Flotation gangue molybdenite

Flotation Gangue Molybdenite

Molybdenum Ore Processing by Flotation

molybdenite flotation The high grade copper concentrate from the “Sub-A” Cleaner Flotation Cells will contain from 40% to 50% solids. At this point in the flowsheet the copper sulphides are selectively depressed and molybdenite is floated in successive steps until …

Molybdenum Flotation - Froth Flotation (Sulphide & Oxide ...

Molybdenum Flotation (7 replies) Molybdenum is a valuable mineral which could be found in porphyry copper deposits and molybdenum is the main mineral of molybdenite. According to our recent studies we have observed a new mineral of molybdenum with different float-ability which is corresponding to loss of molybdenum recovery.

Copper-Molybdenum ores - Danafloat

The standard flow sheet consists of bulk sulphide flotation of copper and molybdenite while depressing gangue and iron minerals in the rougher and cleaner circuits. Recovery of copper is by standard flotation reagents identified in the copper ore flotation description.

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

Mar 10, 2016 · In flotation pulp temperatures ranging from 10° to 30 °C, the flotation recovery of molybdenite increases with increasing high-boiling component in diesel oil. When pulp temperature is below 10 °C, the flotation recovery of molybdenite is related to the dispersibility of diesel oil, i.e., the proportion of high-boiling and low-boiling component in diesel oil.

Molybdenum Processing

Flotation. 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. The resulting MoS 2 concentrate contains between 85% and 92% MoS 2.

INVESTIGATION OF EFFECTIVE PARAMETERS FOR …

Characteristically, in porphyry copper flotation plants, molybdenum shows lower recovery than copper despite the apparent natural hydrophobicity of molybdenite (Kelebek 1988). In the studied plant, the average of copper recovery is usually 86%, and the average of molybdenum …

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

OPTIMIZATION OF FLOTATION PARAMETERS FOR …

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.

(PDF) Selective flotation separation of molybdenite and ...

Humic acids (HA), a major component of humus or soil, was explored as a selective depressant for molybdenite during the flotation separation of molybdenite and chalcopyrite.

Selective flotation of chalcopyrite and molybdenite with ...

The word “single” indicates the flotation was carried out with pure mineral of chalcopyrite or molybdenite, and “mixed” indicates the flotation was carried out with mixed chalcopyrite and molybdenite (1:1).

The Interaction between Ca2+ and Molybdenite Edges and Its ...

molybdenite as a result of electrostatic interactions and then increase the zeta potential of molybdenite or even reverse the zeta potential from negative to positive [11].Adsorbed calcium ions are attractive to negatively charged fine quartz or other gangue particles, deteriorating molybdenite flotation.

US2664199A - Flotation recovery of molybdenite - Google ...

molybdenite flotation copper iron Prior art date 1952-08-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US306638A Inventor Lyle M Barker Orel E Young

1 Froth Flotation – Fundamental Principles

1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air …

Molybdenum mining in the United States - Wikipedia

The number of mines producing byproduct molybdenum at any given time depends on the price of molybdenum and the amount of molybdenite in the ore. Both copper sulfides and molybdenite are separated from the gangue by froth flotation.

Electrolysis Oxidation of Chalcopyrite and Molybdenite for ...

On the other hand, molybdenite surface keep hydrophobic since its difficulty of oxidation and it is difficult to stay molybdenum oxide on the surface due to its soluble property. These results...

The Interaction between Ca2+ and Molybdenite Edges and Its ...

the presence of fine gangue minerals. ... Lucay et al. [16] also indicated the depression role of Ca2+ in molybdenite flotation at slightly alkaline pH. Hirajima et al. [17] studied the effect of Mg2+ and Ca2+ on the floatability of chalcopyrite and molybdenite.

US4523948A - Roasting of molybdenite concentrates ...

A method is provided for treating molybdenum concentrates in a roasting furnace having a first roasting zone and at least a second roasting zone, the concentrate containing residual flotation oil...

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