منزل •molybdenum flotation water

molybdenum flotation water

  • Effect of modified water glass on flotation of molybdenum ore

    The effects of ordinary water glass and modified water glass on the flotation of molybdenum ore were investigated. The results are shown in Tables 3 and 4. Comparing the flotation indexes of the two closed-circuit tests, it can be seen that when ordinary water glass is used, the grade of molybdenum concentrate is 48.2%, the recovery rate is 90 ...

  • process molybdenum flotation

    Estimation of Copper and Molybdenum Grades and … · industrial flotation process. In this study, for the modeling problem, pH, collector, frother and F-Oil concentration, size percentage of feed passing 75 microns, moisture content in feed, solid percentage, grade of copper, molybdenum and iron in feed were considered as inputs to the network.

  • Flotation Solutions - Maximizing Mineral Recovery | Ecolab

    Nalco Water offers a diverse range of froth flotation and collector programs to achieve the right balance of kinetics, strength, stability, and selectivity. By implementing a customized solution, Nalco Water can help you improve copper and / or molybdenum recovery and increase the profitability of your operations.

  • 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.

  • Effects of aluminosilicate minerals on copper–molybdenum ...

    Effects of aluminosilicate minerals on copper–molybdenum flotation from Sarcheshmeh porphyry ores ... Water recovery in different dextrin dosages was shown in Table 3. It can be seen that water recovery ascended when the dex- trin dosage increased to 200 g/ton, but dosages greater than 200 g/ ton resulted in water recovery decreases.

  • Recent progress on research of molybdenite flotation: A ...

    Molybdenum is an important alloy element for metallurgical industry because of its high temperature stability. As the major mineral reserve for molybdenum, molybdenite (MoS 2) is commonly found in porphyry copper deposits.Molybdenite is naturally floatable and can be separated from copper sulfide mineral using froth flotation.

  • Selection of an Appropriate Depressant in Flotation ...

    As the flotation tests on individual minerals showed that sodium hexametaphosphate inhibited molybdenum oxide, which may be due to the physical adsorption of sodium hexametaphosphate on the surface of molybdenum oxide, Spectrum (3) shows the absorption bands at 2840 cm −1 and 2930 cm −1, which were the characteristic of –CH 2 – and ...

  • Copper–molybdenum ores flotation in sea water ...

    Fig. 1, Fig. 2 show flotation results obtained with two different chalcopyritic Cu–Mo ore samples floated in fresh water and sea water. Molybdenite flotation in sea water was depressed in alkaline solutions when pH was higher than 9.0–9.5. At the same time, Cu recovery was only slightly reduced and was not significantly affected by pH.

  • MOLYBDENUM, FERROMOLYBDENUM, AND AMMONIUM …

    MOLYBDENUM, FERROMOLYBDENUM, AND AMMONIUM MOLYBDATE ... which are not shown, include crushing, grinding, and flotation of either primary or copper ores. Molybdenite is recovered from either primary molybdenite or copper sulfide ore by flotation, after the ore has been crushed and ground to a suitable size. ... Water Pure Molybdic Oxide ...

  • Flotation Solutions - Maximizing Mineral Recovery | Nalco ...

    Nalco Water offers a diverse range of froth flotation and collector programs to achieve the right balance of kinetics, strength, stability, and selectivity. By implementing a customized solution, Nalco Water can help you improve copper and / or molybdenum recovery and increase the profitability of your operations.

  • The effect of sodium hydrosulfide on molybdenite flotation ...

    Abstract Seawater is used in copper-molybdenum flotation plants when fresh water resources are limited. To minimize the negative effect of process seawater on molybdenite flotation, diluting process seawater with fresh water is a common practice. This study was designed to identify whether the dilution of process seawater in copper-molybdenum flotation plants benefits molybdenite flotation ...

  • The effect of sodium hydrosulfide on molybdenite flotation ...

    Seawater is used in copper-molybdenum flotation plants when fresh water resources are limited. To minimize the negative effect of process seawater on molybdenite flotation, diluting process seawater with fresh water is a common practice. This study was designed to identify whether the dilution of process seawater in copper-molybdenum flotation ...

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

    minerals Article The Interaction between Ca2+ and Molybdenite Edges and Its Effect on Molybdenum Flotation He Wan 1,2,*, Wei Yang 1,*, Weicheng Cao 2, Tingshu He 1, Yanying Liu 2, Jianbo Yang 3, Lin Guo 3 and Yongjun Peng 4 1 College of Materials and Mineral Resources, Xi'an University of Architecture and Technology, Xi'an 710055, China; [email protected]

  • Mineralogical Prediction on the Flotation Behavior of ...

    Although Alvarez and Castro and Castro showed that the use of seawater does not affect the flotation of pure chalcopyrite, various studies have shown that seawater contains various alkali metals ions that influence the flotation behavior of copper and molybdenum minerals [14,15,16,17,18,19,20,21,22,23,24,25].

  • US3837489A - Molybdenum disulfide flotation anti ...

    An anti and process for the separation of molybdenum values associated with predominantly copper ores of the sulfide type. The anti, which is primarily directed to laundering or cleaning stages in the moly cycle, consists of a utilization of 1-60 ppm of a polyoxyethylene glycol ester in a hydrocarbon diluent per ton of ore. The oxyethylene fraction has a value of about 100-2,000 and an ...

  • Molybdenum Flotation - Mineral Processing & Metallurgy

    A Molybdenum Flotation case study with about 6% of the molybdenum contained in the feed is present as an oxide form and about 90% of this is not recovered to the flotation concentrate. Recovery of molybdenum into the rougher concentrate varied between 90 to 95% at a concentrate grade of 2.5 to 3.7% molybdenum. The rougher concentrate can be upgraded to a marketable grade molybdenum …

  • Copper, Molybdenum, Nickel and Zinc Processing | Ecolab

    Nalco Water offers a wide range of frothers and collectors that allow you to optimize your conditions for optimal flotation performance. By choosing the appropriate partner, you can significantly improve recovery and selectivity in your operations, whether you are recovering copper, molybdenum, or both.

  • Flotation: The Past, Present and Future of Mineral ...

    Hatch provides detailed engineering to enable the Sierra Gorda molybdenum flotation plant in Chile to integrate smoothly into the main concentrator plant. (Photo: Hatch) ... a spokesperson for Anglo said CPF is a key technology in closing the loop on its water usage too — an initial step toward the company's goal of dry processing.

  • (PDF) A study of mechanisms affecting molybdenite recovery ...

    A study of mechanisms affecting molybdenite recovery in a bulk copper/molybdenum flotation circuit. International Journal of Mineral Processing, 2009. William Skinner. Massimiliano Zanin. Stephen Grano. I. Ametov. Liqun ZHOU. Download PDF. Download Full PDF Package. This paper.

  • The Effects of Water Recycling on Flotation at a North ...

    The use of seawater results in lower molybdenum recovery due to calcium and magnesium hydroxyl complexes [6]. Studies on the impact of sewage effluent and other waste streams with high organic concentrations have shown that dissolved and suspended organics lower flotation rates and cause frothing problems in different mineral processing ...

  • The depression of molybdenite flotation by sodium ...

    The flotation of molybdenite at 106 and 53 µm without and with the addition of MBS was carried out in DI water first. The MBS concentration varied from 0 to 2 mmol/L in line with the previous study to depress pyrite in copper and molybdenum flotation (Mu and Peng, 2019).Fig. 1 (a) shows the flotation recoveries of 106 µm molybdenite. Without the addition of MBS, molybdenite displayed a …

  • Molybdenite flotation from copper/molybdenum …

    selective flotation of resinite macerals from other coal macerals. In addition, ozone is commonly used in waste water treatment to remove organic matter as described in the literature (Murphy and Orr, 1975). Experimental Two different bulk copper/molybdenum concentrates were selected for this study, one from the Phelps Dodge Morenci

  • Molybdenum and its compounds - Wiley Online Library

    Pure molybdenum is extracted from ores by means of a flotation process. In this process the molybdenum is first obtained as the trioxide. Molybdenum trioxide is the main com-mercial product. It is the starting material for the production of molybdenum-steel and all other molybdenum compounds. Powdered molybdenum metal is produced by reduction

  • Molybdenum Ore Processing by Flotation

    This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue.It is also basically sound for many other friable sulphide ores, such as antimony, silver and even some lead ores. The basic ideas stressed in this moly flotation flowsheet are the importance of simplicity and the quick removal ...

  • Froth Flotation (Sulphide & Oxide)

    The copper recovery is by standard flotation reagents identified in the description of the copper mineral flotation. The naturally float molybdenum with copper but can be congested in the by the mineralization of copper and molybdenum collector use (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) improves its buoyancy.

  • Molybdenite flotation - The United States of America as ...

    A 750-gram sample of chalcocite-chalcopyrite concentrate containing, in percent, 20.0 copper, 4.9 molybdenum, and 26.3 iron, was treated according to the procedure described in example 1, except (1) water from the molybdenite flotation circuit was used for pulping instead of tap water, (2) dosages of 8.0 pounds of sodium hydrosulfide per ton of ...