Flotation is the most known beneficiation method for separation of complex and refractory iron ores. As a typical iron-containing silicates, it difficult to separate chlorite from specularite, because similar surface physicochemical properties. In this study, selective depression effect sodium hexametaphosphate (SHMP) was conducted via cationic micro-flotation. The adsorption mechanism between ...

The mid-low grade of phosphate ore, rich by the silicate and carbonate gangue minerals needs a special treatment using flotation process. Where collectors play pivotal role. This study was conducted to enrich an untreated ore (without washing, desliming, hydrocycling, etc.), with eco-friendly economic collector based on soybean oil. Different analytical techniques such as UV-Visible, ATR-FTIR s...

The aim of this project was to remove chloride ions from Eshidiya industrial waste water to be reused in the flotation cells. The industrial wastewater was treated by passing it through ion exchange column. During the experiments, two types of resins were used: anion resin and mixed resin (cation / anion).The selectivity coefficient and the separation factor were calculated in those experiments...

In the reverse anionic flotation of phosphate ores using phosphoric acid, it is often suggested that a selective surface passivation minerals by calcium occurs. Several species have been proposed in literature for this passivation. study, in-situ Raman spectroscopy was used to monitor as function time interaction acid with calcite and fluorapatite at fixed pH 4.5 or concentrations order identif...

A three stage flotation scheme was employed to beneficiate a low grade. high dolomitic phosphate ore from Florida. The reagent scheme used. developed on the basis of our previous fundamental studies. consisted of oleic acid added as collector. mineral oil and ethoxylated sulfonate as co-collectors and 1. hydroxy ethylidene 1.1diphosphonic acid (Dequest 2010) as francolite depressant. The three ...

Porphyry-type deposits are the major sources of copper and molybdenum, flotation has been adopted to recover them separately. The conventional reagents used for depressing minerals, such as NaHS, Na2S, Nokes reagent, have potential emit toxic H2S gas when pulp pH was not properly controlled. Thus, in this study applicability microencapsulation (ME) using ferrous phosphate ions an alternative pr...