RU2360885C1 - Clayphosphate material - Google Patents

Abstract

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.

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Description

The invention relates to the field of building materials and can be used in the manufacture of building blocks.

Known materials based on clay, loam, phosphoric acid and additives - d-metal oxides (Latutova MN, Svatovskaya LB, Chibisov NP and others. Physico-chemical characteristics of hardening of GLINFs and ALUMPHs. - L. , Stroyizdat, "Cement" No. 10, 1990, pp. 11-12). These known aluminophosphate materials harden in air and are water resistant.

The closest in technical essence to the claimed technical solution is selected for the prototype aluminophosphate material of the following composition (wt.%):

loam 71-74 iron waste metallurgical production with residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.% 5-7 orthophosphoric acid density 1.24-1.25 g / cm ³ rest

(Patent RU No. 2148563, С04В 28/34, 05/10/2000).

The disadvantage of this aluminophosphate material is its low strength.

The objective of the invention is the creation of a new clay phosphate material with high strength while maintaining water resistance. The solution to this problem is achieved by the fact that the clay-phosphate material containing loam, iron-containing metallurgical waste with a residue on sieve No. 008, containing Fe (II) oxide 7-11 wt.%, Phosphoric acid with a density of 1.24-1.25 g / cm ³ , additionally contains coal foam flotation waste with a sieve residue No. 008 3-5%, containing, wt.%: C ^- - 85.4; F ^- - 4.66; Al ⁺³ - 2.2; Na ⁺ - 2.9; FeO - 0.75; SiO ₂ - 0.08, in the following ratio of components, wt.%:

loam 67-70 iron waste metallurgical production with a sieve residue No. 008 of 7-11 wt.% containing Fe (II) oxide, 6-8 specified coal foam flotation waste 3-5 phosphoric acid density 1.24-1.25 g / cm ³ rest

New in comparison with the prototype to increase the strength of the material is the use of coal flotation waste foam.

Material production

A mixture consisting of loam, iron-containing waste of metallurgical production with a residue on sieve No. 008 containing Fe (II) oxide of 7-11 wt.%, And the waste of flotation of coal foam from the Korshunov mining and processing complex of the Irkutsk region are mixed and mixed with phosphoric acid with a density of 1, 24-1.25 g / cm ³ . The following materials are used: iron-containing waste of the following basic composition, wt.%: FeO - 96; CuO - 0.1; Al ₂ O ₃ - 0.4; Mo ₃ O ₄ - 0.1; NiO - 0.2; SiOl - 2.0; Cr ₂ O _3-0 - 3; C - 0.3; loam; phosphoric acid with a density of 1.24-1.25 g / cm ³ (GOST 65-52-80), flotation waste of coal foam of the Korshunov mining and processing complex of the Irkutsk region with a sieve residue No. 008 3-5%, containing, wt.% : C ^- - 85.4; F ^- - 4.66; Al ⁺³ - 2.2; Na ⁺ - 2.9; FeO - 0.75; SiO ₂ - 0.08.

After hardening in air, a water-resistant clay phosphate material with increased strength is obtained, which can be used in construction.

To determine the particle size modulus, small fractions of iron-containing waste from metallurgical production and coal foam flotation waste with a particle size of less than 5 mm were screened on a standard set of sieves according to GOST 8735-88.

Strength of materials is determined in accordance with GOST 10180.

Examples of compositions and test results are presented in the table.

An analysis of the results of the table shows that the additional use of coal foam flotation waste with a sieve residue No. 008 of 3-5%, containing, wt.%: C ^- - 85.4; F ^- - 4.66; Al ⁺ - 2.2; Na ⁺ - 2.9; FeO - 0.75; SiO ₂ - 0.08, makes it possible to increase the strength of the phosphate material in comparison with the prototype.

Claims (1)

Clay-phosphate material containing loam, iron-containing metallurgical waste with a sieve residue No. 008 of 7-11 wt.%, Containing Fe (II) oxide, phosphoric acid with a density of 1.24-1.25 g / cm ³ , characterized in that it additionally contains coal foam flotation waste with a sieve residue No. 008 3-5%, containing, wt.%: C 85.4; F 4.66; Al ⁺³ 2.2; Na ⁺ 2.9; FeO 0.75; SiO ₂ 0.08, in the following ratio of components, wt.%:
Loam 67-70 Iron-containing metallurgical waste screen residue production No. 008 7-11 wt.%, Containing oxide of Fe (II) 6-8 Specified coal foam flotation waste 3-5 Phosphoric acid with a density of 1.24-1.25 g / cm ³ Rest