Calcined Kaolin clay

1.reasonable price ;2.good whiteness 3.wide specification ;4.personalized service 5.convenient transportation

Also called Calcined Kaolin and Flint clay

It is made from alumina oxide powder and high-grade kaolin.

1) High refractoriness.

2) Aluminum content high, the iron content low.

3) High volume density.

4) Thermal expansion coefficients of small.

5) Physicochemical stability.

6) Fully calcined.

7) Dust content low.

Calcined flint clay has been processed through a series of procedures, such as remove impurities, magnetic-selected to move iron and spraying drying etc. Water-washed kaolin has been used very effectively as functional filler in ceramic and so on.

Calcined flint clay is mainly used for manufacturing high-quality refractory products, refractory castable, sagger, kiln furniture, crucibles, ceramic fiber, precision casting sand, ceramics products, etc.

Size:

Size of  calcined flint clay sand: 18-30mesh,30-60mesh,60-80mesh.Size of  calcined flint clay flour: 200mesh,270mesh,325mesh

Technical Specification

Item number	YNS45	YNS45	YNS44	YNS44	YNS43	YNS42	YNS40	YNS36
	A	B	A	B
AL2O3 %	45-48	45-47	44-47	44-46	43-45	42-45	40-44	36-42
SiO2 %	49-52	50-52	50-53	50-53	50-54	50-54	52-55	52-55
Fe2O3 %   (max)	1.0	1.15	1.3	1.5	2.0	2.5	3.0	3.5
Ti02 %   (max)	0.8	0.8	0.9	0.9	1.0	1.1	1.2	1.3
K2O+Na2O %   (max)	0.3	0.3	0.4	0.4	0.4	0.5	0.5	0.6
Ca0+Mg0 %   (max)	0.5	0.5	0.5	0.5	0.5	0.6	0.7	0.8
Bulk density g/cm³(min)	2.58	2.55	2.52	2.50	2.45	2.40	2.37	2.30
Refractoriness °C(min)	1780	1770	1760	1750	1740	1720	1710	1700
Impurities %  (max)	0.5	1.5	2.0	2.5	3.0	3.5	4.0	4.5