Study on Spectrophotometric Determination of Trace Copper after Flotation Separation using Sodium Chloride-Ammonium Thiocyanate-Dodecyl Dimethyl Benzyl Ammonium Chloride System
- 10.2991/icaees-15.2015.110How to use a DOI?
- copper; flotation separation; ammonium thiocyanate; dodecyl dimethyl benzyl ammonium chloride; environmental water samples
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.
- © 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/).
Cite this article
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 -