Drying unit for the production of pure anionic surfactants in dry form and different physical shapes (flakes, needles, powder and granules) in accordance with the most stringent quality standards.

The unit is based on the use of wiped film evaporators specifically designed and developed for this application.

Major advantages of the Ballestra drying technology are:

  • Very high heat transfer coefficient that ensures the achievement of the desired product dryness in a very short time so to minimize the time of performance of the product at high temperature and, therefore the risk of product degradation.
  • Very accurate control of the wall temperature to prevent local overheating of the surfactant.
  • Mechanical design with wiping blades that ensure a constant and uniform flow of the product through the evaporator preventing accumulation of product inside the machine and, therefore, product degradation due to overheating.