The synthesis and research of a novel thionocarbamate N,N′-diethoxycarbonyl-O,O′-(1,4-butylidene) dithionocarbamate which contains two ester and two thioamide groups are reported. This compound was characterized by elemental analysis, UV spectrum, infrared spectrum, mass spectrum, and 1H NMR and 13C NMR spectroscopy. Additionally, the metal ion–collector interaction in organic solution was put into practice. The results of UV spectroscopic analysis showed that this dithionocarbamate with a new structure exhibited a stronger complex ability with Cu2+ than with Ni2+ or Fe3+. Furthermore, infrared spectroscopic analysis implicated that this dithionocarbamate binds to Cu2+ through both the C=O and C=S groups. Bench-scale flotation tests were also carried out, verifying that it has a higher copper flotation recovery and better selectivity to sulfide ores containing Cu compared with universal collectors.
Research on Chemical Intermediates – Springer Journals
Published: Nov 1, 2011
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