Sodium Chloride → Sodium Carbonate Decahydrate

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Reaction Steps

In this comparative example, the sodium carbonate solution designated as stream 3 in Example 1, containing 27.2 wt % Na2CO3, 2.6 wt % Na2SO4 and 2.6 wt % NaCl, is subjected to a cooling crystallization at 20° C. to form sodium carbonate decahydrate. In the cooling crystallization, 376 kg/hr of feed solution are introduced to the crystallizer to yield centrifuged, damp sodium carbonate decahydrate at a rate of 250 kg/hr, of which about 5% is mother liquor. The mother liquor composition is about 13.1 wt % Na2CO3, 9 wt % Na2SO4 and 9 wt % NaCl.

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