The DOI matches its Crossref record; 16 of the 17 references it cites were found in a registry or an index.
Purification of nickel sulphate solutions containing iron, copper, cobalt, zinc and manganese
Abstract
Acidic nickel‐bearing solution containing iron, cobalt, manganese, zinc and copper was processed through a solvent extraction and precipitation technique to obtain a pure nickel sulphate solution. Iron was extracted using 0.2 M Cyanex‐272 (partially neutralised) as the extractant. Stripping of iron from the loaded organic has also been studied. After iron recovery through solvent extraction the raffinate still contained 0·25 g dm−3 of iron which was quantitatively separated by a lime precipitation technique. During this iron precipitation there was no loss of cobalt and nickel but copper, manganese and zinc were coprecipitated to some extent. From the iron‐free nickel sulphate solution the other impurities were extracted using the same extractant (Cyanex‐272) in a single stage. The metal ions from the loaded organic were stripped using a 0·5% (v/v) H 2 SO 4 solution in a single stage. The entire operation needs only seven stages: two stages for iron extraction, three stages for iron stripping from the loaded organic, and one stage each for extraction and stripping of other impurities. In the entire operation the loss of nickel was less than 0·5%.
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“Cyanex 272 can selectively extract Fe(III) from sulfate solutions over Cr(III) and Zn(II) or Co(II), Ni(II), Mn(II) in the solution pH range of 1.8 to 2.5, while Cyanex 302 could only separate Fe(III) over Co(II) and Ni(II) [6,44,45].”
From Review on the Comparison of the Chemical Reactivity of Cyanex 272, Cyanex 301 and Cyanex 302 for Their Application to Metal Separation from Acid Media (2020) · cites this paper as [45]
Citations
Cites
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Electrolytic nickel recovery from lithium-ion batteries
Lupi, C., & Pasquali, M. (2003) · Minerals Engineering · doi:10.1016/s0892-6875(03)00080-3 · Cited by 102
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Metadata
- Authors
- Senapati, D., Chaudhury, G. R., & Sarma, P. V. R. B.
- Affiliations
- Institute of Minerals and Materials Technology (IN)
- Corresponding author
- Chaudhury, G. Roy
- Venue
- Journal of Chemical Technology & Biotechnology
- Publisher
- Wiley
- Published
- 1994-04
- Volume
- 59
- Issue
- 4
- Pages
- 335-339
- ISSN
- 0142-0356 (ISSN-L)
- 0268-2575
- 1097-4660
- OpenAlex
- W2049811076
- Cited by
- 16
- References
- 17
- Citations by year
- 2023: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2014: 1 · 2012: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Chemical Technology & Biotechnology (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Metals and Alloys › Extraction and Separation Processes
- Physical Sciences › Chemical Engineering › Filtration and Separation › Chemical and Physical Properties in Aqueous Solutions
- Physical Sciences › Chemistry › Analytical Chemistry › Analytical chemistry methods development
- Keywords
- solvent extraction, Cyanex 272, iron removal, lime precipitation, impurity separation, copper, cobalt, zinc, manganese, nickel recovery
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