The chromatographic separation system, sometimes called a pseudo-moving bed column, makes use of unique resins to preferentially retard the flow of one component of the feed stream. Resins may be anionic or cationic and will produce different results; separating the components of the feed into streams with unique concentration and purity. Arkenol has worked with Dow, Mitsubishi, Finex, Rohm & Haas and other suppliers of resin beads to optimize the conditions under which an economic acid/sugar separation may take place. Raffinate streams containing sugar at a typical 12-15% concentration are produced at purities of greater than 98%.
Similar systems are found in the sugar industry throughout the world where they are used to separate sugars (e.g., glucose, fructose) in molasses streams. Scale-up to commercial units is typically accomplished through the use of pilot units to the 10-column unit from IWT shown at right.
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