Treatment of chlorination residue

Details Treatment of chlorination residue Treatment of chlorination residue

C - Chemistry, Metallurgy

22

B

23/181, 53/236

C22B 21/00 (2006.01) C01B 7/01 (2006.01) C01F 7/60 (2006.01) C01F 11/46 (2006.01) C22B 26/00 (2006.01)

Patent

CA 1178026

A B S T R A C T Alkali and alkaline earth metal chlorides contained in a residue of a chlorination process of a reed material of bauxite or clay associated with coal are removed by the addition of sulfuric acid which causes their conversion to their sulfats form and the simultaneous production of hydrochloric acid. The hydrochloric acid can be recycled to the chlorination process. The hydrochloric acid may be utilized, for example, as a binder of the reed material, to prechloridize the Seed material or as a portion of the leach solution when the chlorination process is a hydrochloric acid leach.

404917

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