ammonia used in making copper ore concentrate
LKAB and Boliden Collaborate to Recycle Mining Waste
2021 11 19 The leading Swedish mining companies LKAB and Boliden have signed an agreement and will begin working together to investigate the possibility of extracting pyrite concentrate from mining waste at the Boliden Aitik mine which LKAB will subsequently process into fossil free sulphuric acid The sulphuric acid will then be used in processes for
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ammonia used in making copper ore concentrate
Introduction Ammonia leaching is frequently used in Nickel processingExtraction and refining Britannica The extraction of nickel from ore follows much the same route as copper and indeed do not produce the same reaction heats making necessary the use of energy Nickel concentrates may be leached with sulfuric acid or ammonia or they The
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PDF THE IMPORTANCE OF MINERALS AND MINING
2019 9 10 Haul trucks are rigid trucks that are used in open pit mining to carry loads ranging from 50 to 450 tons They are generally used in the larger operations mining copper gold iron ore coal or oil sands The largest trucks cost about 3.5 million The largest tires are about 14ft in diameter cost over 65 000 and due to the extremely tough
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Aqueous ammonia oxidative leach and recovery of metal
The ore is preferably sized or ground to at least 150 mesh i.e it passes through a 150 mesh Tyler screen and will leach more readily than coarse ore Table 2 shows the copper recovery by leaching 150 mesh and 325 mesh ore Most of our data represents 150 mesh ore while the Arizona porphoryl flotation concentrate is used as received.
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Physical pre concentration and ammonium leaching of
2021 10 10 For recovery of copper in the copper concentrate copper concentrate with different size was used as raw material of leaching using environmentally friendly ammonium salt leaching system 3 mol/L ammonia solution and 2 mol/L ammonium chloride solution were used as
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How To Make Copper Concentrate
How To Make Copper Acetate from CopperThoughtCo Sep 03 2019 Make Copper Sulfate Copper sulfate can be used to grow bright blue crystals Make Sodium Acetate Hot Ice Sodium acetate is produced from the reaction between baking soda and vinegar Make Ammonium Nitrate Make ammonium nitrate by reacting nitric acid and ammonia.
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Molybdenum Processing
The less dense ore rises in the froth to be collected while the gangue sinks to be discarded Flotation separates the metallic minerals from the gangue this way and in the case of copper/ molybdenum ores separates molybdenite from copper sulphide The resulting MoS 2 concentrate contains between 85 and 92 MoS 2 Further treatment by
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cyanide ammonia leaching of copper gold ores
Research on leaching of carbonaceous gold ore with copper 15 06 2019 0183 32 For carbonaceous gold ore and its concentrates gold extraction by direct cyanidation is usually low due to the known preg robbing effect The leaching behavior of a carbonaceous gold ore with a high content of dolomite in copper ammonia thiosulfate solutions was investigated
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PDF Chapter 6 Copper Production Technology
1996 11 20 Spain made the early advances in copper explo ration and mining methods For example the Ro mans found nearly 100 lens shaped ore bodies in the Rio Tinto copper district Modern geologists have found only a few additional deposits and almost all of Rio Tinto’s modern production has been from ore first discovered by the Remans.3
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PDF Paper 3 Extended October/November 2006
2019 1 29 6 An ore of copper is the mineral chalcopyrite This is a mixed sulphide of iron and copper a Analysis of a sample of this ore shows that 13.80 g of the ore contained 4.80 g of copper 4.20 g of iron and the rest sulphur Complete the table and calculate the
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PDF Acid leaching of oxide–sulfide copper ore prior the
2015 11 26 hydrochloric and nitric acid as well as the ammonia are usually used as the leaching agents in a various copper ore leaching processes 2–12 Copper oxides easily react with sulphuric acid solutions at the room tempe rature producing Cu2 in the aqueous phase Energy consumption can also become an important factor of
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Copper Mining and Extraction Sulfide Ores
Copper can be extracted from its ore by Underground sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore Open pit 90 of ore is mined by this method Ores near the surface can be quarried after removal of the surface layers.
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PDF Paper 3 Extended October/November 2006
2019 1 29 6 An ore of copper is the mineral chalcopyrite This is a mixed sulphide of iron and copper a Analysis of a sample of this ore shows that 13.80 g of the ore contained 4.80 g of copper 4.20 g of iron and the rest sulphur Complete the table and calculate the
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Metallurgy
2006 2 7 In the leaching process developed by Sherritt Gordon Ltd and used at Fort Saskatchewan Alberta the sulphide concentrate is mixed with an ammonia leaching solution and oxygen with compressed air at 689–758 kilopascals kPa and heated to 80 C The nickel copper and cobalt present in the concentrate form soluble ammonia complexes The
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ammonia used in making copper ore concentrate
ammonia used in making copper ore concentrate Environmental Guidelines for Nickel Smelting and Refining used although sulfuric acid solutions are used more often Waste Characteristics Air emissions Sulfur dioxide SO2 is a major air pollutant emitted in the roasting smelting and converting of sulfide ores nickel sulfide concentrates
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PDF The selective leaching of copper from a gold–copper
2020 12 11 cyanide and ammonia have detrimental environmental effects Muir et al 1989 reported that there arefive methodologies for treating copper–gold ores 1 float and produce a copper–gold con centrate for smelting 2 selectively mine and cyanide leach ore with b0.5 Cu as oxidised minerals andb1 as sulphidic minerals
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Ammonia Leaching A New Approach of Copper Industry
2013 12 10 Although copper oxide and pure copper were first used to recover copper due to high solubility in ammonia later on ammonia leaching of sulfide ores was also considered The common method was the use of oxide roasting at high temperatures to convert sulfides to oxides in order to facilitate dissolution in ammonia solutions 1 .
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PDF Copper Ore Processing
2021 10 21 The above mentioned methods also used in the preferential flotation and the oxide copper ore after sulfuration For the oxide copper ore processing For improving the recovery rate and making it is much easier to do the flotation processing it is better to sulphur the oxide copper ore and make it into sulphide copper ore.
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Innovations Technology Changes Forge The Future ..
2021 8 12 Ore Solution CopperOre Concentrate Solution Copper The leaching of the oxide materials is relatively easy and relies on dump vat and agitation leaching using dilute sulfuric acid solutions Leaching sulphide materials whether in ore or concentrate requires a
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Recovery of precious metals from difficult ores
Precious metals such as gold and silver are recovered from difficult to treat ores particularly those containing manganese by lixiviating using an ammonium thiosulfate leach solution containing copper sufficient ammonia to maintain a pH of at least 7.0 and at least 0.05 sulfite ion sulfite and thiosulfate requirements being maintained by the reaction in situ of sulfur dioxide and
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ammonia used in making copper ore concentrate
ammonia used in making copper ore concentrate The products includes five series crusher sand making machine powder grinding mill mineral processing equipment and building materials equipment.Environmental Guidelines For Copper Smelting.gas propane ammonia or wood the fire refined copper is cast into anodes for further refining by electrolytic processes or is cast into shapes
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Ammonia New Type In Making Copper Ore Concentrate
Ammonia New Type In Making Copper Ore Concentrate Sep 21 2020 The concentrate produced from the scavenger cleaner circuit representing roughly 12 of the mill feed is re ground to a P80 of 10 m prior to final cleaning in the low entrainment scavenger recleaner stage The scavenger recleaner concentrate is then combined with the high grade cleaner concentrate to form final concentrate
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CNA
The invention discloses a copper oxide ore flotation agent The copper oxide ore flotation agent comprises by weight 100 170 parts of sodium silicate 150 100 parts of sodium sulfide 20 25 parts copper sulfate 10 17 parts of ammonium dibutyl dithiophosphate 100 170 parts of sodium o ethyl dithiocarbonate and 10 20 parts of terpenic oil.
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PDF Copper Environmental Profile
2019 3 4 copper mining surface and underground mining Due to copper being spread in relatively low concentrations over large areas surface or open pit mining is the predominant mining method for copper in the world After mining copper is produced by one of two process routes pyrometallurgical or hydrometallurgical.
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Copper Ore Processing Methods
2017 4 11 Copper Ore Processing Methods The four major steps in the production of marketable copper are mining concentrating smelting and refining In a few instances however leaching takes the place of concentrating smelting and refining At present although considerable leaching and direct smelting ores are produced the bulk of the copper ore
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PDF Nouryon in the mining industry
2021 11 9 Sodium Hydrosulfide NaSH a widely used copper depressor and ores sulfidizing agent NaSH as copper depressor The product is used to separate copper from an ores concentrate stream by depressing it making use of NaSH´s strong potential to generate H 2 S in an acid media A typical example of this application is the case of
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ammonia used in making copper ore concentrate
ammonia used in making copper ore concentrate 201874 ammonia ammonia plant coke ncentrate iron ore hotpper content element additive ..ld ore with copper by ammonia cyanide leaching Gold extraction was studied from a gold ore withpper by ammonia cyanide leaching in the paper .making it possible to sell them as copper .
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PDF NOVEL DESIGN ASPECTS OF THE TATI ACTIVOX
2009 8 26 concentrate and produce LME grade copper metal cobalt carbonate cake and LME grade nickel metal Ammonia is used as neutralization agent in the cobalt and nickel solvent extraction plants to selectively extract the base metals Ammonia forms a soluble ammonium sulfate product which reports to the raffinate stream.
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Copper Mining and Production Processes Explained
Processes copper mining and production Copper is found in natural ore deposits around the world This page explains copper mining the production route taken from ore containing rock to a final product that is the highest purity commercial metal in existence and used in
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ammonia used in making copper ore concentrate
Characterization and kinetic study on ammonia leaching of 01/05/2014 Particularly the dissociation of NH 4 OH into H 2 O and NH 3 was found to be a crucial step since ammonia is known to be an active contributor to the Cu leaching reaction Besides copper sulphide NH 3 /NH 4 leaching was used for other copper minerals such malachite lowgrade mixed Cu ore tenorite 17−19
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ammonia used in making copper ore concentrate leaching of malachite ore in ammonium sulfate solutionsSciELO In this work the leaching kinetics of malachite in ammonium sulfate solutions was investigated Metal production from any metal source like ore concentrate and Malachite which is an oxidized copper ore can be used to
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Ammonia Used In Making Copper Ore Concentrate
Ammonia Used In Making Copper Ore Concentrate FOB Reference Price Get Latest Price Leaching is the first prerequisite of any hydrometallurgical process.Solutions containing ammonia may allow for selective leaching of the copper from the ore.In this study the leaching kinetics of malachite which is an oxidized copper ore in ammonium nitrate solutions was examined.
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Sulfate precipitation during oxidative ammonium leach of
We claim 1 In a process for recovering a metal of the group consisting of copper zinc and nickel from an ore or concentrate containing such metal in the form of a sulfide mineral wherein the ore or concentrate is subjected to a leaching operation by slurrying it in an aqueous solution containing sufficient ammonium sulfate and free ammonia to leach said metal sulfide from said ore or
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