Fractionation separation of fatty acids from rapeseed oil

Abstract

3 methods for separation of fatty acids of rapeseed oil are described: (i) fractional distillation of fatty acids or their methyl esters, (ii) centrifugation, (iii) crystallization. Purities of 99.5% can be obtained by (i) under laboratory conditions, 95% under industrial conditions, of <70% by (ii) under industrial conditions and of 99.5% by (iii) after 3 crystallizations.