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Anhydrous Sodium Sulphate Plant

Sodium sulfate, known as disodium sulfate and Sodium sulphate, in its anhydrous form with high purity, is used in the manufacturing of detergents, paper, and glass and has many chemical applications. It is produced from natural minerals like Mirabilite, Glauberite and Thernadite, or from natural salt lakes and as a byproduct of a verity of chemical manufacturing processes, such as ascorbic acid, battery acid recycling, boric acid, cellulose, chromium chemicals, lithium carbonate, rayon, resorcinol, and silica pigments. Manufacturing of anhydrous Sodium Sulphate involves following process,

  • Dissolution Process
  • Purification Process
  • Crystallization Process
  • Separation Process
  • Drying Process.

Production and preparation :

Sodium sulfate can be obtained directly from the minerals or from the treatment of sodium chloride with sulfuric acid and evaporating to

Crystallization:

It is also produce industrially by the reaction of magnesium sulfate and sodium chloride in solution followed by crystallization. In both cases, Sodium sulfate is subsequently crystallized as the decahydrate product which can easily convert to anhydrous form upon heating.

Applications:

1. The anhydrous salt is used for drying certain organic liquids, Because of its moisture-adsorbing ability.
2. It is also used in the manufacture of glass, paper pulp, paper board, and as a raw mater ial for the production of various chemicals.
3. Sodium sulfate is also used as a filler and extender in dry powder, laundry and dish washing detergent products.
4. In textile industry, the anhydrous salt is added to the dye bath to drive the dye from the solution onto the fibers and to promote an even finish.

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