ITMA ASIA + CITME, Singapore 2025Products & Services Caustic Recovery Plants (CRP)

Caustic Recovery Plants (CRP)

Exhibitor
Körting Hannover GmbH

Mercerisation is a finishing process in the textile industry where the textile fibres are treated under tensile stress with caustic soda. Large quantities of diluted caustic soda (weak lye) are a waste product of this process. Körting Caustic Recovery Plants (CRP) can turn a very large proportion of this weak lye into reusable concentrated caustic soda (strong lye). Körting Hannover has been on the market longer than any other manufacturers in this field and is the global market leader of CRP.

Sustainability has become an important goal, particularly for many companies in the textile industry. Körting technology allows textile companies to introduce sustainability into the mercerisation process. Due to the recovery process, the plant operator doesn’t have to bother disposing of the weak lye. The environment benefits directly. Because the lye can be reused, savings of one million euros and more per year are possible. The CRP can show a return on investment within one year. As a result, plant operators can permanently cut the overheads incurred from mercerisation. When designing the plant, Körting engineers already include the savings potential in the calculation.

Körting CRP are not just limited to white bleached fabrics. They can also be used for yarn-dyed and denim fabrics.


Further reading

4-stage caustic recovery plant (CRP)

Most of the CRPs are 3 or 4-stage evaporation plants.

The caustic recovery plant (CRP) separates the weak lye (washing liquid) into strong lye and vapour condensate. The strong lye (recovered lye) can be reused in the mercerising machine.

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