Ultrafine nepheline syenite
AssigneeCovia Holdings Corporation
InventorsJerry William Janik, Scott Van Remortel
Life of this patent
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Abstract
A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite particles have a size less than 10 microns.
Claims5
An ultra-fine nepheline syenite powder, said powder having a controlled D99 particle size with a value in the range of from about 5 microns to less than 10 microns, where said ultra-fine powder has an uncontrolled mean particle size D50 of less than about 2.0 microns, said powder being essentially free of added moisture.
An ultra-fine powder formed a silica deficient igneous rock, said ultra-fine powder being moisture free and having a controlled maximum particle size D99 with a value of less than 10 microns and a mean particle size D50 of less than about 2.0 microns.
Dependencies are inferred from the claim text.