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Pyrofrac

Pyrophyllite/Andalusite

OxideAnalysisFormula
K2O0.20%0.013
Na2O0.20%0.020
TiO20.40%0.031
Al2O316.50%1.000
SiO276.90%7.910
Fe2O31.00%0.039
LOI4.80
Oxide Weight588.51
Formula Weight618.18
If this formula is not unified correctly please contact us.
DENS - Density (Specific Gravity) 2.6-2.7
PCE - Pyrometric Cone Equivalent 23-29

The Pyrofrac group of mineral products is composed of co-products from the Andafrac series. These are smaller grain derivatives of coarser beneficiated Andalusite/Pyrophyllite ores. The broad range of alumina contents in this series enables tuning to a specific application. Some of these products have proven effective as components in refractory mixes, industrial ceramic products, coatings for the structural clay industry.

This analysis is for the 0204 grade which is representative of the many grades available.
The various grades differ in particle size from a coarse grog to fine powder. Alumina content varies from 13.5 to 21.0, alkalies from 0.4 to 0.9, LOI from 3.0 to 5.7.


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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Pyrofrac" descrip="Pyrophyllite/Andalusite" searchkey="" loi="0.00" casnumber="12269-78-2"> <oxides> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.200" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.200" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.400" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="U" percent="16.500" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="76.900" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.000" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="4.800" tolerance=""/> </volatiles> </material>


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