Molybdenite Flotation From Copper

Related Information of Molybdenite Flotation From Copper

Molybdenite Flotation - 911metallurgist

Differential Flotation Process for Recovery of Molybdenite from Copper Concentrates Factors Directly Affecting Molybdenite Flotation: The average molybdenite recovery in the copper concentrator for the first nine months of 1980 was 6713%

Molybdenite flotation from copper/molybdenum concentrates

Molybdenite flotation from copper/molybdenum concentrates by ozone conditioning The bulk copper/molybdenum feed generally varies from 02% Mo to 10% Mo, and with traditional reagents the single-stage rougher flotation recovery of molybdenite varies between 40% and 90% at a concentrate grade of 5% to 10% Mo

US5068028A - Molybdenite flotation from copper sulfide

A process for recovering molybdenite from feed materials containing copper sulfide and molybdenite (eg copper/molybdenum concentrates from flotation processes) wherein the feed material is treated with ozone and then floated to recover molybdenite

Molybdenum Ore Processing by Flotation

It is usually present as the sulphide, molybdenite, which is readily recovered in the copper flotation concentrate Copper sulphide flotation concentrates may contain from 025 to 100% MoS2 When such ores are milled in large tonnages the amount of molybdenum present may be substantial

Copper-Molybdenum ores - Danafloat - Home

Copper-Molybdenum ores While there is primary molybdenum mine production, a significant amount of moly is recovered as copper mine by-product The standard flow sheet consists of bulk sulphide flotation of copper and molybdenite while depressing gangue and iron minerals in …

Copper Molybdenum Flotation depressant - Barium Sulphate

Copper Molybdenum Flotation depressant 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

Factors affecting the flotation recovery of molybdenite

Investigations have been conducted to characterize the surface stone and flotation properties of molybdenite in aqueous environments typical of those that exist in the copper circuits of plants which process porphyry copper ores

OPTIMIZATION OF FLOTATION PARAMETERS FOR …

molybdenite concentration, firstly, a bulk copper-molybdenum concentrate is obtained by floating Cu-Mo together Secondly, molybdenite is enriched selectively by depressing copper and iron sulfides (Wills, 1997) In addition, it should be noted that conditioning time, pulp density, and reagent additions are the most important

Mechanism study on flotation separation of molybdenite

Generally, thioglycollic acid (TGA) is employed as depressant in copper-aluminium flotation, it is also a good substitute for sodium cyanide as copper sulfide depressant with less usage and more environmental friendly -SH and -COOH are effective groups of thioglycollic acid when reacting with sulfide deposit The supposed mechanisms are: it is absorbed on the mineral surfaces chemically or physically, meanwhile …

Effect of copper ions on the flotation separation of

The flotation response of chalcopyrite and molybdenite in the presence of copper ions was investigated through single mineral flotation tests and flotation separation tests The influence mechanism was studied by adsorption experiments, zeta-potential measurements, and …

US5068028A - Molybdenite flotation from copper sulfide

A process for recovering molybdenite from feed materials containing copper sulfide and molybdenite (eg copper/molybdenum concentrates from flotation processes) wherein the feed material is treated with ozone and then floated to recover molybdenite

Molybdenite flotation from copper/molybdenum concentrates

The bulk copper/molybdenum feed generally varies from 02% Mo to 10% Mo, and with traditional reagents the single-stage rougher flotation recovery of molybdenite varies between 40% and 90% at a concentrate grade of 5% to 10% Mo

Flotation of Chalcopyrite and Molybdenite in the Presence

A few studies have reported the deleterious effect of fulvic and humic acids on molybdenite flotation [13,14] They showed that organic species in water that originate from reagent and source of water (humic acids, tannics) act as depressants of molybdenite

INVESTIGATION OF EFFECTIVE PARAMETERS FOR …

Molybdenite-bearing copper sulphide ores are typically beneficiated by froth flotation techniques in two stages The first stage, commonly known as the copper circuit,

A novel approach for preferential flotation recovery of

Request PDF on ResearchGate | A novel approach for preferential flotation recovery of molybdenite from a porphyry copper–molybdenum ore | In this paper, three flotation approaches, bulk flotation followed by separation, selective Cu flotation followed by bulk flotation and then separation, and preferential Mo flotation followed by Cu flotation, were investigated to concentrate molybdenite

Flotation of Chalcopyrite and Molybdenite in the Presence

This study investigates the effect of natural organic materials contained in water, such as humic, fulvic and tannic acids, on the flotation of copper and molybdenum sulphides in alkaline conditions and in concentrations similar to those found in natural waters

Review of the flotation of molybdenite Part I - DeepDyve

Mar 10, 2016 · Read "Review of the flotation of molybdenite Part I: Surface properties and floatability, International Journal of Mineral Processing" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips

Effects of pH and pulp potential on selective separation

reagents, etc [7] Conventional separation of copper sulfide and molybdenite has been achieved with sulfide bulk flotation followed by 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]

Molybdenite - Wikipedia

Molybdenite is an important ore of molybdenum, and is the most common source of the metal While molybdenum is rare in the Earth's crust, molybdenite is relatively common and easy to process, and accounts for much of the metal's economic viability Molybdenite is purified by froth flotation, and then oxidized to form soluble molybdate

60 Centuries of Copper: The Flotation Process

The Flotation Process In the case of copper minerals, the particles adhere to this froth, which is separated, whereas the great bulk of the useless material sinks to the bottom of the tanks By varying the stone conditions within the cells different results can be obtained, thereby making flotation highly selective in skilled hands

Molybdenum mining in the United States - Wikipedia

Byproduct of copper mining To separate the molybdenite from the copper sulfides, the copper/molybdenum concentrate is run through a molybdenite recovery flotation circuit, in which chemicals are added to "depress" the copper, meaning to prevent the copper sulfide minerals from attaching to the froth, while the molybdenum is unaffected

Circular 106: Selective Flotation of Molybdenite from

the selective flotation of molybdenite 3 EXPERIMENTAL WORK In the flotation of copper sulfide ores, xanthates are usually added for collecting copper minerals Molybdenite, being naturally hydrophobic, is easily floated with the copper minerals and must then be separated from them In a large number of stoneoratory experiments and in several

Molybdenum Processing - imoafo

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 Further treatment by acid leaching can be used to dissolve impurities like copper and lead if necessary

Electrolysis Oxidation of Chalcopyrite and Molybdenite for

Electrolysis Oxidation of Chalcopyrite and Molybdenite for Selective Flotation Hajime Miki*, Hidekazu Matsuoka, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara and Keiko Sasaki Department of Earth Resources Engineering, Kyushu University, Fukuoka 819–0395, Japan

Circular 106: Selective Flotation of Molybdenite from

In the flotation of copper sulfide ores, xanthates are usually added for collecting copper minerals Molybdenite, being naturally hydrophobic, is easily floated with the copper minerals and must then be separated from them In a large number of stoneoratory experiments and in …

Carmax Reports Preliminary Grindability and Flotation Test

Dec 20, 2016 · further copper-molybdenite separation and flotation optimization, investigating the effect of primary grind size on flotation; copper-molybdenite separation testing to estimate the final molybdenite concentrate metallurgy (grade and recovery) flotation optimization, such as the effect of primary grind size Sample Preparation and Test Work Parameters:

molybdenum flotation - mamaruimtopnl

The molybdenum mineral recovered by flotation is molybdenite The flotation agent uses non-polar oils as collectors, and a foaming agent is added In order to ensure the quality of molybdenum concentrates, we need to further separate copper, lead, iron and other metal minerals and calcium oxide and carbon minerals from molybdenum ,

Electrolysis Oxidation of Chalcopyrite and Molybdenite for

Electrolysis Oxidation of Chalcopyrite and Molybdenite for Selective Flotation Hajime Miki*, Hidekazu Matsuoka, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara and Keiko Sasaki Department of Earth Resources Engineering, Kyushu University, Fukuoka 819–0395, Japan

NIOSHTIC-2 Publications Search - 10007171 - Molybdenite

Molybdenite is recovered from copper sulfide flotation concentrates by froth flotation, with injection of air and steam into the flotation pulp at 70 deg-100 deg c and soluble sulfide reagents Injection of steam depresses cu and fe sulfide minerals and decreases the sulfide reagent consumption

Processing copper-porphyritic ore - srk

If molybdenite flotation is required to separate it from copper sulfides, the pH should be no more than 11 to provide pyrite depression, and lime is added with a small amount of cyanide and soluble silica is used to suppress gangue minerals within the molybdenum flotation circuit

copper and molybdenum flotation - Shanghai Xuanshi Machinery

Molybdenite flotation from copper/molybdenum … Typically, rougher molybdenite flotation and recovery from bulk copper / molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, cyanides, oxidants …

Review of the flotation of molybdenite Part I - DeepDyve

Mar 10, 2016 · Because of large differences between the surface properties of molybdenite and other sulfides, molybdenite can be recovered from Cu–Mo ores as a by-product with copper at levels as low as 001% Mo Approximately half of the world's molybdenum production comes from porphyry Cu–Mo ores ( Bulatovic, 2007; Guang-yi et al, 2012 ) One of the most important publications in this area, edited by …

POTENTIAL CONTROLLED FLOTATION OF SARCHESHMEH MOLYBDENITE*

Abstract – Molybdenite flotation in the Sarcheshmeh Copper Complex was studied as a function of pulp potential, controlled using two types of sodium sulfide, a mineral origin and a stone nature Air and either plant or stoneoratory nitrogen were used as flotation careers

DEPRESSION OF COPPER AND IRON SULFIDES IN MOLYBDENITE

Feb 02, 2017 · Typically, molybdenite flotation and recovery from bulk copper molybdenum concentrates has involved the use of alkalisulfides, Nokes reagents, cyanides, oxidants, and/or thermal treatment to depress copper and iron sulfide minerals

flotation process in the recovery of copper from copper

Copper-Molybdenum or Molybdenite (MoS2) is the predominant economic molybdenum mineral , Recovery of copper is by standard flotation reagents identified in the copper ore flotation description , During the molybdenum upgrading process, often the cleaner concentrate is roasted to drive residual reagents off all the minerals ,

The Effect of Sodium Silicate as pH Modifier and

in the Froth Flotation of Molybdenite Ores Chul-Hyun Park and Ho-Seok Jeon* Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea In flotation of porphyry molybdenite ores or copper-molybdenite ores using oil collector, a molybdenite (MoS 2) concentrate has mainly been separated by combination of sodium silicate (Na 2SiO

A study of mechanisms affecting molybdenite recovery in a

Dec 08, 2009 · Read "A study of mechanisms affecting molybdenite recovery in a bulk copper/molybdenum flotation circuit, International Journal of Mineral Processing" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at …

Copper And Molybdenum Flotation - antwerpsehavenpijlbe

Copper and molybdenum flotation process is commonly used for copper and molybdenum ore with pretty high grade, while its rarely adopted in industrial productionIn part combined flotation process, molybdenum with high floatability will be concentrated first, and then copper and molybdenum combined concentrate are concentrated together

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