SU753823A1 - Raw mixture for producing light construction articles - Google Patents

Description

(54) RAW MATERIALS FOR EXERCISING LIGHT-ESSENTIAL PRODUCTS

The invention relates to the field of building materials, namely, to raw materials for the manufacture of lightweight building materials in the form of blocks, bricks, slabs, porous aggregates for concrete, as well as for heat-resistant (up to 12OO ° C) building products. A known mass for the manufacture of a light refractory aggregate, including corundum and an aluminum-chromium-containing bond 13. The disadvantage of it is low porosity. Of the raw material mixtures described in the literature, the composition of the components is the closest, the raw mixture containing, in wt.%: Dispersed filler 30-7 5 Phosphate binder .7-28 Krekshezemist additive 2-30 L The disadvantages of this mixture are the low strength of the resulting products, using expensive materials. The purpose of the present invention is to improve the strength of the products, the cost of production and the disposal of production wastes. This is achieved by the fact that the raw mix for the manufacture of lightweight construction products, including a phosphate bond, a dispersed filler and a silica additive, contains an aluminum-containing waste of the catalytic complex as a phosphate bond, as a dispersed filler, an aluminum-containing waste of the catalytic complex, and a silica-containing layer, and a silica material, , tripoli in the following ratio KOMnoHeiiTOB wt.%: Alumophosphate bond 12-24 Aluminum-containing waste of the catalytic complex 24-36 Tripoli - Remaining. Aluminum-containing catalytic cockx complex waste is a chemical production waste. They contain in their composition,%: S t O d - silica

- 7.91; chromium oxide - 15.7; ABgO-j - alumina - 69; KYO, gas-acidic - 4.98; Peg iron oxide - 2.25 (Nizhnekamsk Chemical Plant). Orthophosphoric acid - extraction.

Acid aluminophosphate binder forms with aluminum-containing waste Al and aluminum-containing Aluminophosphate waste of the catalytic complex

Aluminum (| xx; fatt bond was prepared as follows: 85 grams of orthophosphoric acid 85% heated to 9O-10Cp, was added with continuous stirring 7 grams AESON) - Then the resulting aluminophosphate bond was added to the mixture of tripoli with aluminum-containing wastes catalytic complex. The composition is compulsory. mixed in a laboratory blender and samples of 5x5x5 cm were made from the obtained raw mass.

The optimum alumophosphate content of the binder is in the range from 12 to 24 wt.%. Increasing or decreasing the content of the aluminophosphate binder in the fiend c (Cccc leads to deterioration of the physicomechanical properties of the products.

The resulting syfie mass can be used for the manufacture of lightweight with tripoli, resistant aluminum-chromophosphate and silicate-phosphate cements, which are reinforced with a flexible section.

To obtain the specified composition of the raw mix, mixtures of components (wt.%) Were prepared: see tab. 1. link

semi-dry pressing in a laboratory process at a pressure of 18O -: - 20O kg / cm

2J The obtained samples were dried at 80 ° C in a drying room for 2 hours, and then half of them were thermally treated at AIRC, and the second half at 70 ° C. The obtained samples were subjected to compression, water absorption, and frost resistance, and the porosity and bulk were calculated. The test results are listed in the table. 2

Table 2

heat-resistant building products that work in -fc to 12OO ° C, as well as for the manufacture of lightweight aggregates for concrete and, in addition, slabs, blocks, bricks.

Technical and economic efficiency is shown in Table 3. The table of Tripoli

Claims (2)

Expense items Raw materials: dispersed filler (chamotte, corundum, refractory clay) Phosphate binder (aluminum chromophosphate orthophosphoric acid) silica additive (sand; an integral part of the zone) trippel manufacturing lightweight construction products, including a phosphate bond, a dispersed filler, and a silica additive, characterized in that, in order to improve strength, e cost, and waste disposal, it contains as the phosphate binding zki- aluminophosphate ligament as particulate fillers "bodies waste aluminum-catalyst complex, and as kremneTablitsaZ Cost in rubles per ton of weight prototype according to the present invention, 3, O-8O, 0 25, O-8O, 0 0.3 - 0.5 Total 28; 3-16 se with p no. K9 S, 9 1.1 4-6, 7-1.0 03-0.05 5.63-8.1 mytopic tripoli supplement with the next component ratio, wt% Aluminophosphate bond 12-24 Aluminum-containing waste of the catalytic complex 24-36 Thrill Else. Sources of information that are considered in attention. During examination 1, USSR Copyright Certificate 465390, cl. C O4 B 29 / O2, 1973. 2. Authors certificate of the USSR 472917, cl. C O4 B 31 / OO, 04 B 29/02, 1973.