Sugar – starch – and carbohydrates – Processes – Carbohydrate manufacture and refining
Patent
1979-05-07
1980-11-18
Marantz, Sidney
Sugar, starch, and carbohydrates
Processes
Carbohydrate manufacture and refining
127 9, 127 12, 127 55, 127 57, 210151, 210703, B01D 2100, C13D 316, C13D 300
Patent
active
042343500
ABSTRACT:
A process for the purification of evaporated sugar solutions prior to cryllization, utilizing the discovery that most of the suspended non-sugar particles within the evaporated sugar solution are hydrophobic in nature and thus thrown out of solution during the loss of water during the evaporation process, by thoroughly mixing air in large quantities with the evaporated sugar solution containing such particles and repeatedly subjecting the mixture of air, sugar solution and non-sugar particles to high shear forces by a surging flow with flow reversals through an aerator so as to produce a uniform creamy mixture of micron size bubbles to which the non-sugar particles are intimately and mechanically attached, having moved out of the evaporated sugar solution because of the hydrophobic character of the particles. Optionally, this aggregation of the particles with the micron size bubbles may be further increased by a controlled addition of an anionic partially hydrolized polyacrylamide following aeration. The removal of the aggregates is completed either by filtration or flotation.
REFERENCES:
patent: 2518296 (1950-08-01), Eguchi
patent: 2633453 (1953-03-01), McAllister
patent: 3508965 (1970-04-01), Harrison
patent: 3853616 (1974-12-01), Rundell
patent: 3909287 (1975-09-01), Rundell
patent: 3926662 (1975-12-01), Rundell
patent: 4000001 (1976-12-01), Toth
Davies Hamakua Sugar Co., a division of Theo. H. Davies, Ltd.
Marantz Sidney
Walter William B.
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