flotation gangue molybdenite
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flotation gangue molybdenite

Review of the flotation of molybdenite. Part I: Surface

3/10/2016· The degree of crystallization is one of the relevant factors affecting molybdenite flotation (Hernlund, 1961, Shirley, 1981, Podobnik and Shirley, 1982, Zanin et al., 2009). Well crystallized molybdenite is considered fast floating, while almost amorphous variety is either slow floating or non-floating (Hernlund, 1961).

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Process of recovering molybdenite by froth flotation

For the separation of molybdenite from a material containing readily floatable gangue materials, such as those of the talcose, chloritic, or micaceous types, a somewhat modified procedure is followed, in which the aged material is first subjected to a flotation treatment to float the gangue away from the sulphide minerals, including molybdenite, while maintaining the pulp on the acid or faintly alkaline side, i. e., at a pH below 8, and the tailings from that flotation

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Flotation Circuit Design for Adanac Moly Corp using a

True flotation of non-sulphide gangue (NSG) only occurs due to attachment to molybdenite; the very low Mo grade of the ore results in very low NSG R max values. As a comparison, copper porphyry ore may exhibit NSG R max of 4 to 8%. The molybdenite recovery was generally poor under the standard size conditions with P 80 of 210 microns and “m” of 0.7,

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Separation of talc and molybdenite: challenges and

11/1/2019· Talc is one of the most problematic hydrophobic gangue minerals that occur in sulfide ores such as molybdenite and Pt-bearing nickel sulfide ores. Owing to its strong natural hydrophobicity, talc can easily float into the sulfide mineral concentrates, which not only lowers concentrate grade but also adversely affects subsequent smelting.

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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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(PDF) Selective flotation separation of molybdenite and

In the single mineral flotation tests, HA has shown good depression ability to molybdenite over the entire pH range tested from pH 3-11, while the floatability of talc was only affected by HA under...

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INVESTIGATION OF EFFECTIVE PARAMETERS FOR MOLYBDENITE

Interactions with gangue minerals Flotation schemes for the separation of molybdenite from ores are based on the inherent natural flotation of molybdenite. Chander and Fuerstenau (1972) undertook a detailed investigation to elucidate the factors that affect the surface properties of MoS 2 which in turn govern the natural flotation of molybdenite.

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Flotation Circuit Design for Adanac Moly Corp using a

True flotation of non-sulphide gangue (NSG) only occurs due to attachment to molybdenite; the very low Mo grade of the ore results in very low NSG R max values. As a comparison, copper porphyry ore may exhibit NSG R max of 4 to 8%. The molybdenite recovery was generally poor under the standard size conditions with P 80 of 210 microns and “m” of 0.7,

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The Interaction between Ca2+ and Molybdenite Edges and Its

molybdenite flotation. While contributing the slime coating induced by calcium and magnesium ions to the depression of molybdenite flotation, Zanin et al. also measured contact angles on coarse molybdenite particles (+150 μm) in the proximity of their faces and edges after conditioning

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<Original Papers>Studies on the Flotation of

In the rougher flotation of molybdenite ore, high concentrate grade and recovery can be obtained by selecting the proper ratio of silica to soda and suitable concentration of sodium silicate to be added. Sodium silicate having the ratio of silica to soda 2 : 1 shows the most effective depressing action on gangue minerals.

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INVESTIGATION OF EFFECTIVE PARAMETERS FOR MOLYBDENITE

Interactions with gangue minerals Flotation schemes for the separation of molybdenite from ores are based on the inherent natural flotation of molybdenite. Chander and Fuerstenau (1972) undertook a detailed investigation to elucidate the factors that affect the surface properties of MoS 2 which in turn govern the natural flotation of molybdenite.

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(PDF) Selective flotation separation of molybdenite and

In the single mineral flotation tests, HA has shown good depression ability to molybdenite over the entire pH range tested from pH 3-11, while the floatability of talc was only affected by HA under...

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OPTIMIZATION OF FLOTATION PARAMETERS FOR

flotation of molybdenite ore. Meanwhile, the kinetics of batch flotation behavior of the molybdenum ore was obtained by applying the first order and second order kinetics models. The results indicated that the flotation rate constant responds to second-order kinetics model with correlation coefficient of 0.99. At the

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APPLICATION OF MODIFIED QUEBRACHO EXTRACTS TO THE

When the flotation tails are treated by under temperatures between 260"C and 320"C, the dextrin is destroyed and molybdenite suffers a partia) oxidation. Afterward, hydrocarbons and a frother are used to recover a molybdenite concentrate.

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A study of the treatment of some Arizona molybdenite ores

flotation methods, or in the event that this was not found feasible, to find a reagent combination that would permit tho. gangue slime, or activating tho molybdenite. She qualitative results of most .of the teats, as indicated in Table 1, wore negative. General conclusions

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Yongjun PENG Professor The University of Queensland

Kerosene is widely used as a collector in molybdenite flotation. However, it can only adsorb on molybdenite faces but not on molybdenite edges, which is unfavorable for the flotation of fine...

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NEWCREST’S INDUSTRY FIRST APPLICATION Eriez Flotation

gangue-mineral composite particles as the primary driver for copper losses from the flotation circuit, accounting for over 75% of the contained copper grade in tailings. Figure 2. AMTEL Copper deportment in rougher scavenger tails Since flotation is a surface

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