Method of producing metakaolin

Details Method of producing metakaolin Method of producing metakaolin

2006-10-25

2009-12-08

Marcantoni, Paul (Department: 1793)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S416000, C106S718000, C501S141000, C501S145000, C241S024230

Reexamination Certificate

active

07628850

ABSTRACT:
A process for producing high grade metakaolin directly from kaolinzed sands ore body. In one embodiment, a source of kaolin ore is reduced in the size to a size distribution of between −2 inches and 10 mesh. The ore is then dried in a dryer at a temperature of not greater than 180° C. to a moisture content of not greater than 0.5% by weight to liberate kaolin and calcined at a temperature of not greater than 875° C. to produce metakaolin.

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