Recovery of chlorine values from a melt oxidation gas

Details Recovery of chlorine values from a melt oxidation gas Recovery of chlorine values from a melt oxidation gas

C - Chemistry, Metallurgy

07

C

23/181, 260/655

C07C 17/00 (2006.01) B01D 53/68 (2006.01) C01B 7/01 (2006.01) C01B 13/32 (2006.01) C01B 7/00 (2006.01)

Patent

CA 1086919

ABSTRACT OF THE DISCLOSURE A molten mixture containing the higher and lower valent forms of a multivalent metal chloride; in particular, cuprous and cupric chloride, is contacted with oxygen, and aqueous hydrogen chloride recycle, to recover the chlorine values by generation of the higher valent metal chloride and also to effect oxidation of the melt by production of the oxychloride. The gas withdrawn from the oxidation contains hydrogen chloride, chlorine and water vapor, with the hydrogen chloride being separated from the gas as aqueous hydrogen chloride and recycled to the oxidation. The chlorine and water vapor in the gas are contacted with activated carbon to produce hydrogen chloride, which is separated as aqueous hydrogen chloride and recycled to the oxidation.

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