fire refining of copper
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fire refining of copper

CONTINUOUS FIRE REFINING OF BLISTER COPPER

2015-9-7 · The continuous fire refining of copper in a packed bed is a feasible process ensuring the proper copper oxidation, sulphur removal and copper reduction before anode casting.The dispersion and motion of a liquid copper in a ceramic packed bed increase the gas/liquid reaction surface area resulting in a very high rate of oxidation and copper desul-phurization.

Regency, Indonesia Copper Fire Refining Process

matte copper converting, fire and electrolytic copper refining. Refined copper is the main raw material for production of semi-finished copper goods. Nowadays 91 % of the UMMC production consists of copper rod, of non-ferrous rolled products 8 %, of copper powder 1 %.

FIRE REFINING OF BLISTER COPPER - OUTOTEC (FINLAND)

Typically fire refining of blister copper is performed in two phases, oxidation phase and reduction phase. In oxidation phase air is blown to the blister copper and oxygen comprised in the air oxidizes sulfur to gaseous sulfur dioxide. Some of the oxygen also dissolves in the molten blister copper

FIRE REFINING OF COPPER - INTERNATIONAL NICKEL CO.

A process is disclosed for fire-refining copper sulfide having a copper to nickel ratio of more than about 7:3, which process comprises maintaining a molten bath of copper sulfide in a turbulent state to volatilize at least about 50 percent of at least one impurity from the group consisting of bismuth, lead, tin and zinc, then surface blowing the turbulent bath of copper sulfide with a free ...

(PDF) 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 anodes with an...

EP2111472A1 - Method of continuous fire refining of

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 from the first reactor (8 ...

Refining of blister copper - [email protected]

2011-8-19 · The copper anodes from fire refining are placed in atank filled with solution of copper sulphate to whichis added some sulphuric acid as electrolyte. The cathodesare pure copper starting sheets suspended between theanodes. Anodes are connected to the positive and catho-des to negative terminals of the source of current. Onpassing of the current through the electrolyte, the anodeis dissolved, anode copper

Copper Refining: Explained Step-by-Step

2017-2-10 · In refining copper, the metal is melted down in a reverberatory furnace in a more or less oxidizing atmosphere and then further subjected to an oxidizing smelting in order to eliminate the common impurities, most of which have a stronger affinity for oxygen than has copper.In these operations some of the copper is oxidized to cuprous oxide and dissolved by the metal bath.

Estimation of CO2-Equivalent Emission under the Copper ...

2017-6-1 · 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 ...

PRECIOUS METALS REFINING PRACTICE H. ABSTRACT

2016-3-4 · Anode mud, the residual material collected from the bottom of the electro- lytic cells during the refining of copper, is pumped to the Silver Refinery plant to process for precious metals and selenium. Anode mud contains up to twelve percent selenium combined as copper and silver selenides. Gold exists in the uncombined state and in combination with tellurium. The color of anode mud is predominantly

Regency, Indonesia Copper Fire Refining Process

matte copper converting, fire and electrolytic copper refining. Refined copper is the main raw material for production of semi-finished copper goods. Nowadays 91 % of the UMMC production consists of copper rod, of non-ferrous rolled products 8 %, of copper powder 1 %.

Copper Fire - Refining - Hormesa Group

Copper Fire – Refining HORMESA train the customer in fire-refining process starting from 2nd quality scrap and guarantees 99.9% Cu with 100 IACS min of conductivity as final product of the process. Resolution Process Chart

Oxide inclusions in copper during its fire refining

2016-1-10 · copper (М00к), noble metals concentrating slime and elec-trolyte-refining cake are obtained on electrolysis stage. Removal of such impurities as lead, antimony, arsenic and nickel [2–6] into slag on the fire refining stage is very difficult. The basic idea of copper refining supposes the oxi-dation of impurities and slagging of formed oxides.

Modeling of Metallurgical Process of Copper Fire Refining ...

Abstract 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 chemical composition.

US10648060B2 - Fire refining of blister copper - Google ...

Provided herein is a process of fire refining blister copper, comprising the steps of (a) providing molten blister copper into an anode furnace; (b) when sulfur concentration of the molten blister copper provided in step (a) is above a first prescribed target value, oxidizing sulfur in the molten blister copper by blowing oxygen containing gas into the molten blister copper until the first ...

Numerical Modeling of Copper Reduction in Fire Refining ...

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

2015-9-10 · The fire-refined copper is then cast into anodes for even further purification by electrolytic refining. Electrolytic refining separates copper from impurities by electrolysis in a solution containing copper sulfate (Cu2SO4) and sulfuric acid (H2SO4). The copper anode is dissolved and deposited at the cathode. As the copper anode dissolves ...

Estimation of CO2-Equivalent Emission under the Copper ...

2017-6-1 · 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 ...

Melting and Refining Technology for Copper Produced

Melting and Refining Technology for Copper Produced from Scrap Charge Subject: Air Products copper refining technology can refine copper scrap more economically than traditional methods. This technology replaces and surpasses conventional "fire-refining" of scrap-derived copper melts in large reverberatory furnaces. (Air Products T echnical Paper)

PRECIOUS METALS REFINING PRACTICE H. ABSTRACT

2016-3-4 · Kennecott Copper Corporation, Utah Refinery Salt Lake City, Utah 841 11 ABSTRACT Anode mud, the residual material collected from the bottom of the electroly- tic cel Is during the refining of copper is leached, roasted, fire-refined and cast into Dore1 mefal anodes. Dore1 metal is a gold-silver-copper al loy containing 80 percent silver. The ...

Copper Fire - Refining - Hormesa Group

Copper Fire – Refining HORMESA train the customer in fire-refining process starting from 2nd quality scrap and guarantees 99.9% Cu with 100 IACS min of conductivity as final product of the process. Resolution Process Chart

Oxide inclusions in copper during its fire refining

2016-1-10 · copper (М00к), noble metals concentrating slime and elec-trolyte-refining cake are obtained on electrolysis stage. Removal of such impurities as lead, antimony, arsenic and nickel [2–6] into slag on the fire refining stage is very difficult. The basic idea of copper refining supposes the oxi-dation of impurities and slagging of formed oxides.

fire refining of copper ppt - cooperindustries.pl

Copper Smelting - IFC. refining In fire refining, molten blister copper is placed in a fire-refining furnace, a flux may be added, and air is blown through the molten mix-ture to remove residual sulfur Air blowing re-sults in residual oxygen, which is removed by the addition of natural gas, propane, ammonia, or wood The fire-refined copper is cast into an-

Modeling of Metallurgical Process of Copper Fire Refining ...

Abstract 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 chemical composition.

12.3 Primary Copper Smelting

2015-9-10 · The fire-refined copper is then cast into anodes for even further purification by electrolytic refining. Electrolytic refining separates copper from impurities by electrolysis in a solution containing copper sulfate (Cu2SO4) and sulfuric acid (H2SO4). The copper anode is dissolved and deposited at the cathode. As the copper anode dissolves ...

New developments in fire refining - Outotec

2017-7-3 · 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, LPG or diesel. However, in most cases controlling of the refining

Melting and Refining Technology for Copper Produced

Melting and Refining Technology for Copper Produced from Scrap Charge Subject: Air Products copper refining technology can refine copper scrap more economically than traditional methods. This technology replaces and surpasses conventional "fire-refining" of scrap-derived copper melts in large reverberatory furnaces. (Air Products T echnical Paper)

BACKGROUND REPORT SECONDARY COPPER

2021-6-25 · Cerro Copper Products Sauget, Illinois 125,000 fire-refining, electrolytic refining Chemetco Alton, Illinois 135,000 one-stage (top-blown rotary converter) smelting/refining Gaston Recycling Industries Gaston, South Carolina 110,000 smelting, fire-refining, electrolytic refining Franklin Smelting and Refining Philadelphia, Pennsylvania 16,000 ...

Pre-Feasibility study of Copper Smelter Plant –II

2018-2-14 · The blister copper is further treated in anode furnaces by fire refining and cast into anodes for electro-refining in an ISA REFINERY to a saleable copper cathode of 99.99% Cu purity. 1.2.1 Operational Theory of Smelter The copper concentrate is selectively oxidized in

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.

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