Purification of bayer process liquors

Details Purification of bayer process liquors Purification of bayer process liquors

C - Chemistry, Metallurgy

01

F

23/246

C01F 7/46 (2006.01) C01F 7/47 (2006.01)

Patent

CA 1200075

ABSTRACT Sodium oxalate impurity is removed from oxalate- enriched Bayer process caustic liquor by gradual increase of the caustic concentration of the liquor, thus providing a staged precipitation of the sodium oxalate in a well- crystallized and readily filterable form.

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