LEWATIT® S 1668

Lewatit® S 1668is a food grade, gel-type, strongly acidic cation exchange resin based on a styrene-divinylbenzene copolymer. The optimized kinetics lead to an increased operating capacity compared to ion exchange resins with heterodisperse bead size distribuion. An strong improved value of the total capacity provides additionally for long running times with low leakage and economical regeneration amount.

Lewatit® S 1668 is especially applicable for:

• the softening of solutions, especially for thin juices of the sugar and pectin industries
• the decationonisation of solutions of organic products, e.g. sugar beet, sugar cane, starch sugar, glycerine, gelatine, whey and food acids etc.
• the extraction of amino acids, e.g. lysine

Lewatit® S 1668 adds special features to the resin bed:

• high exchange flow rates during regeneration and loading
• a good utilization of the total capacity
• a low sweeten-on-, sweeten-off- and rinse water demand
• a homogeneous throughput of regenerants, water and solutions; therefore an homogeneous working zone
• nearly linear pressure drop gradient for the whole bed depth; therefore an operation with higher bed depth possible
• good separation behavior of the components in a mixed bed application

If using Lewatit® S 1668 to treat potable water and the aqueous solutions listed above, special care should be given to the initial cycles of the new resin. Please refer to the recommended start-up conditions available on request.