Process for treating a gas containing a fluorine compound

Details Process for treating a gas containing a fluorine compound Process for treating a gas containing a fluorine compound

C - Chemistry, Metallurgy

01

F

23/166

C01F 7/50 (2006.01) B01D 53/68 (2006.01)

Patent

CA 1181226

ABSTRACT OF THE DISCLOSURE: A process for treating a gas containing a fluorine compound which comprises the steps of contacting said gas with an aqueous solution as an absorbent containing aluminum fluoride and sulfate radical at a concentration of 3 to 30 g/l to absorb the fluorine compound, producing a solid phase including aluminum fluoride hydrate and/or basic aluminum fluoride by adding aluminum hydroxide and/or alumina to the resultant aqueous solution obtained in the absorbing step, and separating said solid phase from a slurry containing said solid phase obtained in the producing step.

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