Continuous process for the recovery of sugar from molasses
AssigneeThe Amalgamated Sugar Company
InventorsKarlheinz W. R. Schoenrock, Chia-Lung Hsieh, Hugh G. Rounds
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Abstract
In obtaining calcium saccharate from molasses solution, active CaO, in the form of burned lime, hydrated lime or milk of lime, is added to the solution; the mixture is cooled to below 20.degree. C.; a stream of slurry of finely subdivided lime ground in an inert organic liquid carrier is injected into a stream of the aforesaid mixture; the cold combined stream is passed through a motionless static mixer; and the so-mixed combined stream is filtered to remove precipitated calcium saccharate.
Claims6
A continuous process for the precipitation and recovery of calcium saccharate from molasses which comprises treating an aqueous molasses solution containing 5 - 20% by weight of sugar with 15 - 50% of the active CaO required to react with the sugar in the molasses, the active CaO being added to the aqueous molasses solution in the form of burned lime, hydrated lime or milk of lime, cooling the molasses/lime mixture to below 20.degree. C., injecting into a continuous first stream of this molasses/lime mixture a second stream of a slurry of ground lime in an organic liquid carrier, said carrier being inert to CaO and to sugar, said ground lime slurry injected being sufficient to provide 40 - 70% of the active CaO required to react with the sugar in the molasses, passing the combined streams through a motionless, static mixer to obtain homogeneity of the cool mixture containing the resulting precipitated calcium saccharate, maintaining the temperature below 20.degree. C. throughout, filtering the cool mixture containing the precipitated calcium saccharate and washing the resulting cold filter cake.
Dependencies are inferred from the claim text.