METHOD OF TREATMENT OF DIFFUSION JUICE Russian patent published in 1999 - IPC

FIELD: sugar industry. SUBSTANCE: invention relates to technology of treatment of diffusion juice by methods of lime-carbonic acid membrane filtration treatment. Method involves the treatment of diffusion juice with milk of lime up to pH 11.2-11.4 followed by brought about pH value of juice to 12.0-12.3 and saturation with carbon dioxide up to pH value 11.2-11.4. Formed precipitate is removed from the juice in the settler and on vacuum-filters. Decantate and filtrate are mixed and fed to the membrane filtration in the closed circulation contour to obtain sucrose-containing filtrate and the concentrate. Obtained filtrate is heated followed by hot defecation and saturation up to pH 9.2-9.5. EFFECT: increased treatment of juice, improved exploitation of membrane filters. 2 tbl, 2 ex