Ultrafine nepheline syenite

Details Ultrafine nepheline syenite Ultrafine nepheline syenite

2011-03-29

2011-03-29

Lorengo, Jerry (Department: 1731)

Compositions: ceramic

Ceramic compositions

Clay containing

C501S144000, C241S170000, C241S019000

Reexamination Certificate

active

07915188

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. In practice, the nepheline syenite grain size is less than about 5 microns and the distribution profile of the particulate system is generally 4-5 microns.

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