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Dolomite Flotation Concentrate

Flotation of Dolomite from Apatite - MDPI

dolomite by flotation was systematically investigated. Flotation results revealed that NaPP could selectively depress the flotation of apatite, thus realizing the separation of apatite from dolomite.

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Improving flotation separation of apatite from dolomite ...

2020-09-01  In the apatite flotation process, carbonate minerals especially magnesium-bearing dolomite are easy to enter into apatite concentrates, reducing the quality of concentrate products and causing excessive acid consumption in downstream processing.

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dolomite flotation concentrate - zimmer1berlin.de

dolomite flotation concentrate. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals. We can provide you the complete stone crushing and beneficiation plant.We also supply stand-alone crushers, mills and beneficiation machines as well ...

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Selective flotation separation of apatite from dolomite ...

Efficient flotation separation of apatite from dolomite can be realized by P (AA-AMPS). P (AA-AMPS) is an eco-friendly and efficient depressant of the dolomite flotation. Much more adsorption of P (AA-AMPS) occurs onto dolomite than apatite. The pre-adsorption of P (AA-AMPS) prevents strongly NaOl adsorption onto dolomite.

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Selective reverse flotation of apatite from dolomite in ...

2017-08-10  Closed-circuit reverse flotation tests using GOFA as the collector resulted in an excellent concentrate with 28.46 wt% P 2 O 5 and 0.65 wt% MgO, corresponding to a P 2 O 5 recovery of 87.2%. GOFA was demonstrated to exhibit outstanding selectivity for dolomite in the reverse flotation

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Promising options for solving the dolomite problem of the ...

Option I entails three methods for reducing MgO content in the concentrate from the Crago process, including adding a dolomite depressant in the rougher flotation step, dolomite flotation of the cleaner concentrate, and scrubbing the cleaner concentrate in quartz sand, which could reduce MgO content in the final concentrate by 20 to 40 percent. Option II involves the crushing and grinding of ...

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Removal of Dolomite from Phosphate Pebble Concentrate by ...

Dolomite [CaMg(CO 3 2] is an objectionable impurity in phosphate ores due to its MgO content. Separating dolomite from phosphate ores (apatite) has proven to be difficult due to very similar mineralogical properties. It is desired that a process reduce MgO content in the concentrate to less than 1%, while still achieving respectable phosphate recoveries. ...

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A Review of Flotation Separation of Mg Carbonates ...

Dolomite (CaMg(CO3)2) and magnesite (MgCO3) are the main Mg carbonates [3–8] that can be associated with other salt-type minerals, including phosphates (e.g., Apatite), sulfates (e.g., Barite), halides (e.g., Fluorite) and tungstates (e.g., Scheelite) [5,9], as well as sulfides, and other oxides.

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Flotation of Cu and Pb sulfide concentrates containing ...

A lead concentrate containing magnesium and calcium as dolomite was subjected to two-stage cleaning flotation without an acid treatment and with sulphuric acid conditioning of the concentrate from the first-stage cleaning flotation. The final concentrate obtained without acid treatment contained 74.48% Pb, 0.98% MgO and 1.60% CaO; and the lead recovery was 97.61%. The final concentrate ...

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Differential adsorption of hydrolytic polymaleic anhydride ...

2021-02-01  Flotation, a separation and concentrate process that utilizes the different physicochemical properties of minerals to remove gangue minerals from valuable minerals,,,, is regarded as the most effective method for removing dolomite from apatite,,.

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Flotation of Dolomite from Apatite - MDPI

The flotation process lasted 3 min for each test. Following this, the flotation recoveries were calculated based on the weights of concentrates and tailings. For artificial mixed minerals flotation experiments, the mass ratio of apatite and dolomite mineral was 1:1 for binary mixture. The flotation process was the same as single mineral tests ...

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Promising options for solving the dolomite problem of the ...

Option I entails three methods for reducing MgO content in the concentrate from the Crago process, including adding a dolomite depressant in the rougher flotation step, dolomite flotation of the cleaner concentrate, and scrubbing the cleaner concentrate in quartz sand, which could reduce MgO content in the final concentrate by 20 to 40 percent. Option II involves the crushing and grinding of ...

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Removal of Dolomite from Phosphate Pebble Concentrate by ...

Dolomite [CaMg(CO 3 2] is an objectionable impurity in phosphate ores due to its MgO content. Separating dolomite from phosphate ores (apatite) has proven to be difficult due to very similar mineralogical properties. It is desired that a process reduce MgO content in the concentrate to less than 1%, while still achieving respectable phosphate recoveries. ...

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Hydrochloric acid leaching for upgrading flotation ...

The XRD analysis of the flotation concentrate indicates that the content of abundant carbonate minerals of dolomite significantly reduces the A/S ratio in the concentrate. As these minerals react with hydrochloric acid (Reddy et al., 1999), the hydrochloric acid leaching of the concentrate was carried out, to improve its Al 2 O 3

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BENEFICIATION OF DOLOMITE AND MAGNESITE

concentrate assaying 2.7% insol. 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. Large deposits of magnesite are ...

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A Review of Flotation Separation of Mg Carbonates ...

the final concentrate recovery. Fine carbonates ( 45 m) exhibit low selectivity in flotation systems [23]; ... Flotation Type Dolomite Recovery (%) Associated Mineral Recovery (%) Mineral Type References 100 + 74 Reverse ~15 Apatite: ~85 Pure mixture [27] 500 + 100 Reverse ~20 Apatite: ~95 Pure mixture 100 + 74 Direct 80 ~95 Single pure [36] 74 Reverse 12.57 Apatite: 87.20 Ore [30] 106 + 45 ...

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Flotation of Cu and Pb sulfide concentrates containing ...

A lead concentrate containing magnesium and calcium as dolomite was subjected to two-stage cleaning flotation without an acid treatment and with sulphuric acid conditioning of the concentrate from the first-stage cleaning flotation. The final concentrate obtained without acid treatment contained 74.48% Pb, 0.98% MgO and 1.60% CaO; and the lead recovery was 97.61%. The final concentrate ...

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Elimination of the Adverse Effect of Calcium Ion on the ...

dolomite enters into magnesite concentrate easily in the flotation process, thus affecting the grade of the concentrate and causing problems for the downstream smelting process. Therefore, it is very important to realize the effective separation of magnesite from dolomite. Both magnesite and dolomite are calcite-group minerals with similar physical and chemical properties and the same

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Flotation of phosphate ores containing dolomite ...

The anionic flotation agent attaches to the dolomite impurities and they are floated away to waste 37 as the flotation cell overflow to separate the dolomite from phosphate concentrate 38, which is the cell underflow from the dolomite float 36. The phosphate concentrate 38 is then dewatered at 39 and delivered to concentrate product stockpile at 40.

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(PDF) Flotation of chromite and serpentine

Sodium pyrophosphate and sodium hexametaphosphate were found to be strong depressing agents for dolomite in the alkaline region, presenting only a slight action on magnesite flotation ...

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Dolomite Mining Process - shlutheransa.org

Dolomite mining process is the solution of separating dolomite concentrate from Dolomite raw ore. Based on mosaic structure of the Dolomite mine and years of mining process experiences, Xinhai applying Dolomite mining process of two-stage crushing, washing, then three-stage separating, flotation process will be used to process Dolomite with complex structures.

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Development of Reagent Schemes for Reducing MgO Content in ...

Successful methods include adding a dolomite depressant in the rougher flotation, dolomite flotation on the cleaner concentrate with grinding, and scrubbing the cleaner concentrate in quartz sand. These techniques could reduce MgO content in the final concentrate by 20-40%. The flotation process could achieve a concentrate with the lowest MgO content, but it is the

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mining process of dolomite

Dolomite mining process is the solution of separating dolomite concentrate from Dolomite raw ore. Based on mosaic structure of the Dolomite mine and years of mining process experiences, we applying Dolomite mining process of two-stage crushing, washing, then three-stage separating, flotation process will be used to process Dolomite with complex structures.

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Mineralogical Prediction of Flotation Performance for a ...

The flotation concentrate from sample S6 mainly consists of the valuable sulphide minerals bornite, carrollite and minor chalcocite with a relatively small number of gangue particles (quartz, K-feldspar and dolomite). The flotation tailings from sample S6 mainly consist of dolomite and quartz, well-liberated carrollite grains and to a lesser extent bornite and chalcocite grains. This

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Flotation separation of carbonate from sulfide minerals, I ...

A great quantity of dolomite enters into magnesite concentrate easily in the flotation process, thus affecting the grade of the concentrate and causing

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Minerals Free Full-Text Elimination of the Adverse ...

Dolomite (CaMg(CO 3) 2) which is one of the most common and typical carbonate gangues, often coexists with rhodochrosite, smithsonite, magnesite, and pyrite [5,6,7,8,9,10].A great quantity of dolomite enters into magnesite concentrate easily in the flotation process, thus affecting the grade of the concentrate and causing problems for the downstream smelting

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Designing the Optimal Flotation Circuit – The Prominent ...

‘earthy’and ‘dolomite’. This work included: • maximising gold recovery and minimising concentrate weight, since the gold flotation concentrate would be blended with the copper-gold concentrate; • determining the nature of gold occurrence and losses; • determining the effect of blending by doing locked cycle tests on both individual mineralisation types and blends of

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Journal of Physics: Conference Series PAPER OPEN ACCESS ...

The quartz and carbonate minerals (dolomite, calcite and siderite) cause iron concentrate dilution. The majority of minerals, that can be referred to as oxides and silicates, have strong flotation properties in the presence of anionic (fatty acid, etc.) and cationic type collectors. However, the floatability of minerals using anionic collectors depends on the type and quantity

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dolomite flotation concentrate bqqcke

dolomite flotation concentrate - blackbanqueting.it. Flotation Research on Dolomite-Containing Magnesite Ore . Closed-circuit reverse flotation tests using GOFA as the collector resulted in an excellent concentrate with 28 46 wt P 2 O 5 and 0 65 wt MgO corresponding to a P 2 O 5 recovery of 87 2 GOFA was demonstrated to exhibit outstanding selectivity for dolomite in the reverse flotation

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Flotation of Chromite Ore

Table of ContentsEQUIPMENTFlotation of Chromite ProcedureResultsEffect of Pulp pH on Flotation of ChromiteEffect of Collectors on Flotation of Chromite OreEffect of pH Modifier Flotation of ChromitePreconditioning Acid ScrubEffect of DeslimingEffect of Ore TypeFlotation of Chromite Gravity ConcentrateConclusions The Stillwater Complex in Montana (mainly the

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THE FLOTATIO APATITN OF E AND DOLOMITE IN

flotation of dolomite from apatite. An attemp t has been made to evaluate the mechanism by which orthophosphat ione s depres s apatite flotation. -2-2 Replacement of SO^ ion ons gypsum by HFO^ ion is s found to occur rapidly in solution. Th presence e of CaHPO^* 211^0 o n gypsum surface iss shown using infrare reflectancd spectroscopye . CaHPO^^I^O is isomorphous with

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A Review of Flotation Separation of Mg Carbonates (Dolomite and Magnesite

The results showed that an optimized phosphorous concentrate with a P2O5 grade of 31.35% and P2O5 recovery of 88.02% was obtained by flotation process of one roughing, three scavengings, and three ...

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Dolomite Crusher, Dolomite Mining, Dolomite Mines, Dolomite Mining Process, Dolomite

Dolomite mining process is the solution of separating dolomite concentrate from Dolomite raw ore. Based on mosaic structure of the Dolomite mine and years of mining process experiences, Xinhai applying Dolomite mining process of two-stage crushing, washing, then three-stage separating, flotation process will be used to process Dolomite with complex structures.

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US4364824A - Flotation of phosphate ores containing dolomite -

A reverse flotation process for removing alkaline earth metal carbonate impurities particularly dolomite and calcite as the cell overflow from a flotation feed reagentized with water, a carbonate collector, a phosphate depressant and a pH regulator to about 20-30% solids and a pH of about 5.5-6.0. The phosphate concentrate is collected as the cell underflow.

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Improving flotation separation of apatite from dolomite using

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 ...

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Promising Options for Solving the Dolomite Problem of the Florida Phosphate Resources—a Brief Review

Option 2 involves crushing and grinding of high-dolomite phosphate pebbles followed by dolomite flotation at slightly acidic pH using a new collector that does not require phosphoric acid as a phosphate depressant, achieving a final concentrate analyzing less than 0.9% MgO at about 87% P2O5 recovery. Option 3 is a gravity separation technique using an innovative

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Cellulase as a new phosphate depressant in dolomite-phosphate flotation

oleic acid, a phosphate concentrate containing 0.89% MgO with a P 2 O 5 recovery of 75% was obtained from the phosphate ore containing 2.2% MgO. Keywords: flotation, cellulose, cellophane, dolomite, oleic acid Introduction The phosphate/oleic acid flotation system has been studied extensively since the beginning of the flotation reached. Oleic acid in either salt or

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US3419140A - Selective flotation of dolomite away from

Selective flotation of dolomite away from magnesite Download PDF Info Publication number US3419140A. US3419140A US549308A US54930866A US3419140A US 3419140 A US3419140 A US 3419140A US 549308 A US549308 A US 549308A US 54930866 A US54930866 A US 54930866A US 3419140 A US3419140 A US 3419140A Authority US United States Prior art keywords magnesite flotation

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barite and copper flotation

mine flotation machine for barite in singapore Dolomite mining process dolomite mining process is the solution of separating dolomite concentrate from dolomite raw ore based on mosaic structure of the dolomite mine and years of mining process experiences, xinhai ...

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Expansion of the Mount Isa Mines Copper Concentrator Phase

through the silica-dolomite. Mineralogical examination indicates liberation about 75 per cent at PE of Flotation feed Slzmg is normally in the range SO per cent passing um, depending on nullmg rate and ore _ Smelter slag treatment Treatment of converter slag m the 1970's and 980's was on a batch basis dunng periods of ore shortage. The batch processing of Copper Smelter

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