mixed copper oxide and sulphide minerals processing

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Copper oxide deposits and certain sUlfide deposits are amenable to treatment by heap leaching and SX Ew In this process the ore is mined and placed in heaps and treated with a dilute aqueous solution of SUlfuric acid The copper minerals are dissolved as a soluble copper sulfate These solutions are then mixed with an organic reagent to which the copper is transferred The stripped


ROASTING OF SULFIDE MINERALS In addition to common metals like copper lead zinc and nickel a number of other metals such as antimony bismuth cadmium cobalt mercury and molybdenum occur as sulfide minerals Sulfides are not reduced with the most widely used redu cing agents carbon and hydrogen because the free energy change for the reactions 2MS C=2M CS 2 and MS H 2 =M H

A Brief Intriduction to Copper Oxide Ores Fote Machinery

Mixed type copper oxide ore There are copper oxides and copper sulfides in the mixed type copper oxide ore The composition is complex and the particle size is slightly coarse If the gangue is silicate it can be treated by flotation chemical beneficiation method Free copper oxide and bonded copper oxide Free copper oxide minerals are copper oxide minerals that exist in independent

Marimaca s Drilling Delivers Significant Extensions to

Significant down dip and along strike extensions to mixed oxide secondary sulphide mineralization immediately below the limits of the PEA defined open pit Mar 127 intersected 38m % CuT from 148m extending and broadening the lower grade oxide halo around the MOD; 106m % CuT from 502m incl 58m % CuT from 502m of mixed oxide and secondary sulphides; Mar 35 Extension

Resin gel synthesis and characterisation of copper and

The copper oxide has crystalline structure as shown in Figure below Figure Crystalline structure of copper I oxide showing orientation of copper ions with respect to oxygen ions The copper I oxide mixed with copper I sulphide is then strongly heated in the absence of air to form copper and sulphur 2Cu 2 O Cu 2S

Marimaca s Drilling Delivers Significant Extensions to Oxide Deposit Marimaca

The results were once again very positive with two broad zones of mixed oxide secondary and primary sulphide mineralization intersected up dip from MAR 127 Results included 78m with an average grade of % CuT from 310m and 34m with an average grade

Direct extraction of copper from copper sulfide minerals

Sulfide in the mineral is oxidised to sulfate without the generation of SO 2 or H 2 S The best selective recovery of copper 99 at% from chalcopyrite was obtained with a mixed DES of 20 wt% choline chloride oxalic acid and 80 wt% choline chloride ethylene glycol This demonstrates how design of the Deep Eutectic Solvents can enable increased

World Copper Reports 426 Million Tonne Oxide Copper Resource

Hard Rock Consulting completed the mineral resource estimate of oxide and transition zone mixed oxide and secondary sulphide copper constrained by wireframe modeling and to a maximum search distance of 300m Geostatistics and mineral resource estimation were done with Leapfrog EDGE


Oxide based ores and sulphide based mixed with water and chemicals to coat the copper sulphide particles At end of the process molten copper of approximately percent purity is poured into moulds and cooled to form anodes Refining is the final step

Zaldívar Copper Mine Northern Chile Mining Technology

The main minerals are chalcocite brochantite and chrysocolla and mixed sulphide and oxide copper minerals Primary sulphides are pyrite chalcopyrite and molybdenite To the east of the Portezuelo fault in the main zone ore body where rhyolite is the host rock secondary sulphide mineralisation is dominant 85 90% with the balance of the

Project List ALTA Metallurgical Services

Hierra Mantua Project Cuba Minproc Engineers Acid cure/SX/EW for mixed copper oxide/sulphide ore consulting services for feasibility study 1992 93 Gunpowder Copper Project QLD Australia In Place Leach/SX/EW for sulphide ore Participation in detailed plant design 1989 90 ; Consulting services for leach optimization and introduction of heap leaching 1994 95 Copper

The Application of Xanthate in Froth Flotation Process

Xanthate Application in Copper Froth Flotation In the flotation process of copper ore xanthate mainly reacts with Cu2 Therefore when processing minerals containing more Cu2 on the surface the effect of xanthate is stronger and the order of its action is Cu2S > CuS > Cu5FeS4 > CuFeS2 4 Xanthate Application in Galena Froth Flotation

oxide copper minerals

Copper Production Technology6 1 FIow Sheets for Copper Production Hydrometalluigical Oxide and sulfide oresCopper minerals Inquire Now; Treatment of Mixed Sulfide Oxide Ores of Copper Theoretically the process is perfect After solution of the copper minerals copper is precipitated as oxide by merely heating the solution Inquire Now

Microbial Ecology Assessment of Mixed Copper Oxide/Sulfide

Conference Microbial Ecology Assessment of Mixed Copper Oxide/Sulfide Dump Leach Operation

Direct extraction of copper from copper sulfide minerals using deep eutectic

Sulfide in the mineral is oxidised to sulfate without the generation of SO 2 or H 2 S The best selective recovery of copper 99 at% from chalcopyrite was obtained with a mixed DES of 20 wt% choline chloride oxalic acid and 80 wt% choline chloride ethylene glycol

mixed copper oxide and sulphide minerals processing

At a blend of 70% sulphide ore and 30% oxide ore the rougher scavenger copper recovery was as high as % K Lee D Archibald J McLean Reuter 185 2009Development and optimization of mixed sulphide/oxide copper The Kansanshi Mine First Quantum Minerals Ltd treats a mixed sulphide/oxide coppergold vein deposit


Oxide based ores and sulphide based ores Which do you have Determines the products you ll be pricing •Oxide based leaching solvent extraction electrowinning cathodes •Sulphide based concentration smelting refining concentrates matte blister/anode cathodes Copper Cu sulphide Early in Value Chain Copper ore 1 2% copper Copper concentrate 20 30% copper

Mineralogy of Sulfides Elements GeoScienceWorld

Sulfide surface chemistry is particularly important because of its relevance to the oxidation and breakdown of sulfide minerals and to the processing of mined ores using froth flotation or leaching Investigations using spectroscopic and imaging studies of pristine surfaces in ultra high vacuum UHV conditions have provided information on structure and reactivity at an atomic resolution

Effect of Copper and Iron Ions on the Sulphidizing

The treatment of smelting slag has attracted much attention nowadays This study investigates the influence of Na 2 S CuSO 4 and FeCl 3 on sulphidizing flotation of copper oxide The results show that a proper Cu 2 concentration can increase the sulphidizing effect of copper oxide while Fe3+ inhibits the sulphidizing effect

Principles of Extractive Metallurgy Chemistry

Step 2 Conversion of Fe sulfide ores to Fe oxides through roasting roasting of Chalcopyrite ore [ 2 CuFeS 2 3 O 2 overset{Delta}{longrightarrow} 2 FeO 2 CuS 2 SO 2] Step 3 Smelting mixing with coke/charcoal and heated at high temperatures 800 o C for copper to keep

Development of partial extraction methods to estimate

Studies were conducted by Minera Escondida Ltda MEL between 1995 and 2021 to support an investment decision to open Escondida Norte an enriched porphyry copper deposit adjacent to the Escondida mine and processing facilities Due to the importance of copper iron sulphide minerals in predicting metallurgical performance in both process alternatives a quantitative spatial model of copper

US5074910A Process for recovering precious metals from

The present invention is a process to recover precious metals from sulfide ores It involves chlorinating a mixture of an ore concentrate and salt to form a liquid melt The salt preferably contains potassium chloride This chlorination is carried out at a temperature between 300° and 600° C while stirring The process converts precious metals in the elemental and sulfide forms into

Formation of zinc sulfide species during roasting of ZnO

It is well known that copper and lead oxide minerals except zinc oxide minerals after treatment with Na 2 S can be well collected by xanthate 5 35 The poor zinc recovery is

A Review on Novel Techniques for Chalcopyrite Ore Processing

Hydrometallurgical processing can be effectively applied to oxidized ores containing CuO Cu 2 O carbonate and some silicates and rarely for sulphide ore with chalcocite and covellite as predominant copper mineral King 2021; Stevanovic et al 2021


Table Copper oxide leaching reactions Watlin 2021 14 Table Copper sulfide leaching reactions Watlin 2021 14 Table Important gangue leaching reactions in copper heap leaching Jansen and Taylor 2021 14 Table Summary of reaction rate control 16 Table Dissolution of various copper minerals in sulfuric acid and sodium cyanide solutions

Major Mines & Projects Escondida Mine

Oxide and sulphide leaching streams with 330 ktpa effective cathode capacity Mtpa of concentrate shipments Delivery of OGP1 and OLAP2 supporting our concentrate and leaching strategy 3 concentrator plants extract copper concentrate from sulphide ore by flotation extraction process 2 solvent extraction plants produce copper cathode

Axis House Mining Technology Mining News and Views

Many copper sulphide mines around the world have significant copper oxide ore reserves associated with the larger primary copper sulphide deposit The traditional techniques for processing oxide ores either by leaching SX/EW or flotation have caused many problems for these operations

The Alteration Mechanism of Copper bearing Biotite and

The copper deposits in the world are widely distributed across five continents including more than 150 countries to the proportion of oxide minerals and sulfide minerals in

Copper Mining and Extraction Sulfide Ores

They convert the copper minerals into copper metal We can illustrate the types of process using the example of chalcopyrite CuFeS 2 From the formula it is clear that iron and sulfur have to be removed in order to produce copper The roasting process changes some of the CuFeS 2 to copper oxide; removes some of the sulfur as sulfur dioxide

Copper production & environmental impact

Oxide copper minerals malachite azurite chrysocolla Sulfide copper minerals bornite chalcocite chalcopyrite Occurrence • Copper is distributed in many parts of the world • Copper minerals are divided up into three groups Primary or hypogene minerals found at great depths Oxidised copper minerals commonly formed by copper sulfides exposed to erosion Copper

Project Overview Orla Mining Ltd

Only Oxide and Mixed material is included in the Mineral Reserve all Sulphide material is treated as waste 3 The minimum cut off grade used for ore/waste determination is NSR>= $/tonne for Oxide and $ for Mixed at the La Pava deposit and $/tonne for Oxide and $/tonne for Mixed

Lubembe Sulphide and Oxide Ores Metorex

A scoping study completed in early 2021 confirmed the potential to mine and process mixed sulphide and oxide ores at Lubembe The Mineral Resource of 93 million tons at a grade of % copper will be mined by open pit methods at a rate of run of mine ore The copper containing minerals will first be recovered via the flotation method

Extraction of Copper from a Refractory Copper Oxide Ore by

Mineral Processing Experiment Research of Low Grade and Fine Size Inseparable Lead Zinc OreJ Mclean and Reuter Flotation of mixed copper oxide and sulphide minerals with xanthate and hydroxamate collectors Minerals Engineering Vol 22 2021 401 DOI / [4] G Senanayake A review of chloride assisted copper sulfide

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