Selective co-adsorption of a novel mixed collector onto …
Single and artificially mixed minerals (mixture of magnesite and dolomite in mass ratios of 1:1 and 9:1, respectively) micro-flotation tests were performed in a 30 mL micro-flotation cell of a laboratory XFG self-aeration flotation machine (Jilin Exploration Machinery Plant, China) and the micro-flotation test is shown in Fig. 2.Micro-flotation …
Flotation Separation of Magnesite from Dolomite Using …
The flotation tests show that NaOL has strong collecting capacity in magnesite and dolomite flotation, so it is difficult to separate two minerals via flotation without inhibitors.
MgO Dolomite Flotation
A selective dolomite flotation process has recently been developed at the University of Florida whereby a two stage conditioning technique is utilized to remove …
Flotation separation of quartz and dolomite from …
Flotation is the most widely used method to effectively separate dolomite and quartz from collophane. Conventional amine collectors can't effectively remove silicate minerals due to their poor ...
CO2 bubble formation on dolomite surface and its influence …
The influence of CO2 bubbles on flotation behavior and surface wettability of dolomite was evaluated through micro-flotation test, contact angle measurement and molecular dynamics ...
Effect of SO42- and PO43- on flotation and surface …
The single mineral flotation test was performed in the XFGCII flotation machine (Jilin Exploration Machinery Factory, China), and the impeller speed of the flotation machine was 1992 r/min. Firstly, 2.0 g of dolomite sample and 40 mL of different concentrations of SO 4 2-or PO 4 3-solutions were added in the cell.
Evaluation of Dolomite Separation Techniques
A- Flotation Testing: Laboratory comparison of five phosphate-dolomite-silica flotation separation processes, developed by various investigators, was completed using a 26% P 2 O 5 / 2+ % MgO Florida pebble phosphate supplied by IMCF as the test sample. The current test results were compared with the previous investigators' reported results ...
Flotation separation of dolomite and brucite via …
2.2 Microflotation test The flotation test of brucite and dolomite was carried out according to the process shown in Figure 3. Among them, the flotation recovery rate of single minerals was calculated based on mass percentage, while the flotation recovery rate of artificial mixed ore was calculated based on product yield and CaO content [21].
Selective Flotation Behavior of Dolomite from …
In the reverse flotation of fluorapatite and dolomite, high-efficiency depressors of fluorapatite have received considerable attention. In this paper, the depression mechanism of hydroxy ethylene …
CO2 bubble formation on dolomite surface and its …
dolomite surface were detected by AFM in a pH 5 solution. Meanwhile, the deionized aqueous solution was serves as a reference. The influence of CO 2 bubbles on flotation behavior and surface wettability of dolomite was clarified by micro-flotation test, contact angle measurement, and molecular dynamics simulation (MDS). 2. Materials and …
Effect of depressants on flotation separation of magnesite …
The flotation results indicated that, when sodium oleate (NaOl) was used as the collector, HEDP displayed an outstanding depression effect on the dolomite flotation, whereas it had only a slight ...
Effect of pulp temperature on separation of magnesite …
pH on the flotation recoveries of single minerals are shown in Fig. 3. Fig. 3. Effect of pulp pH on flotation recoveries of single minerals It can be seen from Fig. 3 that the flotation recoveries of single minerals increase with the increase of pulp pH value and the recovery of magnesite is higher than that of dolomite under the same flotation
Minerals | Free Full-Text | Flotation Behavior and Interface
A reverse flotation test was carried out for the artificial ore of apatite and dolomite, and the influence of the sodium oleate dosage on the flotation separation performance of apatite dolomite was discussed. ... R. Effect and mechanism of phosphoric acid in the apatite/dolomite flotation system. Int. J. Miner. Process. 2017, 167, 95–102 ...
Reverse flotation separation of calcite/dolomite from …
The flotation results indicated that, when sodium oleate (NaOl) was used as the collector, HEDP displayed an outstanding depression effect on the dolomite flotation, whereas it had only a slight ...
Insight into the inhibition mechanism of carboxymethyl …
The flotation separation of dolomite and fluorapatite is difficult due to the similar surface properties. In this study, carboxymethyl cellulose (CMC) was introduced as a depressant for flotation of dolomite and fluorapatite, the adsorption mechanism of CMC on the mineral surfaces was clarified by DFT calculations, XPS analysis, zeta potential and …
Flotation separation of magnesite from dolomite with …
In the practical flotation test of the ore, the concentration of MgO in the concentrate, compared with the original process with CMC alone, was reduced from 9.62% to lesser than 5.92%, with the ...
Simultaneous separation of quartz and dolomite from …
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. ... In conditions similar to those in the flotation test, the contact-angle measurement was conducted and the results are listed …
Study on regulators of purifying magnesite ore by cationic …
Flotation test of a single mineral under an ether amine system. Under the ether amine system, the flotation behaviour of magnesite, dolomite, and quartz single minerals was studied.
Exploration of disodium methylenebis naphthalene …
The pH value was recorded prior to flotation. In the single sample flotation test, the floated and sink samples were collected respectively to determine the mineral flotation recovery by their mass weight. ... The dolomite flotation recovery was at ∼60 % across the studied pH. Fig. 3 (b) reveals the floatability of apatite and dolomite at pH ...
A Review of Flotation Separation of Mg Carbonates (Dolomite …
The flotation results demonstrate that Na2ATP exhibits a more intense depression on the flotation of dolomite than that of magnesite and can separate effectively magnesite from dolomite, which ...
LPF Process Metallurgical Testing
Ancillary open-cycle flotation tests to determine the applicability of pre-flotation of calcite/dolomite from the oxide/transition ore as well as the sulfide ore to reduce the overall acid consumption in the leaching step. 9. Additional open-cycle flotation tests to determine the technical feasibility of pre-flotation of talc and troublesome ...
The selective flotation separation of apatite from dolomite …
The flotation experimental results (Fig. 6 a) demonstrates that, compared to oleic acid, the reduced collecting abilities of 2-Cl-9-ODA for dolomite and calcite particles grant it better selectivity in the flotation separation of apatite from dolomite and calcite. The following sections provide a detailed explanation of the mechanism behind the ...
Enhancing selective calcite and dolomite flotation in the …
Reflecting on the flotation test in Fig. 13, Atrac 50L successfully recovered a carbonate concentrate assaying 78.23% carbonate (calcite and dolomite), but it also …
Mechanism of calcium lignosulfonate in apatite and …
Fig. 3. Effect of NaOl dosage on the flotation of dolomite and apatite (pH value = 9). When the dosage of NaOl is 1 × 10−4 mol·L−1, the effect of pH value on the flotation of …
Effect of Pulp Temperature on Separation of Magnesite from Dolomite …
The influence of pulp temperature on the floatability of magnesite and dolomite were studied by flotation test. Inductive Coupled Plasma Emission Spectrometer (ICP) was used to measure the dissolved metal ion content in the pulp by minerals in solution. X-ray photoelectron spectroscopy (XPS) was used to measure the presence …
Selective flotation separation of magnesite from dolomite …
In this study, HEDP was selected to use together with water glass, the objective was to study the magnesite-dolomite-calcite flotation separation using WG + HEDP as depressants, and the inhibition performance of the mixed depressants was elucidated by micro-flotation test, zeta potential test, contact angle test, XPS test and …
Enhanced Flotation of Dolomite Particles by Grinding with …
The results of the dolomite flotation test (Figure 12 and Figure 13) demonstrated that grinding with short cylinder grinding media had a positive impact on …
Influence of Sodium Phosphate Salts with Different Chain …
This paper analyzes the influence of sodium phosphate salts with different chain lengths as depressants on the flotation behavior of magnesite and dolomite through single mineral flotation test, contact angle test, and theoretical analysis. Flotation tests show that depressants should be added for the flotation separation of magnesite and …
Selective adsorption of an eco-friendly and efficient …
For each flotation test, the slurry was acquired by introducing the mineral samples (individual mineral of 2g or artificially mixed minerals of 1.4 g fluorapatite and 0.6 g dolomite) into the plexiglass cell with 25-mL deionized water. ... When PBTCA concentration increased to 0.2 mM, dolomite flotation was depressed (13.48% of …
Flotation Separation of Magnesite from Dolomite Using …
Flotation tests of single minerals and artificially mixed samples were performed using an XFG-type agitation flotation machine (Shunze mining and …