Flotation Preconcentration of Cobalt and Nickel by Lead(II) Hexamethylenedithiocarbamate

Pavlovska, Gorica and Čundeva, Katarina and Stafilov, Trajche (2000) Flotation Preconcentration of Cobalt and Nickel by Lead(II) Hexamethylenedithiocarbamate. Separation Science and Technology, 35 (16). pp. 2663-2677. ISSN https://doi.org/10.1081/SS-100102362

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A flotation method for simultaneous separation of cobalt and nickel traces from fresh water is proposed. Lead(II) hexamethylenedithiocarbamate, Pb(HMDTC)2, was used as a new collector for the precipitate flotation preconcentration. It was obtained during the reaction between examethyleneammonium–hexamethylenedithiocarbamate, HMA–HMDTC, and lead(II) ions. Mass of lead, m(Pb), amount of hexamethylenedithiocarbamate, n(HMDTC−), pH of the system, induction time, type of surfactants, which are all important parameters for the successful flotation, were studied and optimized. After flotation preconcentration, electrothermal atomic absorption spectrometry (ETAAS) was applied for cobalt and nickel determination. The results obtained by ETAAS were compared with the results obtained by inductively coupled plasma–atomic emission spectrometry (ICP–AES). The detection limit of the proposed method is 0.025e μg/L for cobalt and 0.0157 μg/L for nickel.

Item Type: Article
Subjects: Scientific Fields (Frascati) > Engineering and Technology > Chemical engineering
Scientific Fields (Frascati) > Natural sciences > Chemical sciences
Scientific Fields (Frascati) > Engineering and Technology > Environmental engineering
Scientific Fields (Frascati) > Engineering and Technology > Other engineering and technologies
Divisions: Faculty of Technology and Technical Sciences
Depositing User: Prof. d-r. Gorica Pavlovska
Date Deposited: 03 Apr 2023 12:33
Last Modified: 03 Apr 2023 12:33
URI: https://eprints.uklo.edu.mk/id/eprint/7922

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