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Pyro metallurgical extraction of copper from sulfide ores

  • (PDF) Advanced Review on Extraction of Nickel from Primary

    Though sulfide ores after concentration are generally treated by the pyro-metallurgical route, most processes for lateritic ores deal with either the acid leaching at ambient temperature and

  • The cuprex metal extraction process: Recovering copper

    The Cuprex metal extraction process produces cathode-grade copper using a hydrometallurgical process based on chloride leaching of sulfide ore concentrates. The process incorporates several novel steps to overcome the major problems associated with earlier chloride-based processes, including mild leaching conditions using ferric chloride as leachant and solvent extraction of copper usinga


    (copper sulfide and other metal sulfides), blast furnace slag (primarily silicates), and lead bullion. All layers are then drained off. The speiss and matte are sold to copper smelters for recovery of copper and precious metals. The blast furnace slag, which contains zinc, iron, silica, and lime, is stored in piles and is partially recycled.

  • Metals Extraction from Sulfide Ores with Microorganisms

    Jan 02, 2019· Bioleaching is the metal-extracting practice from sulfides and/or iron-containing ores by means of microorganisms. It is a specified biohydrometallurgical approach in which either the metabolic activities or microbes products are used to convert insoluble compounds into soluble form, which can then be recovered later [].Biological product synthesis by these microorganisms includes certain

  • Innovations: Introduction to Copper: Mining & Extraction

    The barren rock, or gangue has to be separated from the sulfide minerals in order to smelt the metallic copper from the ore. By far the greatest proportion of copper is extracted from the sulfides of copper, iron and sometimes other metals. Such ores originate from sulfur-bearing volcanic magmas, which have separated into metal sulfides and siliceous melts.

  • Hydrometallurgical Processing of Low-Grade Sulfide Ore and

    The authors describe the opportunities of low-grade sulfide ores and mine waste processing with heap and bacterial leaching methods. By the example of gold and silver ores, we analyzed specific issues and processing technologies for heap leaching intensification in severe climatic conditions. The paper presents perspectives for heap leaching of sulfide and mixed ores from the Udokan (Russia

  • Difference Between Hydrometallurgy and Pyrometallurgy

    Feb 16, 2020· Figure 01: Hydrometallurgy for Copper Extraction. Moreover, this method is mainly suitable for metal sulfide ores. Here, the metal sulfide is heated in the presence of air to a high temperature; this temperature can cause oxygen in the air to react with the sulfide, forming sulfur dioxide, which leaves the metal oxide.


    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

  • pyro metallurgical extraction of copper from sulfide ores

    A Review on Novel Techniques for Chalcopyrite Ore Processing566 Кб. Pyro metallurgical extraction involves heating the mineral cake in a blast furnace; o xygen pressure and temperature are carefully controlled.Th is method is applied to sulfide flotation concentrates rather than ores and is economically feasible for copper rich feed for large scale operations.

  • Investigation of Affecting Parameters on Heap Leaching

    grade copper reserves and increasing global demand of copper metal caused that hydrometallurgical and heap leaching method has been designed and used. These method, in addition to being less pollution to the environment is included, provides the extraction of copper from low grade oxide and sulfide ores

  • Recovery of Copper from Copper Sulfide Concentrate by

    vering copper from ore. The extraction of copper from ore has commonly been performed using mainly pyro-metallurgical, hydrometallurgical, and biochemical processes [3]. In traditional pyrometallurgica[1]- l process, various gases released produced unacceptable air pollution, and metallurgy equipments always suffered serious

  • A new way of extracting copper MIT News Massachusetts

    Jun 28, 2017· The MIT researchers found a promising method of forming liquid copper metal and sulfur gas in their cell from an electrolyte composed of barium sulfide, lanthanum sulfide, and copper sulfide, which yields greater than 99.9 percent pure copper. This purity is equivalent to the best current copper production methods.

  • Solvometallurgical process for extraction of copper from

    In summary, pyro-metallurgy, hydrometallurgy and bioleaching all have their limitations, and hence it is important to develop new green and sustainable metallurgy technologies to improve the efficiency of copper extraction from copper sulfide ores. Solvometallurgy is an emerging technology for metal proces-sing, where little or no water is

  • Pyro Metallurgical Extraction Of Copper From Sulfide Ores

    pyro metallurgical extraction of copper from sulfide ores. Copper extraction Wikipedia Copper extraction refers to the methods used to obtaining copper from its or The conversion If the ore is primarily sulfide copper minerals such as chalcopyrite, the ore is crushed and A key objective in the metallurgical treatment of any ore is the.

  • Pyrometallurgical Process - an overview ScienceDirect Topics

    Figure 2.1.1 shows the variation of the standard free energy of formation of sulfides of interest in metal extraction. They are shown for amounts of compounds containing 1/2S 2 gas to allow direct comparison of the stability of the various compounds. Those that are more stable are shown below the less stable ones, thus indicating which element can reduce which sulfide when all the species are

  • Chapter 6 Copper Production Technology

    Sulfide ores (0.5-2% Cu) I Comminution 1 II I FIotation I Concent rates (20-30% Cu) 1 6-1.-FIow Sheets for Copper Production Hydrometalluigical Oxide and sulfide ores (0.3-2.0% Cu) Leaching Pregnant Ieachate (20-50% Cu) Precipitation Solvent extract ion I Smelting I I Cement copper 1 (85-90% Cu) Matte (50-75% Cu) II I Converting i Anode

  • 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

  • Review of copper pyrometallurgical practice: Today and

    Dec 06, 2020· The recycling approaches mainly follow the mechanical pre-treatment with subsequent pyro-and/or hydro-metallurgical of sulfide copper concentrates. extraction from ores. Per ton of copper

  • Establishing thE ProcEss MinEralogy of gold orEs

    1998). The presence of copper in the ore at above ±0.3% concentration may make direct cyanidation uneconomic without re-treating the Cu(CN)2 formed in leaching, through processes such as SART and Hannah. Iron sulfide ores and arsenic sulfide ores: Iron sulfide ores and arsenic sulfide ores host different proportions

  • Extraction Of Copper Mining, Concentration, Smelting

    Copper Extraction Metallurgy. Extraction Of Copper: Application Of Metallurgy. Copper Mining: The commonest ore used in the extraction of copper is Chalcopyrite (CuFeS 2) also known as Copper Pyrites and other such sulphides. The percentage of copper in the actual ore is too low for direct extraction of copper to be viable.

  • Copper Ore Types: Sulfides vs. Oxides An Investor's

    Nov 09, 2020· There are two main types of copper ore of interest: copper oxide ores and copper sulfide ores. Both ore types can be economically mined, but they are processed in different ways.

  • 23.2: Principles of Extractive Metallurgy - Chemistry

    Aug 25, 2020· Step 2: Conversion of Fe sulfide ores to Fe oxides through roasting (e.g., 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 (i.e 800 o C) for copper to keep Cu from remaining in sulfide form).

  • The Extraction of Copper - Chemistry LibreTexts

    Aug 21, 2020· Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite (\(CuFeS_2\)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of

  • Discovering Metals A Historical Overview

    These were primarily copper sulfide ores. An ore is a natural mineral that can be mined and treated for the extraction of any of its compo-nents, metallic or otherwise. The metallic com-ponent of copper sulfide minerals is copper. Sulfur is one of the nonmetallic elements. Ex-traction of copper from copper sulfide ores pro-

  • Copper Mining and Extraction: Oxide Ores

    Most of the copper ores mined today are oxide or sulfide ores. Extraction of sulfide ores is covered in more detail in Copper Mining and Extraction: Sulfide Ores (1114), but is introduced here because an important by-product of this process is used for the extraction of oxide ores. Pyroprocessing Sulfide Ores Provides Acid for Leaching. The

  • what are the hazards associated with extracting nickel

    Jun 11, 2013· Mineral Processing Plants Construction Safety Association of Ontario. metals extracted using these methods are nickel, copper, zinc, cobalt, and lead.Other metals Sulphide ores are most common and there are various health and environmental hazards associated with them. Chemical metallurgical extraction »More detailed

  • Pyrometallurgy Britannica

    Pyrometallurgy, extraction and purification of metals by processes involving the application of heat. The most important operations are roasting, smelting, and refining. Roasting, or heating in air without fusion, transforms sulfide ores into oxides, the sulfur escaping as sulfur dioxide, a gas.

  • COPPER Copper production - Repository

    About 80 % of primary copper production comes from low-grade or poor sulfide ores. After enrichment steps, the copper concentrates are usually treated by pyrometallurgical methods. Generally, copper extraction follows the sequence (see Figure below): 1. Beneficiation by froth flotation of ore to give copper concentrate

  • Extractive Metallurgy Natural Resources Research

    Pyrometallurgy/High Temp ProcessingThis program is focused on performing applied research in the areas of agglomeration, pelletizing, granulation, induration, sintering and associated physical/metallurgical quality assessment, primarily associated with the iron ore and direct-reduced iron industries.Capabilities of the laboratory include:Batch BallingMini-Pot FurnacePot Grate


    used for metal extraction from sulphide ores. (Slide 9-14) Pyro-metallurgical Hydro-metallurgical Electro-metallurgical Copper Ore blister Cu 14 Chalcopyrite (CuFeS2) Sulphides of metal such Fe, Pb, Zn and silicates Matte smelting in a reverberatory CompOuent's

  • How Hydrometallurgy and the SX/EW Process Made Copper

    To be applicable to this process, the ores must contain copper minerals in sulfide form; as mineral such as Chalcocite (Cu 2 S), Chalcopyrite (CuFeS 2) and Covellite (CuS) . In the concentrating operations these minerals are separated from the gangue material of the ore, that might contain as little as 0.5% copper to form a concentrate

  • Sulfide Mining Overview - Save Our Sky Blue Waters

    Technical Document: Extraction and Beneficiation of Ore and Minerals, Volume 4: Copper. US Environmental Protection Agency, Office of Solid Waste. Washington D.C. 20 Extraction and Beneficiation or Ore and Minerals, Volume 4: Copper. US Environmental Protection Agency, Office of Solid Waste, 2004. 21 Extraction and Beneficiation or Ore and

  • Method of gold extraction from sulphide gold-bearing ores

    The invention relates to hydrometallurgy of precious metals and can be used for the extraction of gold from refractory ores and concentrates. For multi-stage technology of gold extraction plant for intrusion resistant gold-bearing ores has developed a number of pyro-and hydrometallurgical methods, while bacterial leaching shows good economic performance and environmental safety (metallurgy

  • Lecture 14: Pyro metallurgical extraction (Roasting

    In Pyro metallurgicalextraction of metal, thermal energy is one of the important inputs. Typically,sulphide ores of copper, zinc and lead are roasted either partially or completely. Typ d for hydro metallurgical extraction of lead.

  • Pyrometallurgy Metallurgy for Dummies

    Pyrometallurgy is a branch of extractive metallurgy. Pyrometallurgy Basic Principle. The basic premise of most pyrometallurgical operations is simple: high-temperature chemistry is employed to segregate valuable metals in one phase while rejecting gangue and impurities in another phase. In most instances, both phases are molten (such as the matte and slag in a conventional copper smelting

  • Nickel and its extraction - SlideShare

    May 03, 2018· 2.EXTRACTION OF NICKEL The extraction of nickel and ferronickel from laterite and sulfide ores Laterite ores occur as saprolite, smectite and limonite layers because of their different compositions and mineralogy, they require different methods of extraction (CuNiFe) Saprolite , which has a relatively low iron content

  • copper extraction and purification - chemguide

    Extracting copper from other ores. Copper can be extracted from non-sulphide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution.

  • Direct extraction of copper from copper sulfide minerals

    Direct extraction of copper from copper sulfide minerals using deep eutectic solvents Syahrie Anggara , a Francesca Bevan , a Robert C. Harris , a Jennifer M. Hartley , ab Gero Frisch , b Gawen R. T. Jenkin c and Andrew P. Abbott * a

  • Hydrometallurgy - Wikipedia

    Hydrometallurgy is a technique within the field of extractive metallurgy, the obtaining of metals from their ores.Hydrometallurgy involve the use of aqueous solutions for the recovery of metals from ores, concentrates, and recycled or residual materials. Processing techniques that complement hydrometallurgy are pyrometallurgy, vapour metallurgy, and molten salt electrometallurgy.

  • Mining and Metallurgical Waste Management in the

    In contrast, pyro­ metallurgical wastes are numerous and present a great physical and chemical diversity. Spent leached ore The hydrometallurgical wastes correspond to leaching residues released at the end of the leaching operations. The 405 Figure 2. Bloc diagram of metallurgical processing of sulfide copper concentrates.

  • Pyrometallurgy - an overview ScienceDirect Topics

    Industrial grade pyrometallurgy is usually direct put the WPCBs containing 5%40% copper into the blast furnace, and the product is black copper containing 70%85% copper. The black copper is then poured into the converter, which makes an oxidizing slag of Pb, Zn, and Sn, and the copper that contains 95% copper

  • Metallurgy of copper - SlideShare

    Dec 06, 2017· IMPORTANT ORES OF COPPER 1. Copper pyrite or chalcopyrite CuFeS2 2. Chalcocite or copper glance Cu2S 3. Malachite green [CuCO3.Cu(OH)2] 4. Azurite blue [2CuCO3.Cu(OH)2] 5. Bornite or Peacock ore [3Cu2S.Fe2S3] 6. Cuprite Cu2O 3. EXTRACTION OF COPPER Copper is mainly extracted from its sulfide ores by smelting. Following steps are

  • Reinventing copper extraction with electricity MIT News

    May 01, 2014· Copper is so valuable that its theft from worksites and power substations has become a national problem. Replacing the lost copper with new metal produced by the traditional method of cooking copper sulfide ores requires a multistep process to extract the copper and produces troublesome byproducts.

  • Sulfide Ore Treatment Gold - Silver - Copper - Cobalt

    Oct 20, 2017· A procedure was developed for recovering gold, silver, cobalt, copper, and zinc from a massive sulfide ore by a hydro-metallurgical process. The procedure consists of (1) oxygen pressure leaching; (2) iron, arsenic, and copper removal from the leach solution by precipitation; (3) selective extraction of cobalt and zinc from solution; (4) electro-deposition of the cobalt and zinc from the strip

  • Microbes and mineral recovery: Bioleaching of copper, gold

    Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment. Bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the oxidation of sulfide minerals. The leaching of sulfide minerals distinguishes bioleaching from

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