Copper Fire Refining Process
Modeling of Metallurgical Process of Copper Fire Refining
A mathematical description is given of different stages of the kinetics of deoxidation of copper by charcoal in application to the reducing stage of fire refining of blister copper.
The Hydrometallurgical Extraction and Recovery of High …
Today, fire refining has been improved greatly by innovative furnace design, new fluxing technologies, and the improved use of oxygen. ... demonstrate how typical chemical engineering unit process and unit operations have supplanted classic smelting and fire refining techniques. The Kennecott Copper Company, which has operated a ...
BACKGROUND REPORT SECONDARY COPPER …
Leaching is used to recover copper from slime, a byproduct of electrolytic refining. In this process, sulfuric acid is circulated through the slime in a pressure filter.
Refining | SpringerLink
There are two important methods of refining blister copper: fire refining and electrolytic refining. Fire refining does not remove/recover bismuth and precious metals. On the other hand, the electrolytic process not only produces high-purity copper but also improves economy of the process by successfully recovering silver and gold as …
Extractive Metallurgy of Copper
This chapter describes the process of fire refining for removing blisters. It is prevented by removing sulfur and oxygen from molten copper by air oxidation, then hydrocarbon …
THE ISA PROCESS AND ITS CONTRIBUTION TO …
The ISA PROCESS and its Contribution to Electrolytic Copper _____ _____ Fig 1: Events in the Evolution of Electrolytic Copper Production Fire refined Lake copper the standard for price quotation. 1865 First Patents granted to James Elkington for electrolytic copper refining 1883 First electrolytic copper refinery built at Newark, USA
Estimation of CO2-Equivalent Emission under the Copper Fire Refining
The emission of greenhouse gas -carbon dioxide in the process of fire refining of blister copper has been calculated. The anode melting process consists of several stages where the most important ones are …
Gold processing
Gold processing - Refining, Smelting, Purifying: Gold extracted by amalgamation or cyanidation contains a variety of impurities, including zinc, copper, silver, and iron. Two methods are commonly employed for purification: the Miller process and the Wohlwill process. The Miller process is based on the fact that virtually all the impurities present …
Simulation of the Electrolytic Copper Refining Process
The task of management of copper electrolytic refining process is to increase its efficiency by controlling and regulating the parameters. These parameters directly affect the quality of the cathode precipitate, namely: …
Review of copper pyrometallurgical practice: today and tomorrow
The overall energy consumption of primary production processes such as Outokumpu, Inco, and Mitsubishi ranges from 23 to 25 GJ/tonne of copper for the process consisting of concentrate drying, smelting and converting, fire refining, electrolytic refining and capture of SO 2 as sulphuric acid (Rentz et al., 1999).
Fundamentals of the refractory wear in an industrial …
This paper presents a combination of different useful techniques to identify the fundamentals of the infiltration and chemical degradation of the refractory used in the lining of an anode furnace for fire refining of blister copper.
Estimation of CO2-Equivalent Emission under the Copper …
The emission of greenhouse gas -carbon dioxide in the process of fire refining of blister copper has been calculated. The anode melting process consists of …
Extractive Metallurgy of Copper | ScienceDirect
These steps are smelting, converting, and refining. The overall copper making process can be explained by using the copper–oxygen–sulfur predominance diagrams. This tool is a navigation chart to understand the overall copper making process.
A New Copper Scrap Fire-Refining Concept for …
Arsenic control in the copper-making industry is an important topic, and it is essential to develop new fire-refining technologies for As removal from copper scrap or blister copper. An "As enrichment—targeting oxidation—slag modifying" fire-refining process has been proposed and …
Arch. Metall. Mater., Vol. 61 (2016), No 2, p. 521–528
Fire refining process is carried out in the anode rotary furnaces. The furnaces have a capacity of 250 - 270 Mg of liquid copper. The charge to the rotary kilns is in a form of …
Extractive Metallurgy of Copper | ScienceDirect
This requires that the copper be fire refined to remove most of its sulfur and oxygen that causes blisters and bubbles. This chapter describes the process of fire refining for removing blisters. It is prevented by removing sulfur and oxygen from molten copper by air oxidation, then hydrocarbon reduction. ...
Copper Smelting and Refining Process | Pan Pacific Copper
The refined blister copper is poured into casting molds lined up side by side on the revolving circular table of a casting wheel and cast into anode plates for electrolytic refining.
Reducing agents in fire refining of copper
Briefly, fire refining consist of the stage of oxidation of impurities and their removal to the slag phase, followed by the reduction of copper oxide in order to obtain the copper …
Numerical Modeling of Copper Reduction in Fire Refining Process
Fire refining of blister copper is a singular process at very high temperatures (~1400 K), which means the furnace is exposed to heavy thermal loads.
Gold Smelting & Refining Process
Gold can be concentrated and recovered by applying different gold refining process methods and the final product has variable quality. In this way, it is necessary to have a better marketable product so that the incomes can be improved.
Copper Electrolytic Refining Process Explained
The ideal of the copper hydrometallurgist is to secure, in the hydro-electrolytic extraction of copper from its ores with insoluble anodes, conditions comparable with those which obtain in the electrolytic refining of copper with soluble anode. By means of the step system it is believed that these conditions are more nearly …
Process | SDI La Farga Copperworks
Our Fire-Refined High Conductivity Copper production process has a significantly lower impact on the environment, diminishing our carbon footprint. Our process isn't just environmentally friendly—it's environmentally responsible. ... Our unique proprietary copper-refining process is a direct result of our company's culture of innovation ...
Reducing agents in fire refining of copper
Reduction as a stage of the process of fire refining of copper The operations immediately preceding the reduction are oxidation and slag removal.
Modeling of Metallurgical Process of Copper Fire Refining
The Simplex Method in Matrix Notation and Duality Theory, and Applications: Foundations of Convex Programming. Expand
Review of copper pyrometallurgical practice: today and …
Fire refining consists of a two stage process to purify the molten metal prior to casting into anode shapes. Selective oxidation by means of injecting air through the …
CONTINUOUS FIRE REFINING OF BLISTER COPPER
Development of continuous copper matte converting processes creates a strong demand for continuous copper fire refining. Copper refining requires two stages: oxidation with …
New developments in fire refining
Challenges in fire refining. The conventional fire refining process consists of an anode furnace capable of treating blister to anode copper through oxidation by air and reduction by reductant e.g. natural gas, …
Copper Refining: From Ore to Market
The blister copper is recovered and is then subjected to a process called fire refining. In fire refining, air is blown through the copper to oxidize impurities into slag; then wood is added to ...
Method of continuous fire refining of copper
A method of intensive, continuous copper fire refining, said method comprising the stages of: continuous tapping in a liquid copper (4) into a first oxidation reactor; liquid copper oxidation with combustion gases containing oxygen or with air; simultaneous formation of slag collecting impurities; continuous tapping out of oxidized copper and refining slag …
Development Journey of Fire Refining for Producing Bright Copper …
The FRHC impure copper refining process, known as the "fire refining high conductivity copper" production process, is a patented technology developed in the mid-1980s by experts and scholars from ...
Comparison of environmental performance of modern …
The typical process steps in the pyrometallurgical processing are smelting, converting, fire-refining and anode casting followed by tankhouse electrorefining to …
Copper Anode Furnace: Chemical, Mineralogical and Thermo …
The pyrometallurgical copper production route typically involves a three-step process from feed to anode: (s)melting, converting and fire refining.1 Two types of furnace are in use in the refining section: the rotary furnace type dominates in primary copper production, while secondary smelters tend to use hearth refining furnaces …
Comparison of environmental performance of modern copper …
The typical process steps in the pyrometallurgical processing are smelting, converting, fire-refining and anode casting followed by tankhouse electrorefining to copper cathode. Slag is further cleaned in a slag cleaning furnace or directed to slag flotation.