Aluminum sulfate manufacturing process

Details Aluminum sulfate manufacturing process Aluminum sulfate manufacturing process

1977-03-09

1979-07-10

Vertiz, O. R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423128, C01F 774

Patent

active

041608151

ABSTRACT:
There is disclosed a continuous process for the manufacture of aluminum sulfate by the reaction of sulfuric acid with an alumina-containing solid in an aqueous suspension. The reaction stream is passed into a continuous flow reaction zone that is maintained at a temperature controlled from 225.degree. to 260.degree. F. and under superatmospheric pressure, preferably, autogenic pressure. The reactants are passed through the reaction zone with a residence time of from 5 to about 45 minutes, sufficient to achieve from 78% to 100% completion of the reaction. An intimate admixture of the reactants is achieved by blending the reactants in a mixing zone wherein the combined streams are diverted into helical flow with repeated reversal in the direction of rotation of the helical flow during passage through the mixing zone.

REFERENCES:
patent: 1962498 (1930-01-01), Fross
patent: 3079228 (1963-02-01), Skay
patent: 3226188 (1965-12-01), Ruter et al.
patent: 3286992 (1965-11-01), Armewiades et al.
patent: 3667905 (1972-06-01), Hennings

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