CLAYPHOSPHATE MATERIAL Russian patent published in 2009 - IPC C04B28/34 C04B111/20 

FIELD: chemistry.

SUBSTANCE: clayphospate material includes loam, iron-containing waste of metallurgical production with residue on sieve № 008 7-11 wt %, which contains Fe (II) oxide, orthophosphoric acid with density 1.24-1.25 g/cm³, additionally contains shell of chicken eggs with residue on sieve № 008 3-5%, which contains wt %: CaCO₃ - 98.4; MgCO₃ - 0.9; Mg₃(PO₄)₂ - 0.35; Ca₃(PO₄)₂ - 0.35, with following component ratio, wt %: loam - 65-68, said iron-containing waste - 6-8, said shell of chicken eggs - 5-7, orthophosphoric acid with density 1.24-1.25 g/cm³- the remaining part.

EFFECT: reduction of heat conductivity of clayphospate material with preservation of water-resistance.

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