Liquid demineralization prior and after isomerization is an essential processing step during starch sweeteners manufacturing. Demineralization prior the isomerization enhances the reaction and removes the trace components, such as ash and protein after. Demineralization is usually performed through anion and cation exchange resins consisting commonly of 6 columns. One column is always in regeneration phase where minerals are removed electrochemically with strong Hydrochloric acid (HCI). Before regeneration can take place, the columns must be rinsed with water to remove any sugar residue. This process is referred to as sweetening-off.
Ion exchange column regeneration
Download the application note to learn how Vaisala K-PATENTS® Process Refractometer measures Brix or Total Dissolved Solids (TDS) and:
- Monitors interface of product and rinse water
- Monitors the concentration of HCI and sodium hydroxide NaOH
- Provides measurements for process control.
The note also includes recommended installation points for best performance.
Download our application note in PDF by filling in the form.
