Dyes and Fine chemical manufacturing has stages where desalting has to be done to make the final purity of the product. The process gives a dual advantage, it not does the desalting or ash removal, but also helps to concentrate the final molecule be it a dye, dye intermediate or a fine chemical. The limit of salt / mineral in the final product are the drivers for the introduction of membrane technology into your processing

Process membrane System


  • Dyes
  • Dye Intermediates
  • Fine chemicals

Features and Advantages

  • Membrane system is very compact
  • Energy saving
  • User friendly and easy to operate
  • Environmentally friendly
  • High flux and high temperature stability at pH range 1- 13
  • Salt removal upto 100% possible
  • Product concentration to the factor of 10x possible  

Process Operation
Poresep Membrine are effectively used to demineralise or desalt dyes and fine chemicals.  Membrane process is operated at nominal pressures and the separation is based on molecular size and ionic level. Due to the physical weight/size of impurities (insolubles) compared to the soluble caustic, the impurities simply get rejected on the membrane surface. The membrane pore is a safe barrier for any insoluble matter (i.e. protein complexes, triglycerides, fats, oils, bacteria, colloidal matter, fibres etc) irrespective of the incoming concentrations.
Proper clarification and pre-treatment has to be done before the separation can take place.
The system is available in Polymeric and Ceramic configurations – depending on the life cycle costs the customer can choose from the two options.

Technical Specifications
Can handle upto 100 m3/ Day of waste liquids
Temperature resistant membranes upto 80 Deg C
High pH resistance and stability