roasting of copper and nickel ore and ore concentrates

Process for the partial roasting of copper

Process for the removal of arsenic and / or antimony sulphides from copper nickel and / or gold containing ore particl The ore particles are introduced into a reactor wherein a fluidizing gas is injected into the reactor to form a fluidized bed containing at least a portion of the ore particl The ore particles are heated in the presence of inert particles to a temperature between 500...

Extraction of Nickel from Garnierite Laterite Ore Using

comprised of oxide ores 1 Because of the low grade of nickel ore mined from mines most of the nickel concentrate can be obtained after the beneficiation process before smelting Nickel ores are usually divided into three types Nickel sulfide nickel oxide and nickel arsenide Nickel arsenide...

nickel ore roasting reaction

nickel ore roasting reaction extracting nickel from its ore by reduction Apr 24 2010 Nickel is extracted from its ores by conventional roasting and reduction processes which yield a metal of greater than 75 purity Final purification of nickel oxides is performed via the Mond process which increases the nickel concentrate to greater than...

Study on Mineral Separation

A new mineral processing and metallurgy technology was proposed which was that the ferro-nickel concentrate was prepared from laterite ore by coal-based direct reduction Under the reduction of cheap reductant and the catalysis of composite additives the effects of coal-based direct reduction were enhanced and the ferro-nickel was extracted...

Extractive Metallurgy of Nickel Cobalt and Platinum Group

Chapter 15 - Production of Nickel Concentrate from Ground Sulfide Ore Pages 171-189 Chapter 16 - Separation of Chalcopyrite from Pentlandite by Flotation Pages 191-198 Chapter 17 - Smelting of Nickel Sulfide Concentrates by Roasting and Electric Furnace Smelting Pages 199-214...

Roasting and Leaching Bulk Copper

roasting and leaching a bulk copper-zinc sulfide concentrate and the subsequent separation of the metals from the leach solution by electro-lytic deposition The present practice of concentrating copper-zinc ores consists of two flotation processes one of Which involves selective flotation for the recovery of the sulfides of each metal...

US5074910A

The present invention is a process to recover precious metals from sulfide or 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 300 176 and 600 176 C while stirring The process converts precious metals in the elemental and sulfide forms into...

Copper processing

Copper processing - Copper processing - Roasting smelting and converting Once a concentrate has been produced containing copper and other metals of value such as gold and silver the next step is to remove impurity elements In older processes the concentrate containing between 5 and 10 percent water is first roasted in a cylindrical refractory-lined furnace of either the hearth or...

Gold Ore Roasting Techniques

Metallurgical ContentRecover Gold by Roasting Pyrite OreRoasting of flotation concentratesRoasting Arsenopyrite Ore for GoldRoasting and leaching a sulphide concentrateRoasting and Processing Sulpho-telluride ore to recover goldFluoSolids Roasting SystemRoasting with a FluoSolids reactorWhy use Salts in the roasting processROASTING WITH SODA ASHGOLD LOSSES IN ROASTINGCalcination Roasting...

Extraction of metals from complex sulfide nickel

Therefore pre-activation of nickel sulfide concentrate such as sulfating roasting or chlorinating roasting has extensive applicability to treatment of multi-metal ore and is a potential way in...

Copper One more ore processing

KAZ Minerals presentsCopper is one of the top seven metals known since the ancient time Actually humankind knows over 170 copper-containing minerals Coppe...

Segregation

Oct 17 1978 0183 32 Copper is separately recovered from at least one nickeliferous sulfidic material selected from the group consisting of ore ore concentrates mattes or other metallurgical intermediates by roasting the sulfidic material to produce a calcine mixing the calcine with a particulate carbonaceous reductant and with at least one halide heat transformable to halogen or to hydrogen halide at a...

Nickel smelting producing

Nickel smelting Extraction and purification Nickel is recovered through extractive metallurgy it is extracted from its ores by conventional roasting and reduction processes that yield a metal of greater than 75 purity In many stainless steel applications 75 pure nickel can be used without further purification depending on the composition of the impuriti...

Pyrometallurgy Towards Clean Metallurgical Processing 2012

minerals of the ores mined for copper iron nickel arsenic in these minerals volatilizes under the proper the calcine during the roasting step Much literature has been published on the c 1996 for Chilean copper concentrates Luganov 2005 for Westem Australian nickel concentrates conditions for each concentrate the gas phase for eacl...

copper ore concentrate processing

Copper processing - Roasting smelting and converting In the hydrometallurgical processes the ore or concentrate is brought into close contact with a leach solution frequently sulfuric acid that dissolves the copper and leaves a residue of gangue and frequently precious metals...

sulphatising roasting of nickel concentrate worldcrushers

Mar 30 2013 0183 32 Roasting of copper and nickel ore and ore concentrat Gulin supply Mining and construction equipment for mineral handling The crushing screening washing...

Separation Of Nickel From Nickel Ore

Nickel Ore Process Nickel Ore Mining Equipment Xinhai Collector and frother will be used in order to better results a basic principle of coppersulfide nickel ore process is that it is better to let copper assimilate into nickel ore rather than the opposite for it is easier to recovery cooper from nickel concentrate Copper nickel ore flotation...

PDF PARTIAL ROASTING OF COPPER CONCENTRATE WITH

PARTIAL ROASTING OF COPPER CONCENTRATE WITH STABILISATION OF ARSENIC AND MERCURY 197 Holmström1 L Hedström1 K Lundholm1 and M Andersson1 and L Nevatalo2 1 Outotec Sweden AB Gymnasievägen 14 PO Box 745 SE-93127 Skellefte 229 Sweden Corresponding author larshedstrom outotec 2 Outotec Research Center Pori Kuparitie 10 PO Box 69 FI...

roasting of copper and nickel ore and ore concentrates

Patent EP1157139A1 - Treatment of metal sulphide concentrates by Copper Various roasting techniques in the recovery of copper are described in the In the nickel industry Falconbπdge17 24 and Inco25 29 have worked on Sulphide ore concentrates containing platinum group...

machine concentrate nickel ore

Roasting Of Copper And Nickel Ore And Ore Concentrat get more nickel ore machinery barkboats...

Nickel Ore

The smelting of ferronickel using lean nickel ores usually starts with roasting calcining of the ore mixture with limestone one third of the ore anthracite 1/10 of the ore amount and recycled dust Roasting is carried out in rotary kilns 3 m in diameter 75 m in length with a hot zone length of 9 to 12 m in the case of lean ore...

Producing copper from ore to metal

Ensure that you get the best processing technology for your needs Producing copper from ores concentrates or secondary raw materials is an intricate and complex process Our comprehensive portfolio of technologies and services covers the entire ore to metal value chain...

ROASTING OF SULFIDE MINERALS

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...

Roasting of Copper and Nickel ore and ore Concentrates

roasting of copper and nickel ore and ore concentrat The roasting of sulfide ores and concentrates is an important process step in the pyrite roasting zinc roasting copper roasting nickel chloride pyrohydrolysis Read More Patent US4168217 Roast-leach copper recovery Google Patents get...

sand nickel concentrates machine

Roasting Of Copper And Nickel Ore And Ore Concentrat Roasting Of Copper And Nickel Ore And Ore Concentrat We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment milling equipment mineral processing equipment and building materials equipment Get A Quote...

Chloridizing Roasting Process for a Complex Sulfide

Oct 26 2012 0183 32 This paper describes a chloridizing roasting process applied to two types of nickel and copper-bearing sulfide concentrat One was copper rich and the other nickel rich The paper gives a full account of the process as investigated in various batch roasters and in multiple hearth and rotary roasters For commercial viability the paper finally examines the rotary furnace as the preferred...

OUTOTEC ROASTING SOLUTIONS

technologies for concentrates and or Safe easy and cost-efficient to operate they offer low waste generation and high availability gold copper nickel Two-stage roasting partial roasting dead roasting BFB Removal of As partial roasting Removal of S and C dead roasting...

Extraction of metals from complex sulfide nickel

Apr 11 2017 0183 32 The recovery of valuable metals from complex sulfide concentrates was investigated via chlorination roasting followed by water leaching A reaction process is proposed on the basis of previous studies and the results of our preliminary experiments During the process various process parameters were studied including the roasting temperature the addition of NH4Cl the roasting time the...

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