Systems and method for producing delaminated sedimentary mica

Details Systems and method for producing delaminated sedimentary mica Systems and method for producing delaminated sedimentary mica

1996-06-12

1998-07-07

Husar, John M.

Solid material comminution or disintegration

Processes

Laminated or fibrous mineral material

241 21, 241 2411, 241 4611, 241 76, 241 791, B02C 1912, B02C 2308

Patent

active

057756015

ABSTRACT:
Sedimentary mica flakes are produced having a bulk density of between about five and one-half pounds per cubic feet and eight pounds per cubic feet (5.5-11 lbs/ft.sup.3), a high aspect ratio, and a G.E. brightness between about seventy-five and ninety (75-90). Operations include applying shear forces to delaminate the mica into flakes. Shear forces are applied by rotating a plurality of arcuate blades within a confined chamber containing the mica, such that the mica is forced between an outer portion of each blade and said chamber. The resulting delaminated mica flakes may be dried and classified.

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