CONTINUOUS FIRE REFINING OF BLISTER COPPER

2015-9-7  copper through industrial scale reactor 600 mm in diameter and charcoal grains 30 mm in diameter CONCLUSIONS 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.

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

FIRE REFINING OF CRUDE COPPER BY FLUXES (2ND

FIRE REFINING OF CRUDE COPPER BY FLUXES (2ND REPORT): REFINING OF CRUDE COPPER BY Na 2 SO 4 AND CaO-Na 2 SO 4 FLUXES. Tetsuro Sakai, Takashi Nakamura, Fumio Noguchi, Yasuaki Ueda. Institute of Multidisciplinary Research for Advanced Materials (IMRAM) Research output: Contribution to journal ›

FIRE REFINING OF BLISTER COPPER OUTOTEC (FINLAND)

FIRE REFINING OF BLISTER COPPER. United States Patent Application 20180142323. Kind Code: A1. Abstract: 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

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 %.

(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

Refining of blister copper [email protected]

2011-8-19  The slag from fire refining in basic furnace contains 50-75% copper, and usually not over 5-100 0 SO.-, The slag is treated again in small blast furnace for secondary production of matte and waste slag. It is also used in converters with the matte. Elc'ctrolt'tic refining The copper anodes from fire refining are placed in a

Fire refining Big Chemical Encyclopedia

Fire refining Impurities can be removed by formation of a gaseous compound, as in the fire-refining of copper (qv).Sulfur is removed from the molten metal by oxidation with air and evolution of sulfur dioxide.Oxygen is then removed by reduction with C, CO, in the form of natural gas, reformed Other Meta.Is, Although most cobalt is refined by chemical methods, some is electrorefined.

COPPER Copper production TU Delft

2008-12-16  Refining the crude copper, usually in two steps 1. pyrometallurgically to fire-refined copper 2. electrolytically to high-purity electrolytic copper-1 of 11-Figure 1: Overview of copper production Benefication process Figure 2: Overview of a typical beneficiation process at a concentrator

(PDF) Pyrometallurgical Refining of Copper in an Anode

In the copper industry the anode furnace is an important process step in the refining procedure to reach an improvement of the copper quality by a selective oxidation and reduction.

FIRE REFINING OF HYDROMETALLURGICALLY

2020-4-2  FIRE REFINING OF HYDROMETALLURGICALLY PRODUCED COPPER THE UNIVERSITY OF ARIZONA M.S. University Microfilms International 300 N. Zeeb Road, Ann Arbor, MI 48106 . PLEASE NOTE: In all cases this material has been filmed in the best possible way from the available copy.

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

(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

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.

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.

Refining of blister copper [email protected]

2011-8-19  The slag from fire refining in basic furnace contains 50-75% copper, and usually not over 5-100 0 SO.-, The slag is treated again in small blast furnace for secondary production of matte and waste slag. It is also used in converters with the matte. Elc'ctrolt'tic refining The copper anodes from fire refining are placed in a

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

COPPER Copper production TU Delft

2008-12-16  Refining the crude copper, usually in two steps 1. pyrometallurgically to fire-refined copper 2. electrolytically to high-purity electrolytic copper-1 of 11-Figure 1: Overview of copper production Benefication process Figure 2: Overview of a typical beneficiation process at a concentrator

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

Electrolytic Refining Meaning, Electrorefining of Copper

Electrolytic refining is a process of refining a metal (mainly copper) by the process of electrolysis. As far as the mechanism of the process is concerned, during electrolysis, a large chunk or slab of impure metal is used as the anode with a thin strip of pure metal at the

FIRE REFINING OF HYDROMETALLURGICALLY

2020-4-2  FIRE REFINING OF HYDROMETALLURGICALLY PRODUCED COPPER THE UNIVERSITY OF ARIZONA M.S. University Microfilms International 300 N. Zeeb Road, Ann Arbor, MI 48106 . PLEASE NOTE: In all cases this material has been filmed in the best possible way from the available copy.

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

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.

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.

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

Blister Copper an overview ScienceDirect Topics

Fire refining is usually carried out prior to the electrolysis of copper. The fire refining is operated in either reverberatory or rotary furnaces known as anode furnaces. Through this step, oxygen and other impurities in the blister copper can be removed before the copper is cast into anode for electrolytic refining.

COPPER Copper production TU Delft

2008-12-16  Refining the crude copper, usually in two steps 1. pyrometallurgically to fire-refined copper 2. electrolytically to high-purity electrolytic copper-1 of 11-Figure 1: Overview of copper production Benefication process Figure 2: Overview of a typical beneficiation process at a concentrator

Copper Environmental Profile

2019-3-4  In the next step, the blister copper is fire refined by the traditional process route or re-melted and cast into anodes for electro-refining. The output of electro-refining is refined copper cathode, containing over 99.99 percent copper.

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

Electrolytic Refining Meaning, Electrorefining of Copper

Electrolytic refining is a process of refining a metal (mainly copper) by the process of electrolysis. As far as the mechanism of the process is concerned, during electrolysis, a large chunk or slab of impure metal is used as the anode with a thin strip of pure metal at the