2 edition of Matte Smelting of Copper Ores and Concentrates in the Electric Furnace. found in the catalog.
Matte Smelting of Copper Ores and Concentrates in the Electric Furnace.
Quebec. Dept. of Mines. Laboratories Branch.
|Series||Quebec Dept. of Mines Preliminary Report -- 270|
The product of melted sulfides is called a matte, and is highly corrosive liquid. Converting that molten sulfide matte to metal is called smelting. Small scale smelting can be done in a crucible – in fact that is what a fire assay is. When smelting assays are done on high sulfide ores, a couple of iron nails are added to the mix. Purchase Extractive Metallurgy of Copper - 5th Edition. Print Book & E-Book. ISBN ,
Several different processes can be used for copper production. The traditional process is based on roasting, smelting in reverbatory furnaces (or electric furnaces furnace s for more complex ores), producing matte (copper-iron sulfide), and converting for production of blister copper, which is further refined to cathode copper. Sulfide Ores Productionof Nickel Concentratefrom Ground Sulfide Ore j Separation of Chalcopyritefrom Pentlandite by Flotation Smeltingof Nickel Sulfide Concentratesby Roasting and Electric FurnaceSmelting Flash Smeltingof Nickel Sulfide Concentrates Converting-Final OxidationofIron From MoltenMatte v.
Smelting of Olympic Dam Copper Concentrates; The role of the Zinc-Lead Blast Furnace in Processing complex sulfides; Design and Operation of the Electric Furnace in Smelting Complex Sulphides; Basic Science I. Electrochemical Determination of Arsenide-Oxide Equilibria; Vacuum Refining of Copper Matte; Recovery of Elemental Sulfur from Massive. The Mitsubishi process in the s -- Direct-to-copper flash smelting. Advantages and disadvantages. The ideal direct-to-copper process. Industrial single furnace direct-to-copper smelting. Chemistry. Effect of slag composition on % Cu-in-slag. Industrial details. Control. Electric furnace Cu-from-slag recovery. Cu-in-slag limitation of direct.
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Copper smelting plants separate elemental copper from copper concentrates through multiple sulphide oxidizing stages. The considered smelting process includes a continuously functioning flash smelting furnace (FSF) and several Pierce-Smith converters operated in batches.
Automating scheduling provides advisory information to operators. Several processes can be used for copper production. The traditional process is based on roasting, smelting in reverbatory furnaces (or electric furnaces for more complex ores), producing matte (copper-iron sulfide), and converting for production of blister copper, which is further refined to cathode copper.
Flash furnace smelting combines the operations of roasting and smelting to produce a high-grade copper matte from concentrates and flux. In flash smelting, dried ore concentrates and finely ground fluxes are injected together with oxygen and preheated air (or a mixture of both), into a furnace maintained at approximately °C (°F).
The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows.
By the end of the smelt the copper had separated from the slag, which was tapped off. SOURCE Robert Raymond,Out of tfre Fjery Furnace (University Park, PA The Pennsylvania.
Such conditions include operating the electric furnace at metallic copper saturation, maintaining the %Fe in the electric furnace matte between 6 wt.% and 9 wt.%, not exceeding a slag temperature. The primary production of sulfide concentrates includes smelting to copper matte or blister copper, conversion of matte to blister copper, and refining to copper.
Smelting, converting, and fire-refining can use a limited amount of secondary materials. Molten copper can effectively dissolve many metals, from valuable noble metals to harmful impurities such as bismuth.
Blister copper is produced from copper oxides or dead-roasted copper sulfides in a cyclic smelting process using a carbon reductant.
In the first stage of the cycle, carbon reductant is added to the furnace charge in stoichiometric excess to form a copper-depleted slag and a molten black copper fraction.
The slag is tapped, leaving black copper in the furnace, and a second charge containing. Chapter 17 - Smelting of Nickel Sulfide Concentrates by Roasting and Electric Furnace Smelting, Pages Chapter 18 - Flash Smelting of Nickel Sulfide Concentrates, Pages Chapter 19 - Converting – Final Oxidation of Iron From Molten Matte, Pages The topics discussed include smelting laterite concentrates to sulfide matte, extracting nickel and cobalt from sulfide ores, the slow cooling and solidification of converter matte, extracting cobalt from nickel laterite and sulfide ores, and smelting and converting sulfide concentrates containing platinum-group metals."--Reference and Research.
Purchase Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals - 1st Edition. Print Book & E-Book. ISBNReverberatory Furnace Smelting The reverberatory furnace dominated copper matte smelting for much of the s, because it was an excellent process for smelting fine concentrate from flotation.
It is a fossil fuel fired hearth furnace for smelting concentrate and producing copper matte. The reverbs began to decline in the. A nickel flash smelting furnace is initially used to obtain the valuable metal but the loss of nickel in the slag amounts to about 4 % and thus an electric slag-cleaning furnace has to be.
This video was sponsored by LastPass I collect copper ore from an abandoned mine in California and extract the copper metal out of it t.
Smelting Furnace Details Electric Slag-Cleaning Furnace Details Converting Furnace Details Optimum Matte Grade Process Control in Mitsubishi Smelting/Converting The Mitsubishi Process in the s Summary References Suggested Reading Direct-To-Copper Flash.
Modern technology uses electric smelting or flash smelting. Flash smelting is the most common process but electric smelting is used for more complex raw materials when increased flexibility is needed.
Both processes use dried concentrates. Electric smelting requires a roasting step ahead of the smelter to reduce sulfur content and volatiles.
A method is provided for producing blister copper from calcined copper-iron concentrates wherein the calcine containing copper ferrite is mixed with particulate carbonaceous reducing agent and charged into a rotary furnace, slag-forming ingredients being also added to slag off iron oxide.
The charge is heated to a smelting temperature above the melting point of copper by directing a combusting. Smelting Electric furnace smelting is the route used to produce ferronickel and matte from nickel oxide ores.
Smelting ofthe nickel oxide ores poses significant challenges in the design and operation of furnaces. MgO-rich slags, ferronickel and low sulfur mattes require such high operating temperatures that refractory corrosion can be extremely.
This book describes and explains the methods by which three related ores and recyclablesare made into high purity metals and chemicals, for materials processing. It focuses on present day processes and future developments rather than historical processes.
Nickel, cobalt and platinum group metalsare key elements for materials processing. They occur together in one book because they(i) map. The topics discussed include smelting laterite concentrates to sulfide matte, extracting nickel and cobalt from sulfide ores, the slow cooling and solidification of converter matte, extracting cobalt from nickel laterite and sulfide ores, and smelting and converting sulfide concentrates containing platinum-group metals."—.
The primary technology for platinum group metals (PGMs) has become electric furnace matte smelting of flotation concentrates followed by matte leaching, chloride-based leaching of matte leach residue, and then separa- tion and purification of the PGMs by classical solvent extraction, precipita- tion, and/or ion exchange techniques.
The book emphasizes a sequential, building-block approach to the subject gained through the author’s previous writings and extensive experience. Due to the multiple metals involved and because each metal originates in several types of ore, e.g.
tropical ores and arctic ores, this necessitates a multi-contributor work drawing from multiple.It contains an even greater depth of industrial information, focussing on how copper metal is extracted from ore and scrap, and how this extraction could be made more efficient.
Modern high intensity smelting processes are presented in detail, specifically flash, Contop, Isasmelt, Noranda, Teniente and direct-to-blister smelting.Black copper consists of an impure form of copper produced by smelting oxidised copper ores or impure scrap, usually in a blast furnace.
The copper content varies widely, usually in the range of approximately 60 or 85 % by weight. Blister copper consists of an impure form of copper produced by blowing air through molten copper matte.