separation copper from molybdenite pulp

US2664199A - Flotation recovery of molybdenite - Google ...

US2664199A US306638A US30663852A US2664199A US 2664199 A US2664199 A US 2664199A US 306638 A US306638 A US 306638A US 30663852 A US30663852 A US 30663852A US 2664199 A US2664199 A US 2664199A Authority US United States Prior art keywords concentrate molybdenite flotation copper iron Prior art date Legal status (The legal status is an assumption and is …

WO2013169141A1 - Method and apparatus for separation of ...

A method and an apparatus for the separation of the mineral components of a pyrite containing copper- molybdenum ore by flotation. The method comprises grinding the ore in the presence of soda ash in an open circuit to produce an aqueous ore slurry; subjecting the slurry to a collective flash flotation step (10) in the presence of soda ash and sodium sulphide to recover a first part of metal ...

Process for separating copper and iron minerals from ...

Mar 02, 1982· Separation of the molybdenite from a concentrate of copper minerals involves complicated chemical processes for treating the particles with depressors which inhibit copper floating and improve floating of the molybdenite. The pulp is stirred for a period of 24 to 48 hours, and it is washed with live steam.

US2957576A - Recovery of molybdenite by flotation - Google ...

US2957576A US719708A US71970858A US2957576A US 2957576 A US2957576 A US 2957576A US 719708 A US719708 A US 719708A US 71970858 A US71970858 A US 71970858A US 2957576 A US2957576 A US 2957576A Authority US United States Prior art keywords concentrate flotation molybdenite percent sulfide Prior art date Legal status (The legal status is an …

Copper–Molybdenum Sulphide Ore by Flotation

Keywords: chalcopyrite; molybdenite; flotation depressant; seaweed glue 1. Introduction In the case of copper–molybdenum separation, chalcopyrite (CuFeS2) and molybdenite (MoS2) are the main copper and molybdenum minerals found in complex sulfide ores. The natural hydrophobicity of molybdenite results from its layered crystal structure.

Up-gradation of MoO3 and separation of copper, iron, zinc ...

Up-gradation of MoO 3 and separation of copper, iron, zinc from roasted molybdenum ore by a ... an oxidation process of molybdenite was carried out at 550-595 ºC in the present study. ... copper, iron and zinc, the pulp density influence follows the order: copper > zinc > iron. Especially in the case of copper the pulp density reached 20% and ...

Recent advances of rhenium separation and enrichment in ...

1.3. Separation and enrichment. Now, the practicable ores containing rhenium in industry are copper concentrates and molybdenite (MoS 2). Typically, rhenium exists in mixed copper/molybdenum deposits, which is firstly separated from the copper (accompanied with molybdenum), using conventional concentration technologies such as froth flotation.

(PDF) Effect of copper ions on the flotation separation of ...

Copper ions are unavoidable in the process of copper-molybdenum flotation separation. The flotation response of chalcopyrite and molybdenite in the presence of copper ions was investigated through ...

molybdenite flotation from copper

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

US2811255A - Process for recovery of molybdenite from ...

US2811255A US424621A US42462154A US2811255A US 2811255 A US2811255 A US 2811255A US 424621 A US424621 A US 424621A US 42462154 A US42462154 A US 42462154A US 2811255 A US2811255 A US 2811255A Authority US United States Prior art keywords percent molybdenite concentrate copper flotation Prior art date Legal status (The legal status is an assumption …

Industrial use of nitrogen in flotation of molybdenite at ...

As an alternative solution, flotation at reduced pulp density (24%) improved the grade and the recovery of copper and molybdenum and decreased the grade and recovery of Al 2 O 3 and SiO 2 in ...

OPTIMIZATION OF FLOTATION PARAMETERS FOR …

by floating Cu-Mo together. Secondly, molybdenite is enriched selectively by depressing copper and iron sulfides (Wills, 1997). In addition, it should be noted that conditioning time, pulp density, and reagent additions are the most important parameters in the separation of copper-molybdenum (Bulatovic, 2007).

The flotation separation of molybdenite from chalcopyrite ...

The bulk Cu-Mo concentrate used for the flotation separation of molybdenite from copper sulfides in bench-scale flotation experiments was supplied by China Molybdenum Co., Ltd. It was collected directly from a day shift with grades of approximately 9.0% Mo and 1.0% Cu based on chemical element analysis results as shown in Table S1 (see ...

Flotation separation of molybdenite from chalcopyrite ...

1. Introduction. It is well known that molybdenite is an important mineral source to extract molybdenum metal. It is usually associated with other sulphide minerals, such as pyrite, chalcopyrite, galena and sphalerite (Hirajima et al., 2017, Hirajima et al., 2014).Owing to the sharp increase in price of the molybdenum metal, the production of molybdenite concentrate has been attracting more ...

Flotation separation of copper–molybdenum sulfides using ...

Nov 01, 2015· Chitosan, a natural biodegradable polymer, was studied as a selective depressant in copper–molybdenum sulfide separation by flotation. Although chitosan depressed both molybdenite and chalcopyrite in single mineral flotation, selective flotation was achieved during the flotation of molybdenum-bearing copper sulfide concentrate at pH 6; the recovery of molybdenum in the froth …

The Effect of Seaweed Glue in the Separation of Copper ...

Flotation separation of chalcopyrite from molybdenite was studied using seaweed glue (SEG) as a depressant. Flotation process and mechanism were examined by response surface methodology, flotation tests, adsorption tests, zeta potential measurements and fourier transform infrared (FT-IR) spectra. Response surface methodology with a Box–Behnken design suggested the optimal reagent …

as a Novel Selective Depressant for Chalcopyrite in ...

Molybdenite (MoS2) and chalcopyrite (CuFeS2) are known molybdenum and copper-bearing sulphide minerals [1], and have almost similar natural floatability in the context of mineral processing. For this reason, the separation of molybdenite from chalcopyrite has always been a challenging task,

Preconcentration of Molybdenum from a Low-grade Primary Mo ...

Jan 05, 2012· 3.1.2. Effect of Pulp pH The flotation response of molybdenite as a function of pulp pH was studied at insitu pH, about 7.9 and, at two other higher levels, 9.3 and 10.0. The pulp pH was modified using appropriate dosages of soda ash. Results of the flotation tests are given in Figure 2.

Minerals | Free Full-Text | Performance Analysis of ...

Molybdenite (MoS 2) and chalcopyrite (CuFeS 2) are known molybdenum and copper-bearing sulphide minerals [], and have almost similar natural floatability in the context of mineral processing.For this reason, the separation of molybdenite from chalcopyrite has always been a challenging task, and efforts are now being carried out to synthesize selective reagents that can depress chalcopyrite ...

The Metal Profile for Molybdenum

Jan 19, 2020· But, in order to extract these intermediary products from molybdenite ore, it must first be crushed and floated to separate copper sulfide from the molybdenite. The resulting molybdenum sulfide (MoS2) is then roasted at between 500-600 C°(932-1112 F°) to produce roasted molybdenite concentrate (MoO3, also referred to as technical molybdenum ...

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. During the molybdenum upgrading process, often ...

Selective flotation separation of molybdenite and ...

Dec 20, 2019· Thus, in the molybdenite mineral processing plant, the effect of Cu-Mo separation is one of the most important indexes due to the analogical floatability of chalcopyrite and molybdenite [5,11]. To date, many approaches have been developed to realize the separation of chalcopyrite and molybdenite in the flotation process.

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

recycling, the depression of chalcopyrite performed well and the pulp potential maintained at a relatively lower level. Moreover, the pulp potential was an available parameter to control the flotation separation of chalcopyrite and molybdenite, which made the method easily applied to industry.

Minerals | Free Full-Text | Study of the Effect of Sodium ...

The optimum concentration of sodium sulfide for separation was 0.03 mol/L, which rejected 83% chalcopyrite and recovered 82% molybdenite in the single mineral flotation. Pulp potential measurements revealed that the dixanthogen and xanthate were decomposed and desorbed, respectively, from the mineral surface in a reducing environment.

separation copper from molybdenite pulp

separation copper from molybdenite pulp. separation copper from molybdenite pulp vvholwierdenl Patent US2070076 Separation of molybdenite from copper Since there was a tendency for molybdenite to float the pulp was A process of ore concentration by flotation for the separation of molybdenite from copper More separation copper from molybdenite pulp

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

and the separation efficiency of 90.03% were achieved in flotation of molybdenite, comprising only 3% of copper minerals. Keywords : Cu-Mo concentrate, Nitrogen, Pulp potential, Separation efficiency, Sodium sulphide 1. Introduction Molybdenite (MoS 2) is naturally a hydrophobic mineral and is the

A novel approach for preferential flotation recovery of ...

Conventional separation of copper sulfide and molybdenite has been achieved with sulfide bulk flotation followed by selective molybdenite flotation with NaHS addition since NaHS works as a ...

(PDF) Study of the Effect of Sodium Sulfide as a Selective ...

The optimum concentration of sodium sulfide for separation was 0.03 mol/L, which rejected 83% chalcopyrite and recovered 82% molybdenite in the single mineral flotation.

separation copper from molybdenite pulp,beacon star rock ...

molybdenite ore flotation machine - johannsoutdoor.nl. separation copper from molybdenite pulp - cingoliavventurait. froth flotation manufacturer for molybdenite ore offers 2435 copper ore concentrate products About 10% of these are copper ore, 1% are separation equipment A wide variety of copper ore concentrate options are available to you, such as is concentrate, non-concentrate.

Effects of Sodium Alginate on the Flotation Separation of ...

In this paper, the effect of sodium alginate (SA) on the flotation separation of molybdenite (MoS2) from chalcopyrite using kerosene as collector was systematically investigated.

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

Effects of pH and pulp potential on the selective separation of Molybdenite from the Sungun Cu-Mo concentrate. International Journal of Mining and Geo-Engineering, 51(2), 147-150. doi: 10.22059/ijmge.2017.220005.594638