Method for the hydrolytic precipitation of iron

Details Method for the hydrolytic precipitation of iron Method for the hydrolytic precipitation of iron

2006-10-10

2006-10-10

Vanoy, Timothy (Department: 1754)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

C423S140000, C423S146000, C423S147000, C423S150100, C423S150300, C423S099000, C423S109000

Reexamination Certificate

active

07118719

ABSTRACT:
The invention relates to a method for the hydrolytic precipitation of iron as jarosite from a sulphate-containing solution in connection with zinc recovery from zinc calcine. The recovey contains neutral leach, ferrite leach, zinc electrolysis and iron precipitation stages. The ferrite included in the calcine is leached with return acid of the electrolysis after which the iron present in ferrous form is neutralized and routed to an iron precipitation stage, where the iron is oxidised to the trivalent form using an oxygen-containing gas. Also present in the precipitation stage arc Na, K or NH4ions and jarosite nuclei.

REFERENCES:
patent: 3434947 (1969-03-01), Steintveit
patent: 3652264 (1972-03-01), Bodson
patent: 3985857 (1976-10-01), Menendez et al.
patent: 4042474 (1977-08-01), Saarinen
patent: 4128617 (1978-12-01), DeGuire et al.
patent: 4193970 (1980-03-01), Sefton et al.
patent: 4305914 (1981-12-01), Pammenter et al.
patent: 5453253 (1995-09-01), Von Ropenack et al.
patent: 6340450 (2002-01-01), Fugleberg et al.
patent: 2104736 (1995-02-01), None
patent: WO 97/07248 (1997-02-01), None
patent: WO 98/06879 (1998-02-01), None

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