Nepheline syenite powder with controlled particle size and novel method of making same

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United States of America Patent

PATENT NO 9034096
APP PUB NO 20090013905A1
SERIAL NO

12215643

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Abstract

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An ultra-fine nepheline syenite powder produced from a pre-processed nepheline syenite powder feedstock. The powder having a “controlled” maximum grain size D95 or D99 of less than about 20 microns and a “controlled” minimum grain size D5 in the range of 2-8 microns with a particle size spread D5-D95 of less than about 12 microns.

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Patent Owner(s)

Patent OwnerAddress
COVIA HOLDINGS CORPORATION3 SUMMIT PARK DRIVE SUITE 700 INDEPENDENCE OH 44131

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anazia, Ibezim Burnsville, US 6 19
Ratcliff, Robert Bakersville, US 6 19
Schlesinger, Louis M Spruce Pine, US 10 42
VanRemortel, Scott Bakersville, US 8 15

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