Method and apparatus for dispersing alumina in a molten...

Details Method and apparatus for dispersing alumina in a molten... Method and apparatus for dispersing alumina in a molten...

C - Chemistry, Metallurgy

22

B

C22B 21/02 (2006.01) C25C 3/14 (2006.01)

Patent

CA 2424388

An apparatus for supplying and dispersing alumina into a molten electrolyte in an aluminum reduction cell is disclosed. The apparatus comprises: (a) an alumina feeder for charging a predetermined amount of alumina into a pre-selected area on a crust of solidified electrolyte; (b) a crust breaker being adapted to push the charged alumina into the molten electrolyte while breaking the crust; and (c) a gas supplying device for blowing a compressed gas beneath the surface of the molten electrolyte through a gas nozzle such that the blown compressed gas causes agitation in the molten electrolyte to accelerate dispersion and dissolution of the alumina into the molten electrolyte. The gas nozzle is provided in the crust breaker at the lowest point thereof.

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