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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3028
Title: Recovery of cobalt from secondary sector using extraction in Cyanex 923
Authors: Gupta B.
Deep A.
Tandon S.N.
Published in: Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry
Abstract: A process for the recovery of pure Co(II) from spent Co-Mn and Co-Mo catalysts by its extraction in iii Cyanex 923 is described. The metal ion is partitioned in the organic phase as H2COCl4.2 Cyanex 923 and stripped with a solution of 1 × 10-3 molL-1 H2SO4. The extractant is stable towards prolonged contact with HCl and shows negligible loss in extraction capacity even after recycling for twenty cycles. The partition data have been utilized for developing conditions for the separation of Co(II) from other metal ions, viz., Mo(VI), AI(III), Cr(III), Fe(III), Mn(II), Ni(II), Cu(II), Zn(II) and Cd(II). The separation technique has been extended for the recovery of ∼ 95% Co(II) from spent catalysts. The purity of the metal ions thus obtained approximates to 99%.
Citation: Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry (2003), 42(12): 2954-2958
URI: http://repository.iitr.ac.in/handle/123456789/3028
Issue Date: 2003
ISSN: 3764710
Author Scopus IDs: 7402195167
6602909701
24523635700
Author Affiliations: Gupta, B., Department of Chemistry, Indian Inst. of Technology Roorkee, Roorkee 247 667 (Uttranchal), India
Deep, A., Department of Chemistry, Indian Inst. of Technology Roorkee, Roorkee 247 667 (Uttranchal), India
Tandon, S.N., Department of Chemistry, Indian Inst. of Technology Roorkee, Roorkee 247 667 (Uttranchal), India
Corresponding Author: Gupta, B.; Department of Chemistry, Indian Inst. of Technology Roorkee, Roorkee 247 667 (Uttranchal), India; email: tandon_sn@yahoo.com
Appears in Collections:Journal Publications [CY]

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