FIELD: chemistry.
SUBSTANCE: claimed group of inventions relates to enrichment technologies. In particular, claimed invention relates to compositions for enrichment and methods of their application. Method of separating first material from second material includes mixing first material with second material in suspension with composition for enrichment, where composition for enrichment includes, at least, one fatty acid byproduct of the process of Diesel biofuel production or re-etherification reactions, and fatty acid byproduct includes monoglycerides or diglycerides, from more than 55 wt % to approximately 60 wt % of methyl esters of fatty acids, from approximately 0.01 wt % to approximately 1 wt % of methanol and from approximately 0.01 wt % to approximately 1 wt % of glycerol, providing air bubbles in suspension to form aggregates of bubbles with particles of first material and ensuring separation of aggregates of bubbles with particles from second material.
EFFECT: increased efficiency of separating one material from the other.
19 cl, 3 tbl, 2 ex
