Call : 0086-21-58386256

outokumpu copper process chemical reactions

HYDROCOPPER – A NEW METHOD FOR TREATING COPPER …

Outokumpu has developed a new chloride leach process, called HydroCopper®, to treat copper concentrates. Chalcopyrite is quite refractory in leaching and in sulfate milieu an autoclave of high temperature and pressure is required. However, in the HydroCopper®-process copper sulfides can effectively be leached in atmospheric pressure using strong,

Chemical Reactions | Chemistry | Visionlearning

Types of chemical reactions. There is a staggering array of chemical reactions.Chemical reactions occur constantly within our bodies, within plants and animals, in the air that circulates around us, in the lakes and oceans that we swim in, and even in the soil where we grow crops and build our homes. In fact, there are so many chemical reactions that occur that it would be difficult, if not ...

Chemical Reactions of Copper and Percent Yield

with two fundamental types of chemical reactions - redox reactions and metathesis (double-displacement) reactions. By means of these reactions, you will finally recover the copper sample with maximum efficiency. The chemical reactions involved are the following. Cu(s) + 4 HNO 3 (aq) Cu(NO 3) 2 (aq) + 2 NO 2 (g) + 2 H 2

US4194672A - Process for the diffusion welding of copper ...

A process for the diffusion welding of copper and stainless steel, which comprises sandwiching a thin layer of at least one metal selected from the group consisting of Ni, Ni-base alloys, Cr, Ni-Cr, and Cr-Ni with little gas contents, as an insert metal, between the surfaces of copper and stainless steel to be bonded, and then diffusion welding the sandwich.

The Copper Flash CC Smelting Process :: Total Materia Article

The process takes place in a flash smelting furnace, which schematically is presented in Figure 1. Main feedstock of the process is a dry Cu-Fe-S concentrate. Very roughly speaking, dry concentrate is blasted with O 2 in the reaction shaft. The furnace is equipped with hydrocarbon fuel burners located concentrically in a reaction shaft.

OUTOTEC FLASH SMELTING TECHNOLOGY

proprietary process. The process is highly energy efficient because it makes full use of the reaction heat of the concentrate, meaning that no external fuel is required for smelting. The high sulfur capture rate of more than 99.9 percent is achieved by using low-volume process gas, a …

Outokumpu hydrocopper™ process: A novel concept in copper ...

The chemical environment studied was similar to that of the Outokumpu HydroCopperTM process, which uses a cupric chloride solution to leach copper from the mineral chalcopyrite.The results suggest ...

Case Study Flowsheets: Copper–Gold Concentrate Treatment ...

Jan 01, 2016· The Outokumpu Hydrocopper Process (Hämäläinen et al., 2003) was developed more recently and will be reviewed here, along with the Kell process, comprising a sequential sulfate and chloride leaching system (Liddell and Adams, 2012a, Liddell and Adams, 2012b), recently extended to copper–gold and refractory gold (Adams et al., 2015).

Types of Chemical Reactions (With Examples)

Jan 25, 2020· A chemical reaction is a process generally characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds.There are several different types of chemical reactions and more than one way of classifying them.

Using computational fluid dynamics to modify a waste-heat ...

Y. Yang, "Computer Simulation of Gas Flow and Heat Transfer in Waste-Heat Boilers of the Outokumpu Copper Flash Smelting Process," Acta Polytechnica Scandinavica, Chemical Technology Series No. 242 (Helsinki, Finland: Finnish Academy of Technology, 1996). Google Scholar

Copper - Wikipedia

Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.A freshly exposed surface of pure copper has a pinkish-orange color.Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling ...

Method for producing copper in hydrometallurgical process ...

Dec 28, 1999· In the method according to the present invention, in the copper manufacturing process, the copper (I) chloride electrolysis leading to complicated cell constructions has been replaced by Cu 2 O precipitation carried out in ordinary reactors and by chlorine-alkali electrolysis used in the basic chemical industry. This makes the whole process ...

Experiment 11 – A Cycle of Copper Reactions

Aug 11, 2011· Experiment 11 – A Cycle of Copper Reactions In this experiment, you will perform and observe several reactions of copper. This is a cycle of reactions, because you start and end with the same substance, copper metal. In the first reaction, copper metal is oxidized by nitric acid to form copper (II) nitrate, Cu(NO 3) 2

Influence of the Impact of Slurry Slag from a Single-Stage ...

of the process based on the "Outokumpu" technology it was noted that "Polish copper concentrates" have in their chemical composition low iron and sulphur contents, i.e. Fe contents up to 4% and S contents up to 13%, which allowed for the introduction of a single-stage copper smelting process, that is

Chapter 6 Copper Production Technology

hydrometallurgical 2 copper production. Tables 6-1 and 6-2 provide capsule summaries of these processes. 1 PyrometaIIurgy IS the extractIon of metaI from ores anD concen-trates using chemical reactions at high temperatures. 2 Hydrometallurgy is the recovery of metaIs from ores using water-based solutions. As early as 6000 B. C., native copper ...

Copper Patina Guide | CopperSmith

Sep 19, 2016· Copper reacts with oxygen that is in the air, resulting in copper dioxide (Equation 1). The copper dioxide then reacts with more oxygen to form copper oxide (Equation 2). This copper oxide from reaction 2 is the main culprit that will later form the colors of the patina.

ISASMELT - Wikipedia

The ISASMELT process is an energy-efficient smelting process that was jointly developed from the 1970s to the 1990s by Mount Isa Mines Limited (a subsidiary of MIM Holdings Limited and now part of Glencore plc) and the Australian government's Commonwealth Scientific and Industrial Research Organisation ("CSIRO"). It has relatively low capital and operating costs for a smelting process.

Sigmund Fugleberg Improving the competitiveness of the ...

Doctoral thesis, Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Department of Chemical Engineering, Åbo Akademi University, 2013 Keywords: Electrolytic zinc process, process development, leaching, solution purification, jarosite precipitation, copper removal, cobalt removal, cadmium

SAFETY DATA SHEET

Recommended use of the chemical and restrictions on use Recommended Use Solid stainless steel products, various forms, and uses Uses advised against No information available Supplier's details Supplier Address Outokumpu Stainless Bar, LLC 3043 Crenshaw Parkway Richburg, SC 29729 TEL: 1-888-458-4600; 1-803-789-5383

Copper mining. Chemical reactions.

At this stage of the process, the chemical reactions begin. They convert the copper minerals into copper metal. We can illustrate the types of process using the example of chalcopyrite - CuFeS 2.From the formula, it is clear that iron and sulphur have to be removed in order to produce copper.

US6007600A - Method for producing copper in ...

The invention relates to a method for producing copper in a hydrometallurgical process from copper-bearing raw materials, such as sulfidic concentrates. The concentrate is leached in a leaching stage of several steps into a chloride-based solution. The copper-bearing solution obtained from this leaching is subjected to reduction and solution purification, whereafter the copper contained in the ...

Numerical simulation of the outokumpu flash smelting ...

Jun 01, 1998· 1. Introduction. The flash smelting process, developed by the Outokumpu company in Finland, is widely used throughout the world for copper production, accounting for more than 40% of global capacity for primary copper production.It is based on the utilisation of the heat of oxidation reactions of sulfidic concentrates. These reactions take place in a downwards flowing turbulent …

chemical reaction | Definition, Equations, Examples ...

Chemical reactions are an integral part of technology, of culture, and indeed of life itself.Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans ...

Copper - Sulphuric Acid

Outokumpu flash smelting is a closed process which can achieve up to 99% capture of the sulphur-rich gases from the smelting furnace for the production of sulphuric acid. The technology was first introduced at Outokumpu's Harjavalta smelter in Finland in the late 1940's.

The Effects of Oxidation on Copper | Sciencing

Copper is a versatile metal used in thousands of everyday products. It oxidizes readily to form a distinctive coating known as patina. The patina gives the Statue of Liberty its characteristic appearance, but the oxidation of copper can also cause undesirable effects under some circumstances.

Extractive Metallurgy of Copper - 1st Edition

Purchase Extractive Metallurgy of Copper - 1st Edition. Print Book & E-Book. ISBN 9780080440293, 9780080531526

(PDF) COPPER PRODUCTION WITH OUTOKUMPU FLASH …

Jan 01, 2006· There are two stages in the Outokumpu flash smelting process: the oxidation reaction of copper concentrate with SiO 2 and oxidizing gas (e.g., oxygen-enriched air) in the reaction …

History of Outokumpu | Outokumpu

The first copper smelter was closed in 1929 as Outokumpu was drafting plans for an integrated copper chain. First modern mass production facility was built on the Outokumpu hill 1928. 1930s–1940s: Major copper producer. By the 1930's, Outokumpu had become a major producer of copper and an exporter of copper …

The Extraction of Copper - Chemistry LibreTexts

Copper can be extracted from non-sulfide 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 sulfuric acid to produce a very dilute copper(II) sulfate solution. Concentration of the copper(II) sulfate solution by solvent extraction.

Stainless Steel for Diesel Exhaust Fluid Tanks

Jan 26, 2010· • Outokumpu is a global leader in stainless steel • Our vision is to be the undisputed number one in stainless, with success based on operational excellence • The Group's sales over EUR 5.5 billion in 2008 • Outokumpu's melting capacity totals 2.55 million tons and the finished product's capacity 1.9 million tons • Outokumpu has ...

Copper Mining and Extraction Sulfide Ores

Stage 3: Roasting At this stage of the process, the chemical reactions begin. They convert the copper minerals into copper metal. We can illustrate the types of process using the example of chalcopyrite – CuFeS 2.From the formula, it is clear that iron and sulfur have to be removed in order to produce copper.

Boosted molecular mobility during common chemical reactions

Jul 31, 2020· During a chemical reaction, the reorganization of solvent molecules not directly in contact with reactants and products is normally viewed as a simple diffusion response. Wang et al. studied molecular diffusion in six common reactions—including the copper-catalyzed click reaction and the Diels-Alder reaction—with pulsed-field gradient nuclear magnetic resonance.