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Molybdenum Flotation Selectivity

Recent progress on research of molybdenite flotation A

Recent Progress On Research Of Molybdenite Flotation A

Sep 01, 2021 Selective depression effect in flotation separation of copper-molybdenum sulfides using 2,3-disulfanylbutanedioic acid Trans Nonferrous Met Soc China (English Ed) , 25 ( 2015 ) , pp. 3126 - 3132 , 10.1016/S1003-6326(15)63942-5

A High Effective Collector For Flotation Of Molybdenum

A High Effective Collector For Flotation Of Molybdenum

YX091 is an effective collector for the flotation of copper, gold, silver, zinc, molybdenum sulfides. The collectivity of YX091 to pyrites is weak. But its selectivity to copper, gold, silver ores is good. In the flotation process, YX091 displays strong collectivity, good selectivity, low dosage and some frothing property. Specification. More.

US2608298A Selective recovery of molybdenum sulfide

Us2608298a Selective Recovery Of Molybdenum Sulfide

US2608298A US19424A US1942448A US2608298A US 2608298 A US2608298 A US 2608298A US 19424 A US19424 A US 19424A US 1942448 A US1942448 A US 1942448A US 2608298 A US2608298 A US 2608298A Authority US United States Prior art keywords flotation concentrate molybdenite sulfides metals Prior art date 1948-04-06 Legal status (The legal status is an

Copper Molybdenum Flotation depressant Barium

Copper Molybdenum Flotation Depressant Barium

Molybdenum will float naturally with the copper but can be crowded in the froth by the copper mineralization and use of a moly collector (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) enhances its floatability. Further, because optimum moly flotation pH is at 7-8 while optimum copper selectivity is typically in the 9 ...

CopperMolybdenum ores

Coppermolybdenum Ores

Copper-Molybdenum ores Molybdenite (MoS 2) is the predominant economic molybdenum mineral. While naturally very hydrophobic and can effectively be ... Flotation is conducted at high pH levels often times greater than ... copper selectivity is typically in the 9

Selective depression effect in flotation separation of

Selective Depression Effect In Flotation Separation Of

2,3-disulfanylbutanedioic acid (DMSA) was found to be a selective depressant in the flotation separation of copper- molybdenum sulfides. The flotation results

IMPROVEMENT OF THE SELECTION TECHNOLOGY OF

Improvement Of The Selection Technology Of

The technological scheme of selective flotation in-cluded desorption of the collective concentrate by steaming with sodium sulphide at 85-90C, washing, main, control molybdenum flotation and six purifica-tion of molybdenum concentrate. In all operations of selective flotation the pH of medium was 8,5-9,0. kero-

INVESTIGATION OF EFFECTIVE PARAMETERS FOR

Investigation Of Effective Parameters For

subjects the bulk copper-molybdenum sulphide concentrate to a selective flotation technique to separate molybdenite from copper sulphide. Reagents Reagent programs applied for the treatment of porphyry copper and copper-molybdenite ores are relatively simple, and usually include lime as a modifier,

Effects of pH and pulp potential on selective separation

Effects Of Ph And Pulp Potential On Selective Separation

proposed that an appropriate pulp potential in selective flotation of Mo from Cu-MO concentrate should be lower than -400mV 8, 11, 16. Therefore, Na 2 S addition was made in a stepwise procedure during the flotation experiments, including the addition in the flotation conditioning stage and 4 minutes lasting frothing.

Analysis of technological schemes and substantiation of

Analysis Of Technological Schemes And Substantiation Of

A comprehensive review of the principal process flowsheets of flotation beneficiation of porphyry copper ores is given in the paper along with the factors, influencing upon the beneficiation indicators, including copper and molybdenum extraction in the bulk and selective flotation cycles, in which the main problem is connected with selective separation of copper and

Molybdenite flotation from coppermolybdenum

Molybdenite Flotation From Coppermolybdenum

copper sulfide minerals and the selective flotation of molybdenite from copper/molybdenum concentrates. The results of this research program were quite successful, and the University of Utah is now seeking patent protection for this flotation technology (Miller, Ye, and Jang, 1990). The utilization of ozone in the flotation of sulfide minerals

PDF Effect of sodium sulfite on floatability of

Pdf Effect Of Sodium Sulfite On Floatability Of

Sodium hydrogen sulfide (NaHS) is commonly used as a copper depressant in the selective flotation of copper and molybdenum ores. However, the process is facing health and safety issues because NaHS readily yields toxic hydrogen sulfide gas (H2S) under acidic conditions. In this study, Na2SO3 was proposed as an alternative copper depressant. The effect of Na2SO3

FLOTATION PROCESSING OF COPPERMOLYBDENUM

Flotation Processing Of Coppermolybdenum

The selectivity of copper recovery and loss of copper to tailings were compared. The best results were obtained when using collecting agents ... supplied to the main and control copper-molybdenum flotation. Liquid glass was supplied to the collective copper and molybdenum concentrate refinery.

Recovery of molybdenum and copper from porphyry

Recovery Of Molybdenum And Copper From Porphyry

selectivity for molybdenite, providing a higher molybdenum recovery under low reagent dosage. Moreover, compared with bulk flotation approach, the iso-flotability flotation approach using transformer oil as a collector can obtain superior Mo recovery

Flotation separation of molybdenite from

Flotation Separation Of Molybdenite From

Jun 15, 2020 Molybdenum minerals are usually associated with copper minerals. The separation of copper-molybdenum sulfide ore depends on the depressant type. Various organic and inorganic depressants have been used for selective depression of the targeted mineral during copper-molybdenum flotation separation (Bulatovic, 2007, Chen et al., 2013, Li et al., 2015).

Effect of Sodium Metabisulfite on Selective Flotation

Effect Of Sodium Metabisulfite On Selective Flotation

Dec 07, 2021 The microflotation of mixed minerals showed that MBS treatment could be used as a selective depressant of chalcopyrite in the selective flotation of chalcopyrite and molybdenite. Furthermore, the addition of diesel oil or kerosene as a molybdenite collector could significantly improve the separation selectivity (i.e., Newton efficiency) of flotation of chalcopyrite and

Selective depression effect in flotation separation of

Selective Depression Effect In Flotation Separation Of

Sep 01, 2015 Abstract. 2,3-disulfanylbutanedioic acid (DMSA) was found to be a selective depressant in the flotation separation of copper molybdenum sulfides. The flotation results suggest that a low dosage of DMSA has a strong depression effect on chalcopyrite in the pH range between 4 and 12. At pH 6, the recoveries of molybdenum are up to 85%, 75%, and

PDF Selective separation of coppermolybdenum

Pdf Selective Separation Of Coppermolybdenum

Microflotation tests on chalcopyrite-molybdenite mixtures proved that HA could selectively depress the molybdenite flotation without significantly affecting the flotation of chalcopyrite.

Estimation of selectivity index and separation

Estimation Of Selectivity Index And Separation

Estimation of selectivity index and separation ... flotation amended the recovery of desire minerals such as ... sulfide copper ore commonly contained molybdenum as a

Effects of pH and pulp potential on selective separation

Effects Of Ph And Pulp Potential On Selective Separation

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 S and NaSH on flotation and depression behavior of sulphide minerals.

Recovering Moly from Copper Oxide and Sulfide Froth

Recovering Moly From Copper Oxide And Sulfide Froth

Additionally, since the pH optimum of float is 7-8 molybdenum optimum selectivity while copper is typically in a pH range of 9-11, the use of a flotation collector bulk

Analysis of technological schemes and substantiation of

Analysis Of Technological Schemes And Substantiation Of

One of the very promising ways is an application of complex regents, which increase the flotation selectivity for copper, molybdenum and iron sulfides, probably in combination with existing reagent regimes on the porphyry copper ore processing plants too.

Method of flotation of copper molybdenum ores

Method Of Flotation Of Copper Molybdenum Ores

The bulk concentrate is treated with oxygen at a temperature of 60-95C, a pressure of 0.05-1.0 MPa and pH11,0 selective flotation of copper and molybdenum concentrate emitting molybdenum concentrate with the separation of molybdenum in the foam product is carried out at a pH of 6.0-8.0 (RU, patent No. 2038859, CL B03D 1/02, 1990).

Figure 11 from Selective depression effect in flotation

Figure 11 From Selective Depression Effect In Flotation

articleLi2015SelectiveDE, titleSelective depression effect in flotation separation of coppermolybdenum sulfides using 2,3-disulfanylbutanedioic acid, authorMing-yang Li and D. Wei and Yanbai Shen and Wen-gang Liu and Shuling Gao and Guang-quan Liang, journalTransactions of Nonferrous Metals Society of China, year2015, volume ...

Molybdenum Processing IMOA

Molybdenum Processing Imoa

The milled ore/gangue powder is mixed with a liquid and aerated in the flotation step. The less dense ore rises in the froth to be collected, while the gangue sinks to be discarded. Flotation separates the metallic minerals from the gangue this way and in the case of copper/ molybdenum ores separates molybdenite from copper sulphide.

PDF Flotation of molybdate oxyanions from dilute

Pdf Flotation Of Molybdate Oxyanions From Dilute

Selective separation from phosphates, arsenates and silicates Y.-C. Zhao, A.I. Zouboulis *, K.A. Marls Chemical Technology Division, Department of Chemistry, Aristotle University, GR-540 06 Thessaloniki, Greece Received 26 November 1995 accepted 27 January 1996 Abstract Adsorbing colloid flotation was found to be an efficient method for ...

Consumption Mechanism of Sodium Sulfide in Flotation

Consumption Mechanism Of Sodium Sulfide In Flotation

The mechanism of large consumption for sodium sulfide was preliminary studied in copper-molybdenum flotation separation. Under the different experiment conditions dynamic monitoring approach was used to quickly measure the change of sulfide ion concentration in sodium sulfide solution by sulfide ionic selective electrode.

Differential flotation reagent for molybdenum separation

Differential Flotation Reagent For Molybdenum Separation

A dry differential flotation reagent for molybdenum-bearing ore is disclosed comprising from about 1 to about 30 percent by weight of NaSH, 0 to 20 percent by weight of NaOH, 60 to 90 percent by weight of a mixture of sodium thiophosphates comprising, as major components thereof, Na 3 PS 4, Na 3 PS 3 O, Na 3 PS 2 O 2, and Na 3 PO 3 S, with Na 3 PS 4 further

Selectivity index and separation efficiency prediction in

Selectivity Index And Separation Efficiency Prediction In

Feb 19, 2021 Allahkarami E, Nuri OS, Abdollahzadeh A, Rezai B, Chegini M (2016) Estimation of copper and molybdenum grades and recoveries in the industrial flotation plant using the artificial neural network. International Journal of Nonferrous Metallurgy

Artificial Neural Network Flotation Separation

Artificial Neural Network Flotation Separation

Dec 09, 2021 Keywords Artificial Neural Network, Flotation, separation efficiency, Selectivity index, estimation. 1- Introduction. The froth flotation is a separation method that is used for selective separation of hydrophobic minerals from hydrophilic ones. It is one of the most important methods for beneficiation of sulfide ores.

Wemco 11 Inert Gas Optimised for molybdenumcopper

Wemco 11 Inert Gas Optimised For Molybdenumcopper

The ideal flotation machine for your mining operations will deliver high recovery and grade with easier start-up, simpler operation, lower reagent consumption, longer mechanism life and less required maintenance. The WEMCO 11 Inert Gas provides such a solution, that is specifically tailored to molybdenum/copper separation.

PDF Selective flotation of chalcopyrite and molybdenite

Pdf Selective Flotation Of Chalcopyrite And Molybdenite

Selective flotation of chalcopyrite and molybdenite with plasma pre-treatment. Download. Related Papers. Effect of microwave system location on floatability of chalcopyrite and pyrite in a copper ore processing circuit. By Ahmad Hassanzadeh.

Flotation Solutions Maximizing Mineral Recovery Ecolab

Flotation Solutions Maximizing Mineral Recovery Ecolab

Our range of flotation solutions include frother and collector programs for coal, copper, molybdenum, phosphate, potash, and more. All of our solutions address your process holistically, helping you optimize your flotation circuit to achieve greater selectivity, recovery, grade, and ultimately, cost performance.

Fundamental Study on Selective Flocculationflotation of

Fundamental Study On Selective Flocculationflotation Of

Fundamental Study on Selective Flocculation-flotation of Ultrafine Molybdenite ParticlesCN

Modified alcohol frothers for froth flotation of sulfide

Modified Alcohol Frothers For Froth Flotation Of Sulfide

Just as important, however, is that selectivity for molybdenum flotation is improved also. Note that at approximately the same molybdenum recoveries of 68.5% and 68.7%, the cumulative concentrate assay for MIBC was 2.05% molybdenum and 2.52% molybdenum for TMPD mono-iso-butyrate. EXAMPLE 7