copper pyrite mineral flotation

Copper and Pyrite Separation by Selective and Sequential Flotation

The flotation section is composed of two 8-cell “Sub-A” Flotation Machines. The copper section has four rougher cells, two scavenger cells and two cleaner cells for dual cleaning of the rougher concentrates. The rougher copper froth passes to the...

Read More

Copper Froth Flotation Archives | Mineral Processing & Metallurgy

The Problem with separating Copper from Zinc by flotation. The treatment of heavy sulphide ores of copper containing zinc and pyrite is often extremely difficult particularly if soluble copper and sulphates are present. This is usually the case in ore deposits near the surface or in tropical countries where the annual rainfall is...

Read More

Pyrite Depression in Copper Flotation - 911 Metallurgist

Mar 17, 2017 ... The Pyrite Depression in a Copper Only Flotation circuit is simple enough. If your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant's pH up to the other side (right side) of the PYRITE curve. The more flotation collector you have on, the higher you will need to increase...

Read More

Effect of pyrite content of feed and configuration of locked particles ...

Dec 14, 2017 ... Misreported pyrite into copper concentrates dramatically declines copper grade and recovery. Copper flotation can be also more complicated if flotation feed comes from an elevated-pyritic copper ore. In this investigation, the effect of two different ore types (high pyritic and low pyritic feeds) was studied on...

Read More

depression of pyrite in the flotation of copper ores - Research ...

thioglycolic acid behaviour in the separation of chalcopyrite from pyrite. Proceedings of the 2nd JKMRC International Student Conference 2006. (Hawkins, R., Goeldner, D. and Hill, L., Eds), Julius Kruttschnitt Mineral. Research Centre, The University of Queensland, pp.45-55. Depression of Pyrite in the Flotation of Copper...

Read More

Improving chalcopyrite mineral flotation selectivity against pyrite ...

advanced analytical techniques were found to correlate well with the mineral flotation recovery; pyrite recovery increased with increasing its content because of the increased activation by Cu. 2+ released from chalcopyrite upon oxidation (at pH 10.5) while chalcopyrite flotation was reduced by the surface hydrophilic (iron...

Read More

Pyrite-Gold Recovery in Copper Rougher Flotation Tailings

Keywords: Depression; Aeration; Regrinding, Pyrite,. Gold; Flotation. I. INTRODUCTION. Froth flotation is a widely used separating technique for the recovery of Cu and Au in porphyry copper-gold ores. In these ores, chalcopyrite and gold are the main valuable mineral/metal phases, with pyrite being the key sulphide...

Read More

influence of pyrite content on the flotation of ... - Semantic Scholar

In the flotation of copper ores several processing plants report that copper recovery is affected by the proportion and type of pyrite in the ore, with the effect becoming more intense when the feed ore particles are fine, i.e. in fine regrinding. In this work, a model mix mineral system consisting of chalcopyrite and pyrite with...

Read More

Heterocoagulation of chalcopyrite and pyrite minerals in flotation ...

Heterocoagulation between various fine mineral particles contained within a mineral suspension with different structural and surface chemistry can interfere with the ability of the flotation processes to selectively separate the minerals involved. This paper examines the interactions between chalcopyrite (a copper mineral)...

Read More

Investigation of Flotation Parameters for Copper Recovery from ...

Feb 22, 2012 ... A flotation pre-treatment study for the separation of enargite (Cu3AsS4) from chalcopyrite (CuFeS2) ores of different origins was investigated in this work. The copper ore bearing enargite mineral contained 5.87 mass% As and 16.50 mass% Cu while the chalcopyrite bearing ore contained 0.32 mass% As...

Read More

Pyrite Depression By Reduction Of Solution Oxidation Potential

Almost all sulfide ores are processed by the froth flotation technique, and in so doing the rejection or depression of pyrite, a common sulfide mineral, to the worthless .... Flotation tests with lead and copper ore samples were made to compare the effectiveness of sodium cyanide and sodium sulfite as depressants for pyrite.

Read More

Froth Flotation - Department of Chemical Engineering

After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of concentration. (b) % Metal Recovery. (c) % Metal Loss. (d) % Weight Recovery, or % Yield. (e) Enrichment Ratio. Table 1: Grade/recovery performance of a hypothetical copper ore flotation process.

Read More

An improved flotation test method and pyrite depression by an ...

Seawater flotation of copper-molybdenum sulphide minerals was carried out in two different flotation cells: (i) the modified Denver cell developed by CSIRO, and (ii) a standard commercial cell. The impact of various reagents, including an organic pyrite depressant, was investigated. Finally, the flotation kinetic was modelled...

Read More

Factorial design of selective flotation of chalcopyrite from copper ...

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 found that the highest influence on copper recovery is exerted by the size of the ground ore, pH value and collector consumption. In view of the high activity of pyrite and...

Read More

The use of seawater as process water in concentrating plant ... - Jultika

Faculty of Technology. The use of seawater asprocess water in concentration plant and the effectson the flotation performance of Cu. - Mo ore. LauriVeki. Master'st hesis. Degree Programme ofProcessEngineering. December2013...

Read More

US5171428A - Flotation separation of arsenopyrite from pyrite ...

On addition of a collector the pyrite is rendered floatable, enabling froth flotation to achieve a concentrate rich in pyrite and tailings rich in arsenopyrite. ... Similarly, Canadian patent 1,238,430 teaches the use of sulfur dioxide to separate copper and iron sulfides from the nickel sulfide, pentlandite ((FeNi) 9 S 8). The use of...

Read More

Modelling of pyrite depression process by lime in copper and zinc ...

Jun 26, 2012 ... As the result of theoritical and experimental investigations in laboratory and industrial scale physico- chemical models for optimal conditions of copper, zinc and iron sulphides flotation and depression have been derived, verified and proved. Physico-chemical models derived are based on the mechanism.

Read More

Minerals Engineering Conferences - Flotation '17

Temperature-responsive polymers as tuneable collectors/depressants in flotation: a review W.S. Ng, L.A. Connal, G.V. Franks (University of Melbourne, Australia) and E. Forbes (CSIRO Mineral Resources, Australia). Selective depression of pyrite using biopolymers in the flotation of copper sulphide minerals. Y. Mu, Y. Peng...

Read More

The flotation of auriferous pyrite with a mixture of collectors Abstract ...

mineral flotation. More recently, research has resulted in the use of trithiocarbonate. (TTC) collectors. The present study focuses on the effect of mixtures of C12 ... cyanidation tailings by flotation of pyrite using sodium iso-butyl xanthate (SIBX) as a ... The pulp was conditioned with copper sulphate for 5 min, followed by the.

Read More

The Adsorption of Cu Species onto Pyrite Surface and Its Effect on ...

Dec 10, 2015 ... In some ore-processing plants, the flotation of pyrite is carried out at neutral pH or slight acid conditions, such as Dongguashan copper ores-dressing plant in Anhui, China. Besides, CuSO4 is often used as an activator for the activation of pyrite [10, 11]. In other cases, due to the association of pyrite with...

Read More

The effect of temperature on the flotation of pyrite - SAIMM

Dec 12, 1984 ... In the flotation of pyrite, the mass transfer of the pyrite from the pulp to the troth is thought to be the rate- controlling step, whereas the flotation of gangue is controlled by the combined effect of the stability and velocity of the froth and the viscosity of the elutriating medium. The latter is probably the controlling...

Read More

Separation efficiency improvement of a low grade copper-gold ...

of a gold-containing pyrite concentrate). The copper concentrate grades achieved from the flotation circuit at Telfer have typically fallen well short of the theoretical achievable grades despite the majority of copper being hosted in high copper bearing minerals: chalcopyrite, chalcocite, bornite and others. The recovery of...

Read More

Copper mining. From ore to copper. - School Science

Concentrating the ore. The ore is crushed, ground and then enriched (concentrated) by Froth Flotation. The powdered ore is mixed with a special paraffin oil which makes the copper mineral particles water repellent. It is then fed into a bath of water containing a foaming agent which produces a kind of bubble bath. When jets...

Read More

Assessment of the floatability of chalcopyrite, molybdenite and pyrite ...

Biosolids and representative compounds of their main components – humic acids, sugars, and proteins – have been tested as possible environment-friendly collectors and frothers for the flotation of copper sul- phide ores. The floatability of chalcopyrite and molybdenite – both valuable sulphide minerals present in.

Read More

Beneficiation of arsenic bearing complex sulphide ore by flotation

Abstract: In this study beneficiation of a sulphide ore from the Gümüşhane-Black Sea Region of Turkey was investigated. Detailed flotation studies were carried out with the ore sample which contained 2.95%. Pb, 6.72% Zn and 0.32% Cu. Mineralogical analyses showed that the sample includes pyrite, galena, sphalerite...

Read More

(NMBT) Collector on the Flotation of Black Mountain Ore - UJContent

Abstract—This paper investigated the performance of Sodium. Mercaptobenzothiazole (NMBT) as a collector in the flotation of. Black Mountain ore. The ore contains metals such as lead, copper and zinc and the associated minerals of economic importance are chalcopyrite, galena and sphalerite respectively, with traces of...

Read More

Low pH Trial in the Ernest Henry Mining Copper Rougher Flotation ...

Jul 17, 2013 ... flotation circuit. pH EFFECT ON SULPHIDE MINERAL FLOTATION. Copper and iron bearing sulphide minerals are the two predominant minerals being floated in the. EHM circuit with chalcopyrite and pyrite being the two most abundant. During a study by Göktepe,. (2001) chalcopyrite flotation was found to...

Read More

Sulphide Mineral Flotation - DiVA portal

Jun 12, 2013 ... Furthermore, the effect of mixed sulphide minerals, i.e., pyrite–chalcopyrite, pyrite–galena, ... between pyrite and other sulphide minerals in terms of their flotation behaviour in the context of inevitable H2O2 ...... It has been well established that copper activation of sphalerite follows an ion exchange.

Read More

surface analytical studies of oxidation and collector ... - eCM Journal

flotation. Conversely, oxidized chalcopyrite surfaces reduced in situ become copper deficient and were not able to float. The iron-containing pentlandite (Fe, Ni)9S8 mineral has also been studied with similar results using XPS, SAM,. Mössbauer and spectral reflectance measurements. Oxidation of the pentlandite surfaces...

Read More

Ethyl xanthate collector interaction with precipitated iron and copper ...

Apr 28, 2016 ... thate collector and quite contrarily, their formation and adsorption on the precipitate surface could inhibit the collector adsorption. У 2016 Elsevier B.V. All rights reserved. 1. Introduction. Froth flotation is a common and versatile process used to separate the variety of minerals present in ore deposits. While.

Read More

Extraction Of Copper From Copper Pyrites - Embibe

Copper is extracted from its principal ore copper pyrites (CuFeS2). The ore is concentrated by froth flotation process. The concentrated ore is roasted ...

Read More

DEVELOPMENT OF PROCESSING ALTERNATIVES ... - Gowest Gold

Mineralization at the Frankfield project contains arsenopyrite and pyrite as the major sulphide minerals. Bulk flotation of all sulphides results in extremely high gold recovery. However, the gold is almost entirely associated with the arsenopyrite fraction of the ore and is refractory in nature requiring preoxidation treatment.

Read More

Pyrite Flotation With Xanthate Under Alkaline Conditions ...

The desulfurisation technique involves different specific mineral processing challenges. The most critical relates to the difficulty in floating tailings pyrite resulting from a base-metal flotation circuit where pyrite is already depressed. Current mineral processing treatments consist in grinding sulfur-rich ore at a high pH (above...

Read More

Sulfide copper ore froth flotation plant with 1000t/h of two lines ...

Sep 19, 2014 ... Moroccan customer processed copper with 1000t/h of two lines. After continuous technical discussions with Moroccan customer, we confirmed the flotation flow ...

Read More

PGM Associations in Copper-Rich Sulphide Ore of the Oktyabr ...

The PGM assemblages of the Cu-rich sulphide ores occurring in the western exocontact zone of the Talnakh intrusion and the Kharaelakh massive orebody have been studied. Eleven ore samples, weighing 20 to 200 kg, were processed using gravity and flotation-gravity techniques. As a result, the gravity concentrates...

Read More

The Effect of Sulfurization Process on Flotation of Copper Ore ...

Journal of Minerals & Materials Characterization & Engineering, Vol. 7, No.3, pp 193-202, 2008 jmmce.org Printed in the USA. All rights reserved. 193. The Effect of Sulfurization Process on Flotation of Copper Ore. Containing Gold and Silver brahim TEĞN and Recep Z YADANOĞULLARI*. Department of Chemistry, Faculty...

Read More

Froth Flotation in Saline Water - J-Stage

process is commonly carried out in alkaline pH adjusted with lime to depress pyrite, but in seawater depressing effect of Ca ions on molybdenite flotation is augmented, and different pyrite depressants are needed. Keywords: Froth flotation, Salt flotation, Cu sulfides flotation; saline water; seawater flotation. Froth Flotation in...

Read More

redox conditions in the selective flotation of enargite

ABSTRACT. Enargite (Cu3AsS4) is a Cu-As mineralogical species which occcurs in some Chilean porphyric copper ores deposits. This mineral exhibits a good floatability with different sulphidrylic collectors, such as, xanthates, dithiophosphates, thionocarbamates and xanthogen formates, incorporating As impurities to the...

Read More

Flotation Reagents - suppliers, manufacturers, exporters

Dithiophosphate BA is an excellent collector with frothing performance in flotation of nonferrous metallic minerals. It exhibits specific properties for separating silver, copper, lead and activated zinc sulfide minerals and difficult polymetallic ores. The collective performance of Dithiophosphate BA is weak for the pyrite and...

Read More

MEI Blog: Challenges in copper flotation

Sep 10, 2011 ... The development of froth flotation had an enormous impact on copper mining, enabling chalcopyrite and other sulphides to be efficiently separated from ores of relatively low grade and fine grain size. Until 1907 practically all the copper mined in the USA was from underground vein deposits, averaging...

Read More
PRE Post:plug and ring thread grinding machine made in taiwan
NEXT Post:cau tao ball mill type ml 3000 for