Issue 12, 2017, Issue in Progress

Phosphoric acid recovery from concentrated aqueous feeds by a mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP): extraction data and modelling

Abstract

This paper reports experimental data about the extraction of phosphoric acid from concentrated aqueous feeds (3 to 14 M H3PO4) by the mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP) at 25 °C: distribution ratios of H3PO4 and water, and change of phase volume ratio during extraction. Then, a simple model based on the extraction isotherms of H3PO4 and water as well as on the mass balance of these two compounds is developed in the case of the mixture of 90% wt DIPE and 10% wt TBP that corresponds to the solvent used at the industrial scale for the production of purified phosphoric acid.

Graphical abstract: Phosphoric acid recovery from concentrated aqueous feeds by a mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP): extraction data and modelling

Article information

Article type
Paper
Submitted
18 Oct 2016
Accepted
09 Jan 2017
First published
20 Jan 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 6922-6930

Phosphoric acid recovery from concentrated aqueous feeds by a mixture of di-isopropyl ether (DiPE) and tri-n-butylphosphate (TBP): extraction data and modelling

M. C. Assuncao, G. Cote, M. Andre, H. Halleux and A. Chagnes, RSC Adv., 2017, 7, 6922 DOI: 10.1039/C6RA25440C

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