the preparation method comprises the following steps of: (1) sieving impurities with size of larger than 5mm in dolomite tailing slurry, naturally airing or drying with equipment to obtain...

 · The micro-flotation tests of magnesite and dolomite were carried out in an XFG II type flotation cell with a 40 mL detachable cell and a stirring speed of 1600 rpm. The …

The invention discloses a kind of methods that dolomite type magnetic iron ore magnetic tailing recycles fluorite and dolomite.Include the following steps：（1）Grinding …

 · Since the physical and chemical properties of apatite and dolomite can be similar, the separation of these two minerals is difficult. Therefore, when performing this separation using the flotation method, it is necessary to search for selective depressants.

 · When SPE-emulsified OA was used as collector, the flotation recovery of dolomite was decreased slightly compared with Figure 5. Effect of pH on the flotation behavior of fluorite and dolomite. Figure 6. Effect of the mass ratio of OA and SPE on the flotation behavior of fluorite and dolomite at pH 9 0.2. M mistrył Research Article

 · 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 ...

 · The separation of magnesite from dolomite was studied by flotation tests, X-ray photoelectron spectroscopy (XPS), and zeta potential measurements in the presence of calcium ion (Ca²⁺) dissolved...

 · Download Citation | Dolomite flotation of high magnesium phosphate ores using fatty acid soap collectors | The separation of dolomite from apatite has been recognized as one of the most difficult ...

the invention discloses a flotation separation method of barite and dolomite, which comprises the following steps: (1) grinding the dolomite and barite mixed ore sample by a …

 · The separation of magnesite from dolomite was studied by flotation tests, X-ray photoelectron spectroscopy (XPS), and zeta potential measurements in the presence of calcium ion (Ca2+) dissolved from …

Flotation tailings The operator of a waste water treatment plant was looking for a pump with dry-run capability for his flotation system. In the flotation system, substances on the …

 · A selective dolomite flotation process has recently been developed at the University of Florida whereby a two stage conditioning …

 · In this study, compared 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 OA : SPE was found, and the recovery of fluorite was increased from over 85 % to more than 94 % compared with pure OA.

 · After one cleaning, the product analysed 30.4% CaO and 21.25% MgO 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.

Flotation tailings The operator of a waste water treatment plant was looking for a pump with dry-run capability for his flotation system. In the flotation system, substances on the surface of the flotation tank are suctioned off using a rotating suction arm. Previously an eccentric screw pump had been used for this purpose.

In the flotation system of sodium oleate, magnesite and dolomite had good floatability but quartz could hardly be floated. Sodium hexametaphosphate inhibited dolomite more strongly than magnesite. When pH was above 9, the inhibitory effect on two minerals was attenuated, and in the pH range of 9~12, the inhibitory effect of sodium silicate on ...

 · The open circuit with four cleaning stages obtained a concentrate assaying 77.5% magnesite at a recovery of 45.5%. The dolomite content in the concentrate is …

 · The flotation procedure was as follows (1) 2.0 g of the single mineral or mixed minerals (i.e., apatite and dolomite, a mass ratio of 3:2): were placed into a plexiglass …

In this study, manipulation of the electrostatic forces by adding sodium chloride was attempted to achieve the desired separation. Suitable separation of apatite from dolomite was achieved with dodecylamine hydrochloride in the presence of sodium chloride. Zeta potential measurements revealed that sodium chloride acts as an indifferent ...

 · Dolomite, on the other hand, had a lower floatability, with the highest floatability being about 63.57% at pH 7.28. The optimal pH value for flotation was around 9.6, at …

Most of the apatite is recovered in the froth concentrate and the alkaline earth metal carbonate impurities (dolomite) are rejected in the underflow tailings. Dolomite is removed as a float or...

Flotation Separation of Apatite From Dolomite Using Dodecylamine and Sodium Chloride Brij M. Moudgil & Dursun E. Ince Chapter 161 Accesses Abstract It is critical to separate dolomitic limestone impurities from apatite to utilize the South Florida Phosphate Rock deposits for fertilizer manufacturing.

 · Flotation feed material was conditioned at pH 10.0 with fatty acid followed by flotation of apatite and dolomite at pH 8. The float fraction was then reconditioned at a pH less than 4.0 for a selected time interval. …

 · Flotation tailing of Polish copper sulfide ores represents more than 90% of the mass of run-of-mine ore. The tailing contains mainly quartz, dolomite, clay minerals, traces of sulfides, and some accessory minerals. Almost all minerals of the tailing are well liberated and, therefore, any further beneficiation process applied to the tailing is expected to be …

 · Direct flotation is generally used to process phosphate ores that are rich in silica and dolomite minerals. The grade of P2O5 can be increased up to ~30%–34% in concentrate products at ... Preparation of the Flotation Feed. Tailing samples were mixed using a mechanical agitator for 24 h to ensure sample homogeneity. Representative …

 · The underground extraction of Pb-Zn mineralization in the Touiref area stopped in 1958. A large volume of flotation tailings (more than 500 Mt) containing sulfides were deposited in a tailings impoundment. ... SEM images of individual grains in the unoxidized tailing sample (a dolomite–calcite–galena association; ...

 · 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 ...

 · The tailing contains mainly quartz, dolomite, clay minerals, traces of sulfides, and some accessory minerals. Almost all minerals of the tailing are well liberated and, therefore, any further beneficiation process applied …

The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical characteristic, the liberation …

The preparation method comprises the following steps of: (1) sieving impurities with size of larger than 5mm in dolomite tailing slurry, naturally airing or drying with equipment to obtain dolomite tailings with the water content of smaller than 5 percent; (2) grinding and uniformly mixing 9-10.8 percent by weight of firming agent, 81-82.93 ...

 · Since the physical and chemical properties of apatite and dolomite can be similar, the separation of these two minerals is difficult. Therefore, when performing this separation using the flotation method, it is necessary to search for selective depressants. An experimental research was performed on the separation behavior of apatite and dolomite …

 · The effects of Ca2+, Mg2+, Al3+, and Fe3+ on the flotation behaviors of apatite, dolomite and quartz were investigated through a micro-flotation test, and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study, zeta potential measurement, and X-ray photoelectron spectroscopy (XPS) …

 · 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 Na2S to study ...