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 waste of carbon foam floatation with residue on sieve № 008 3-5%, which contains wt %: C^- - 85.4; F^- - 4.66; Al⁺³ - 2.2; Na⁺ - 2.9; FeO - 0.75; SiO₂ - 0.08, with following component ratio, wt %: loam - 67-70, said iron-containing waste - 6-8, said waste of carbon foam floatation - 3-5, orthophosphoric acid with density 1.24-1.25 g/cm³- the remaining part.

EFFECT: reduction of clay-phosphate material durability with preservation of water-resistance.

1 tbl