copper and molybdenum flotation

copper and molybdenum flotation

Copper-Molybdenum ores - Danafloat - Home

Recovery of copper is by standard flotation reagents identified in the copper ore flotation description. Molybdenum will float naturally with the copper but can be crowded in the froth by the copper mineralization and use of a moly collector (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) enhances its floatability.

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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 ...

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Nitrogen Gas Molybdenum Flotation from Copper Concentrate

Sep 03, 2018 · The copper concentrator produces 1050 mt/day of bulk Cu-Mo concentrate averaging 27% Cu and 0.6% Mo. Molybdenum plant feed is thickened to 62% solids and stored in two 150 cubic meter tanks. Two identical flotation circuits are fed from a constant head tank through changeable orifice plates thus maintaining steady feed rates.

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Molybdenum Ore Processing by Flotation

May 05, 2016 · 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 ...

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Estimation of Copper and Molybdenum Grades and Recoveries ...

Jul 28, 2016 · In this paper, prediction of copper and molybdenum grades and their recoveries of an industrial flotation plant are investigated using the Artificial Neural Networks (ANN) model. Process modeling has done based on 92 datasets collected at different operational conditions and feed characteristics. The prominent parameters investigated in this network were pH, collector, frother and

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Effect of copper ions on the flotation separation of ...

Jan 01, 2018 · Flotation results indicated that copper ions dramatically reduced the recoveries of copper and molybdenum, and increased the inhibition effect of sodium sulfide; that is, the flotation separation of chalcopyrite and molybdenite was seriously hindered by copper ions.

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A study of mechanisms affecting molybdenite recovery in a ...

Dec 08, 2009 · Copper and molybdenum recovery data for a one year period of a typical porphyry copper flotation plant are reported in Fig. 1, showing high variability of molybdenum recovery with time. Download : Download full-size image; Fig. 1. Historical recovery data for a typical porphyry copper plant. Bulk copper/molybdenum flotation circuit.

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Effects of aluminosilicate minerals on copper–molybdenum ...

Jul 01, 2011 · As an alternative solution, flotation at reduced pulp density (24%) improved the grade and the recovery of copper and molybdenum and decreased the grade and recovery of Al 2 O 3 and SiO 2 in comparison to the currently used pulp density (29%) in the Sarcheshmeh flotation plant.

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A process mineralogy approach to optimize molybdenite ...

Oct 01, 2020 · In the second stage (molybdenum plant), which includes selective molybdenite flotation, copper sulphide is depressed and molybdenite is floated. One of the challenges for the flotation of copper-molybdenum ores is the presence of copper sulphide minerals in molybdenum concentrate.

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Copper Sulfide Flotation - Mineral Processing & Metallurgy

Apr 13, 2016 · Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.

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Optimization of a Copper/Molybdenum Flotation Circuit by ...

Optimization of a Copper/Molybdenum Flotation Circuit by Depressing Pyrite from the Rougher Flotation Stage Using Different Scheme of Reagents A thesis submitted in partial fulfillment of the requirements for the degree of Master Of Science in Metallurgical Engineering by Wander A. Valderrama Dr. Carl C. Nesbitt/Thesis Advisor May 2020

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A study of mechanisms affecting molybdenite recovery in a ...

Dec 08, 2009 · Copper and molybdenum recovery data for a one year period of a typical porphyry copper flotation plant are reported in Fig. 1, showing high variability of molybdenum recovery with time. Download : Download full-size image; Fig. 1. Historical recovery data for a typical porphyry copper plant. Bulk copper/molybdenum flotation circuit.

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The Inadvertent Activation of Silicate Minerals Flotation ...

Nov 22, 2021 · A typical copper-molybdenum flowsheet has been applied to the plant to produce separate copper and molybdenum concentrates through bulk flotation and separation flotation, in a stepwise fashion. The flotation at the Cu-Mo separation stage consists of one stage of rougher flotation, six stages of cleaner flotation and three stages of scavenger ...

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US4083921A - Purifying molybdenum flotation concentrates ...

Copper, iron, and lead impurities are removed from molybdenum flotation concentrates by mixing the feed concentrates with a nonvolatile chloride salt, heating the mixture to a temperature of from about 200° to 350° C for a time sufficient to activate the lead impurities in the concentrates so that they can be leached therefrom during the subsequent leach step, and leaching copper, iron, and ...

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Substantiation of the Erdenetiyn-Ovoo copper-molybdenum ...

The article presents the results of a study of the factors affecting the efficiency of the copper-molybdenum ore flotation. The objective of this work was to substantiate and develop a reagent mode for flotation of the Erdenetiyn-Ovoo porphyry copper ores, which makes possible extracting main copper and molybdenum minerals into corresponding concentrates more fully and selectively.

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Los Bronces Copper and Molybdenum Mine - Mining

The slurry undergoes froth flotation for separating the copper and molybdenum concentrates. The concentrate is dried by thickening and filter press till the water content is reduced to 9%. The concentrates are either directly sold in the market or transported to the Charges smelter for the production of copper anodes.

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US4268380A - Froth flotation process - Google Patents

An improvement in the froth flotation separation of metallic sulfide mineral ores, particularly those ores bearing copper and molybdenum, in which a mercaptan collector is used in an earlier primary flotation stage, the improvement comprising the addition of activated carbon to achieve deactivation of the mercaptan collector prior to the component mineral separation stage, thereby providing ...

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Recovering Moly from Copper Oxide and Sulfide - Froth ...

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 foam by the mineralization of copper and molybdenum collector use (such as diesel oil, kerosene, refined oils, pine oil or xanthate ester) improves its buoyancy.

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Copper Sulfide Flotation - Mineral Processing & Metallurgy

Apr 13, 2016 · Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.

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The Effect of Seaweed Glue in the Separation of Copper ...

Flotation separation of chalcopyrite from molybdenite was studied using seaweed glue (SEG) as a depressant. Flotation process and mechanism were examined by response surface methodology, flotation tests, adsorption tests, zeta potential measurements and fourier transform infrared (FT-IR) spectra. Response surface methodology with a Box–Behnken design suggested the optimal reagent

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High Precision, Advanced froth flotation copper molybdenum ...

The froth flotation copper molybdenum ore machines up for sale are from the leading sellers and trusted manufacturers who assure outstanding quality and steady performance for a long time. These motor-operated froth flotation copper molybdenum ore machines are available in various distinct models and their capacities may vary for each.

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News Releases | Los Andes Copper Ltd.

Based on the PFS test work results and for the first 12 years of operation, the molybdenum recoveries are 90.3% in the rougher stage, 95.8% in the cleaner-scavenger stage, and 90.6% in the copper-molybdenum selective flotation; resulting in a projected overall molybdenum recovery of 76%, a slight improvement from the 75% recovery assumed in the ...

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Combined collector for floatation of porphyry copper ...

CN-101844107-A chemical patent summary.

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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 ...

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Molybdenite flotation from copper/molybdenum

copper flotation circuits and were taken before entering the molybdenum circuit. The Morenci copper/molybdenum concentrate analyzed 0.2%-0.4% Mo and 28%-33% Cu, while the grade of the Copperton copper/molybdenum concentrate was 2.5%-4.1 % Mo and 32%-34% Cu. The concentrates were received at 20%-35% solids. The particle size data show that the

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FLOTATION PROCESSING OF COPPER-MOLYBDENUM ORE

molybdenum concentrate by 3,69 %, the extraction of molybdenum by 6,05 %. Keywords: copper-molybdenum ore, flotation, dispergation, concentration, extraction INTRODUCTION As the deposits are depleted and the need arises to involve poor, finely disseminated ores in processing, it becomes necessary to improve the reagent modes of en-richment of ...

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(PDF) Modelling H2S gas generation in Copper/Molybdenum ...

Copper/Molybdenum flotation process uses sulfide and sulfuric acid as main reagents in order to be feasible the separation of copper and molybdenum. Typical pH values of this process ranging from ...

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Mineralogical Prediction on the Flotation Behavior of ...

The flotation parameter and the blending ratio of copper-molybdenum ore were dictated by the condition of the real flotation plant, thus, the only variable to be investigated is the effect of mineral composition of each copper-molybdenum ores.

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Estimation of Copper and Molybdenum Grades and

recognized the effects of different operational conditions and feed characteristics on the flotation process, can predict copper and molybdenum grades and their recoveries. 4. Result and Discussion A back propagation feed forward neural network with two hidden layers was constructed for modeling of the industrial flotation process.

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US3837489A - Molybdenum disulfide flotation antifoam ...

An antifoam and process for the separation of molybdenum values associated with predominantly copper ores of the sulfide type. The antifoam, 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 ...

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Zangezur Copper Molybdenum Combine

The flotation flowsheet involves the bulk flotation of copper and molybdenum minerals followed by depression of copper minerals and the flotation, with multi stage cleaning, of molybdenum.The plant is current treating ore at a rate of 20 metric tonnes per annum and it is planned to increase throughput through the installation of an additional ...

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Effects of Collectors and Frothers on Copper and ...

sodium ethyl xanthate for molybdenum and copper flotation, respectively and X-133 frother. In an attempt to increase coarse particle recovery, stronger collectors (potassium amyl xanthate, Aero 249 and Aero 3501) and frothers (FrothPro 618, FrothPro 630 and FrothPro 706) were used. The analysis was

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INVESTIGATION OF EFFECTIVE PARAMETERS FOR

copper–molybdenum flotation, and reviews most of the published applications. Section 2 gives a description of the industrial plant briefly. The materials and methods are introduced in Section 3. Finally, Section 4 analyzes the effect of some of the factors on the flotation of molybdenum and copper.

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Copper Sulfide Flotation - Mineral Processing & Metallurgy

Apr 13, 2016 · Flowsheet for treatment of Copper Sulfide ores rich inminerals such as chalcopyrite with gold and silver as well as arsenopyrite. The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, arsenopyrite, and calcite with 3 to 4% copper.

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The Inadvertent Activation of Silicate Minerals Flotation ...

Nov 22, 2021 · A typical copper-molybdenum flowsheet has been applied to the plant to produce separate copper and molybdenum concentrates through bulk flotation and separation flotation, in a stepwise fashion. The flotation at the Cu-Mo separation stage consists of one stage of rougher flotation, six stages of cleaner flotation and three stages of scavenger ...

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CN101844107A - Combined collector for floatation of ...

copper molybdenum collecting agent flotation combined capturing Prior art date 2010-04-29 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN 201010158744 Other languages ...

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Major Mines & Projects | Pinto Valley Mine

The flotation circuit operates as a bulk copper and molybdenum flotation process. Subsequent differential flotation is designed to produce the final individual copper and molybdenum concentrates. The rougher flotation circuit is operated to maximize recovery of

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ISOLATION AND CHARACTERIZATION OF LOST COPPER AND ...

ISOLATION AND CHARACTERIZATION OF LOST COPPER AND MOLYBDENUM PARTICLES IN THE FLOTATION TAILINGS . OF KENNECOTT COPPER PORPHYRY ORES . by . Tsend-Ayush Tserendavga . A dissertation submitted to the faculty of . The University of Utah . in partial fulfillment of the requirements for the degree of. Doctor of Philosophy . Department of ...

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