CPC B02C 15/007 (2013.01) [B02C 23/30 (2013.01); B02C 23/32 (2013.01); C04B 33/04 (2013.01); C04B 35/6261 (2013.01); B02C 2015/002 (2013.01)] | 13 Claims |
1. A method for preparation of raw kaolin (R), comprising:
providing a roller milling and separating device (1) which has a milling section (13) and a first separating section (16);
providing the raw kaolin (R) as a material mixture comprising a first fraction (F1) including kaolin and a second fraction (F2) including quartz;
feeding the raw kaolin (R) to the milling section (13);
pulverizing the raw kaolin (R) in the milling section (13) and thereby extracting the first fraction (F1) at least in part from the raw kaolin (R); and
subsequently separating the first fraction (F1) from the second fraction (F2) in the first separating section (16),
wherein the preparation is carried out without production of a suspension of the raw kaolin (R).
|