C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 11/14 (2006.01) C25B 1/26 (2006.01) C25B 15/08 (2006.01)
Patent
CA 2048565
Disclosed is a method of removing sulfate ion from an aqueous sodium chlorate liquor. A crystallization temperature is selected between about -15 and about 0°C and the maximum concentration of sodium chlorate that is soluble in the liquor at that temperature is determined. The liquor is diluted so that the concentration of sodium chlorate in the liquor is less than that maximum concentration and the liquor is cooled to that temperature so that the sulfate ion in the liquor crystallizes as sodium sulfate decahydrate but the sodium chlorate does not crystallize.
Bommaraju Tilak V.
Ruthel Walter W.
Bommaraju Tilak V.
Nexen Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Ruthel Walter W.
LandOfFree
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