| 摘要 |
Sugar solutions may be treated with fine particles of ion exchange resin for example to decolorise and clarify the solutions in the case of anion exchange resins and to invert the sugar or soften the solutions in the case of cation exchange resins. The resins comprise approximately spherical beads of crosslinked copolymer having diameters of 0.01 to 1.5 micrometers and bearing 0.7 to 1.5 ion exchange functional groups per monomer unit. The solutions may contain ionically charged particulate impurities which will form a floc with the ion exchange resin, particularly anion exchange resin, or a separate flocculating agent may be added and the floc subsequently separated from the sugar solution. |
