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Glauber's Salt

Glauber's Salt
Glauber's Salt
Product Code : SALT
Product Description

Textile effluents are a mix of various dye effluents & salts. In some cases , they contain a major part of

Sodium sulphate .This salt can be separated by crystallizing by adiabatic cooling.

Since crystallizing is a purification process, the salt formed by this is pure (without any other salt or colour).

The salt which is also known as Glauber's Salt (Na2 So4. 10H2O) is a hydrated salt which is used in the

Dyeing process in textile mills. This also has a good sale value.

The process involves concentrating the effluent containing Sodium Sulphate to the concentration of 20-25% strength.

This concentration is then chilled in a crystallizer up to a temperature of 10-12°C. At this temperature

Glauber s Salt starts crystallizing out of the solution in form of odorless crystals leaving behind ML of 14-15%.

The slurry inside the cryst is evenly circulated with help of an axial flow pump, which helps in controlled nucleation & growth rate. This avoids choking or uneven salt crystal sizes making it easier to recover.

The crystallizer is designed for continuous operation, by pumping the chilled slurry to a pusher centrifuge which is use to separate the salt from the colored mother liquid . This is either taken to the feed or the solar pond depending on the amount of impurities present in feed .

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