Comparison of Anionic, Cationic and Amphoteric Collectors Used in Pyrite Flotation

Abstract

In this study, flotation tests were conducted with purified pyrite and ore samples. The collectors employed were anionic and cationic type such as potassium ethlyl-amyl xanthate, Tomamine M73 and Resanol Bal. According to the flotation tests, it was found that pyrite floated at low pH and depressed at high pH values with xanthates. On the other hand, in the case of cationic collectors which are Tomamine M73 (alkyl ether amine, an amphoteric surfactant) and Resanol Bal (N-3-tridecyloxy propyl 1-3 diamine, branched acetate) pyrite floated at high pH values. It was shown that amine type collectors could be efficient to selectively float pyrite from chalcopyrite at alkali pH ranges in the case of ore samples.

Various surface-active agents used in flotation technology for the removal of noxious pollutants from wastewater: a critical review

“…On account of cationic collectors, Resanol Bal ( N -3-tridecyloxy propyl 1-3 diamine, branched acetate) pyrite, and Tomamine M73 (alkyl ether amine, an amphoteric collector) drifted at pH with higher values. 150 Adding to this, the application of mixed surfactants in flotation technology to recovery rates is listed in Table 3.…”

The Global Biogeochemical Cycle of Arsenic

“…Some data are publicly available on the compositions of Pb and Zn concentrates, from which we can estimate As fluxes during concentrate processing and atmospheric emissions during smelting. Ratios of As/metal (wt.%) in Pb and Zn concentrates average 0.0026 and 0.0015, respectively (W. Q. Chen et al., 2016; Gashi et al., 2017; Gul et al., 2013). We estimate the average metal contained in each concentrate using typical percentages of each metal in concentrate (60% and 50% for Pb and Zn; W. Q. Chen et al., 2016; Gashi et al., 2017; Gul et al., 2013) and 2020 primary metal production values (4.4 × 10 12 and 1.2 × 10 13 g/yr, respectively; USGS, 2022), yielding estimates of the Pb and Zn in each concentrate of 7.33 × 10 12 and 2.40 × 10 13 g/yr, respectively.…”

“…Ratios of As/metal (wt.%) in Pb and Zn concentrates average 0.0026 and 0.0015, respectively (W. Q. Chen et al., 2016; Gashi et al., 2017; Gul et al., 2013). We estimate the average metal contained in each concentrate using typical percentages of each metal in concentrate (60% and 50% for Pb and Zn; W. Q. Chen et al., 2016; Gashi et al., 2017; Gul et al., 2013) and 2020 primary metal production values (4.4 × 10 12 and 1.2 × 10 13 g/yr, respectively; USGS, 2022), yielding estimates of the Pb and Zn in each concentrate of 7.33 × 10 12 and 2.40 × 10 13 g/yr, respectively. With these values, we calculate combined As mobilization of ∼55 × 10 9 g/yr from these metals.…”

“…Global Pb and Zn extracted in ores in 2020 are estimated as 4.4 × 10 12 and 1.2 × 10 13 g/yr, respectively (USGS, 2022). Sparse available data suggest average As/metal (wt.%) ratios in these ores of 0.037 and 0.011, respectively (Gul et al., 2013; Mikulski et al., 2020). From these, we estimate combined As mobilization in Pb and Zn ores of 292 × 10 9 g/yr.…”

Flotação seletiva de minério fosfático sílico-carbonatado com coletores anfotéricos

“…O desenvolvimento de reagentes alternativos tem sido objeto de pesquisas com o intuito de potencializar ainda mais a produção de concentrado fosfático e diminuir a dependência agrícola do país. Nessa perspectiva, os coletores anfotéricos ou zwitteriônicos apresentam-se como uma alternativa promissora e têm sido estudados por pesquisadores da área [9][10][11].…”