Recovery of chlorine

Details Recovery of chlorine Recovery of chlorine

C - Chemistry, Metallurgy

01

B

53/161

C01B 7/03 (2006.01) C01G 49/06 (2006.01) C01G 49/10 (2006.01)

Patent

CA 1249725

RECOVERY OF CHLORINE ABSTRACT Chlorine may be recovered from residues from the fluidised bed chlorination of iron-containing metalliferous oxidic materials, such as ilmenite, bauxite, chromite, wolframite, scheelite, tantalite or columbite, the residues containing condensed iron chloride and blow-over bed solids, by heating the residue to revolatalise the iron chloride and reacting it with oxygen. The quantity of iron chloride in the oxidic material is controlled relative to the quantity of blow-over carbon so that the quantity of carbon is sufficient on combustion to provide the required heat but is insufficient to cause undue dilution of the chlorine produced by virtue of its combustion products. Chlorine of a concentration suitable for direct recycle to a chlorination process, e.g. of 30% to 50% volume concentration is produced.

483824

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