2015110 · Therefore, a novel phosphate flotation technology is proposed and tested. In this novel technology, apatite is separated from dolomite and quartz using reactive oily bubble with sodium silicate as depressant, followed by separation of dolomite from quartz with conventional air bubble flotation.
view more199851 · Among the impurities present in phosphate ore, dolomite is the most difficult to remove. This is because dolomite and phosphate have similar chemical compositions and because the dissolved species of dolomite is adsorbed on the surface of the phosphate mineral. A new amphoteric surfactant was found to be a suitable collector for the …
view more202425 · Abstract In pulp environment, due to the migration and transformation of dissolved calcium ions, the surface properties of magnesite and dolomite tend to become similar, which in turn leads to difficulties in their flotation separation. In this paper, the chelating reagent EDTA is introduced to eliminate the adverse influence of calcium …
view more2023223 · The separation of fine mineral particles, especially using environmentally friendly approaches, is one of the main problems in the processing of low-grade ores and the re-processing of mining tailings. This work assesses the potential of biosurfactants as collectors in the flotation of ultrafine (smaller than 20 μm) particles of hematite and …
view more202165 · In the present work, the flotation separation of magnesite from dolomite was enhanced using sodium dihydrogen phosphate (SDP) as an activator for dolo…
view more202131 · Micro-flotation results indicated that the addition of P (AA-AMPS) could achieve the efficient separation of apatite from dolomite at pH 8.5 by selectively depressing the dolomite flotation, in which more than 87.4% of apatite was recovered whereas the dolomite recovery was less than 14.7%.
view more2023105 · The flotation separation of dolomite and fluorapatite is difficult due to the similar surface properties. In this study, carboxymethyl cellulose (CMC)…
view more2022813 · mite, but the de-pressant effect on dolomite is stronger at the same dosage. Mechanism analysis shows that the adsorptive capacity of calcium lignosulfonate on dolomite is higher than that of apatite, which is due to the. strong reaction between calcium lignosulfonate and the Ca sites on dolomite. In addi-tion, there is a hydrogen bond …
view moreOver the years, several depressants have been selected as selective flotation depressants for dolomite. Wang et al. (2008) found that Ca-chelator BAPTA could depress the flotation of dolomite due to adsorption on the dolomite surface. β-naphthyl sulfonate formaldehyde condensate also showed a good selective inhibition on dolomite (Yu, 2016).
view more202415 · In this study, the effects of SO 42- and PO 43- on the flotation performance and surface adsorption of dolomite were deeply investigated by combining experiments and MDS calculation. The research can provide a guidance for the influence of dissolved ions in wastewater on the flotation of phosphate ore.
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