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US 4,247,340 AGranted
Purification of sugars using emulsion anion exchange resins
AssigneeRohm and Haas Company
InventorPeter G. Cartier
Life of this patent
Estimating the term…
Abstract
Impure sugar solutions containing charged particulate impurities are treated with strongly basic emulsion anion exchange resin particles to form flocs of the charged particulate impurities and the resin particles. These flocs remove dissolved ionic impurities because of their ion exchange functionality, and also remove color-imparting impurities.
Claims11
A process for purifying impure sugar solutions, including simultaneous decolorization and clarification, comprising the steps of:
- (a) contacting the impure sugar solution with previously isolated, submicroscopic ion exchange resin particles in the form of approximately spherical beads of crosslinked copolymer having diameters within the range from about 0.01 to about 1.5 micrometers and bearing from about 0.7 to about 1.5 anion exchange functional groups per monomer unit, and
- (b) separating the ion exchange resin particles from the sugar solution.
Dependencies are inferred from the claim text.