selective flotation of chalcopyrite and bornite from pyrite

selective flotation of chalcopyrite and bornite from pyrite

Selective Flotationof Chalcopyrite And Bornite From Pyrite ...

Selective Flotation of Chalcopyrite and Pyrite from a ... A process that allows selective flotation separation of low Cu/S ratio minerals (chalcopyrite and pyrite) from high Cu/S ratio minerals (bornite and chalcocite) from a mixed copper mineral concentrate under controlled oxidative-reductive potential conditions has been developed.

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Selective flotation of chalcopyrite from pyrite using ...

2019-8-15  Single mineral flotation tests were performed to evaluate the flotation behavior of chalcopyrite and pyrite using HEDP or EX as collector at a dosage of 2 × 10 −4 mol/L with the results shown in Fig. 1(a). It can be seen from Fig. 1(a) that, within the pH range studied, the flotation recovery of chalcopyrite using HEDP as collector was slightly higher than that of chalcopyrite with EX as ...

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selective flotation gold of chalcopyrite from pyrite

selective flotation of chalcopyrite and bornite from pyrite. selective flotation of chalcopyrite and bornite from pyrite_ Minerals Engineering International Online Commodities: Copper S Roy, A Datta, S Rehani, Flotation of ... Inquire Now; Polymetalic Flotation Zinc Sulfide

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(PDF) Selective flotation of chalcopyrite from pyrite ...

2019-7-31  Single mineral flotation of chalcopyrite, molybdenite and pyrite with a regular collector (potassium amyl xanthate) and a selective collector (N-isopropoxypropyl-N′-ethoxycarbonyl thiourea) for ...

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Selective flotation of chalcopyrite from pyrite using ...

Screening and/or designing more selective and green collectors is a ‘hot topic’ in mineral processing field. In this work, 1-Hydroxyethylidene-1, 1-diphosphonic acid (HEDP), a cheap green reagent widely used in water treatment, was for the first time, applied in the flotation separation of chalcopyrite from pyrite.

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Lactic acid as selective depressant for flotation ...

2019-12-15  High flotation recoveries of both pyrite and chalcopyrite were achieved at an SBX concentration of 10 mg/L, and increasing the collector concentration increased the difficulty of flotation separation of pyrite from chalcopyrite. It is therefore necessary to add a selective depressant to the flotation pulp to separate the pyrite from chalcopyrite.

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AN FTIR STUDY ON SELECTIVE SEPARATION OF PYRITE

2015-2-26  Chalcopyrite and arsenopyrite are often associated with pyrite and selective depression of the pyrite from these would prove economically beneficial for further extraction. As against the conventional techniques, microbially induced flotation and flocculation stands out to be more effective, economically viable and an environmentally benign process

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(PDF) Dextrin as a Regulator for the Selective Flotation ...

Results are presented on the flotation of chalcopyrite from a chalcopyrite-galena bulk concentrate high in pyrite using dextrin as a depressant for galena and pyrite at pH 8.

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Dextrin as a Regulator for the Selective Flotation of ...

2013-7-18  Results are presented on the flotation of chalcopyrite from a chalcopyrite-galena bulk concentrate high in pyrite using dextrin as a depressant for galena and pyrite at pH 8. On a étudié l'adsorption des ions tant de dextrine que de xanthate aux interfaces pyrite/solution aqueuse et galène/solution aqueuse par des essais d'adsorption en lot.

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Investigating the selectivity of a xanthate derivative for ...

2019-9-21  Separating chalcopyrite, an important copper-containing ore, from pyrite is an important mineral-processing objective. Herein, we report the synthesis of S-hydroxyethyl-O-isobutyl xanthate (HEIBX), a novel surfactant bearing both hydroxyl and thione groups, through the attachment of a hydroxyethyl group to sodium isobutyl xanthate (SIBX), and its first application as a flotation collector

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Selective separation of chalcopyrite from pyrite with a

2019-6-5  Thus, this study offers a novel pyrite depressant, polyglutamic acid (PGA), in the selective flotation of chalcopyrite with xanthate as a collector. The flotation and adsorption mechanism on chalcopyrite and pyrite were systematically studied using a series of flotation tests, zeta potential measurements, adsorption analysis, infrared spectral (IR) analysis, and X-ray photoelectron ...

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(PDF) Dextrin as a Regulator for the Selective Flotation ...

Results are presented on the flotation of chalcopyrite from a chalcopyrite-galena bulk concentrate high in pyrite using dextrin as a depressant for galena and pyrite at pH 8.

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Selective Flotation - Mineral Processing Metallurgy

2015-9-17  In selective flotation, less is more! ... Since we are in a sulfide system containing pyrite, sphalerite, chalcopyrite, bornite, and chalcocite; this graph presents how well the test conditions were at recovering ‘selectively’ Copper species without too much of the other sulfides.

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Factorial design of selective flotation of chalcopyrite ...

2015-12-5  The lab tests have been carried out to examine the influence of different factors on selectivity of chalcopyrite flotation from copper sulfides with moderate content of pyrite. The authors use the factorial design of the experiments. It is studied how grinding fineness and xanthate concentration influence flotation of chalcopyrite and pyrite at different lime-adjusted pH values of pulp. It is ...

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AN FTIR STUDY ON SELECTIVE SEPARATION OF PYRITE

2015-2-26  Chalcopyrite and arsenopyrite are often associated with pyrite and selective depression of the pyrite from these would prove economically beneficial for further extraction. As against the conventional techniques, microbially induced flotation and flocculation stands out to be more effective, economically viable and an environmentally benign process

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A STUDY OF FLOTATION AND LEACHING BEHAVIOUR

2011-3-17  chalcopyrite. Chalcopyrite recovery was marginally improved from the collectorless flotation case while bornite experienced vastly improved recoveries in the presence of a collector to surpass the recovery of chalcopyrite. The gap between floatability of bornite and chalcopyrite

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A study on the effect of active pyrite on flotation of ...

2018-6-27  greater effect on the chalcopyrite flotation than the other parameters. The recovery and grade of chalcopyrite and pyrite were obtained as 79.95%, 49% and 5.3%, 7.98% using the Aero 407, respectively. Under the optimum conditions, the grade of final concentrate increased from 0.94% to 21.3% with three cleaner stages.

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Selective adsorption mechanism of salicylic acid on pyrite ...

2020-2-3  Selective adsorption mechanism of salicylic acid on pyrite surfaces and its application in flotation separation of chalcopyrite from Separation and Purification Technology ( IF 7.312) Pub Date Guang Han, Shuming Wen, Han Wang, Qicheng Feng

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Flotation of Pyrite - 911metallurgist

2017-5-3  The recovery of copper, as chalcopyrite, is variable; the highest recovery (93.2 per cent.) was obtained by the use of X cake and xylidine in alkaline solution. This reagent at the same time gave much lower recoveries for both pyrite (47.9 per cent.) and zinc (71.0 per cent.), thus indicating possibilities of differential or selective flotation.

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Selective Attachment of Leptospirillum ferrooxidans for ...

L.f exhibits selective attachment to pyrite between 0 h and 168 h exposure via an indirect contact mechanism. Separation of chalcopyrite from pyrite was achieved through exposing the minerals for

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NEW SELECTIVE COLECTOR FOR FLOTATION OF SULFIDE

2007-3-3  NEW SELECTIVE COLECTOR FOR FLOTATION OF SULFIDE ORES ... pyrite-bornite-chalcopyrite association and contains not only copper, arsenic and sulfur but also tellurium and tellurium-containing sulfosalts. This association is the main carrier of ... pyrite-chalcopyrite paragenesis are pyrite, chalcopyrite

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Selective Flotation - Mineral Processing Metallurgy

2015-9-17  In selective flotation, less is more! ... Since we are in a sulfide system containing pyrite, sphalerite, chalcopyrite, bornite, and chalcocite; this graph presents how well the test conditions were at recovering ‘selectively’ Copper species without too much of the other sulfides.

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Factorial design of selective flotation of chalcopyrite ...

2015-12-5  The lab tests have been carried out to examine the influence of different factors on selectivity of chalcopyrite flotation from copper sulfides with moderate content of pyrite. The authors use the factorial design of the experiments. It is studied how grinding fineness and xanthate concentration influence flotation of chalcopyrite and pyrite at different lime-adjusted pH values of pulp. It is ...

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NIOSHTIC-2 Publications Search - 10004717 - The

The flotation of chalcocite, bornite, chalcopyrite, and pyrite has been studied in a microflotation cell in which the potential of a bed of the mineral particles could be controlled electromechanically. The ethylxanthate-induced flotation of each mineral is markedly dependent on electrochemical potential, with the recovery changing from 0 to 100 pct in potential intervals of - 0.2 V.

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A study on the effect of active pyrite on flotation of ...

2018-6-27  greater effect on the chalcopyrite flotation than the other parameters. The recovery and grade of chalcopyrite and pyrite were obtained as 79.95%, 49% and 5.3%, 7.98% using the Aero 407, respectively. Under the optimum conditions, the grade of final concentrate increased from 0.94% to 21.3% with three cleaner stages.

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PDF Improving Chalcopyrite Mineral Flotation Selectivity ...

In this study, pulp aeration/oxidation potential is used to optimise the selective flotation of chalcopyrite from pyrite through a combination of single mineral, mixed minerals and real ore flotation experiments. Author: Clement Owusu. Publisher: ISBN: OCLC:892039386. Category: Page: 129. View: 965

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Minerals Free Full-Text Selective Attachment of ...

L.f exhibits selective attachment to pyrite between 0 h and 168 h exposure via an indirect contact mechanism. Separation of chalcopyrite from pyrite was achieved through exposing the minerals for 72 h with an L.f culture grown on either HH media, chalcopyrite, or pyrite. The results produced 80.4, 43.4, and 47.4% recovery of chalcopyrite ...

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Selective depth analyses of the alteration products of ...

Selective depth analyses of the alteration products of bornite, chalcopyrite and pyrite performed by XPS, AES, RBS Giovanni PRATESI; Giovanni PRATESI Museo di Storia Naturale - Sezione di Mineralogia, Università di Firenze, Via G. La Pira 4, 50121 Firenze, Italia. e-mail: [email protected]

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Selective depth analyses of the alteration products of ...

2021-8-27  Selective depth analyses of the alteration products of bornite, chalcopyrite and pyrite performed by XPS, AES, RBS GIOVANNI PRATESI and CURZIO CIPRIANI Museo di Storia Naturale -Sezione di Mineralogia, Universita di Firenze, Via G. La Pira 4, 50\21 Firenze, Italia. -e-mail: [email protected]

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Differential flotation of a chalcocite-pyrite particle bed ...

External control of the electrochemical potential of a bed of mineral particles was investigated by the US Bureau of Mines as a method for controlling particle interaction with organic collectors and, thus, flotation response. A cylindrically shaped, 200- to 300-g bed of sulfide mineral particles was used as the working electrode in an electrochemical-flotation cell. In a pH 9.2 sodium ...

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