selective flotation process molybdenite

selective flotation process molybdenite

(PDF) Selective flotation separation of molybdenite

Humic acid (HA) has been studied as a potential selective depressant for molybdenite in the flotation separation of molybdenite and talc in this paper.

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Selective flotation separation of molybdenite and talc

2018-3-1  Humic acid (HA) has been studied as a potential selective depressant for molybdenite in the flotation separation of molybdenite and talc in this paper.

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Selective flotation of chalcopyrite and molybdenite

2014-11-1  For pretreatment of selective flotation, plasma treatment of chalcopyrite and molybdenite was applied then the minerals were washed by solution at pH 9 with oxygen bubbling. Surface characteristics of these minerals were investigated with AFM, XPS, zeta potential and contact angle measurements.

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Selective flotation separation of molybdenite and ...

2019-12-20  Firstly, molybdenite and chalcopyrite are recovered by bulk flotation process to obtain Cu-Mo bulk concentrate by using collectors and frother. Secondly, the bulk concentrate is re-floated to separate molybdenite and chalcopyrite by addition of depressants.

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Selective flotation of chalcopyrite and molybdenite

2017-1-1  The selective flotation of chalcopyrite (CuFeS 2) and molybdenite (MoS 2) was studied using surface oxidation treatments (i.e., ozone (O 3) and hydrogen peroxide (H 2 O 2)). The results indicated that the oxidation treatments had different effects on the wettability of chalcopyrite and molybdenite.

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Selective flotation of chalcopyrite and molybdenite by ...

2014-1-1  Selective flotation of chalcopyrite and molybdenite could be achieved with this process. Possible mechanism of selective flotation was proposed from the results of XPS, AFM, etc. AB - For pretreatment of selective flotation, surface oxidation of chalcopyrite and molybdenite was applied by oxygen plasma then the minerals were washed by solution at pH 9 with oxygen bubbling.

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Selective flotation of chalcopyrite and molybdenite

2018-6-15  Conventional separation of copper and molybdenum ores has been achieved with sulfide ores bulk flotation followed by selective molybdenum flotation with the addition of copper sulfide depressants (i.e., sodium hydrosulfide (NaHS), sodium thioglycollate (HSCH2 COONa), sodium sulfide (Na 2 S), Nokes reagent (P 2 S 5 +NaOH), and sodium thiopropionate (HSCH 2 CH 2 COONa))

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(PDF) Selective flotation of chalcopyrite and

Selective flotation of molybdenite from chalcopyrite, which is the most important copper sulfide mineral, was investigated and various surface analyses were done to confirm phenomena and mechanisms of oxidation process for selective flotation.

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Selective flotation of molybdenite from chalcopyrite ...

2021-1-11  In the flotation of copper sulfide ores, xanthates are usually added for collecting copper minerals. Molybdenite, being naturally hydrophobic, is easily floated with the copper minerals and must then be separated from them. In a large number of laboratory experiments and in several plant ap-plications, KMnO 4

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Metals Special Issue : Advances in Selective Flotation ...

Porphyry Cu-Mo deposits, which are the most important sources of copper and molybdenum, are typically processed by flotation. In order to separate Cu and Mo minerals (mostly chalcopyrite and molybdenite), the strategy of depressing chalcopyrite while floating molybdenite has been widely adopted by [...]

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Effects of pH and pulp potential on selective separation ...

2021-3-16  molybdenite has been achieved with sulfide bulk flotation followed by selective molybdenite flotation by Na 2 S/NaSH addition, because Na 2 S/NaSH acts as a depressant for copper sulfide in the appropriate pulp potential [7]. It was found that changes in pulp potential as an effective factor resulted in dual effects of Na 2

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molybdenite ore flotation leaching process

2020-5-28  a study of mechanisms affecting molybdenite recovery in a bulk .the major factors affecting the flotation recovery of molybdenite from both . of slime coatings in the presence of gangue minerals typical of skarn ores. . acid leaching process intensification for eudialyte concentrate based on energy effects.the selective leaching and separation of molybdenum from complex .2 nov 2013 . of ...

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Molybdenite flotation from copper/molybdenum

Typically, rougher molybdenite flotation and recovery from bulk copper/molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, cyanides, oxidants, and/or thermal treatment to depress copper sulfide minerals. The bulk copper/molybdenum feed generally varies from 0.2% Mo to 1.0% Mo, and with traditional reagents the single-stage rougher flotation recovery of molybdenite ...

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10.1016/j.mineng.2012.02.008 DeepDyve

Based on crude ore, the loss of molybdenite from the rougher concentrate was 15.65% for bulk flotation approach, 20.45% for selective Cu flotation approach and only 5.08% for preferential Mo flotation approach during the Cu/Fe flotation separation.

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A process mineralogy approach to study the efficiency

2020-12-3  Molybdenite is a sulfide mineral and is often found in copper-molybdenum porphyry deposits, which is processed as a by-product of copper during the flotation process 10. Molybdenite mineral is

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OPTIMIZATION OF FLOTATION PARAMETERS FOR

2016-12-27  Optimization of flotation parameters for beneficiation of a molybdenum ore 525 found in low-grade ores and associated with copper sulfides. In order to produce molybdenite concentration, firstly, a bulk copper-molybdenum concentrate is obtained by floating Cu-Mo together. Secondly, molybdenite is enriched selectively by

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外控电位法浮选分离黄铜矿和辉钼矿 - USTB

2019-9-23  Abstract: Chalcopyrite-molybdenite separation has always been a major difficulty in mineral processing. At present, chemical agents are commonly used to regulate the pulp potential. However, the air flowing into the flotation process easily destroys the ...

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Effect of sodium sulfide waste water recycling on the ...

2018-4-4  In the selective flotation of molybdenite and chalcopyrite, sodium sulfide was used as a depressor for chalcopyrite (Wada et al., 1962; Peng et al., 2017) and its dosage was enormous (Qiu, 2009), resulting in the production of big amounts of polluting waste water which

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US1429544A - Differential flotation process - Google

US1429544A US36403320A US1429544A US 1429544 A US1429544 A US 1429544A US 36403320 A US36403320 A US 36403320A US 1429544 A US1429544 A US 1429544A Authority US United States Prior art keywords metals flotation metal pulp selective Prior art date 1920-03-08 Legal status (The legal status is an assumption and is not a legal conclusion.

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曹占芳_百度百科

(1)A novel approach for flotation recovery of copper and molybdenite from a copper-arsenic ore.Metallurgical Research and Technology,2016,113(1):103-121.(第一作者) (2)The selective leaching and separation of molybdenum from complex molybdenite concentrate containing copper.Minerals Metallurgical Processing,2013,30(4): 233-237.

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Selective depression effect in flotation separation of ...

2015-9-21  on molybdenite flotation [11]. Many other new depressants also show depression effect on chalcopyrite. For example, CHEN et al [12] investigated the separation of chalcopyrite and molybdenite using pseudo glycolythiourea acid (PGA), and showed that it is possible to depress chalcopyrite selectively and float molybdenite in the presence of PGA.

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Flotation of molybdenite - United States Borax

Froth flotation process: 1981-05-19: Shaw: 209/167: 4231859: Molybdenite flotation: 1980-11-04: Huiatt: 209/167: 4196073: Hydrophilic thio compounds as selective depressants in the flotation separation of copper and molybdenum: 1980-04-01: Gannon: 209/167: 3811569: FLOTATION RECOVERY OF MOLYBDENITE: 1974-05-21: Shirley: 209/167: 3785488 ...

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molybdenite ore flotation leaching process

2020-5-28  a study of mechanisms affecting molybdenite recovery in a bulk .the major factors affecting the flotation recovery of molybdenite from both . of slime coatings in the presence of gangue minerals typical of skarn ores. . acid leaching process intensification for eudialyte concentrate based on energy effects.the selective leaching and separation of molybdenum from complex .2 nov 2013 . of ...

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A process mineralogy approach to study the efficiency

2020-12-3  Molybdenite is a sulfide mineral and is often found in copper-molybdenum porphyry deposits, which is processed as a by-product of copper during the flotation process 10. Molybdenite mineral is

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10.1016/j.mineng.2012.02.008 DeepDyve

Based on crude ore, the loss of molybdenite from the rougher concentrate was 15.65% for bulk flotation approach, 20.45% for selective Cu flotation approach and only 5.08% for preferential Mo flotation approach during the Cu/Fe flotation separation.

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OPTIMIZATION OF FLOTATION PARAMETERS FOR

2016-12-27  Optimization of flotation parameters for beneficiation of a molybdenum ore 525 found in low-grade ores and associated with copper sulfides. In order to produce molybdenite concentration, firstly, a bulk copper-molybdenum concentrate is obtained by floating Cu-Mo together. Secondly, molybdenite is enriched selectively by

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Effects of pH and pulp potential on the selective ...

In this research, selective flotation of Mo from the Sungun Cu-Mo concentrate was evaluated in different operating conditions. It was found that the addition of 16 kg/t Na2S into flotation pulp and aeration decreased rapidly the initial oxidized- reduction potential (ORP) of the pulp from +228mV to -597 mV (with reference to standard Ag/AgCl electrode) and increasing the amount of Na2S by 50kg ...

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Frontiers Effects of Sodium Alginate on the Flotation ...

Introduction. Molybdenite (MoS 2) is the primary source of molybdenum (Mo), and approximately half of the Mo production is obtained from copper (Cu)–Mo sulfides, mainly porphyry Cu deposits (Ansari and Pawlik, 2007; Song et al., 2012; Hirajima et al., 2014).At present, the flotation separation of Cu minerals and Mo minerals in this type of ore is normally achieved by selectively depressing ...

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Effect of sodium sulfide waste water recycling on the ...

2018-4-4  In the selective flotation of molybdenite and chalcopyrite, sodium sulfide was used as a depressor for chalcopyrite (Wada et al., 1962; Peng et al., 2017) and its dosage was enormous (Qiu, 2009), resulting in the production of big amounts of polluting waste water which

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Carboxymethylcellulose Adsorption on Molybdenite:

2019-5-25  The adsorption of carboxymethylcellulose polymers on molybdenite was studied using spectroscopic ellipsometry and atomic force microscopy imaging with two polymers of differing degrees of carboxyl group substitution and at three different electrolyte conditions: 1 × 10–2 M KCl, 2.76 × 10–2 M KCl, and simulated flotation process water of multicomponent electrolyte content, with an ionic ...

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