Continuous ion exchange principle:

Ion exchange technology is based on resin functional groups and materials in the adsorption of specific ions carried out by the exchange process. Ion exchange is a reversible equivalent equivalent exchange reaction. Although traditional ion exchange applications uses a fixed bed to achieve, our analysis of the work of the fixed bed indicate that the resin bed will be divided into three sections during the exchange process, namely the saturated zone, the active zone (mass transfer zone) and the fresh resin zone. As the exchange progresses, the mass transfer zone continues to move down until the bottom exchange is complete. The entire process only the mass transfer zone is in working condition, saturated area and fresh resin area idle, and thus the resin utilization rate is low. In order to improve the utilization of resin, we transfer the mass transfer area into several small units. Once the above small units are saturated, they are removed for washing and regeneration. Then, the fresh resin unit for processing is returned to the bottom of the mass transfer zone, which greatly improves the utilization of the resin.

In order to be able to achieve automatic and efficient operation of the resin unit, we have adopted a new system design concept. The resin column small unit into a turntable, through the rotation of the turntable to achieve the switch, and the material through an automatic rotation control method. The resin column is divided into exchange, washing, regeneration, rinsing and other functional areas. When the resin unit reaches the specified area to carry out the corresponding process, each process can be carried out independently. This is also the case for the overall process of continuous operation.

Continuous ion exchange advantages:

l  Integrate all the steps that can run continuously and have strong system matching;

l  Significantly reduce the amount of resin, and give full play to the use of resin potential;

l  Extend the service life of the resin;

l  Reduce water and chemical consumption, and significantly reduce operating costs and reduce sewage emissions;

l  Remove or separate substances with different characteristics, which can be complex process simplification;

l  Maintain the stability of the product composition and concentration in the feed liquid;

l  Effectively improve the purity and concentration of product liquid, saving the cost of follow-up technology;

l  The use of multi-column system can be flexible to change the production process;

l  Compact, small footprint, easy to install in any location;

l  Fully automated, programmed operation control, to ensure continuous and stable operation of the equipment; and

l  Flexible to adjust the rotation speed or the flow rate.

Continuous ion exchange Typical applications:

l  Cologne is converted to gulonic acid;

l  Vc-Na is converted to Vc;

l  Lysine extraction;

l  Erythromycin extraction;

l  Glutamine extraction;

l  Colistin sulfate extraction;

l  CPC sodium extraction;

l  Glucose demineralization;

l  Sorbitol removal;

l  Tryptophan refining;

l  Threonine refining;

l  Glutamate refining;

l  Aspirin refining;

l  Ribose desalination;

l  lactate desalination;

l  Citrate desalination;

l  Cologne desalination;

l  Citric acid decolorization;

l  Potassium sulfate production;

l  Potassium nitrate production;

l  Plutonium purification;

l  Nicotinamide recovery;

l  Metal gallium recovery;

l  Recovery of uranium in phosphoric acid;

l  Recycling of waste water;

l  Lithium recovery (rare earth);

l  Salt in the recovery of metal;

l  Recover fluoride in waste water;

l  Waste water in addition to zinc;

l  Protein separation in cheese whey;

l  Removal of copper-vanadium catalyst in adipic acid;

l  Succinic acid to remove copper / alum; and

l  Copper electrolytic solution to remove iron

Technical Parameters

For further information on Continuous ion exchange laboratory equipment products, please do not hesitate to contact  our technical service team. We look forward to helping you meet all of your membrane needs.

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