Separation Of Molybdenite From Chalcopyrite

Flotation separation of molybdenite from chalcopyrite ...

2020-9-1 · Compared to chalcopyrite, the depressive effect of L-cysteine on molybdenite was negligible in the tested pH range. These results indicated that L-cysteine could potentially be used as a selective depressant to separate chalcopyrite from molybdenite, especially in alkaline region.

Flotation separation of molybdenite from chalcopyrite ...

2021-3-1 · The selective separation of molybdenite from chalcopyrite is difficult because of their similar floatability in the presence of a collector. In this study, rhodanine-3-acetic acid (3-Rd) was first applied in molybdenite flotation as a novel chalcopyrite depressant, and its depression effect and mechanism were systematically investigated by flotation tests, density functional theory (DFT ...

Separation of Molybdenite from Chalcopyrite in the ...

In general, there was a considerable separation window in the pH range of 8–12, indicating that the potential of using ATDT as a selective depressant for chalcopyrite. Taking both separation efficiency and economical cost into consideration, the optimal pH value for the flotation separation of molybdenite from chalcopyrite

Flotation separation of molybdenite from chalcopyrite ...

2020-6-15 · To further confirm that ferrate can selectively depress chalcopyrite, thereby resulting in the separation of chalcopyrite from molybdenite, flotation tests were performed on the mineral mixtures (see Fig. 1(c)). In the presence of ferrate, the trend observed was the same as that of single-mineral flotation, but the flotation recovery of copper was slightly higher than that of single mineral ...

The flotation separation of molybdenite from chalcopyrite ...

2020-9-1 · Hence, the highly efficient separation of chalcopyrite and molybdenite has been a significant concern faced by people and has gained more and more attention . Generally, froth flotation is the most widely used approach to separate valuable minerals from gangue minerals due to their different floatability , , , . It has been found ...

Separation of Molybdenite from Chalcopyrite in the ...

In this paper, 4-amino-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one (ATDT) was synthesized and introduced as a depressant for selective flotation separation of molybdenite from chalcopyrite

The flotation separation of molybdenite from chalcopyrite ...

Further, FT-IR and XPS analysis suggested that PAM-ATU might mainly chemisorb on chalcopyrite via Cu sites on surface through S and N atoms in PAM-ATU polymer. This study indicated that the synthesized PAM-ATU polymer with low molecular weight could be a promising depressant for chalcopyrite in the flotation separation of Cu-Mo ores.

(PDF) Separation of Molybdenite from Chalcopyrite in the ...

2017-8-15 · In this paper, 4-amino-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one (ATDT) was synthesized and introduced as a depressant for selective flotation separation of molybdenite from chalcopyrite.

The Separation of Molybdenite from Pyrite and Chalcopyrite

2007-5-22 · Ideas expressed by some investigators on the regulating action of oxygen (aeration) in the separation of molybdenite from pyrite and chalcopyrite due to their selective oxidation and hence their selective adsorption of collector (ethyl xanthate) were shown to be partially incorrect.

The flotation separation of molybdenite from chalcopyrite ...

2020-4-20 · The flotation separation of molybdenite from chalcopyrite using a polymer depressant and insights to its adsorption Chemical Engineering Journal ( IF 13.273) Pub Date : 2020-04-20, DOI: Zhang Xingrong, Lu Liang, Cao Yijun, Yang Jianbo, Che Wenfang, Liu Jiongtian

Separation of Molybdenite From Chalcopyrite Using New ...

The behaviour of DPS in separation of Cu Mo mixture and mixed Cu Mo concentrate was investigated, and the relations of DPS with chalcopyrite depression and pulp potential were discussed. The results showed that DPS has selective depressing effect on chalcopyrite and galena. When the mixed Cu Mo concentrate containing 15.14% w (Mo), 2.03% w (Cu) and 0.09% w (Pb) was separated at a pulp plt of ...

The Separation of Molybdenite from Pyrite and Chalcopyrite

2007-5-22 · Ideas expressed by some investigators on the regulating action of oxygen (aeration) in the separation of molybdenite from pyrite and chalcopyrite due to their selective oxidation and hence their selective adsorption of collector (ethyl xanthate) were shown to be partially incorrect.

Flotation separation of molybdenite from chalcopyrite

2020-6-15 · Flotation separation of molybdenite from chalcopyrite using an environmentally-efficient depressant L-cysteine and its adsoption mechanism Minerals Engineering ( IF 3.795) Pub Date : 2020-06-15, DOI: 10.1016/j.mineng.2020.106438

(PDF) Flotation Separation of Chalcopyrite and

2020-12-13 · Cyclic voltammograms of (a) chalcopyrite (a1: cathodic scan from −0.2 to −0.8 V, a2: anodic scan from open circuit potential (OCP) to 0.8 V) and (b) molybdenite in the absence and presence of ...

separating molybdenite from chalcopyrite in finland

2020-9-27 · Flotation separation of molybdenite from chalcopyrite ,Sep 01 2020 · Therefore the flotation separation of molybdenite from chalcopyrite should be conducted at pH 8 which is very close to neutral and is economical for CuMo flotation separation in commercial scale Download Download highres image 103KB Download Download full ...As a leading global manufacturer of crushing equipment, milling ...

Depressor in the Separation of Chalcopyrite

2017-3-30 · minerals Article Study of the Effect of Sodium Sulfide as a Selective Depressor in the Separation of Chalcopyrite and Molybdenite Huiqing Peng 1, Di Wu 1,*, Mohamed Abdalla 1,2, Wen Luo 1, Wenya Jiao 1 and Xuexiang Bie 1 1 School of Resource and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; [email protected] (H.P.);

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

In this paper, the effect of sodium alginate (SA) on the flotation separation of molybdenite (MoS 2) from chalcopyrite using kerosene as collector was systematically investigated.The results of single-mineral micro-flotation tests indicated that SA exhibited strong depression on chalcopyrite flotation while it imposed no impact on the floatability of molybdenite.

(PDF) Flotation separation of Cu-Mo sulfides by O ...

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/hydrosulfide.

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

2020-4-28 · 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. The results of single-mineral micro-flotation tests indicated that SA ...

Yin ZHIGANG | PhD Student | PhD | Central South

Separation of Molybdenite from Chalcopyrite in the Presence of Novel Depressant 4-Amino-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one Article Full-text available

(PDF) Flotation Separation of Chalcopyrite and

2020-12-13 · Cyclic voltammograms of (a) chalcopyrite (a1: cathodic scan from −0.2 to −0.8 V, a2: anodic scan from open circuit potential (OCP) to 0.8 V) and (b) molybdenite in the absence and presence of ...

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

Keywords: molybdenite, chalcopyrite, sodium alginate, Cu2+-activation, flotation INTRODUCTION Molybdenite (MoS 2 ) is the primary source of molybdenum (Mo), and approximately half of the

Depressor in the Separation of Chalcopyrite

2017-3-30 · minerals Article Study of the Effect of Sodium Sulfide as a Selective Depressor in the Separation of Chalcopyrite and Molybdenite Huiqing Peng 1, Di Wu 1,*, Mohamed Abdalla 1,2, Wen Luo 1, Wenya Jiao 1 and Xuexiang Bie 1 1 School of Resource and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China; [email protected] (H.P.);

Flotation Separation of Chalcopyrite and Molybdenite ...

2021-5-14 · Title: Flotation Separation of Chalcopyrite and Molybdenite Assisted by Microencapsulation Using Ferrous and Phosphate Ions: Part II. Flotation Authors: Park, Ilhwan Browse this author →KAKEN DB Hong, Seunggwan Browse this author Jeon, Sanghee Browse this author →KAKEN DB ...

Selective flotation of chalcopyrite and molybdenite with ...

Abstract The selective flotation of chalcopyrite (CuFeS2) and molybdenite (MoS2) was studied using surface oxidation treatments (i.e., ozone (O3) and hydrogen peroxide (H2O2)). The results indicated that the oxidation treatments had different effects on the wettability of chalcopyrite and molybdenite. Single mineral flotation results showed that the H2O2 treatment had higher separation ...

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

2021-8-19 · potential in chalcopyrite-molybdenite separation. The potentials were reported with reference to the standard Ag/AgCl electrode. The results demonstrated that the flotation of chalcopyrite was large only when the potential exceeded 100 mV [9-11]. Based on thermodynamics, it is expected that dixanthogen will form at potentials greater than 100 ...

Selective depression of molybdenite using a novel eco ...

The effective separation of molybdenite from chalcopyrite is a challenging job. In this work, an environmental-friendly reagent pectin was investigated as a novel molybdenite depressant in the ...

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

2018-4-4 · Fig. 1. XRD analyses of pure minerals, molybdenite (a) and chalcopyrite (b) 2.2 Flotation To simulate the separation of molybdenum-bearing chalcopyrite flotation concentrate and eliminate the interference of other sulfide ore, mixed minerals were prepared by mixing high-purity chalcopyrite and molybdenite with a mass ratio of 1:1.

Enhancing flotation separation of chalcopyrite and ...

2021-3-18 · Separation effects of sodium polyacrylate (PAAS) and gum Arabic (GA) on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl xanthate (PBX) as collector were ...

The selective leaching and separation of molybdenum

2013-11-1 · The grade of copper in the residue was 21.84%, with a recovery 99.93%. The technology of selective electro-oxidation leaching of molybdenum and recovery of copper from complex molybdenite concentrate is an effective separation method. The diffusion control model can be used to describe the process of leaching of molybdenum.

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