Process for the preparation of anhydrous sodium sulfate from...

Details Process for the preparation of anhydrous sodium sulfate from... Process for the preparation of anhydrous sodium sulfate from...

C - Chemistry, Metallurgy

01

D

C01D 5/00 (2006.01)

Patent

CA 2086153

PROCESS FOR THE PREPARATION OF ANHYDROUS SODIUM SULFATE FROM A BRINE ABSTRACT Process for the preparation of anhydrous sodium sulfate from a brine containing sodium sulfate, comprising: mining the brine from the underground; crystallizing the brine by cooling it to crystallize a fine dust of sodium sulfate hydrated with ten molecules of water known as Glauber salt; separating the Glauber salt from the exhausted solution; melting the Glauber salt to dissolve the crystals of sodium sulfate in its own crystallization water to obtain a sodium sulfate saturated solution with 17% of solids of anhydrous sodium sulfate; separating the crystals of anhydrous sodium sulfate from the saturated solution; recycling the remaining saturated solution to the crystallization step; and drying the anhydrous sodium sulfate crystals.

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