Patent ID: 9133528
Filing Date: 2015-09-15
Classification: C13B

Abstract:
1. A method for purification of raw juice obtained in sugar beet extraction, which comprises: (a) obtaining a raw juice by extraction of sugar beets; (b) a first alkalinization of the raw juice up to a first alkalinity c which is from pH 7 to pH 11 by the addition of sodium hydroxide or soda or both immediately after the extraction (a), and before introduction to a preliming step; (c) heating the alkalized raw juice to the preliming temperature T of 75° C. or lower; and (d) preliming the alkalized raw juice at a preliming temperature T of 75° C. by a second alkalinization to a second alkalinity sufficient for flocculation of nonsugar substances; wherein the second alkalinity has a higher pH than the first.