Email:

Popular Searches

  • Roasting of Copper and Nickel ore and ore Concentrat roasting of copper and nickel ore and ore concentratesThe roasting of sulfide ores and concentrates is an important process step in the pyrite roasting zinc roaОнлайн-запрос...

  • group metals PGM from UG-2 ores place stringent requirements with regard to chromite content about 28 per cent upon feed material to the plant The conventional process sequence involves smelting of a flotation concentrate to remove gangue material and to produce an iron-nickel-copper-PGM matte converting by blowing air through this...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • Outotec Roasting Solutions Roasting Of Copper And Nickel Ore And Ore Concentrat 2017-2-13Copper roaster Dead roasting exothermic BFB CFB Total sulfur elimination product is pure oxide Temp 550950 C Oxygen 35 vol ZnS FeS 2 CuS MeS Au MeO Sulfuric acid Steam Zinc pyrite gold copper nickel Two-stage roasting partial roasting dead roasting BFB Removal of As partial roasting...

  • Partial roasting of nickel sulfide ores and/or concentrates to control matte grade has been practiced for many years Today this process is carried out in fluidized bed roasters CE I3Rs 23 24 or in multiple hearth roasters 25 typically at 600-700 176 C...

  • Then the concentrate is melted until it becomes a liquid matte which usually contains around 45 nickel The nickel concentrate from sulfide ores normally contains approximately 10 Ni 2 Cu 40 Fe and 30 S Various processes may be used depending on the types of ores...

  • 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...

  • Lecture 19 Roasting of zinc and lead concentrat The weight of roasted ore and the as sulphur in the roasted ore theoretical Solution Proximate analysis of concentrate is Zn S L 895 Fe S L 35 Si O 6 70 Basis 1000 kg f zinc concentrate Roasting reactions ore b The theoretical vol of air used in roasting and for combustion of coal...

  • 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...

  • All nickel ores have relatively low nickel content the classification is as follows high-grade nickel ore has Ni content greater than 18 middle-grade nickel ore has Ni content between 13-17 low-grade nickel ore has Ni content between 06-12 Nickel is continuously mined even at these low percentages of ores because it is in high...

  • 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...

  • 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...

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

  • Ammonium chloride could react with nickel/copper oxides to produce intermediate complex At the temperature range of 280 340 oC these complexes further decomposed to the corresponding simple chlorid Roasting sulfide concentrate using NH 4 Cl is effective for complex or...

  • conjunction with copper bearing ores are mined from underground Following is a after the reduction roast step Sulfidic ore processing Modern technology uses electric smelting or flash smelting Flash smelting is the most of sulfide ores nickel sulfide concentrates contain 6-20 nickel...

  • A copper ore is a mixture of copper minerals and other materials in the rock called gangue from which it is economically viable to extract the metal A typical copper ore contains between 05 and 20 copper A high grade ore produces a high yield of metal A...

  • 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...

  • 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...

  • 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...

  • 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...

  • 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...

  • In this study segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore The garnierite laterite ore containing 072 Ni 0029 Co 865 Fe 2966 MgO and 3786 SiO2 was collected in the Mojiang area of China Garnierite was the Ni-bearing mineral the other main minerals were potash feldspar forsterite tremolite halloysite quartz and...

  • 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...

  • 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 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...

Get Solutions & Quotation

If you can not chat online or send an e-mail at the moment, you can fill out the following form, leaving your contact information, we will contact you as soon as possible to meet any of your requirements!