Method of precipitation of pure aluminium-chloride from...

Details Method of precipitation of pure aluminium-chloride from... Method of precipitation of pure aluminium-chloride from...

C - Chemistry, Metallurgy

01

F

23/167

C01F 7/56 (2006.01) C01F 7/22 (2006.01) C01F 7/30 (2006.01) C01F 7/62 (2006.01)

Patent

CA 1136380

A B S T R A C T Method of producing aluminiumchloride with a low content of magnesium from hydrochloric acid solutions which contain ions of aluminium and magnesium and from which the aluminiumchloride is precipitated by hydrochloric gas and where the precipitation is carried out continuously in cascade so that the major part of the aluminium will be precipitated from solutions in which the ratio between aluminium and magnesium calculated as g Al+3/ g Mg+2 is above 0,5. Produced aluminiumchloride may be transformed to aluminiumoxide by calcination.

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