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molybdenite concentrate copper leachingri

Copper removal from molybdenite concentrate by sodium ...

1998-5-1 A sample of the concentrate was also analyzed for mineral composition; the results are shown in Table 2.As can be seen in this table, chalcopyrite was the main copper mineral present in the molybdenite concentrate with 7.5% by weight, of which about 54% was in the form of liberated mineral, and the rest was associated mainly with molybdenite.

Removal of Copper from a Molybdenite Concentrate by ...

2016-8-23 For uses of molybdenite in the steelmaking process, the content of copper typically needs to be 0.5% or less.1,2 In this study, the refining of molybdenite by leaching of copper in chloride solution was investigated on a molybdenite-bearing flotation concentrate containing 6.1% copper as chalcopyrite. The study sought to reduce

Selective copper–iron dissolution from a molybdenite ...

2001-6-19 Selective copper–iron dissolution from a molybdenite concentrate using bacterial leaching Patricia Romano Department of Materials Science and Metallurgical Engineering, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain

(PDF) Selective copper-iron dissolution from a

The present research reports on the selective dissolution of copper and iron from a Chilean molybdenite concentrate using mesophilic, moderate and extreme thermophilic culture bacteria.

Kinetics of Copper Removal from Sulfidized Molybdenite ...

2015-2-1 Molybdenite concentrates produced from porphyry copper deposits contain copper as an impurity in variable quantities. To produce a high-grade molybdenite concentrate, a chemical purification method is normally practiced. In this paper, a new alternative for the copper elimination from molybdenite concentrates containing chalcopyrite by sulfidation of the molybdenite concentrate and subsequent ...

Leaching and Kinetic Modelling of Molybdenite

2021-8-15 Molybdenite (a mineral form of molybdenum (IV) sulfide, MoS 2) is a byproduct of froth flotation of porphyry copper and is the main source of molybdenum (widely used in steel alloys) and its compounds [1]. The standard process for the production of molybdenum involves roasting of molybdenite concentrate in air and subsequent reduction of the

Kinetics of copper dissolution in the purification of ...

The leaching of the sulfidized molybdenite concentrate for 90 min at 100 °C dissolved 96% of the copper which yielded a final concentrate with less than 0.2% Cu.

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, and/or thermal treatment to depress copper sulfide minerals. The bulk copper/molybdenum feed generally varies from 0.2% Mo to 1.0% Mo, and with traditional reagents the single-stage rougher flotation recovery of molybdenite ...

Removal of Copper from a Molybdenite Concentrate by ...

2016-8-23 For uses of molybdenite in the steelmaking process, the content of copper typically needs to be 0.5% or less.1,2 In this study, the refining of molybdenite by leaching of copper in chloride solution was investigated on a molybdenite-bearing flotation concentrate containing 6.1% copper

Remove Copper from Moly by Ferric Chloride Leaching

2018-10-13 The Anaconda Minerals Company operates a molybdenite and copper producing mine and mill facility near Tonopah, Nevada. Included with the milling facility is a ferric chloride leach plant for removal of copper mineralization from the molybdenite concentrates.

Leaching and Kinetic Modelling of Molybdenite

2021-8-15 Molybdenite (a mineral form of molybdenum (IV) sulfide, MoS 2) is a byproduct of froth flotation of porphyry copper and is the main source of molybdenum (widely used in steel alloys) and its compounds [1]. The standard process for the production of molybdenum involves roasting of molybdenite concentrate in air and subsequent reduction of the

Kinetics of Copper Removal from Sulfidized Molybdenite ...

2014-8-26 Molybdenite concentrates produced from porphyry copper deposits contain copper as an impurity in variable quantities. To produce a high-grade molybdenite concentrate, a chemical purification method is normally practiced. In this paper, a new alternative for the copper elimination from molybdenite concentrates containing chalcopyrite by sulfidation of the molybdenite concentrate and subsequent ...

Molybdenite flotation from copper/molybdenum concentrates ...

Typically, rougher molybdenite flotation and recovery from bulk copper/molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, cyanides, oxidants, and/or thermal treatment to depress copper sulfide minerals. The bulk copper/molybdenum feed generally varies from 0.2% Mo to 1.0% Mo, and with traditional reagents the single-stage rougher flotation recovery of molybdenite ...

Molybdenite flotation from copper/molybdenum

2012-6-18 The bulk copper/ molybdenumfeed generally varies from 0.2% Mo to 1.0% 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. With ozone conditioning for copper depression, however, improved separations appear to be possible, as demonstrated by

Efficient NO2 sensing performance of a low-cost ...

Molybdenite concentrate (MC) is generally formed during the extraction process of copper and molybdenum from porphyry copper-molybdenum in Almalyk Mining-Metallurgical Complex, Uzbekistan and has been used as the starting material in this study.

Molybdenum Climax Molybdenum - A Freeport-McMoRan

2021-8-16 At both locations, the recovery of copper is the prime target; however, substantial quantities of molybdenum are also recovered. The molybdenum-containing mineral (molybdenite) is obtained from the ore at the mines by a series of crushing, grinding and flotation operations, which produce a concentrate consisting primarily of the molybdenite ...

Mineral Commodity Report 9 - Molybdenum

2017-2-9 extracted from molybdenite concentrate produced as a by-product from some porphyry copper ores. World resources have been estimated at about 15 Mt in some 136 deposits, of which about two-thirds are recoverable reserves. About 9.5 Mt are contained in porphyry deposits, 0.25 Mt are in contact metamorphic deposits, and 0.1 Mt are

曹占芳_百度百科

(1)A novel approach for flotation recovery of copper and molybdenite from a copper-arsenic ore.Metallurgical Research and Technology,2016,113(1):103-121.（第一作者） (2)The selective leaching and separation of molybdenum from complex molybdenite concentrate containing copper

US7794677B2 - Reduction of copper content in the ...

Methods and systems for removing copper minerals from a molybdenite concentrate. One embodiment provides leaching copper from the molybdenite concentrate with a leaching solution comprising ferric chloride, removing molybdenite from the leaching solution, introducing an acid into the leaching solution and introducing O 2 , O 3 , or a combination of both, into the leaching solution.

Copper-Molybdenum Ores

2013-9-10 Copper-Molybdenum Ores. Molybdenite (MoS2) is the predominant economic molybdenum mineral. While naturally very hydrophobic and can effectively be floated with just frother, addition of a hydrocarbon oil extender enhances its recovery. Making very pure moly concentrate grades is necessary for lubricant and oil additive applications so the ...

Molybdenite flotation from copper/molybdenum

2012-6-18 The bulk copper/ molybdenumfeed generally varies from 0.2% Mo to 1.0% 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. With ozone conditioning for copper depression, however, improved separations appear to be possible, as demonstrated by

Purification of molybdenite concentrates

2008 (English) Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits Student thesis Abstract [en] A molybdenite flotation concentrate was refined by selective removal of copper impurity with minimum dissolution of molybdenum in the concentrate.

Selective copper–iron dissolution from a molybdenite ...

2015-7-31 Optimal copper–iron dissolution is obtained using extreme thermophilic microorganisms and low pulp density (2% w/v). Total selective dissolution of chalcopyrite is achieved which leads to a pure molybdenite concentrate being obtained.

THE EXTRACTION OF MOLYBDENITE FROM CERTAIN

2020-4-2 A flotation process for separating molybdenite from a commer cially produced copper concentrate containing primarily chalcopyrite and pyrite and up-grading it into a saleable product was developed. The process utilizes hydrogen peroxide, sodium ferrocyanide, sodium cyanide, and sulfuric acid. The procedure was studied in depth to determine the

INVESTIGATION OF EFFECTIVE PARAMETERS FOR

2014-5-13 About 50% of the world's molybdenite (MoS 2) concentrate is evolved from its primary ores and the rest as a low-grade concentrate by-product of copper, uranium and tungsten mining. Molybdenite reserves of the world are distributed in eight countries such as China, USA, Chile, Canada, Russia, Armenia, Peru, Iran and Kazakhstan.

Molybdenum Climax Molybdenum - A Freeport

2021-8-16 At both locations, the recovery of copper is the prime target; however, substantial quantities of molybdenum are also recovered. The molybdenum-containing mineral (molybdenite) is obtained from the ore at the mines by a series of crushing, grinding and flotation operations, which produce a concentrate consisting primarily of the molybdenite ...

关于湿法冶炼的英文翻译，谢谢_百度知道 - Baidu

2011-2-13 We found that , at the temperature of 110℃, with the S:L=1:2.8 and leaching time 4h,almost 100% of copper was removed from molybdenite concentrate .Then ,by leaching the silica and elemental sulfur from residue of copper removal , we found that almost 100

中南大学曹占芳 - Central South University

2021-3-24 (13)Techniques of copper recovery from mexican copper oxide ore. Mining Science and Technology, 2009, 19(1): 45-48. （第一作者） (14)Ultrasonic electro-oxidation process of molybdenite concentrate.The Chinese Journal of Process Engineering，2008,8(5

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