Nonetheless, flotation experiments demonstrate that employing 2-Cl-9-ODA collector independently yields comparable flotation recoveries of apatite, dolomite, and calcite, posing a …
In contrast to previous studies, which focused solely on apatite or apatite/dolomite flotation using this unconventional reagent, the present study delves into a novel perspective of this collector's function. ... : Calcite association in the tailing; DAT: Dolomite association in in the tailing; and QAT: Quartz association in in the ...
The present invention's dolomite very similar to flotation nature is separated with barite, adopt the sulfuric acid of volume ratio 1: 1: waterglass mixture is as the inhibitor of dolomite mineral, make bar collecting agent with dodecyl sodium sulfate, obtain the barite concentrate of high-quality.The present invention is adopted effectively to ...
This paper presents a comprehensive study on the selective flotation of a multi calcium-bearing minerals ore, focusing on the efficient removal of dolomite and calcite …
Flotation results have demonstrated that PAMS depressed selectively the dolomite flotation to acquire the selective recovery of apatite. Its depression performance relies much on …
In bench scale flotation tests with an artificial siliceous iron ore sample containing dolomite (2.5%), it was found that starch (200 g/t) was required for the effective flotation of the ore at pH 8, which produced concentrate with 55% Fe, …
As shown in Fig. 4, compared with the single collector of NaOL, the flotation recovery of magnesite with the mixed collector NaOL-DP improves 10–40% at the specified pH range, except for the condition of pH 11 declining 5%.The maximum recovery of 85% for magnesite was obtained at pH 10, and the selectivity index of two minerals was 3.78. The …
Phosphorus ore flotation tailing (POFT) mainly consists of dolomite (CaMg(CO3)2) and calcium fluophosphate (Ca5(PO4)3F). Traditional methods of POFT and PG storage could seriously damage the ...
Following 5-min flotation, two collected products (tailing and concentrate) were carefully filtered, dried, and subsequently weighed. ... However, the dolomite flotation was intensely depressed by HPMA under alkaline conditions. After the addition of HPMA, as the slurry pH rose, the dolomite recovery decreased sharply from 56.20% at pH 6.03 to ...
with 1.75% insol. Cationic flotation tests using amine 220, at PH 9.7, the dolomite concentrate (flotation tailing) analysed 2.7% insolubles. MAGNESITE This is important raw material for the manufacture of refractory bricks for use in the metallurgical industry. Large deposits of magnesite are located in the Salem district of Tamil Nadu.
Flotation Tests The micro flotation experiments were conducted using an XFG-type flotation machine (Wuhan Exploration Machinery Co., Ltd., Wuhan, China) with a 50 mL flotation cell and an impeller speed of 1800 rpm, Figure 2 presents the …
with flotation of dolomite, a collector mixture of OA and SPE (styrylphenol polyoxyethylene ether) demonstrated significantly better performances for the fluorite. An optimal mass ratio 4 : 1 ... (concentrate and tailing) were collected, dried, and weighed. The dry weights of the two products were measured and used
Flotation recovery rate was calculated with the particle weight distribution in the concentrate and tailing products by using Eq. (1). At least three parallel experiments were performed, and average was reported. ... Fig. 4 shows the effect of pH on apatite and dolomite flotation recovery with respect to the pulp pH at 7.5 × 10 −5 mol/L NaOL ...
This study investigates the flotation beneficiation of ultrafine magnesite rich in dolomite from desliming, currently reported to the tailings. The paper especially focuses on the impact of the …
The most abundant minerals in the analyzed flotation tailings sample identified by X-ray diffraction analysis were quartz, pyrite, and carbonates (calcite and dolomite), followed by feldspar, clay minerals, and illite, which were less abundant. The results of the semi-quantitative analysis of the data obtained by XRD were as follows: quartz ≈ ...
These alterations were attributed to the flotation of a portion of the dolomite associated with Zn- and Pb-bearing minerals. Following the ... s., top, s., kaya, m., 2020. Recovery of zinc and lead from Yahyali non-sulphide flotation tailing by sequential acidic and sodium hydroxide leaching in the presence of potassium sodium tartrate. ...
Froth flotation is widely used as an effective method for separating apatite from dolomite. However, it is of difficulty to realize the efficient separation of apatite and dolomite using the ...
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 were characterized by …
In this study, sodium dodecyl benzene sulfonate (SDBS), a low-cost and freely soluble reagent under low temperature was used to examine its collecting ability and selectivity in a...
In this study, the gravity and flotation separation techniques are combined to recover cassiterite from a sulfide ore tailing. The Sn grade and recovery of the final concentrate is 31.40% and 88.05%, respectively, thus indicating a highly efficient recovery of cassiterite by using the combined gravity and flotation separation technique.
The flotation separation of magnesite from calcium-containing minerals has always been a difficult subject in minerals processing. This work studied the inhibition effects of carboxymethyl cellulose (CMC), sodium lignosulphonate, polyaspartic acid (PASP) and sodium silicate on flotation behaviors of magnesite, dolomite and calcite, providing guidance for the …
gravity and flotation separation techniques are combined to recover cassiterite from a sulfide ore tailing. The Sn grade and recovery of the final concentrate is 31.40% and 88.05%, respectively ...
The results of micro-flotation tests indicated that MSP had a selective activation effect on the dolomite flotation, which made the flotation behavior of dolomite similar to that of quartz under DDA as a collector. ... Finally, the concentrate and tailing were separately weighed and assayed for MgO, SiO 2 and CaO to determine the magnesite ...
The phosphorite in sedimentary phosphate ore is mostly associated with gangue minerals such as dolomite, and the average grade of P 2 O 5 is lower than 17 % [5]. Flotation is the commonly employed approach to separate fluorapatite and dolomite using fatty acid collectors [6], [7]. However, fluorapatite and dolomite are both calcium-bearing ...
Separating oxidized zinc minerals from flotation tailings is always a challenge. In this study, a flotation tailing from Wulagen zinc mine in China (Zn grade < 1%) was processed using froth flotation with combinations of amines (OPA 10, OPA 1214, OPA 13, DDA) and Na 2 S to study the effects of these amines on the zinc recovery as well as their interactions with other …
1. Introduction. As the primary sources of magnesium, magnesite ores are usually used in various industries in the world [1].Magnesite and dolomite are important mineral commodities, which are widely utilized in agriculture, chemical, construction, environmental, and metallurgical [2], [3].An increase in the demand for magnesite, which is the most important …
Sphalerite (ZnS) is a major mineral containing zinc, accounting for more than 90 % of the raw material for zinc smelting [1].It is often associated with magnesium-rich dolomite (CaMg(CO 3) 2) [2].Dolomite easily enters the concentrate during the sphalerite flotation, leading to excessive magnesium oxide in zinc concentrate [3].Magnesium is continuously enriched during zinc …
Here, ε represents the flotation recovery, M 1 and M 2 represent the weights of froth products and tailing products, respectively. 2.3. Zeta potential measurement. ... WG + HEDP was performed as the mixed depressants in magnesite-dolomite-calcite flotation separation, and 20 mg/L water glass and 15 mg/L HEDP were helpful for the effective ...
Cassiterite recovery from a sulfide ore flotation tailing by combined gravity and flotation separations. ... Dolomite. CaMg(CO 3) 2. 2.40 . Anglesi te. PbSO 4. 0.73 . Chlorite - 2.35 . Quartz ...
An XFG-type flotation machine with an impeller speed of 1700 rpm (Changchun, China) and a Plexiglas cell with an effective volume of 40 mL was employed for flotation testing. 2.0 g of pure magnesite or dolomite was used for single mineral flotation experiments. 1.0 g magnesite and 1.0 g dolomite were well mixed and used for artificial mixed ...
It is found that the dolomite flotation recovery was enhanced and the fluorapatite flotation was depressed by the addition of CaCl 2 at pH 5. For dolomite, ... The floated (concentrate) and unfloated (tailing) products were separately collected, dried, and weighed. The recovery was calculated as the percentage of floated product / (mass of ...
In this present research, phosphate tailings is recycled by Flotation i.e. re-processing. High-purity dolomite with purity as high as 91.17% is seperated, which contains …
Reverse flotation is a relatively effective method to separate apatite from dolomite. Removing dolomite reduces the MgO content, which enhances the P 2 O 5 grade of the recovered minerals (Abouzeid, 2008, Sis and Chander, 2003).However, there is still considerable uncertainty about the best strategy to effectively separate apatite from dolomite in reverse …
In common practice, it is impossible to realize the efficient separation of apatite from dolomite without depressant, because of the similar surface properties of two minerals and the poor selectivity of commonly used collectors (e.g., fatty acid) [5], [6].Recently, considerable investigations focused on the development of novel collectors (e.g., N-hexadecanoylglycine [7], …
Phosphate tailing used in this study was the residue after the flotation of phosphate rocks, which were collected from a phosphorus chemical industry in Hubei Province, China. The phosphate tailing was dried at 105 °C for 2 h to remove moisture, followed by sieving through a 200-mesh sieve for subsequent leaching procedures.
The tailing acquired in the flotation step of the zinc beneficiation was initially characterized to investigate alternatives routes to obtain by-products from the gangues found in this tailing. The gangue of zinc tailing may contain dolomite, hematite, and impurities that are considered toxic elements, e.g. lead and cadmium.
The flotation concentrate and tailing products were collected separately for 4 min. The flowsheet of the flotation experiments is illustrated in Fig. 3. ... The slightly worsened floatability of magnesite in the magnesite-dolomite flotation system may be ascribed to the dissolution of dolomite, ...
The concentrate and tailing products were assayed for MgO and CaO grades via chemical analysis, to calculate the magnesite and dolomite recoveries in the concentrate. ... A study shown that the dissolution rate of dolomite during flotation is much higher than that of magnesite (Chen and Tao, 2004, Filippov et al., 2023, Sun et al., 2022). It is ...
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 …
The Effect of Oleic Acid Emulsification using SPE on Fluorite and Dolomite Flotation ** ... The flotation lasted for 5 min before the products (concentrate and tailing) were collected, dried, and weighed. The dry weights of the two products were measured and used to calculate the recovery. and the reported results were averaged over at least ...