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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6958

Title: SEPARATION OF NIOBIUM AND TANTALUM BY EXTRACTION CHROMATOGRAPHY WITH BIS(2-ETHYLHEXYL)PHOSPHORIC ACID
Authors: VIN, YY
KHOPKAR, SM
Keywords: di(2-ethylhexyl) phosphoric-acid
solvent-extraction
Issue Date: 1991
Publisher: ELSEVIER SCIENCE BV
Citation: TALANTA, 38(9), 971-975
Abstract: A novel method is developed for the reversed-phase extractive chromatographic separation of niobium and tantalum with bis(2-ethylhexyl)phosphoric acid. Niobium is extracted from 1-10M hydrochloric acid and can be stripped with 3M sulphuric acid containing 2% hydrogen peroxide. Tantalum is extracted from 0.1-2M hydrochloric acid and can be stripped with 0.1M hydrochloric acid containing 2M tartaric acid. It is possible to separate niobium and tantalum, in different ratios, from multicomponent mixtures.
URI: http://dx.doi.org/10.1016/0039-9140(91)80311-M
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6958
http://hdl.handle.net/10054/6958
ISSN: 0039-9140
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