Non-Caking Mine Rock Dust

Abstract

A composition for use as rock dust is disclosed. The composition may include a ground inorganic particulate material treated with at least one fatty acid, a salt thereof, or an ester thereof. Also disclosed is a composition including coal dust and mine rock dust, which may include a ground inorganic particulate material treated with at least one fatty acid, a salt thereof, or an ester thereof. The amount of mine rock dust may be sufficient to render the coal dust explosively inert. The composition may also include an untreated inorganic particulate material. The treated inorganic particulate material may be calcium carbonate. The untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.

Dependencies are inferred from the claim text.