Distillation of solvents

 

The chemical, pharmaceutical and food industries and also the field of environmental technology all use and handle a wide range of solvents and volatile compounds in quite differing ways.

Whether concentrating, cleaning or recovering, working with these solvents requires a high level of practical experience and a theoretical understanding of the chemical engineering principles underlying the processes of evaporation, stripping and rectification.

GEA Wiegand employs the latest computer programs and up-to-date data bases in its design and planning, thereby simulating the plants in operation and achieving the best layout.

Our Research and Development Center is on hand should knowledge of particular product characteristics which are crucial to the design be lacking. This also enables complex plant systems to be designed and optimum operating conditions to be established when handling less familiar materials or material compounds.


 4-effect continuously operating rectification plant with additional final effect and system for concentration of residue, heated with live steam


1-5 falling film evaporator/column, effects 1-5
6 thin film evaporator
7.1 regeneration condenser
7.2 H2O regeneration condenser
8 gas cooler
9 preheater
A product
B.1 regeneration
B.2 H2O regeneration system
B.3 residue
C pure condensate
E steam
F cooling water


Areas of application
Food industry

  • concentration of precipitation alcohol during the production of pectin
  • removal of ammonia from ion exchange eluate
  • dealcoholization of beer and alcohol recovery
  • recovery of different types of solvents from miscella