Recovery of chlorine

Abstract From the Canadian patent

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 …