Matte, crude mixture of molten sulfides formed as an intermediate product of the smelting of sulfide ores of metals, especially copper, nickel, and lead. Instead of being smelted directly to metal, copper ores are usually smelted to matte, preferably containing 40–45 percent copper along with iron
Understanding the main parameters influencing the result of the copper smelting process is important to reproduce an existing copper smelting process within a thermodynamic model. The following parameters could be identified from literature: Matte grade: This parameter is defined as the Cu content in the matte in wt%. In practice …
The results of studies on the distribution of rare elements among the products of distillation processing of polymetallic mattes are present in this article. Schemes of the developed technological equipment for the implementation of the extraction processes of rare elements via the vacuum distillation of mattes are presented. …
Metallurgy - Matte Smelting, Refining, Alloying: The primary purpose of matte smelting is to melt and recombine the charge into a homogeneous matte of metallic copper, nickel, cobalt, and iron sulfides and to give an iron and silicon oxide slag. It is done in many types of furnace on both roasted or unroasted sulfide feed material. The reverberatory furnace …
Copper processing, the extraction of copper from its ores and the preparation of copper metal or chemical compounds for use in various products.
Copper Matte Converting. This is the metallurgy process in which air or oxygen-rich air is used as an oxidant to completely oxidize the iron and sulfur in copper matte in order to make blister copper. At present, the traditional Pierce-Smith (P-S) converting process is still the main process for copper matte converting.
The Process. The concentrated ore is heated strongly with silicon dioxide (silica) and air or oxygen in a furnace or series of furnaces. The copper(II) ions in the chalcopyrite are reduced to copper(I) sulfide (which is reduced further to copper metal in the final stage).
A common method for nickel leaching from the matte is by using ammonia under high pressure, producing a nickel-bearing solution. ... an example of this is the carbonyl (or Mond) process: the copper and precious metals remain as a pyrophoric residue, which requires separate treatment. Whether high-grade or low-grade, nickel …
How is copper produced? Here's information about the modern manufacturing process of copper and how much is generally produced.
The process of extraction of copper from its ores and preparing copper metal or chemical compounds for use in various goods is known as copper processing.
U.S. Geological Survey Open-File Report 2004-1395 Flows of Selected Materials Associated with World Copper Smelting By Thomas G. Goonan Any use of trade, firm, or product names is for descriptive purposes only and does not Imply
Matte converting by P-S Converter is the metallurgical process in which copper matte or low-grade nickel matte is generated through matte smelting in pyrometallurgical smelting of sulfide concentrate of copper and nickel, and then the product reacts with air or oxygen-rich air in a horizontal converter to remove all or most of the …
A typical pyrometallurgical copper smelting process, as illustrated in Figure 12.3-1, includes 4 steps: roasting, smelting, concentrating, and fire refining. Ore concentration is …
The waste heat recovery is not included in Fig. 1 Schematic process flow diagram of the synergistic copper process [4] the calculations. The cold matte 70% Cu is converted to blister copper ...
Copper matte converting is the key step to ensure high primary copper recovery in the smelting chain. Its development and the fundamental research carried …
The Bayesian optimization support vector regression (BO-SVR) model was used to predict the copper content in the slag and matte grade by combining plant production data with …
Nickel processing - Extraction, Refining, Alloying: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating …
Copper matte converting is the key step to ensure high primary copper recovery in the smelting chain. Its development and the fundamental research carried out over the past decades will be...
Copper concentrate (CuFeS 2) is fed into the furnace along with a flux of silica sand, SiO 2, and oxygen, O 2. The flux is used to control the chemistry of the slag. In particular, it causes the iron (Fe) in the copper concentrate to accumulate in the slag phase, while the copper (Cu), accumulates in the matte phase. Copper Concentrate
The effects of the amphoteric and basic oxides alumina and lime on the phase equilibria of copper matte and silica-saturated slags were investigated at 130 ... A schematic diagram of the experimental ... and copper in slags. Hence, further effort is needed to investigate the copper dissolution mechanism in slags in the copper smelting …
ISASMELT plants produce either copper matte, lead metal or cop-per metal in Australia, England, USA, Belgium, India, Germany, Malaysia and China. ... effective copper and lead smelting process available in the world today. The history of the process ... A schematic diagram of the Mount Isa Copper ISASMELT flowsheet appears in Figure 2.
The converting of copper matte after the smelting process is one of the main steps in the copper-making industry. This work used microstructural analyses of samples collected at different stages of converting and thermochemical calculations to study a real converting batch in a Peirce-Smith converter at Atlantic Copper. The transformation of matte and …
Most of the world's copper and nickel are currently produced by smelting sulphide concentrates. Resulting matte is then converted into metal. Peirce–Smith converting is currently used in the copper, nickel and platinum industries to remove iron and sulphur from a molten matte phase.
Waste electrical and electronic equipment (WEEE) contains various valuable metals, making it a potential secondary resource for sustainable metal usage. Pyrometallurgical smelting is an efficient technique to recycle WEEE by extracting precious metals into copper matte and removing impurities into slags. The impact of WEEE …
The effectivity of present copper smelting technologies have their roots in industrial and laboratory-scale experience accumulated over the past decades. Since ...
In this opinion piece, the electrolytic processing of the other major rock-forming compound: sulfide, is explored. The focus is on the production of copper, a bulk commodity with superior electrical properties, key to the proliferation of electric vehicles and smart electricity grids.
The copper production process. Although metallic copper occurs naturally, it is mainly extracted from sulfide ores in a metallurgical smelting process. There are four main steps. 1. An initial smelting process extracts copper concentrates, resulting in …
Copper Matte – Slag reaCtIon SequenCeS and SeparatIon proCeSSeS ... Thermodynamically, the matte-slag reactions in the smelting process are best described through the phase diagram by Yazawa and ...
The reverberatory furnace dominated copper matte smelting for much of the 1900s, because it was an excellent process for smelting fine concentrate from flotation. It is a fossil fuel fired hearth
Provis et al. presented a semi-empirical mathematical model for the acid-oxygen pressure leaching of nickel–copper matte; the ... components through the reaction of biological metabolites and minerals is the indirect effect of the bioleaching process. The schematic diagram of biological leaching of sulfide ores is shown in Fig. ...