IPC classes for russian patent Crude mixture for making expanded clay. RU patent 2513806. (RU 2513806):
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FIELD: chemistry.
SUBSTANCE: crude mixture for making expanded clay contains, wt %: montmorillonite clay 72.5-93.5, spent grains from wine and cognac production 1.5-2.5, kyanite 5.0-25.0.
EFFECT: high strength of expanded clay made from the crude mixture.
1 tbl
The invention relates to compositions of raw mixes for production of expanded clay, which can be used in industry of building materials.
Known raw material mixture for the production of expanded clay contains, mass%: clay raw materials 97,5-98,5; Barda wine-cognac production of 1.5-2.5 [1].
The objective of the invention is increasing the strength of expanded clay obtained from the raw mix.
The technical result is achieved by the fact that raw mix for the manufacture of expanded clay, clay-containing raw materials and Barda wine-cognac production, as the clay raw materials contains clay of montmorillonite and advanced - kyanite in the following ratio of components, mass%: clay of montmorillonite 72,5-93,5; Barda wine-cognac production 1,5-2,5; kyanite 5,0-25,0.
The table shows the composition of the raw mix for the manufacture of expanded clay. Table
Components
Composition,% Mas.: 1 2 3
Clay of montmorillonite 93,5 83,0 72,5
Barda wine-cognac production 1,5 2,0 2,5 Kyanite 5,0 15,0 25,0
Strength at compression, MPa 3-4 2-3 2-3
In the composition of the raw mix used clay of montmorillonite, including Al-montmorillonite and Fe-montmorillonite (nontronite); Barda wine-cognac production in the form of sludge generated in the result of the filtering off the drinks, after fermentation; kyanite - mineral from class silicates (Ai 2 ·SiO 3 ).
Kyanite and clay grind to powder. Components are batched in the required amount and smeshivat mixture (humidity 19-25%) is formed into pellets the size of 20-40 mm, which are dried and fired at a temperature of 1000-1100 C.
Sources of information
1. SU 116492, C04B 14/10,1985.
Raw mix for the manufacture of expanded clay, clay-containing raw materials and Barda wine-cognac production, wherein the quality of the clay raw materials contains clay of montmorillonite and advanced - kyanite in the following ratio , wt.%:
clay of montmorillonite
72,5-93,5
Barda wine-cognac production 1,5-2,5 kyanite
5,0-25,0
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