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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2992
Title: Extraction and separation studies on Pt(IV), Ir(III) and Rh(III) using sulphur containing extractant
Authors: Gupta B.
Singh I.
Mahandra H.
Published in: Separation and Purification Technology
Abstract: The present work reports distribution of platinum(IV), iridium(III) and rhodium(III) from HCl, H2SO4 and HNO3 (0.1-6 mol L-1) media using Cyanex 471X diluted with toluene. Detailed studies have been conducted to evaluate the effect of different variables influencing the extraction such as equilibration time, temperature, diluent and concentration of extractant. An assessment of the loading capacity, regeneration power and stability of extractant has been made. The extraction behaviour of associated metals namely gold, silver, iron, nickel, cobalt, chromium and copper has been investigated and the conditions for their binary separations involving platinum metals have been optimised. The stoichiometric composition of the extracting platinum and iridium species have been identified. Based on the extraction data separation schemes have been designed to recover platinum, iridium and rhodium from synthetic mixture and real sample. © 2014 Elsevier B.V. All rights reserved.
Citation: Separation and Purification Technology (2014), 132(): 102-109
URI: https://doi.org/10.1016/j.seppur.2014.04.045
http://repository.iitr.ac.in/handle/123456789/2992
Issue Date: 2014
Publisher: Elsevier
Keywords: Cyanex 471X
PGMs
Recovery
Separation
Solvent extraction
ISSN: 13835866
Author Scopus IDs: 7402195167
57195320309
56193939400
Author Affiliations: Gupta, B., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Singh, I., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Mahandra, H., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Funding Details: The authors wish to thank Cytec Inc., Canada, for gifting the Cyanex 471X. The financial support to one of the authors by the Council of Scientific and Industrial Research (CSIR), New Delhi, India is gratefully acknowledged.
Corresponding Author: Gupta, B.; Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India; email: dr.binagupta@gmail.com
Appears in Collections:Journal Publications [CY]

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