Flotation | ore dressing | Britannica.com

Flotation: Flotation, in mineral processing, method used to separate and concentrate ores by altering their surfaces to a hydrophobic or hydrophilic condition—that is, the surfaces are either repelled or attracted by water. The flotation process was developed on a …

Effect of sodium chloride on the selective flotation of ...

14 Flotation of apatite and dolomite (single minerals) as a function of pH 49 15 Flotation of apatite and dolomite (single minerals) as a function of pH 53 16 Effect of sodium chloride addition on apatite and dolomite flotation 61 17 Effect of sodium oleate concentration on apatite and dolomite (single minerals) flotation with and without NaCl ...

apatite oncentrate sampling - supremewheels.co.za

The apatite concentrate sample was pressed into a cylinder 4±0.2 mm in diameter and 5±1 mm in height to ensure the melted droplet did not fall off the substrate. Selective flotation of apatite from iron oxides ScienceDirect.

(PDF) Recovery of apatite from flotation tailings ...

Recovery of apatite from flotation tailings. ... The resulting soaps were then dispersed in water to pro- effects on the grade and recovery of apatite in the concentrate. The duce a ready solution with an oil concentration of 2.5 wt.%. The KE reagent mixing aimed at taking advantage of the higher selectivity collector was diluted to 2.5 wt.%.

FLOTATION ROUTES FOR A PHOSPHATE ORE BEARING …

FLOTATION ROUTES FOR A PHOSPHATE ORE BEARING SILICATE-CARBONATE GANGUE Rodrigo O. Albuquerque 1, Antonio E. C. Peres2*, José A. Aquino,Carlos A. Pereira3 ... Apatite Concentrate BULK FLOTATION CALCITE FLOTATION Flotation Feed Figure 3 - Mass and metallurgical balance test T2.

Phosphorite - Wikipedia

The phosphate content of phosphorite (or grade of phosphate rock) varies greatly, from 4% to 20% phosphorus pentoxide (P 2 O 5). Marketed phosphate rock is enriched ("beneficiated") to at least 28%, often more than 30% P 2 O 5. This occurs through washing, screening, de-, magnetic separation or flotation.

Recovery of apatite from flotation tailings | Request PDF

A 25 cu ft flotation cell was operated continuously to produce an apatite-rich concentrate. The experimental results reported in this paper attempt to elucidate the role of the particle size ...

Innovative Solutions for Flotation of Industrial Minerals

We offer solutions for the flotation of non-sulfide minerals Phosphate The Lupromin® FP A anionic collectors range is recommended for apatite flotation where the percentage of silicates or calcium oxide / phosphorous pentoxide ratio is high.

Recovery of Apatite from Slimes of A Brazilian Phosphate Ore

to remove particles < 10 μm; barite flotation and apatite flotation. This work shows the results obtained in a study of apatite concentration from a slime sample provided by the industrial phosphate ore plant of the Copebras (China Molybdenum - CMOC International), located at Catalão (Goias state, Brazil). The feed sample containing 13.2% of

US3405802A - Flotation of apatite - Google Patents

The present invention relates to an improved method of mineral flotation, especially of apatite and media therefor. Froth flotation is a widely known process and is employed in many parts of the world to concentrate desired minerals from their ores and the like.

Froth Flotation Process - Mineral Processing & Metallurgy

FROTH FLOTATION "So many variables influence flotation that it will be long before every one of them can be investigated and its influence on the process determined." The froth flotation process was patented by E. L.Sulman, H. F. K. Pickard, and John Ballot in 1906, 19 years after the first cyanide process patents of MacArthur and the Forests.

An Alternative Flotation Process for Apatite Concentration ...

An Alternative Flotation Process for Apatite Concentration of the Itataia Carbonaceous Uranium-Phosphate Ore ... Flotation carbonates Air Apatite concentrate Froth Conditioning-50% solids-Collector(sulphosuccinate) ... An Alternative Flotation Process for Apatite Concentration of the Itataia Carbonaceous Uranium-Phosphate Ore

(PDF) Reagents used in the flotation of phosphate ores: A ...

Furthermore, another locked cycle flotation test showed that a 0.82 % MgO content in the final apatite concentrate can be achieved with an apatite recovery of 75.6 % at a P2O5 grade of 36.76 % ...

Apatite - an overview | ScienceDirect Topics

Flotation parameters, including the collector type and dosage, depressant type and dosage, and grinding size were tested. A concentrate with the contents of REE 9.3% and apatite 85.0% at REE recovery of 84.8% was obtained.

Production of an apatite concentrate from tailings at the ...

The characterization of apatite distribution in the Niobec concentrator tails has established that apatite is present in the larger particles. Size sorting is therefore a simple low-cost pre-concentration method. The coarse fraction would then by treated by reverse flotation to produce a concentrate grading 71% apatite.

Carbonate Depressants - Froth Flotation (Sulphide & Oxide ...

I'm planning to float apatite in direct flotation. ... Froth Flotation (Sulphide & Oxide) ... Flotation at coarse grind, regrind of rougher concentrate, separation of apatite from impurities can also be tried. Amar. 3 years ago. Amar 3 years ago. Like. My sample's liberation size is 100 micron.

PHOSPHATE PRODUCERS IMPROVE PLANT PERFOR …

PHOSPHATE PRODUCERS IMPROVE PLANT PERFOR MANCE USING C.P.T. INC FLOTATION TECHNOLOGY Harold E. Wyslouzil - P.Eng ... d80 = 150 µm) for flotation. Barite is removed prior to coarse apatite flotation. The rougher tailings . ... with a single column producing final concentrate. The total number of flotation cells was

(PDF) Apatite Flotation from Brazilite–Apatite–Magnetite ...

The ratio of apatite and carbonates in flotation concentrate corresponded to that in the floatation feed. This allows a conclusion about close flotability of apatite and calcite in the test sample. In flotation of the second sample with Phospholan PE65, adding liquid glass right down to the consumption of 1 kg/t did not lead to the increase of ...

Process for Obtaining Apatite Concentrates by Flotation ...

Apr 12, 2012· The system to generate bubbles for flotation works independently, being feed with atmospheric air for the self-aspirated machines or compressed air for the flotation cells with air insufflation and notation columns. The final concentrate of apatite is the flotated portion of the last cleaning step of the flotation circuit.

A new froth pump for improved flotation concentration …

A new froth pump for improved flotation concentration handling W.R. Taylor Weir Minerals Africa (Pty) Ltd The apatite mineral containing the phosphate at the Foskor Phalaborwa operation is recovered via a flotation process. The phosphate concentrate is recovered in the flotation

Development of fatty acid modifier for beneficiation of ...

Nov 14, 2017· Development of fatty acid modifier for beneficiation of the igneous apatite ores of Kovdordeposit 1. Mining Solutions Development of fatty acid modifier for beneficiation of the igneous apatite ores of Kovdor deposit Rostislav Kamkin, Alexej Michailovski, Pavel Alexandrov, Pasi Mikkola MEI Flotation`17 conference Capetown 2017 2.

Unlocking Rare Earth Elements From European Apatite …

Monazite mainly reports to the apatite concentrate while allanite largely goes to the tailings. Laboratory flotation also shows some preferential concentration of heavy REE over light REE to the apatite concentrate. ... Unlocking Rare Earth Elements From European Apatite-Iron Ores ...

A Comparative Study of Di Ultrafine Apatite Flotation

minerals Article A Comparative Study of Di erent Columns Sizes for Ultrafine Apatite Flotation Elves Matiolo 1,*, Hudson Jean Bianquini Couto 1, Michelle Fernanda de Lira Teixeira 2, Renata Nigri de Almeida 1 and Amanda Soares de Freitas 1,3 1 Centro de Tecnologia Mineral (CETEM/MCTI), Rio de Janeiro 21941-908, Brazil 2 Copebras—China Molybdenum Company Ltd (CMOC International Brasil ...

Use of depressants in the direct flotation of a silicate ...

This work, carried out with a silicate-carbonate phosphate ore, aimed at studying the performance of depressant agents of different origins in the separation of apatite from the contaminants calcite and silicates by laboratory scale flotation. 2. Materials and methods

Production of apatite concentrate from fine-grain ...

Abstract. The Kovdorsky GOK JSC increases the production of apatite concentrates by involving fine-grain sands with 10.3–10.5 % P 2 O 5 content from waste piles into the processing flow. The new process and flotationagent mode were developed to produce apatite concentrate with 38.3 % P 2 O 5 content from fine sands with 60–70 % content of −0.071 mm fraction at the recovery as high as 60% ...

US5407080A - Apatite flotation reagent - Google Patents

This invention relates to apatite flotation reagents which can be used simultaneously with silica collectors in a coflotation process without problems of incompatibility between the apatite flotation reagent and the silica collectors. The apatite flotation reagent includes soya lecithin. The soya lecithin can be used as an apatite collector by itself or can be blended with a phosphate ester ...

DEFINITION THE TECHNOLOGY METHOD OF APATITE …

process of preparing the low-grade phosphate ore for obtaining the phosphate concentrate using the flotation concentration. The apatite concentrates are obtained using the selective flotation from the silicate and oxide minerals while defining the process of selective flotation of apatite from carbonate deposits is the major problem worldwide.

Effect of calcium concentration on calcite flotation from ...

Calcite flotation Flotation Apatite concentrate Air Sink Silicates CO 2 R P 2 O 5 77% 33% P 2 O 5 Matiolo et al. (2015) Apatite flotation Collector (Sulphosuccinate) -pH –11 NaOH Corn starch (depressant) Collector (Coconut soap) -pH –5.8 ( CO 2 bubble generator)

Experimental Study on Low Temperature Flotation Recovery ...

An experimental research on comprehensive recovery of associated apatite from certain iron tailings in China was carried out. The phosphorus flotation is realized at low temperature through the application of the new, more efficient AW series collector. The test results showed that the concentrate whose P2O5 grade was 33.50%,recovery was 92.18% was obtained for the tailings whose P2O5 grade ...

PHOSPHATE PRODUCERS IMPROVE PLANT …

PHOSPHATE PRODUCERS IMPROVE PLANT PERFORMANCE USINg EriEz Flotation Division tEchnology harold E. Wyslouzil ... coarse apatite flotation. The rougher tailings for the coarse circuit are ... concentrate. The total number of flotation cells was reduced from 64 - 300 ft3 Wemco cells to 6 ...