SU1512961A1 - Engobe - Google Patents

Abstract

The invention relates to the production of wall ceramics, in particular to coating compositions for facial ceramics products. The aim of the invention is to reduce the burning temperature. For this, the engobe contains, wt%: kaolinite shales 15-30, spent catalyst for ammonia production GIAP 10-2A 40-50, cullet 5-10, nepheline-syenite 20-30. The burning temperature of the engobe is 900-920 ° C. 3 tab.

Description

one

(21) 42735ЛЗ / 23-33

(22) 07/01/87

(46) 10/07/89. Bksh. N 37

(71) Kyzitsky branch of the Krasnoyarsk Polytechnic Institute

(72) B.K.Kara-sal, D.A.Romanyuk and S.S.Sumanchik

(53) 666.297 (088.8)

I (56) USSR author's certificate

№ 1145010, cl. From 04 To 41/86, 1983.

USSR author's certificate N 1150244, cl. From 04 To 41/86, 1983.

(54) ANGOB

(57) The invention relates to the production of wall ceramics, namely, coating compositions for facial ceramics products. The aim of the invention is to reduce the burning temperature. For this, the engobe contains, wt%: kaolinite shales 15-30, spent catalyst for ammonia production GIAP 10-2A 40-50, cullet 5-10, nepheline-syenite 20-30. The burning temperature of engobe soy / avl is 900-920 C. 3 table.

The invention relates to the production of wall ceramics, in particular to coating compositions for facial ceramics products.

The aim of the invention is to reduce the burning temperature.

The compositions of the engobes are presented in table 1.

As the clay component, kaolinite schists of the Saryg-Khainsky deposit (Tuvinsk ASSR) are used. Waste from ammonia production (spent catalyst, GIAP 10-2A) is disposed of in landfill.

The chemical composition of raw materials is given in table 2.

Raw materials are ground by a joint wet grinding in a ball mill until the residue on the 0063 sieve is not more than 1.5%. Pigment dyes using colored engobe are injected into a ball mill 2 hours before the end of grinding.

Samples of standard size tiles are made of the mass of the following composition, wt.%: Ongar-Hovunska clay (Tuvinsk ASSR) 88.0; dehydrated clay 12%. Ongar-Khovunska clay has the following chemical composition, wt.%: SiOi 55.15; 16.48; , 89; 5.01; CaO 5.54; MgO 2.90; 2.18; Na, 0 1.24; SOj 0.64; ppt 9.62. Temperature of refractoriness is 1195 ° С.

The suspension of engobe has a density of 1.62 - 1.64 g / cm, a humidity of 40-41%. An engobe suspension by spraying or dipping is applied to the dried tile specimens with a thickness of 0.30. 0.35 mm, dried and calcined at 900-920 ° C. If necessary, staining of engobe in various colors add the appropriate pigments in the amount of 5-8% due to a decrease in the composition of nepheline syenite.

Table 3 gives the properties of an engobe.

cl

to

with

(Y

Formula 3

1512961 shadows

Engobe) includes a clay component, spent catalyst and broken glass, characterized in that, in order to reduce the firing temperature, it contains kaolinite schists as a clay component, and as a spent catalyst - catalyst

0

ammonia GIAP 10-2A and additionally nepheline-syenite with.the following ratio of components, wt.%:

Kaolinite shales15-30 Ammonia production catalyst

GIAP 10-2A40-50

Cullet.5-10

Nepheline-syenite20-30

Table 1

) H

T a b X X a

Table3

Claims (1)

An engobe comprising a clay component, a spent catalyst and a cullet, characterized in that, in order to reduce the firing temperature, it contains kaolinite shales as a clay component, a spent catalyst as a catalyst component of ammonia production GIAP 10-2A and additionally nepheline-syenite at The following ratio of components, May 2: 5 Kaolinite schists 15-30 of ammonia GIAP 10-2A 40-50 10 Cullet, 5-10 N efelin-sie nit 20-30 Table 1 Content Components, May. 2 Cullet 5 10 8 Kaolinite schists fifteen thirty 23 Nepheline syenite thirty twenty 27 Waste production ammonia GIAP 10-2A fifty 40 42 in l w and in 2