Removal of Iron in Hot Acid Leach Liquor by Hematite Process

Abstract:

Article Preview

Lab-scale iron removal experiments were carried out in a batch 2-L autoclave to investigate the variables such as temperature, gas kind, for a better option for removal of iron in hot acid leach liquor in zinc conventional process. Experimental results showed precipitation temperature and duration is the most important factors, followed by pressure, and finally gas kind and stirring rate. Under a reasonable precipitation conditions: gas kind, air; temperature, 130oC; pressure, 0.8 MPa; duration, 15 min, iron precipitation yield reached 75.12%. Iron precipitation is relative pure and therefore it can be marketable.

Info:

Periodical:

Advanced Materials Research (Volumes 581-582)

Edited by:

Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen

Pages:

731-734

Citation:

C. Liu et al., "Removal of Iron in Hot Acid Leach Liquor by Hematite Process", Advanced Materials Research, Vols. 581-582, pp. 731-734, 2012

Online since:

October 2012

Export:

Price:

$38.00

[1] J. W. Graydon and D. W. Kirk. The mechanism of ferrite formation from iron sulfides during zinc roasting[J]. Materials Transactions B, 1988, 19 (4): 777-785.

DOI: https://doi.org/10.1007/bf02650197

[2] S. R. Swarnkar, B. L. Gupta and R. Dhana Sekharan. Iron control in zinc plant residue leach solution[J]. Hydrometallurgy, 1996, 42(1): 21-26.

DOI: https://doi.org/10.1016/0304-386x(95)00077-t

[3] Dutrizac J E. The physical chemistry of iron precipitation in the zinc industry[A]. Cigan J M, Mackey T S, O\Keefe T J. Lead-Zinc-Tin\, 80. The Metallurgical Society of AIME[C], Warrendale, PA. 1979: 532-564.

[4] Boxal, J M, James, S E. Experience with the goethite process at National Zinc[A]. In: Dutrizac, J.E., Monhemius, A.J. (Eds. ), Iron Control in Hydrometallurgy. Ellis Horwood, Chichester, UK, 1986, pp: 676–686.

[5] Ropenack, A V. Hematite–the solution to a disposal problem–n example from the zinc industry[A]. In: Dutrizac, J.E., Monhemius, A.J. (Eds. ), Iron Control in Hydrometallurgy. Ellis Horwood, Chichester, UK, 1986, pp: 730–741.

Fetching data from Crossref.
This may take some time to load.