AN APPLIED COMPARISON BETWEEN CONVENTIONAL PRE-DISPERSED SOLVENT EXTRACTION (PDSE) CONTACTORS AND NEW DISSOLVED NITROGEN PDSE (DNPDSE) ONES

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TAVAKOLI MOHAMMADI M.R.; KOLEINI S.M.J.; ABDOLLAHY M.

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Paper Information

Journal: JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES) Year:2015 | Volume:6 | Issue:2 Page(s): 159-168

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Title

AN APPLIED COMPARISON BETWEEN CONVENTIONAL PRE-DISPERSED SOLVENT EXTRACTION (PDSE) CONTACTORS AND NEW DISSOLVED NITROGEN PDSE (DNPDSE) ONES

Author(s)

TAVAKOLI MOHAMMADI M.R. | KOLEINI S.M.J. | ABDOLLAHY M. | Issue Writer Certificate

Keywords

DISSOLVED NITROGEN PRE-DISPERSED SOLVENT EXTRACTION (DNPDSE) CONTRACTORQ2

PRE-DISPERSED SOLVENT EXTRACTION (PDSE) CONTRACTORQ2

COLLOIDAL APHRONS (CAS)Q2

METAL EXTRACTIONQ2

PERFORMANCE STUDYQ2

Abstract

Efforts to increase the mass transfer coefficient, enhance the contact area, and decrease the power input of contractors have given risen to the development of the pre-dispersed solvent extraction (PDSE) contactor and the devise of the new dissolved nitrogen PDSE (DNPDSE) contactors. The studies conducted after the design of the new contactor to determine the working conditions for its suitable performance (2.5-3.5 bar pressure, 0.1 L/min sparger flow rate, and 1.5 L of the aqueous phase) showed that for all the evaluated conditions (i.e. the pressure, polyaphron type, and dilution percentage), the recovery in the DNPDSE contactor was higher than that in the PDSE one. In addition, pictures of the performance modes of the two contactor indicated the presence of the organic phase in the form of colloidal gas aphrons (CGAs) in the DNPDSE contactor and of polyaphron aggregations in the PDSE one. This is a good reason for the increased copper recovery in the DNPDSE contactor. The best recovery for the extraction process in the DNPDSE contactor was achieved using the anionic polyaphron of sodium dodecylbenzene sulphonate (NaDBS) with five-fold dilution at 3.5 bar.

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APA: Copy

TAVAKOLI MOHAMMADI, M.R., KOLEINI, S.M.J., & ABDOLLAHY, M.. (2015). AN APPLIED COMPARISON BETWEEN CONVENTIONAL PRE-DISPERSED SOLVENT EXTRACTION (PDSE) CONTACTORS AND NEW DISSOLVED NITROGEN PDSE (DNPDSE) ONES. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), 6(2), 159-168. SID. https://sid.ir/paper/256275/en

Vancouver: Copy

TAVAKOLI MOHAMMADI M.R., KOLEINI S.M.J., ABDOLLAHY M.. AN APPLIED COMPARISON BETWEEN CONVENTIONAL PRE-DISPERSED SOLVENT EXTRACTION (PDSE) CONTACTORS AND NEW DISSOLVED NITROGEN PDSE (DNPDSE) ONES. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES)[Internet]. 2015;6(2):159-168. Available from: https://sid.ir/paper/256275/en

IEEE: Copy

M.R. TAVAKOLI MOHAMMADI, S.M.J. KOLEINI, and M. ABDOLLAHY, “AN APPLIED COMPARISON BETWEEN CONVENTIONAL PRE-DISPERSED SOLVENT EXTRACTION (PDSE) CONTACTORS AND NEW DISSOLVED NITROGEN PDSE (DNPDSE) ONES,” JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), vol. 6, no. 2, pp. 159–168, 2015, [Online]. Available: https://sid.ir/paper/256275/en

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