Andafrac

Description: Andalusite/pyrophyllite

Oxide	Analysis	Formula
Na2O	0.40%	0.02
TiO2	0.40%	0.02
Al2O3	32.00%	1.00
SiO2	63.50%	3.37
Fe2O3	0.70%	0.01
LOI	3.00%	n/a
Oxide Weight		309.19
Formula Weight		318.75

Notes

The Andafrac group of mineral products consists of high highly beneficiated Andalusite/Pyrophyllite ores of the best grade available. These products range from coarse grain down to pulverized powders. Volume stability, low hot load deformation and low thermal expansion are characteristic of the high beneficiated ores. The many applications for these products include plastics, castables, kiln car refractories and furnace slag parting compounds.

Three versions are available and they have the same chemistry.
4201 is the coarsest with 53% on 8 mesh.
2001 is dry milled and magnetically separated and is the finest with 4% on 200 mesh. It has a much lower bulk density.
0071 has 65% on 20 mesh.

Related Information

Links

Materials	Andalusite
Materials	Alkatrol
Materials	Pyrotrol
Materials	Pyrofrac
Materials	Pyrophyl
Materials	Seriphyl
Typecodes	Aluminum Silicate Materials not classifiable as commonly known aluminum silicates. For example, kaolin is a common aluminum silicate.
Minerals	Pyrophyllite Pyrophyllite is an aluminum silicate mineral with a similar chemical structure to talc (a magnesium
Minerals	Andalusite A low expansion alumina silicate mineral.

Data

Bulk Density lbs/cu. ft. (Packed)	83-112
Frit Softening Point	31 PCE
Density (Specific Gravity)	2.87
Dry M.O.R. (50% Silica)	789C

By Tony Hansen
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