Recovering magnetite and ammonium sulphate from ammonium jarosit

Details Recovering magnetite and ammonium sulphate from ammonium jarosit Recovering magnetite and ammonium sulphate from ammonium jarosit

1978-02-10

1979-04-17

Hearn, Brian

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

423152, 423548, 423632, C01G 4914, C01G 4908, C01C 1246

Patent

active

041500954

ABSTRACT:
Ammonium jarosite is converted to hematite or magnetite and ammonium sulphate. The invention can be used for removing iron from a feed solution containing dissolved ferrous sulphate. The feed solution is treated with ammonium sulphate and oxygen to precipitate ammonium jarosite which is then separated from the treated solution to produce an ammonium jarosite slurry and a separated solution containing sulphate ions. The ammonium jarosite slurry is treated with ammonia to convert the ammonium jarosite to hematite or magnetite and ammonium sulphate solution. The ammonium sulphate solution is separated from the hematite or magnetite, and a portion of the separated ammonium sulphate solution is recycled to the ammonium jarosite precipitation step, the remaining portion of the separated ammonium sulphate solution being recovered.

REFERENCES:
patent: 2776207 (1957-01-01), Mancke
patent: 2871116 (1959-01-01), Clark
patent: 3436177 (1969-04-01), Spedden et al.
patent: 3691038 (1972-09-01), Von Roepenack et al.
patent: 3910784 (1975-10-01), Rastas
Mellor, Inorganic and Theoretical Chemistry, vol. XIV, Longmans Green, Co., NY (1935), pp. 328, 343, 344.

Affiliated with

Also associated with

Rating

Recovering magnetite and ammonium sulphate from ammonium jarosit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovering magnetite and ammonium sulphate from ammonium jarosit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovering magnetite and ammonium sulphate from ammonium jarosit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1261847