flotation of mixed copper oxide and sulphide minerals

Development and optimization of mixed sulphide/oxide copper ore

The Kansanshi Mine (First Quantum Minerals Ltd) treats a mixed sulphide/oxide copper-gold vein deposit Until June 2009, the sulphide and oxide minerals were respectively recovered by the well established xanthate flotation of sulphides and acid leaching of soluble oxide copper The mixed (transitional) sulphide/oxide

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Review, evolution, and optimization of the treatment of Kansanshi

only two ore types: oxide and sulphide All transitional ores minerals This made it unsuitable for the oxide floatleach circuit, and poor flotation response ruled out the conventional sulphide float circuit The novel circuit involved a conven- tional sulphide optimization of mixed sulphide/oxide copper ore treatment at

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Roasting (metallurgy) - Wikipedia

Sulfating roasting oxidizes certain sulfide ores to sulfates in a controlled supply of air to enable leaching of the sulfate for further processing The sulfide ores of copper are heated in the reverberatory furnace If ore contain iron, it is mixed with silica before heating Iron oxide slags as iron silicate and copper is produced in the

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Flotation of mixed copper oxide and sulphide minerals with xanthate

From previous flotation investigations of mixed copper oxide and sulphide minerals using xanthate and hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector on sulphide recovery as the sulphide and oxide minerals occurred naturally together In the case of the Minto operation the

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Flotation of mixed copper oxide and sulphide minerals - Axis House

Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors K Lee a, D Archibald b, J McLean c, M A Reuter c,* a Ausmelt Limited, AMML, Unit 3/8 Yandina Road, West Gosford, NSW 2250, Australia b Minto Explorations Ltd , P O Box 33174, Whitehorse, YT, Canada Y1A6S1

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Flotation of Low-grade DongChuan Copper Oxide Ores - CiteSeerX

Sep 10, 2013 n-octy hydroxamate (AM28) Lee et al have reported that using AM28 in conjunction with traditional sulphide collectors can successfully recover copper sulphides and oxides simultaneously by flotation from the blended minerals 5-7 AM28 consists of a saturated functional alkyl group and an octyl chain

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Flotation of mixed copper oxide and sulphide minerals with xanthate

Dec 20, 2017 Request (PDF) Flotation of mixed c Sherwood Copper's Minto Mine processes a high grade coppergold deposit in Yukon, Canada The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides In conjunction with Ausmelt Chemicals, Minto is currently

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Flotation Test of a High Silica Copper Oxide Ore in - Atlantis Press

AbstractIn this paper, the beneficiation of a copper oxide ore of Yunnan was investigated through bench-scale froth flotation tests During the froth flotation, the conditions that effect on the flotation performance was researched, including the grinding fineness and the dosage of lime as depressant, sodium sulphide as

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Investigation of Flotation Parameters for Copper Recovery from

Feb 22, 2012 In mix ore (enargite + chalcopyrite) flotation, 97 of enargite was first removed at pH 4 followed by chalcopyrite flotation at pH 8, and over 95 recovery was achieved in In the mineral industry, many copper and iron sulfide ores such as shown that proper control of reductionoxidation (redox) potential

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Flotation of cobalt bearing minerals from a mixed copper-cobalt

Results 8 - 38 Cobalt is recovered as a mineral sulphide using xanthate col- lectors but the recovery from the complex oxidized cobalt ores is more difficult (Teoh, Lawson & Han, 1981) The techniques for the flotation of mixed copper and cobalt bearing oxide ores using the sulphidization method in order to recover the

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Hydroxamate Collectors - 911 Metallurgist

Mar 17, 2017 Let me point you to two good papers on the flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors A great detailed thesis called An Investigation of Copper Recovery from a Sulphide-Oxide Ore with a Mixed Collector System and one called Flotation of mixed

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Sulphide Minerals: Surface Oxidation and Selectivity in - DiVA portal

Sulphide Minerals: Surface Oxidation and Selectivity in Complex Sulphide Ore Flotation Doctoral thesis Alireza Javadi Nooshabadi Division of Minerals and Metallurgical Engineering In addition, the effect of mixed sulphide minerals, i e , pyritechalcopyrite, pyrite galena covalent copper sulphide as shown in Fig

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Process Optimisation Of Mixed Copper Ores - Blue Cube Systems

ABSTRACT Open cast mining on the Zambian Copperbelt is challenged with transitional zones containing both copper sulphides and copper oxides Depending on the degree of oxidation and consumption of acid by gangue minerals, these mixed ores are either treated through standard sulphide flotation, sulphidisation or

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19 - Flotation of Oxide Copper and Copper Cobalt Ores - MyCourses

The laboratory studies conducted on these types of ore indicated that improved metallurgical results can be achieved using the sulphidization method with ester-modified xanthate 8 Tenorite (CuO; Cu = 80 , SG = 6 5) is usually present in mixed copper oxide and sulphide ore The flotation properties of tenorite are similar

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A Multistage Sulphidisation Flotation Procedure - Semantic Scholar

Keywords Froth flotation, Sulphidisation, Copper oxide ore, Mineralogy Generally copper oxide minerals do not respond well to traditional sulphide copper collectors and require alternative flotation techniques to concentrate the copper oxides 2 The ore is then suspended in slurry and mixed with reagent or

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recovery of copper from oxide copper ore by flotation and - METU

Dec 2, 2014 The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H2SO4) leaching The ore with 4 21 copper grade used in this study was obtained from Çorum-Dangaz region of Turkey Native copper, cuprite (Cu2O), tenorite (CuO), and malachite

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SOME ASPECTS OF LABORATORY FLOTATION OF Co - SAIMM

SOME ASPECTS OF LABORATORY FLOTATION OF Co-Cu MINERALS FROM MIXED OXIDE ORES Antoine F Mulaba Bafubiandi and Desmond T Bell Introduction Copper and cobalt oxide mineral deposits formed by the atmospheric weathering of near surface sulphide deposits are commonplace in the Democratic

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A study of the flotation characteristics of a complex copper ore

The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore comprising sulphide and oxide minerals with a view to achieving an optimal flotation performance in the treatment of the Kansanshi ore body This required an in-depth analysis of the mineralogy of the feed as well as

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EFFECT OF GRINDING CHEMISTRY ON THE - ORBi

mixed system was simplified The effect of pulp chemistry on oxidised copper sulphide minerals and copper oxide minerals were first studied separately before examining a mixed system The work completed on the oxidised sulphide mineral revealed that grinding pulp chemistry affects the flotation performance of the ore

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Flotation of Low-grade DongChuan Copper Oxide Ores - CiteSeerX

Sep 10, 2013 n-octy hydroxamate (AM28) Lee et al have reported that using AM28 in conjunction with traditional sulphide collectors can successfully recover copper sulphides and oxides simultaneously by flotation from the blended minerals 5-7 AM28 consists of a saturated functional alkyl group and an octyl chain

read more +

Flotation of a Copper-Lead Sulfide-Oxide Ore:Using a Combined

The properties of a Cu-Pb oxide ore are investigated by XRD and SEM Results show that the ore is characterized by chalcocite, galena, azurite and cerusite Copper and lead phases analysis show that the oxidation rates of copper and lead are up to 70 and 72 , respectively In order to get a good flotation performance

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Flotation of mixed copper oxide and sulphide minerals - Axis House

Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors K Lee a, D Archibald b, J McLean c, M A Reuter c,* a Ausmelt Limited, AMML, Unit 3/8 Yandina Road, West Gosford, NSW 2250, Australia b Minto Explorations Ltd , P O Box 33174, Whitehorse, YT, Canada Y1A6S1

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Flotation Test of a High Silica Copper Oxide Ore in - Atlantis Press

AbstractIn this paper, the beneficiation of a copper oxide ore of Yunnan was investigated through bench-scale froth flotation tests During the froth flotation, the conditions that effect on the flotation performance was researched, including the grinding fineness and the dosage of lime as depressant, sodium sulphide as

read more +

Development and optimization of mixed sulphide/oxide copper ore

The Kansanshi Mine (First Quantum Minerals Ltd) treats a mixed sulphide/oxide copper-gold vein deposit Until June 2009, the sulphide and oxide minerals were respectively recovered by the well established xanthate flotation of sulphides and acid leaching of soluble oxide copper The mixed (transitional) sulphide/oxide

read more +

19 - Flotation of Oxide Copper and Copper Cobalt Ores - MyCourses

The laboratory studies conducted on these types of ore indicated that improved metallurgical results can be achieved using the sulphidization method with ester-modified xanthate 8 Tenorite (CuO; Cu = 80 , SG = 6 5) is usually present in mixed copper oxide and sulphide ore The flotation properties of tenorite are similar

read more +

WO2012053915A1 - A process of gold and copper recovery from

The present invention relates to a process of gold and copper recovery from gold-containing copper ores obtained from mixed oxide-sulfide copper ore bodies by a series of flotation stages More specifically, the present invention relates to a process of gold and copper recovery whereby gold-containing ores obtained from

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Sources of Copper Ore Copper Development Association of South

Mining Dissolved copper from deep underground cools to form the primary orebody To a large extent, copper oxide and sulfides are naturally separated in nature As such Ground ore is mixed with xanthate reagents (for example, pine oil), which reacts with the copper sulfide mineral to make it hydrophobic on its surface

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Minerals Free Full-Text Comparison of Adsorption of Phenol O-O

Feb 14, 2017 Leaching-solvent extraction-electrowinning (L-SX-EW) and froth flotation are the two methods to beneficiate these ores, of which froth flotation is more economic Particularly for mixed copper sulfide and oxide ores (e g , Minto Mine in Yukon, Canada) that are not amenable to L-SX-EW, the development of

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Copper Oxide Flotation using Collector Mixture of Benzohydroxamic

abundant reserves Majority of sulphide deposits have oxidized zone on the top, and some oxidation deposits are oxidized to become the large and medium-sized oxidation deposits 1 However, most copper oxide ore have the problems such as high slime, poor floatability, complex ore property and low flotation recovery,

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Axis House - Mining Technology

Axis House also has a proprietary range of ready-to-dose liquid sulphide collectors, each targeting specific ore types and sulphide minerals, promoting metal selectivity and recovery The company's frother Flotation of Mixed Copper Oxide and Sulphide Minerals with Hydroxamate Collectors Many copper sulphide mines

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MEI Blog: Challenges in copper flotation

Sep 10, 2011 1 Internal: Due to mixed copper ore minerals like oxides, carbonates, chrysocolla associated with primary-secondary copper sulphides like chacocite, covellite, chacopyrite, bornite Single flotation step may not yield results 2 Species: Due to a group/ species of base metal sulphides with or without precious

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an investigation of copper recovery from a sulphide oxide ore

As a result, research into the improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime The processing

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Acid leaching of oxidesulfide copper ore prior the flotation - doiSerbia

Jul 17, 2014 leaching, achieving an efficiency in the flotation concentration stage higher than 75 Based on the performed experimental results, the flow sheet for processing of the mixed oxide-sulfide copper ore is proposed Keywords: oxidesulfide copper ore, leaching, flotation, increase of copper recovery

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A Multistage Sulphidisation Flotation Procedure - Semantic Scholar

Keywords Froth flotation, Sulphidisation, Copper oxide ore, Mineralogy Generally copper oxide minerals do not respond well to traditional sulphide copper collectors and require alternative flotation techniques to concentrate the copper oxides 2 The ore is then suspended in slurry and mixed with reagent or

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Copper Mining and Processing: Processing of Copper Ores

The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the This process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps: 1) froth flotation,

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Treatment of Mixed Sulfide Oxide Ores of Copper - 911 Metallurgist

Where the oxidized minerals in a mixed ore consist largely of the carbonates and cuprite, a filming treatment and sulfidizing flotation appears to offer the greatest advantage Both sulfide and oxidized minerals are recovered in the same concentrate and sent to the

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Hydroxamate Collectors - 911 Metallurgist

Mar 17, 2017 Let me point you to two good papers on the flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors A great detailed thesis called An Investigation of Copper Recovery from a Sulphide-Oxide Ore with a Mixed Collector System and one called Flotation of mixed

read more +

an investigation of copper recovery from a sulphide oxide ore

As a result, research into the improvement of sulphide-oxide copper ores processing through the use of mixed collector systems has surged The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime The processing

read more +

Flotation of mixed copper oxide and sulphide minerals with xanthate

Dec 20, 2017 Request (PDF) Flotation of mixed c Sherwood Copper's Minto Mine processes a high grade coppergold deposit in Yukon, Canada The ore mined is from a primary copper sulphide deposit with separate additional deposits of copper oxides In conjunction with Ausmelt Chemicals, Minto is currently

read more +

Flotation of mixed copper oxide and sulphide minerals with xanthate

From previous flotation investigations of mixed copper oxide and sulphide minerals using xanthate and hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector on sulphide recovery as the sulphide and oxide minerals occurred naturally together In the case of the Minto operation the

read more +