Incorporation of zinc in ferrous sulfate monohydrate

F. Elgersma; G. J. Witkamp; G. M. van Rosmalen

doi:10.1016/0304-386X(93)90069-P

Incorporation of zinc in ferrous sulfate monohydrate

F. Elgersma^*, G. J. Witkamp, G. M. van Rosmalen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Continuous crystallization experiments on FeSO₄ · H₂O in aqueous solutions containing Zn²⁺ were carried out, at temperatures of 140-165°C, in a stainless steel/glass autoclave. The incorporation of Zn²⁺ in FeSO₄ · H₂O as a function of process parameters such as the temperature and the residence time was determined. Additionally, the solubility of FeSO₄ · H₂O in this temperature region in the presence of ZnSO₄ was determined. The crystallization of FeSO₄ · H₂O yielded a product which contained between 2 and 3 wt% Zn²⁺, depending on the process conditions. The incorporation of Zn²⁺ was also quantified using a partition coefficient which, together with the calculated results for the supersaturation in the various experiments, revealed that the incorporation of Zn²⁺ in FeSO₄ · H₂O increased with the supersaturation, but was mainly influenced by the thermodynamic value of the partition coefficient; that is, a value equal to 0.3 at zero supersaturation. The separation of Fe²⁺ and Zn²⁺ from aqueous solutions by crystallization of FeSO₄ · H₂O has too low a selectivity to justify its use in an integrated hydrometallurgical jarosite treatment process.

Original language	English (US)
Pages (from-to)	301-311
Number of pages	11
Journal	Hydrometallurgy
Volume	33
Issue number	3
DOIs	https://doi.org/10.1016/0304-386X(93)90069-P
State	Published - Jul 1993
Externally published	Yes

ASJC Scopus subject areas

Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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10.1016/0304-386X(93)90069-P

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title = "Incorporation of zinc in ferrous sulfate monohydrate",

abstract = "Continuous crystallization experiments on FeSO4 · H2O in aqueous solutions containing Zn2+ were carried out, at temperatures of 140-165°C, in a stainless steel/glass autoclave. The incorporation of Zn2+ in FeSO4 · H2O as a function of process parameters such as the temperature and the residence time was determined. Additionally, the solubility of FeSO4 · H2O in this temperature region in the presence of ZnSO4 was determined. The crystallization of FeSO4 · H2O yielded a product which contained between 2 and 3 wt% Zn2+, depending on the process conditions. The incorporation of Zn2+ was also quantified using a partition coefficient which, together with the calculated results for the supersaturation in the various experiments, revealed that the incorporation of Zn2+ in FeSO4 · H2O increased with the supersaturation, but was mainly influenced by the thermodynamic value of the partition coefficient; that is, a value equal to 0.3 at zero supersaturation. The separation of Fe2+ and Zn2+ from aqueous solutions by crystallization of FeSO4 · H2O has too low a selectivity to justify its use in an integrated hydrometallurgical jarosite treatment process.",

author = "F. Elgersma and Witkamp, {G. J.} and {van Rosmalen}, {G. M.}",

year = "1993",

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doi = "10.1016/0304-386X(93)90069-P",

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T1 - Incorporation of zinc in ferrous sulfate monohydrate

AU - Elgersma, F.

AU - Witkamp, G. J.

AU - van Rosmalen, G. M.

PY - 1993/7

Y1 - 1993/7

N2 - Continuous crystallization experiments on FeSO4 · H2O in aqueous solutions containing Zn2+ were carried out, at temperatures of 140-165°C, in a stainless steel/glass autoclave. The incorporation of Zn2+ in FeSO4 · H2O as a function of process parameters such as the temperature and the residence time was determined. Additionally, the solubility of FeSO4 · H2O in this temperature region in the presence of ZnSO4 was determined. The crystallization of FeSO4 · H2O yielded a product which contained between 2 and 3 wt% Zn2+, depending on the process conditions. The incorporation of Zn2+ was also quantified using a partition coefficient which, together with the calculated results for the supersaturation in the various experiments, revealed that the incorporation of Zn2+ in FeSO4 · H2O increased with the supersaturation, but was mainly influenced by the thermodynamic value of the partition coefficient; that is, a value equal to 0.3 at zero supersaturation. The separation of Fe2+ and Zn2+ from aqueous solutions by crystallization of FeSO4 · H2O has too low a selectivity to justify its use in an integrated hydrometallurgical jarosite treatment process.

AB - Continuous crystallization experiments on FeSO4 · H2O in aqueous solutions containing Zn2+ were carried out, at temperatures of 140-165°C, in a stainless steel/glass autoclave. The incorporation of Zn2+ in FeSO4 · H2O as a function of process parameters such as the temperature and the residence time was determined. Additionally, the solubility of FeSO4 · H2O in this temperature region in the presence of ZnSO4 was determined. The crystallization of FeSO4 · H2O yielded a product which contained between 2 and 3 wt% Zn2+, depending on the process conditions. The incorporation of Zn2+ was also quantified using a partition coefficient which, together with the calculated results for the supersaturation in the various experiments, revealed that the incorporation of Zn2+ in FeSO4 · H2O increased with the supersaturation, but was mainly influenced by the thermodynamic value of the partition coefficient; that is, a value equal to 0.3 at zero supersaturation. The separation of Fe2+ and Zn2+ from aqueous solutions by crystallization of FeSO4 · H2O has too low a selectivity to justify its use in an integrated hydrometallurgical jarosite treatment process.

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DO - 10.1016/0304-386X(93)90069-P

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JO - Hydrometallurgy

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IS - 3

ER -

Incorporation of zinc in ferrous sulfate monohydrate

Abstract

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