CPC B02C 23/06 (2013.01) [B02C 23/18 (2013.01); C04B 7/52 (2013.01); C04B 7/522 (2013.01); C04B 24/005 (2013.01); C04B 24/02 (2013.01); C04B 24/06 (2013.01); C04B 24/10 (2013.01); C04B 24/121 (2013.01); C04B 24/122 (2013.01); C04B 24/123 (2013.01); C04B 24/16 (2013.01); C04B 24/38 (2013.01); B21B 27/027 (2013.01); C04B 2103/52 (2013.01); C04B 2103/60 (2013.01)] | 35 Claims |
1. A method for grinding a solid in a vertical roller mill (VRM), comprising:
grinding at least one solid in the presence of a grinding stabilizing additive, wherein the grinding stabilizing additive comprises an alkanol amino acid compound or a disodium or dipotassium salt thereof having the structural formula:
wherein:
R1 is (C1-C4)alkyl-OH; and
R2 and R3, each independently, is (C0-C3)alkyl-COOR*, wherein R* is H, Na+, K+, or ½ Ca++, wherein the grinding stabilizing additive is a liquid.
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