| Studies on solvent extraction of iron(III) as a step for conversion of a waste effluent to a value added product. | |
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MedLine Citation:
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PMID: 21862202 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Solvent extraction of iron(III) from actual sulphate waste pickle liquor was investigated using trialkylphosphine oxide diluted with kerosene. The waste pickle liquor was procured from a local company which deals with the manufacturing of pipes and tubes made of iron and steel. Various parameters were studied to optimise a suitable condition for the maximum extraction of iron. The composition of the aqueous feed used in the experiment was 60.88 g/L Fe(III), 53 g/L acid with traces of Cu, Ni and Co. An ambient extraction at 30 °C yielded acceptable kinetics and loading efficiency for 40% trialkylphosphine oxide with a saturated loading capacity of 51.85 g/L in four contacts at O/A ratio of 1/1 in a multiple contact mode. Iron from the loaded organic was stripped using various strippants such as distilled water, H(2)SO(4) and oxalic acid. Since only 32% of loaded Fe could be stripped with 2 M H(2)SO(4) in five contacts, further stripping was done with 5% oxalic acid which showed a very promising result. It was found that almost 100% of Fe(III) could be stripped out with 5% oxalic acid at O/A of 1/1 in five contacts. |
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Authors:
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Archana Agrawal; S Kumari; K K Sahu |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-19 |
Journal Detail:
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Title: Journal of environmental management Volume: - ISSN: 1095-8630 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401664 Medline TA: J Environ Manage Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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Metal Extraction and Forming Division, National Metallurgical Laboratory, Jamshedpur 831007, India. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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