• Molybdenite flotation from copper/molybdenum

    1990-11-1 · 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 Molybdenite flotation from copper/molybdenum ,2012-6-18 · Abstract—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/ molybdenumfeed generally varies from 0.2%

  • 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 flotation from copper sulfide/molybdenite,A process for recovering molybdenite from feed materials containing copper sulfide and molybdenite (e.g. copper/molybdenum concentrates from flotation processes) wherein the feed material is treated with ozone and then floated to recover molybdenite.

  • Recent progress on research of molybdenite flotation: A

    2021-9-1 · Molybdenite in porphyry ores is a byproduct of copper concentrate, therefore it is more reasonable to establish both the grinding size and the flotation scheme for copper minerals. Fig. 19 (a) [ 13 ] displays the average size by size recovery of molybdenum and copper for 18 months in the Bingham Canyon mine.Oxidation-reduction effects in the flotation of copper,Copper-molybdenum porphyry ores often contain copper sulfide minerals, molybdenite, pyrite, iron oxides, and gangue minerals. Due to the differences in the flotation properties of sulfide minerals and associated gangues, flotation is the most common method for processing copper-molybdenum sulfide ores.

  • Review of the flotation of molybdenite. Part I: Surface

    2016-3-10 · Particle size is a very important factor affecting flotation properties of molybdenite. In porphyry copper–molybdenite ores the flotation conditions (grinding, reagents, bubble size, etc.) all are optimized with respect to Cu and not Mo. Fig. 2 shows that the optimum flotation particle size for molybdenite is around 20 μm, and the size fraction 6.8 μm exhibits the lowest recovery (PDF) Selective separation of copper-molybdenum sulfides,The flotation separation of molybdenite from copper sulfide minerals (mostly chalcopyrite) typically relies on the use of toxic inorganic depressants such as cyanides and sodium sulfide

  • A process mineralogy approach to optimize molybdenite

    2020-10-1 · The samples were taken from the molybdenite flotation circuit at the copper-molybdenum processing complex of Sungun. The flotation circuit of the plant consists of two 8-cell rows for the rougher flotation stage. The volume of each cell is 2.8 m 3 and of mechanical type. The cleaner stage consists of an 8-cell row, of the same type as rougherINVESTIGATION OF EFFECTIVE PARAMETERS FOR ,2014-5-13 · copper flotation plants was examined. According to the operations, the recovery of molybdenite in the rougher/scavengers of the bulk Cu/Mo flotation circuit was consistently lower than that of copper sulphide. Moreover, reducing the flotation feed solids percent led to an increase in molybdenite recovery whereas copper flotation was

  • Molybdenite flotation from copper sulfide/molybdenite

    A process for recovering molybdenite from feed materials containing copper sulfide and molybdenite (e.g. copper/molybdenum concentrates from flotation processes) wherein the feed material is treated with ozone and then floated to recover molybdenite.(PDF) Recovery of molybdenum and copper ,Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation. Properties of molybdenite such as mineralogy, microstructure, surface wettability, zeta

  • Optimization of a Copper/Molybdenum Flotation Circuit

    2020-6-16 · copper and reject iron to establish a base test to compare other reagent schemes with. This work included flotation reagents such as dithiophosphate, thiocarbamate and AERO 3302 promoter as chalcopyrite collectors, fuel oil as molybdenite collector, and sodium sulfite, inc sulfate, calcium hydroxide and potassium dichromate as pyrite depressantsRecovery of molybdenum and copper from porphyry ore ,2017-10-1 · A copper–molybdenum iso-flotability flotation process has been developed to efficiently improve the recovery of molybdenite from Duobaoshan porphyry Cu–Mo ores. The effects of flotation approach, type of collector, feed particle size distribution, rougher pH value and reagent dosage on the recovery of molybdenite were evaluated systematically.

  • (PDF) Selective separation of copper

    The flotation separation of molybdenite from copper sulfide minerals (mostly chalcopyrite) typically relies on the use of toxic inorganic depressants such as cyanides and sodium sulfideCopper Removal from Molybdenite by Sulfidation ,Abstract. Molybdenite (MoS 2) concentrates are produced by differential flotation from bulk copper-molybdenum concentrates.However, complete separation of molybdenum by flotation is very difficult, thus, molybdenum concentrates produced by this route requires a further step of chemical purification in order to reduce the copper content to a suitable level for marketing.

  • Copper-Molybdenum ores Danafloat

    Separation and upgrading the molybdenite from the bulk copper-molybdenite concentrate is generally accomplished by selective molybdenite flotation following copper and iron sulphide depression. Standard depressant schemes include high pH via lime addition, sodium hydrosulphide, Nokes reagent, etc.INVESTIGATION OF EFFECTIVE PARAMETERS FOR ,2014-5-13 · copper flotation plants was examined. According to the operations, the recovery of molybdenite in the rougher/scavengers of the bulk Cu/Mo flotation circuit was consistently lower than that of copper sulphide. Moreover, reducing the flotation feed solids percent led to an increase in molybdenite recovery whereas copper flotation was

  • Separation of molybdenite from its mixture with other

    We claim: 1. A process for recovering molybdenite from a flotation concentrate containing molybdenite and copper sulfide, comprising: contacting the concentrate with an effective amount of dithiocarbonic acid, trithiocarbonic acid, water soluble salts of dithiocarbonic acid or trithiocarbonic acid, or mixtures thereof, to depress copper sulfide; andMechanism study on flotation separation of molybdenite,In this study, a novel organic depressant maleyl 5-amino-1,3,4-thiadiazole-2-thiol (MATT) was synthesized and utilized as a galena depressant in the flotation separation of

  • Molybdenite Flotation From Copper mmladez.cz

    Molybdenite Flotation From Copper. Factors Affecting The Flotation Recovery Of Molybdenite . Factors affecting the flotation recovery of molybdenite from porphyry copper ores Raghavan Srini Hsu Land L In International Journal of Mineral Processing Vol 12 No 13 1984 p 145162 Research output Contribution to journal Article.Molybdenite flotation from copper/molybdenum ,Molybdenite flotation from copper/molybdenum concentrates by ozone conditioning 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.

  • molybdenite flotation from copper

    Molybdenite is a mineral of molybdenum disulfide Molybdenite also occurs in porphyry copper deposits of Arizona Molybdenite is purified by froth flotation . 60 Centuries of Copper The Flotation Process. The Flotation Process Until quite recently copper ore had to be hand-picked if the extraction of the metal was to be economical In fact in theOxidation-reduction effects in the flotation of copper,2022-3-18 · separation of copper sulfide and molybdenite minerals from gangue minerals, especially pyrite. Adjustment of Eh in the range of 500 to 700 mV in the molybdenum processing plant has also led to the depression of copper minerals and the flotation of molybdenite, resulting in the effective separation of these minerals. However, grade

  • Copper-Molybdenum ores Danafloat

    Separation and upgrading the molybdenite from the bulk copper-molybdenite concentrate is generally accomplished by selective molybdenite flotation following copper and iron sulphide depression. Standard depressant schemes include high pH via lime addition, sodium hydrosulphide, Nokes reagent, etc.INVESTIGATION OF EFFECTIVE PARAMETERS FOR ,2014-5-13 · copper flotation plants was examined. According to the operations, the recovery of molybdenite in the rougher/scavengers of the bulk Cu/Mo flotation circuit was consistently lower than that of copper sulphide. Moreover, reducing the flotation feed solids percent led to an increase in molybdenite recovery whereas copper flotation was

  • Molybdenum Processing IMOA

    Flotation separates the metallic minerals from the gangue this way and in the case of copper/ molybdenum ores separates molybdenite from copper sulphide. The resulting MoS 2 concentrate contains between 85% and 92% MoS 2. Recovery of molybdenite from copper sulfide concentrates,US-3313412-A chemical patent summary.

  • Effects of pH and pulp potential on selective separation

    2022-3-20 · reagents, etc. [7]. Conventional separation of copper sulfide and 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].Selective flotation of molybdenite from chalcopyrite,2021-1-11 · The flotation reagents (0.2 lb/ton fuel oil and 0. 1 lb/ton MIBC frother) were added and an additional 5 minutes of conditioning allowed. Flotation of molybdenite then proceeded for 3 minutes. Both the concentrates and tailings were saved, dried, and weighed to determine the copper-depression percentages. 4 4