A technical assessment of a new continuous ion exchange decolourisation plant at the Tongaat-Hulett Rossburg refinery*

The Tongaat Hulett sugar refinery in Durban has recently commissioned a continuous ion-exchange (CIX) plant which has become a third ion-exchange stage in its sugar refining process following the existing two fixed bed (FB) batch ion-exchange stages. The plant will initially be evaluated and optimised as a third polishing stage using styrenic resin but the design is such that the plant can be operated as any stage with either acrylic or styrenic resin.

The installed CIX plant consists of 30 resin vessels containing 1.3 m3 of resin each and has been designed to process up to . . .

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