Patent ID: 7938985

Claim:
An anticaking agent for an iron and steel slag that, when applied to slag, prevents slag consolidation and maintains the industrial usefulness of the slag over time, the anticaking agent comprising (A) at least one member selected from the group consisting of 1-hydroxyethylene-1,1-diphosphonic acid, nitrilotris(methylenephosphonic acid), phosphonobutanetricarboxylic acid and a salt thereof, (B) sodium gluconate, and (C) sorbitol; the anticaking agent having a mixing ratio (A)/(B)/(C) of from 20%≦(A)≦80%/10%≦(B)≦40%/10%≦(C)≦40%, by mass, with the proviso that (A)+(B)+(C)=100%.