PROCESS FOR PREPARING HIGH PURITY LACTOSE

摘要

PROCESS FOR PREPARING HIGH PURITY LACTOSE Lactose crystals of improved purity and reduced color are obtained by washing the lactose crystals in an alkaline wash-bath having a pH within the range of from about 8.5 to about 12.5. The isolated washed crystals exhibit improved purity particularly in the reduction of nitrogen-containing impurities as evidenced by a reduced total Kjeldahl nitrogen content and a substantially white color.