Extraction of lead, copper, and bismuth with mixtures of N,N-di(1-methylheptyl) acetamide and neutral organophosphorus extractants

[Display omitted] •Synergistic or antagonistic extraction of Pb, Cu, and Bi was studied.•N,N-di(1-methylheptyl) acetamide and organophosphorus extractants mixtures were used.•Extraction effects were investigated for the separation of Pb/Bi and Cu/Bi.•The synergistic extraction of Pb was studied in d...

Full description

Saved in:
Bibliographic Details
Published in:Separation and purification technology 2013, Vol.118, p.492-496
Main Authors: Liu, Dan, Cao, Kaiyu, Jia, Qiong
Format: Article
Language:English
Subjects:
Bismuth
Copper
Extraction
Lead
N,N-di(1-methylheptyl) acetamide
Neutral organophosphorus extractants
phosphine
phosphorous acid
temperature
thermodynamics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •Synergistic or antagonistic extraction of Pb, Cu, and Bi was studied.•N,N-di(1-methylheptyl) acetamide and organophosphorus extractants mixtures were used.•Extraction effects were investigated for the separation of Pb/Bi and Cu/Bi.•The synergistic extraction of Pb was studied in detail. In the present work, the extraction of lead, copper, and bismuth with N,N-di(1-methylheptyl) acetamide (N503) and its mixtures with neutral organophosphorus extractants, tri-butyl-phosphate (TBP), 2-ethylhexyl phosphonic acid di-2-ethyl ester (EHDEHP), and aliphatic trialkyl phosphine oxide (Cyanex923), was studied. Whether the mixtures had synergistic or antagonistic effect were investigated and considered for the separation of bismuth, lead, and copper. The synergistic extraction stoichiometries were studied in detail by the methods of slope and constant mole, with the extraction of lead with N503+DEHEHP as a representative. Effects of temperature on the extraction were also determined to investigate the thermodynamic parameters.
ISSN:1383-5866
1873-3794
DOI:10.1016/j.seppur.2013.07.033