Study on Spectrophotometric Determination of Trace Copper after Flotation Separation using Sodium Chloride-Ammonium Thiocyanate-Dodecyl Dimethyl Benzyl Ammonium Chloride System

DOI

10.2991/icaees-15.2015.110How to use a DOI?

Keywords

copper; flotation separation; ammonium thiocyanate; dodecyl dimethyl benzyl ammonium chloride; environmental water samples

Abstract

The paper presents a novel method for the spectrophotometric determination of trace Cu2+ after flotation separation using sodium chloride-ammonium thiocyanate-dodecyl dimethyl benzyl ammonium chloride system.The effects of the dosages of NH4SCN and dodecyl dimethyl benzyl ammonium chloride (DDBAC),various salts and acidity etc. on the flotation yield of Cu2+ have been investigated. The possible flotation separation mechanism of Cu2+ was discussed.The results showed that by controlling pH4.0,in NaCl-NH4SCN-DDBAC system,the water-insoluble ternary association complex of (DDBAC)2[Cu(SCN)4] which produced by Cu2+ and SCN-,DDBAC cation (DDBAC+) floated above water phase and liquid-solid phases were formed with clear interface,while Mn2+,Ni2+,Fe2+ and Al3+ could not be floated,so Cu2+ was floated quantitatively. Thereby, the quantitative separation of Cu2+ from the above metal ions could be achieved. A new spectrophotometric method of determination of trace copper by flotation separation was established.The proposed method has been successfully applied to the determination of Cu2+ in various environmental water samples with satisfactory results.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Changqing Tu
AU  - Xinrong Wen
PY  - 2015/07
DA  - 2015/07
TI  - Study on Spectrophotometric Determination of Trace Copper after Flotation Separation using Sodium Chloride-Ammonium Thiocyanate-Dodecyl Dimethyl Benzyl Ammonium Chloride System
BT  - Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015
PB  - Atlantis Press
SP  - 598
EP  - 602
SN  - 2352-5401
UR  - https://doi.org/10.2991/icaees-15.2015.110
DO  - 10.2991/icaees-15.2015.110
ID  - Tu2015/07
ER  -