Electrochemical effects in flotation of a Turkish complex sulphide ore

Recycling of process water in sulphide flotation: Effect of calcium and sulphate ions on flotation of galena

“…The usual procedure in the flotation stage of complex sulphide ore is floating Cu and Pb minerals in the first stage while Zn mineral is floated in the second stage (Liu and Zhang, 2000;Woodcock et al, 2007). Pb mineral flotation is usually affected by a number of factors which includes components and species present in the pulp (Chen et al, 2009;Das et al, 1997;Grano et al, 1990;Göktepe and Williams, 1995;Houot and Duhamet, 1992;Peng and Grano, in press;Rao and Finch, 1989), grinding method (Eric Forssberg et al, 1993) electrochemical effects, and control of the grinding environment especially the metal oxidation species produced on galena and oxidation-reduction state which in turn influence the potential range of subsequent flotation (Chander, 2003;Forssberg et al, 1988;Guy and Trahar, 1984;Martin et al, 1991;Peng et al, 2003a,b;Ralston, 1991). Calcium and sulphate ions are two very common components in the process water from flotation of sulphide minerals.…”

Challenges and opportunities in the recovery/rejection of trace elements in copper flotation-a review

“…Extensive discussion of these parameters may be found in the literature (Leaver and Woolf, 1931, 1932, 1934aMarsden and House, 2006;Lin and Adamian, 1993;Finch and Smith, 1979;Fleming, 1990;Broekman et al, 1987;Nagaraj et al, 1989Nagaraj et al, , 1992Goktepe and Williams, 1995;Basilio et al, 1992;Johnson and Skinner, 2001;Woods et al, 1994;Leppinen et al, 1991;Heyes and Trahar, 1977;Hintikka and Leppinen, 1995;Kuopanportti et al, 1997;Teague et al, 1999). Also, flotation behaviour of native and electrum gold particles depends on the nature of their final shape after grinding and regrinding.…”

A review of copper–arsenic mineral removal from copper concentrates

“…This response was thought to be due to the presence of copper in the matrix (Lager and Forssberg, 1989). Goktepe and Williams (1995) determined that the highest copper recoveries were obtained in the order: potassium amyl xanthate > thionocarbamate > dithiophosphate. The dithiophosphate however was more selective, returning the highest copper concentrate grade.…”

“…A lead depressant was used in a plant in Peru that was based on a dichromate complex with carboxy methylcellulose (CMC) and sodium phosphate (Bulatovic et al, 2001). Sodium hydrosulphide (NaHS) additions depressed both copper and zinc in an unnamed Turkish ore (Goktepe and Williams, 1995). In a report on the flotation of antimonial minerals, the flotation response of stibnite (Sb 2 S 3 ) and boulangerite (Pb 5 Sb 4 S 11 ) showed a strong dependence on pH.…”