Ion exchange processes have been of considerable assistance in the cane sugar industry for the reduction of scaling in evaporators and other heat exchange equipment.
The formation of scales on heat exchange surfaces has been a serious problem in cane sugar production. Under the best of conditions, frequent shutdowns with expensive labor and chemical costs have been experienced. The repeated use of chemicals to dissolve scale followed by reheating of the equipment results in high mechanical maintenance and costly equipment repair. Added to these items is the serious energy shortage which makes efficient heat exchange and heat utilization very important. Considering these matters it is not surprising that the removal of scale formers by ion exchange has received considerable attention.
The color value is an important index of the quality of sugar. The high color value is due to the high content of colored impurities in the material. Modern sucrose refining technology is decolorized by IX resin, especially in the production of some refined sugar and high-grade syrup.
Lanlang has two kinds of sucrose sugar decolorization IX resin, styrene matrix, and acrylic matrix. Styrene matrix shows high selectivity for sugar colorants, but not easy to regenerate. Unlike the styrene matrix, the Acrylic matrix could be completely regenerated with sodium chloride solution, it is usually employed before the styrene matrix as a good protect, while the styrene matrix as polishing resin.