Crystallization of sodium sulphate is one of GEA Messo PT core business. Sodium sulphate, in its anhydrous form and high purity, is used in the manufacture of detergents, paper, glass and has many chemical applications.
It is produced from natural minerals like Mirabilite, Glauberite and Thernadite, or from natural salt lakes.
Secondary sources of sodium sulfate are by-products of chemical processes where the neutralization of acidous (e.g. H2SO4) or alkaline (e.g. NaOH) tail solutions produces a sodium sulphate solution. Typical examples are the regeneration of spin bath liquors, the chromium industry, and the production of Vitamin C. GEA Messo GmbH has been active in all these fields by supplying:

  • Mineral dissolution
  • Brine purification
  • Glauberīs salt crystallization
  • Calcination of the Glauber’s salt by crystallization of anhydrous sodium sulphate, including separation and drying


GEA Messo PT has supplied over 70 installations with capacity ranging from 200 kg/h to 40 t/hr of anhydrous sodium sulphate.

GEA Messo PT maintains a modern Research Centre in which process designs can be evaluated and detailed modeling can be carried out, to ensure a successful installation.

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