the role of surfactants in the flotation of molybdenite at climax

  • The role of surfactants in the flotation of molybdenite at ...

    高达12%返现 · The use of petroleum hydrocarbon as a collector for molybdenum sulfide improved metal recovery but necessitated the investigation of surfactants to produce a suitable froth for flotation at the Climax, Colorado mill of American Metal Climax, Inc. Up to December, 1958, 346 surfactants had been tested and evaluated. A sulfated monoglyceride of coconut oil is presently employed at Climax.

  • Journal of the American Oil Chemists' Society: Vol 47, No 11

    The role of surfactants in the flotation of molybdenite at climax. R. A. Ronzio, Pages: 504A; First Published: 01 November 1970; Abstract; PDF; Request permissions; no. First world congress of the international society of fat research held in Chicago. Pages:

  • (PDF) Roles of surfactants in flotation deinking

    of surfactants. Below the cloud point, the surfactant molecules can be dissolved in water. As temperature begins to rise, molecules start to associate and come closer together and the surfactant...

  • Nanobubble-enhanced flotation of ultrafine molybdenite and ...

    Dec 11, 2021 · Flotation tests of molybdenite with different size fractions were conducted in an XFG-type flotation machine (Jilin Exploration Machinery Factory, China) at a stirring speed of 1992 rpm. In each flotation test, 2 g of the molybdenite sample and 30 mL of deionized water were introduced into the flotation cell to form a slurry, and the pulp pH ...

  • (PDF) SURFACE PROPERTIES AND FLOATABILITY OF MOLYBDENITE

    The heterogeneity of the face is responsible for the pH effect on molybdenite flotation and the low floatability of molybdenite fine particles. In addition, it causes adsorption of calcium ions on...

  • Flotation separation of molybdenite from talc using a new ...

    Combined with the results of UV analysis, the adsorption density of ASKG on the molybdenite surface of each group of experiments was obtained by subtraction method. The results are plotted in Fig. 12. Download : Download high-res image (150KB) Download : Download full-size image; Fig. 11. Adsorption behavior of SBX on molybdenite surface at pH 9.0.

  • Flotation mechanisms of molybdenite fines by neutral oils ...

    Jan 03, 2018 · 高达12%返现 · The results of the flotation test show that at pH 2−11, the floatability of molybdenite fines in the presence of transformer oil is markedly better than that in the presence of kerosene and diesel oil. The addition of transformer oil, which enhances the floatability of molybdenite fines, promotes the aggregation of molybdenite particles.

  • Effect of Sodium Metabisulfite on Selective Flotation of ...

    Dec 07, 2021 · Sodium metabisulfite (MBS) was used in this study for selective flotation of chalcopyrite and molybdenite. Microflotation tests of single and mixed minerals were performed to assess the floatability of chalcopyrite and molybdenite. The results of microflotation of single minerals showed that MBS treatment significantly depressed the floatability of chalcopyrite and slightly reduced the ...

  • A Novel Method for Improving Low-Temperature Flotation ...

    Oct 04, 2019 · Nonpolar hydrocarbon oil (NHO) is one of the most extensively used collectors in the flotation of molybdenite due to its excellent selectivity. However, NHO has low sensibility at pulp temperature. At low temperatures (<283 K), although more kerosene is used, the recovery of molybdenite flotation is still lower than at room temperature. In this study, magnetizing treatment,

  • Copper Moly Separation Depressant Roles - 911 Metallurgist

    Oct 09, 2018 · Copper Moly Separation Depressant Roles. Bulk and differential laboratory flotation tests have been carried out using a synthetic mixture of chalcopyrite and molybdenum ore. In addition to boiling and roasting, six different depressants are tested so that the best conditions of separation can be identified. These reagents include sodium cyanide ...

  • (PDF) Insights into Selection of the Auxiliary Collector ...

    May 17, 2021 · The role of surfactants in the flotation of molybdenite at climax. J. Am. ... In molybdenite floatation system, the floatation experimental results show that

  • Flotation of molybdenite in the presence of ...

    tation of molybdenite was at a maximum in the pH range of 5.5~6.5, which was con-sistent with this experiments. In acidic solution, the poor separation efficiency was attributed to MoO 3 deriving from oxidation of molybdenite surface. However, in alka-line solution, adsorption of MoO 4 2 - and OH to molybdenite surface caused lower re-

  • Flotation of molybdenite in the presence of ...

    RONZIO R., 1970. The role of surfactants in the flotation of molybdenite at climax. Journal of the American Oil Chemists Society, 47, 504A-504A. RUBIO J., CAPPONI F., RODRIGUES R.T., MATIOLO E., 2007. Enhanced flotation of sulfide fines using the emulsified oil extender technique. International Journal of Mineral Processing, 84, 41-50.

  • (PDF) SURFACE PROPERTIES AND FLOATABILITY OF MOLYBDENITE

    These precipitated Mg(OH)2 and CaCO3 particles on the molybdenite surfaces play an important role in inhibiting the flotation of molybdenite in the simulated sea water. View Show abstract

  • Flotation mechanisms of molybdenite fines by neutral oils ...

    Jan 03, 2018 · The flotation mechanisms of molybdenite fines by neutral oils were investigated through microflotation test, turbidity measurements, infrared spectroscopy, and interfacial interaction calculations. The results of the flotation test show that at pH 2−11, the floatability of molybdenite fines in the presence of transformer oil is markedly better than that in the presence of kerosene and diesel ...

  • Column Flotation - SGS

    Today column flotation has become . an accepted means of froth flotation for a fairly broad range of applications, in particular the cleaning of sulfides (copper, zinc, lead and molybdenite) and the flotation of iron ore, phosphate and coal. Flotation columns differ dramatically from mechanical flotation machines in . several ways:

  • Henderson Molybdenum Mine | Articles | Colorado Encyclopedia

    Located about nine miles west of Empire, the Henderson Molybdenum Mine was developed by American Metal Climax (AMAX) and opened in 1976 to work one of the world’s largest known molybdenum deposits.A conveyor belt for transporting ore connects the mine to a separate mill on the western side of the Continental Divide, whose location was chosen because of space constraints and water-quality ...

  • Copper Moly Separation Depressant Roles - 911 Metallurgist

    Oct 09, 2018 · Copper Moly Separation Depressant Roles. Bulk and differential laboratory flotation tests have been carried out using a synthetic mixture of chalcopyrite and molybdenum ore. In addition to boiling and roasting, six different depressants are tested so that the best conditions of separation can be identified. These reagents include sodium cyanide ...

  • Restarting Climax: The who, when, and why

    Jun 01, 2006 · Moly ore contains the mineral molybdenite, or molybdenum disulfide (MoS2), usually in quantities of less than one percent. After mining, the finely ground ore goes through a flotation-separation process that produces an 85-percent molybdenite concentrate.

  • Climax Mine Moly – Western Mining History

    Rocks. Name: Granite Role: Host Description: stocks, dikes, and sheets of medium-grained granite and pegmatite, and fine- to medium-grained equigranular granite, all emplaced in three phases Age Type: Host Rock Age Young: Mesoproterozoic Name: Granitoid Role: Host Description: Composite Climax Stock was introduced as multiple (5) pulses over the period from 33 and 18 Ma.

  • The Inadvertent Activation of Silicate Minerals Flotation ...

    Nov 22, 2021 · The Wushan Operation has been studied as a case study, particularly relevant to the copper-molybdenum separation circuit, in which efforts have been made to improve the quality of the molybdenum concentrate through diagnostic analysis. A key finding has been the appearance of coarser silicate minerals in the molybdenum concentrate due to their inadvertent activation in flotation.

  • Electrum - an overview | ScienceDirect Topics

    Many Cu deposits also contain molybdenite. Others contain pentlandite [(Ni,Fe) 9 S 8], sphalerite (ZnS), or galena (PbS). These can all be separated from Cu minerals by selective flotation. Molybdenite flotation is discussed in Chapter 21. The flotation of sphalerite, galena, and Ni and Cu oxides is discussed by Biswas and Davenport (1994).

  • 钟宏(中南大学化学化工学院化工冶金研究所所长)_百度百科

    钟宏,男,1961年3月出生,浙江龙泉人,畲族,博士,教授,博士生导师,享受国务院政府特殊津贴专家。现任矿冶工程化学国家级虚拟仿真实验教学中心主任,锰资源高效清洁利用湖南省重点实验室主任,中南大学化学化工学院化工冶金研究所所长,兼任中国化工学会理事、中国化学会理事、中国 ...

  • Climax Mine – Western Mining History

    Comment (Production): Total production from 1918 to 1991 is about 470 million tons of ore at an average grade of 0.22% molybdenum. The mine was placed on a care-and-maintenance status in 1995. In April 2006, the company announced plans to re-open the mine in 2009.

  • Use of “oily bubbles” and dispersants in flotation of ...

    The results show that molybdenite recovery increases when kerosene is supplied on the surface of bubbles which was particularly important in the flotation of molybdenite at pH > 9.5 in seawater.

  • The Interaction between Ca2+ and Molybdenite Edges and

    flotation with a high molybdenite recovery in the absence of Ca2+ in the two cases. Figure 1. X-ray diffraction (XRD) analysis of the enriched molybdenite sample. Diesel oil was used as molybdenite collector in this study without emulsification. The addition rate of diesel was 180 g/t in AM flotation and varied in PM flotation.

  • Zeta potential of molybdenite particle as a function of ...

    These precipitated Mg(OH)2 and CaCO3 particles on the molybdenite surfaces play an important role in inhibiting the flotation of molybdenite in the simulated sea water. View

  • Molybdenum: 5 Factors Driving Price In 2021 - Commodity

    Jun 04, 2021 · 2. Flotation. The fine powder is mixed with water and aerated in flotation tanks. The less dense molybdenite ore floats to the top, while the dense worthless rock sinks to the bottom. If the recovered ores contain copper, flotation tanks can separate molybdenite from copper sulfide.

  • Carboxymethylcellulose Adsorption on Molybdenite: The ...

    The adsorption of carboxymethylcellulose polymers on molybdenite was studied using spectroscopic ellipsometry and atomic force microscopy imaging with two polymers of differing degrees of carboxyl group substitution and at three different electrolyte conditions: 1 × 10 –2 M KCl, 2.76 × 10 –2 M KCl, and simulated flotation process water of multicomponent electrolyte content, with an ionic ...

  • (PDF) Role of model systems in fundamental studies on ...

    The results show that molybdenite recovery increases when kerosene is supplied on the surface of bubbles which was particularly important in the flotation of molybdenite at pH > 9.5 in seawater.

  • Climax Molybdenum Deposit (MRDS #10214926) MO

    lb mo for 1918-1930 from butler and vanderwilt (1933); lb mo for 1931-1945 from vanderwilt (1947). ore tonnage for 1940-1943 and 1965 from climax molybdenum co. (terry fitzsimmons, pers. comm., 8/82). deposit. vanderwilt, and king, r.u., 1955, hydrothermal alteration at the climax molybdenite deposit: mining engineering, v. 7, no 1, p.41-53 ...

  • (PDF) Climax Mo Deposits - ResearchGate

    Climax-type porphyry Mo deposits are large (100 to 1,000 million metric tons of ore, containing 0.06 to about 1 wt percent Mo) and consist of stockworks of molybdenite (MoS2)-bearing veins and ...

  • Investigation of effective parameters for molybdenite ...

    TRIFFETT B., BRADSHAW D., 2008, The Role of Morphology and Host Rock Lithology on the flotation behaviour of molybdenite at Kennecott Utah Copper, AusIMM Publication Series, 9th International Congress for Applied Mineralogy, ICAM 2008 – Proceedings, 465–473.

  • Climax Mine Moly – Western Mining History

    Rocks. Name: Granite Role: Host Description: stocks, dikes, and sheets of medium-grained granite and pegmatite, and fine- to medium-grained equigranular granite, all emplaced in three phases Age Type: Host Rock Age Young: Mesoproterozoic Name: Granitoid Role: Host Description: Composite Climax Stock was introduced as multiple (5) pulses over the period from 33 and 18 Ma.

  • World Mining Magazine by World Mining Magazine - Issuu

    Sep 10, 2021 · The Climax mine is a porphyry molybdenum deposit with molybdenite as the primary sulphide mineral. The Climax mine was commissioned in

  • Safe And Durable Mineral Processing For Molybdenum In Ghana

    scheelite rubber sheets uzbekistan. Separation by flotation of Zircon and Scheelite Froth Luminescent separation is the mineral selection process based on luminance of minerals under the effect of ultraviolet and roentgen rays It is made use of in dressing of minerals luminescent in roentgen diamond containing scheelite fluorite zircon apatite spodumene and other ores or

  • Study of the natural floatability of molybdenite fines in ...

    Nov 01, 2015 · The floatability of molybdenite fines in saline solutions was investigated through microflotation studies using a modified Hallimond tube. In addition, the effect of pH and gypsum precipitation from calcium ions (Ca2+) and sulfate ions (SO 4 2− ) ions in saline water on the recovery of the molybdenite was analyzed. It was found that the floatability of molybdenite fines significantly ...

  • (PDF) Hydrophobic Agglomeration of Apatite Fines Induced ...

    Floc-flotation has been widely investigated in mineral processing, including floc-flotation of galena [5], sphalerite [6], molybdenite [3,7], coal [8][9][10], hematite [11][12][13], apatite [14 ...