Technique for automatic quenching of anode effects in...

Details Technique for automatic quenching of anode effects in... Technique for automatic quenching of anode effects in...

C - Chemistry, Metallurgy

25

C

204/49

C25C 3/06 (2006.01) C25C 7/06 (2006.01)

Patent

CA 1146904

TECHNIQUE FOR AUTOMATIC QUENCHING OF ANODE EFFECTS IN ALUMINIUM REDUCTION CELLS ABSTRACT For the clearance of anode effects in operation of electrolytic cells for aluminium production, movement in the metal pool is in- duced to effect short-circuiting of the cell and disturbance of any gas film on the face of the anode(s) by raising the anode(s) and then lowering them to datum position and/or tilting the anode in relation to datum position. Upward movement is terminated either after a predetermined distance or when a predetermined cell voltage is attained. Fresh alumina is introduced into the cell by breaking alumina crust by anode movement or by independent supply.

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