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.
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 ...
Refining
— In order to get a high-quality product, a major proportion of blister copper is first fire refined customarily prior to electrolytic refining with the prime objective of reducing the refining cost. Fire refining of blister copper is carried out at 1150–1200 °C either in a rotary furnace (3–5 m diameter and 9–14 m long) or in a ...
Modeling of Metallurgical Process of Copper Fire Refining
The refining of blister copper is based on the partial removal of impurities that have an increased affinity for oxygen. The most interesting is the process of centralized copper refining at one plant. This is because blister copper from the producer plants has a different chemical composition.
The Utilization of Copper Continuous Smelting, Converting and Fire
— Therefore, the continuously converting processes for treating molten matte have been studied and developed. In July 2017 the "oxygen-rich side blowing smelting + multi-lances top converting & fire refining" continuous copper treating process was commissioned. This process was designed by ENFI and YanTai GuoRun Copper Smelter.
Modeling of Metallurgical Process of Copper Fire Refining
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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 melting of charge, oxidation, and copper melt reduction. Calculations are based on taking into account the mass of burnt carbon of natural ...
Bismuth Metallurgy
— Fire-refining process is the main method for bismuth refining. Electrochemical refining process is used only for crude bismuth, which is difficult to be refined directly by fire-refining process. Fire Refining. The crude bismuth obtained by fire smelting often contains impurities such as copper, arsenic, silver, tellurium, and lead, …
New developments 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, LPG or diesel. However, in most cases controlling of the refining cycle is not optimized and Outotec has identified several areas for improvement such as:
Oxidation of Cu-Pb-As Ternary Alloys at …
— The Cu-Pb-As ternary system is a fundamental subsystem in metallurgy, and the oxidation behavior of its components elements is an important issue in alloy preparation, particularly with copper/lead …
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 melting of charge, oxidation, and copper melt reduction. Calculations are based on taking into account the mass of burnt carbon …
Estimation of CO2-Equivalent Emission under the Copper Fire Refining
— The process of the copper fire refining in terms of greenhouse gas e missions was considered in [8, 9]. The refining process is based on the follow ing regularities:
NUMERICAL MODELING OF COPPER REDUCTION IN …
Copper reduction represents one of the steps in the process of fire refining of blister copper. Process of copper reduction with natural gas as performed in the anode furnace was modeled.
12.3 Primary Copper Smelting
Estimation of CO2-Equivalent Emission under the …
The process of the copper fire refining in terms of greenhouse gas emissions was considered in [8, 9]. The refining process is based on the following regularities: ...
BACKGROUND REPORT SECONDARY COPPER …
2.2 Process Description Secondary copper recovery is divided into four separate operations: scrap pretreatment, smelting, alloying, and casting. ... Sauget, Illinois 125,000 fire-refining, electrolytic refining Chemetco Alton, Illinois 135,000 one-stage (top-blown rotary converter) smelting/refining Gaston Recycling
Modeling of Metallurgical Process of Copper Fire Refining
— The refining of blister copper is based on the partial removal of impurities that have an increased affinity for oxygen. The most interesting is the process of centralized copper refining at one plant. This is because blister copper from the producer plants has a different chemical composition. Obviously, the batch of each loading also has a variable …
THE ISA PROCESS AND ITS CONTRIBUTION TO …
pyrometallurgical processes. Fire refined, Lake copper set the standard for purity and conductivity up until this century. The first patents for metal electrorefining, were for copper and were granted to James Elkington in England in 1865. The first copper refinery was built in Newark by Balbach Smelting and Refining Company in 1883.
Process of Refining Gold by Fire
— Refining gold by fire removes impurities, such as copper and silver, and leaves behind a purer form of metal. This increases the value of the gold and makes it more suitable for use in jewelry, coins, and other …
Modeling of Metallurgical Process of Copper Fire Refining
Request PDF | On Jul 17, 2018, V G Lisienko and others published Modeling of Metallurgical Process of Copper Fire Refining | Find, read and cite all the research you need on ResearchGate
Fundamentals of the refractory wear in an industrial …
— The latter is generated during the oxidation sub-process of the fire refining, and contains impurities from the blister copper and copper oxide that have inevitably formed due to over-oxidation. Part of this slag is separated from the copper because of differences in density, and another part is reduced by the reducing sub-process in the fire ...
Extractive Metallurgy of Copper
Several Cu-bearing materials are recycled to the converter, such as solidified Cu-bearing reverts and copper scrap. The products of the process are: Molten blister copper (99% Cu, 0.02% S and 0.6% O), which is sent forward to fire refining for final S and O removal, then anode casting: molten Fe-silicate slag (4–8% Cu), which is sent to Cu ...
Copper Refining
Fire refining removes dissolved gases and some impurities to produce anode copper. Finally, electrorefining dissolves anodes into a copper sulfate-sulfuric acid electrolyte …
Extraction of Copper: Detailed Process
— 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. ... The final process, refining, eliminates all traces of impurities and yields a copper product with a purity of 99.99 percent.
New developments in fire refining
— Figure 1: Outotec Anode Furnace. 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 …
BACKGROUND REPORT SECONDARY COPPER …
Secondary copper recovery is divided into smelting, alloying, and casting. Pretreatment preparation for smelting. Smelting consists of purification of specific metals. Alloying …
A New Copper Scrap Fire-Refining Concept for Strengthening Arsenic
— Arsenic monitoring is a critical issue in the copper-making industry, and its removal at the fire-refining stage is important. However, arsenic is poorly removed in the traditional fire-refining practices. A new "As enrichment—targeted oxidation—slag modifying" process is proposed and experimentally studied in this work. The results …
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 …
Simulation of the Electrolytic Copper Refining Process
— Electrochemical refining of copper is based on the difference in electrochemical potential of copper and its impurities. This process is the final stage producing pure metal from ore with a copper content of at least 99.999%, i.e. the total content of impurities with the regulated concentration limits does not exceed 0.01% [7, 8].
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. The anode plates are approximately 1m x 1m x 0.05m in size, and weigh 380 kg per plate.
(PDF) Reducing agents in fire refining of copper
WEB — 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 anodes with...