CentPro is a leading manufacturer actively involved in developing advanced turnkey solutions for a wide range of industrial domains. Our expertise coupled with modern technological machinery and manufacturing unit has established CentPro as one of the best providers of advanced turnkey solutions.

The caustic recovery plant designed and developed by CentPro is predominantly a multi-effect evaporation plant. In the process of caustic recovery, the lye (caustic soda) is re-concentrated by subjecting it to heat in a heat exchanger. Further, when the lye reaches the evaporator, a significant amount of vapor is released as a result of water evaporation that eventually increases concentration.

How it works?

In the case of Knit Mercerizing, there are very few impurities that are present such as starch. Hence, due to the low presence of impurities, the caustic that has been recycled is pure as well. In addition, the caustic that has been recycled can be used for a longer duration prior to when the impurities reach a certain level.

Applications

Knit Mercerizing

Typically, a batch-type extraction system is made of a cylindrical pan that is steam jacketed and a feed part at the top to load the raw material. In addition, the wet residue is discharged through the bottom which can be opened hydraulically. Further, the aroma of the product, oils, and the organic solvents can be recovered with a vacuum condenser line. Applications: Herbal extraction, Natural dyes extraction, hydrolyzed meat extraction, extraction of poly phenols.

Grey Mercerizing

In the case of Grey Mercerizing, it contains a lot of size in the liquor that is weak and thus the recycled caustic needs to be replaced frequently. In addition, it is hard to identify the source of the sizing material. To ensure that the caustic that has been recovered is usable, the viscous and lower gpl caustic has to be treated. In addtion, the recovered caustic is dossed with fresh caustic in order to maintain its gpl.