The flotation performance of dolomite and apatite in the phosphate (H 3 PO 4) system treated with sodium oleate (NaOl) and GJBW, respectively, was studied and compared. …
Apatite flotation presents considerable challenges related to selectivity, especially when one takes into consideration the rather loose structure of this family of minerals and the several ...
Process water containing large amounts of calcium, magnesium, fluoride and phosphate (phosphorus) directly influences the performance of apatite flotation (recovery and grade). This study quantified and analyzed the effect of …
In this study, a selective depressant sodium alginate (SA) was used to improve the flotation performance of separating apatite from dolomite. The flotation results show that SA can completely depress dolomite with a slight effect on apatite flotation in pH 8–11. The contact angle tests and adsorption tests indicate that …
Abstract. To elucidate how phosphoric acid (H 3 PO 4) as a depressant achieves selective separation of apatite and dolomite, the flotation response of these minerals was investigated using both single and mixed mineral flotation. Microflotation results demonstrated that H 3 PO 4 exhibits a selective depressive effect on apatite.
Semantic Scholar extracted view of "The application of a novel amine collector, 1- (dodecylamino)-2-propanol, in the reverse flotation separation of apatite and quartz" by Weidi Zhang et al.
Most apatite concentrates, essential for the fertilizer industry, are produced using froth flotation, where collectors play a pivotal role. Although vegetable oil-derived surfactants have been used for decades in flotation processes, raw materials which do not compete …
An alternative to this is the use of efficient wastewater treatment. Dissolved air flotation (DAF) is a separation process based on the generation of microbubbles ( Santana et al., 2012) and can be used as an alternative for the wastewater treatment for water reuse in apatite flotation.
The effective the flotation volume performance of each column considering was a 100 rougher L, 46 /cleaner L, and 13 circuit L, respectively. for apatite flotation The main with objective the following of this study two di was erent to circuits: compare Circuit the flotation 1 (rougher—4" performance diameter considering column; a cleaner ...
Micaceous minerals are commonly found in phosphate ores, representing a challenge to selectively recover apatite. Aiming at identifying new flotation reagents for the separation of apatite from micaceous minerals, this study investigates the floatability of apatite, biotite and phlogopite in the presence of patauá oil-based collector.
The current resurgence of interest in flotation separation science and technology is continuing to design, fabricate and screen new types of amphiphiles to illustrate their potential as ...
The flotation separation of apatite from calcite is gordian due to the similar surface properties and calcium active sites, which make a poor selectivity in traditional fatty acid system.
Abstract. To elucidate how phosphoric acid (H3 PO 4) as a depressant achieves selective separation of apatite and dolomite, the flotation response of these minerals was investigated using both single and mixed mineral flotation. Microflotation results demonstrated that H3 PO 4 exhibits a selective depressive effect on apatite.
Abstract. Flotation separation of apatite and calcite has always been difficult because of their similar physiochemical properties. To realize the flotation separation of the two minerals, many inorganic depressants are usually used, which contaminate the environment. In this study, the behavior of the polymer molecule gum arabic (GA) as a ...
The single and mixed binary mineral flotation experimental results prove the excellent selectivity of BHA in the apatite/calcite flotation separation. Zeta potential measurement …
Metal ions has been employed to improve mineral flotation recovery, but previous studies mainly focused on the influence of surface properties of minerals, while lacking of the investigation of dispersion and ing behavior of flotation agents. In this work, we investigated the enhancement mechanism of muscovite flotation by adding Pb …
Iron concentration tailings contain many valuable minerals, including apatite, which is not currently being recovered despite its use to make fertilizers and chemicals. This article proposes a flotation circuit to recover apatite from tailings generated by mining in Chile, based on laboratory tests and using the "Split Factor" method. The iron tailings …
The synergistic effects between sodium dodecyl sulfonate (SDS) and a mixed fatty acids collector for apatite flotation were investigated. SDS benefitted the apatite flotation at pH 9.5. The TOC measurements showed that the addition of SDS improved the surfactants adsorption at the apatite surface. The colloidal size …
However, the flotation response of monazite was very similar to its associated gangue minerals like apatite, ilmenite, quartz, rutile, and zircon when octanohydroxamic acid was used [74].
Up to date, no study has investigated the potential of andiroba oil as a collector in froth flotation. The present work presents the characterization of andiroba oil, its physicochemical properties and adsorption behavior, and investigates the collector performance in the recovery of apatite, calcite, and dolomite. 2.
The flotation performance of dolomite and apatite in the phosphate (H 3 PO 4) system treated with sodium oleate (NaOl) and GJBW, respectively, was studied and compared. Microheat tests, surface characterization, and flotation solution chemistry calculations were used to evaluate the adsorption mechanism of GJBW onto dolomite.
In practice apatite requires a lower oleate concentration than does calcite for a given flotation recovery [I 7]. CONCLUSIONS The adsorption isotherms for oleate on calcite and apatite indicate that the composition and surface structure of the mineral influence the process of adsorption.
Conventional flotation devices can be inefficient to selectively recovery fine particles. The effect of process variables on the performance of dissolved air flotation of apatite was studied. The bubbles size distribution of the dissolved air system was measured, with values less than 100 μm. The satisfactory performance requirements for …
Iron concentration tailings contain many valuable minerals, including apatite, which is not currently being recovered despite its use to make fertilizers and chemicals. This article …
The single mineral flotation test shows that it is possible to efficiently separate apatite from magnetite, quartz, and biotite by mixing fatty acids with surfactants.
However, the separation performance of the flotation was lower at pH 7 regardless of the collector concentration. Thus, more collector molecules are adsorbed on the quartz surface than the apatite surface at pH 3 and 5 × 10 −5 M of collector, resulting in separation of quartz and apatite.
In this work, Andiroba oil ( Carapas guianensi) was evaluated regarding its physicochemical characteristics (fatty profile, acidity, saponification, and iodine indices) and the performance of its fatty acid salts as a selective apatite collector in the flotation from calcium and magnesium carbonate gangue minerals, commonly found in phosphate ores.
This study aims to endeavor the role of milling environment on the output particle properties and on the batch flotation behavior of a silicaceous carbonaceous sedimentary apatite ore.
There are many associated minerals in apatite ore, especially dolomite [5]. The physical and chemical prop-erties of apatite and dolomite are similar, whi h is not condu-cive to the flotation separation of the two minerals [6–8]. Flotation is a widely used method of mineral enrichment, the separation of target minerals from gangue, and
The concentration of phosphate rock is strongly affected by the presence of ionic species dissolved in flotation pulp due to the interaction of ions with the surface of apatite particle. Process water containing large amounts of calcium, magnesium, fluoride and phosphate (phosphorus) directly influences the performance of apatite flotation ...
Conventional flotation devices can be inefficient to selectively recovery fine particles. The effect of process variables on the performance of dissolved air flotation of apatite was …
To address the flotation separation problem between apatite and dolomite, DMNS (disodium methylenebis naphthalene sulfonate) was selected as a depressant in this research. Micro-flotation results showed NaOl exhibited good floatability for dolomite and apatite, with no significant difference in the floatability between these two minerals.
The main mechanism of flotation is bubble-particle interaction, which is strongly dependent on the particle size and the bubble size distribution (BSD). It is known that air bubbles …
Flotation separation of apatite from calcite is difficult due to their same activate calcium atoms on the surface. To address this issue, amino trimethylene phosphonic acid (ATMP) was introduced to separate apatite and calcite in this research. The microflotation results showed that NaOl had an excellent collecting ability to apatite …
Systematic microflotation tests on purified samples of apatite and hematite provided the basis for understanding the mechanism of the flotation process. A key feature of the flotation was the use of sodium silicate as a selective depressant for iron oxides.
The main mechanism of flotation is bubble-particle interaction, which is strongly dependent on the particle size and the bubble size distribution (BSD). It is known that air bubbles are responsible...
