.5.
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