Sugar decolourization
In some cases the colour of sugar produced from cane has to be removed to meet the required specification of the soft drink industry. The most economical process is to use specific ion exchange resins to remove these colour bodies.
Sugar decolourization
In many countries white sugar for the production of soft drinks is expensive and/or difficult to purchase. On the other hand slightly coloured sugar generally produced from cane is much less expensive and easier to find. In this case the colour has to be removed to meet the required specification of the soft drink industry.
The most economical process is to use specific ion exchange resins to remove these colour bodies. The figures show two processes to decolourize slightly coloured to medium coloured cane sugar syrups. In the case of sugar decolourization, the regeneration of the strong anion exchange resins is performed with alkaline brine which can subsequently be recovered by nanofiltration.
For sugar syrups with less than 100 ICUMSA, styrenic anion exchange resins such as TREVERLITE IXA310/CL can be used. For higher colour loads, a combination of styrenic and acrylic anion exchange resins, such as TREVERLITE IXA310/CL and TREVERLITE IXA510/CL, is recommended.
Process details7: Inlet 100 ICUMSA
Process details7: Inlet 300 ICUMSA7
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