Patent ID: 9512316
Filing Date: 2016-12-06
CPC Classification: B02C,B03B,C01F,C01P,C09C

Claim Text:
1. A method of sizing of mineral matter comprising the following steps: a) supplying at least one mineral matter comprising dolomite, or talc, or titanium dioxide, or alumina, or kaolin, or calcium carbonate, or any blend thereof; b) supplying at least one sizing aid additive: c) bringing into contact, once or several times, the mineral matter from step a) with the sizing aid additive of step b) in one or more dry grinding and/or dry blending steps; d) undertaking at least one sizing step of the mineral matter obtained in step c) in a gaseous environment, in order to obtain at least two fractions of particles of different average particle sizes; and e) optionally repeating steps c) and/or d) on all or part of the sized mineral matter resulting from step d).