US20170029967A1 - Method for producing cathode copper - Google Patents

Method for producing cathode copper Download PDF

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Publication number
US20170029967A1
US20170029967A1 US15/303,082 US201515303082A US2017029967A1 US 20170029967 A1 US20170029967 A1 US 20170029967A1 US 201515303082 A US201515303082 A US 201515303082A US 2017029967 A1 US2017029967 A1 US 2017029967A1
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copper
slag
anode
suspension smelting
smelting furnace
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English (en)
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Akusti JAATINEN
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Outotec Finland Oy
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Outotec Finland Oy
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Publication of US20170029967A1 publication Critical patent/US20170029967A1/en
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • C22B15/005—Smelting or converting in a succession of furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • C22B15/0047—Smelting or converting flash smelting or converting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/005—Castings of light metals with high melting point, e.g. Be 1280 degrees C, Ti 1725 degrees C
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0056—Scrap treating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0056—Scrap treating
    • C22B15/0058—Spent catalysts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—Dry processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/006—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/14—Refining in the solid state
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the invention relates to a method for producing cathode copper as defined in the preamble of independent claim 1 .
  • a known production method for production of cathode copper, having a purity of more than 99.9%, from copper concentrate involves firstly smelting sulfidic copper concentrate in first pyrometallurgical phase in a first suspension smelting furnace by partial oxidation of the copper concentrate to obtain a copper matte phase that is further oxidized in a second pyrometallurgical phase in a second suspension smelting furnace to metallic copper i.e. blister copper.
  • a production method using a first and a second suspension smelting furnace is sometimes named a double flash process.
  • sulfidic copper concentrate may be directly smelted to metallic copper i.e.
  • blister copper in a direct-to-blister process in one single pyrometallurgical phase that is performed in one single suspension smelting furnace is further refined in anode furnaces by fire-refining to obtain molten anode copper, which is poured into anode molds to cast copper anodes.
  • This known production method for production of cathode copper involves additionally further subjecting cast anodes to electrolytic refining in electrolytic cells to produce cathode copper.
  • Anode scrap is obtained in the production of cathode copper in two stages.
  • Spent cast anodes from electrolytic refining constitute the primary source for anode scrap.
  • some of the cast anodes produced in the anode casting step do not meet certain quality requirements and are therefore rejected.
  • Spent cast anodes and rejected cast anodes contains in terms of mass percentages approximately 99% copper and this is about 15 to 20% of total mass of the primary copper produced. Therefore this material must be recycled.
  • FIG. 1 shows an example of a method according to the prior art, which method involves direct-to-blister smelting.
  • the method for producing anode copper shown in FIG. 1 comprises a smelting step including feeding sulfidic copper bearing material 1 , oxygen-bearing reaction gas 2 and slag-forming material 3 such as flux into a reaction shaft 4 of a suspension smelting furnace 5 by means of a burner 6 that is arranged at a top of the reaction shaft 4 of the suspension smelting furnace 5 , whereby feeding sulfidic copper bearing material 1 , oxygen-bearing reaction gas 2 and slag-forming material 3 react in the reaction shaft 4 into blister copper 7 and slag.
  • Blister copper 7 and slag 8 is collected in a settler 11 of the suspension smelting furnace 5 to foul′ a blister layer 9 containing blister copper 7 and a slag layer 10 containing slag 8 on top of the blister layer 9 in the settler 11 of the suspension smelting furnace 5 .
  • the method shown in FIG. 1 comprises a fire refining step including feeding blister copper 7 obtained in the smelting step into an anode furnace 12 and fire-refining blister copper in the anode furnace 12 to produce molten anode copper 13 in the anode furnace.
  • the method shown in FIG. 1 comprises an anode casting step including feeding anode copper 13 obtained in the fire refining step into anode casting molds 14 to produce cast anodes 15 .
  • the method shown in FIG. 1 comprises a quality checking step 16 for dividing the cast anodes 15 obtained in the anode casting step into accepted cast anodes 17 and rejected cast anodes 18 .
  • the method shown in FIG. 1 comprises an electrolytic refining step for subjecting accepted cast anodes 17 to electrolytic refining in an electrolytic cell 19 to produce cathode copper 20 , and as a by-product, spent cast anodes 21 .
  • the method shown in FIG. 1 comprises a recycling step for recycling anode copper of rejected cast anodes 18 and anode copper of spent cast anodes 21 .
  • the recycling step of the method according to the prior art method shown in FIG. 1 comprises feeding rejected cast anodes 18 and spent cast 21 into a separate scrap melting furnace 22 for smelting rejected cast anodes 18 and spent cast anodes 21 in the scrap melting furnace 22 and feeding copper anode smelt 23 from the scrap melting furnace 22 into anode casting molds 14 to produce cast anodes 15 .
  • rejected cast anodes 18 and spent cast anodes 21 are melted in the shaft furnace 22 to make new cast anodes 15 of the material of rejected cast anodes 18 and spent cast anodes 21 .
  • This is a simple solution that achieves the goal of recovering the copper from of rejected cast anodes 18 and spent cast anodes 21 .
  • the disadvantages of a such prior art solution are the expenses to build and to operate the separate scrap melting furnace 22 . Also from energy consumption and greenhouse gas emission point of view, this known solution cannot be considered to be good.
  • Publication WO 2013/186440 A1 presents a method and an arrangement for refining copper concentrate.
  • Publication JP 2000 239883 A presents a method for recycling anode returning material for casting, and the like, in copper refining, and charging device of anode returning material for casting, and the like, into refining furnace.
  • Publication JP H09 781 51 A presents a recycle method of valuable metals from scraps.
  • Publication WO 2004/005822 A1 presents a method and an arrangement for feeding an anode into a smelter.
  • the object of the invention is to provide an efficient method for refining copper concentrate.
  • the method for refining copper concentrate of the invention is characterized by the definitions of independent claim 1 .
  • the invention is based on using the excess thermal energy produced in the reactions in the suspension smelting furnace to smelt rejected cast anodes and spent cast anodes.
  • suspension smelting processes such as in double flash and direct-to-blister process
  • there is often a surplus of heat produced in the oxidation reactions in the suspension smelting furnaces meaning that the reactions produce more heat than is required for smelting the copper concentrate.
  • This is especially true with declining ore grades, since a decline in copper grade is usually accompanied by and incline in Fe and S contents, resulting in more reaction heat.
  • the excess of thermal energy can even be a problem, causing a bottleneck in the suspension smelting furnace.
  • the objective of the invention is both to recycle the anode scrap efficiently and to absorb excess heat in the reaction shaft.
  • rejected cast anodes and spent cast anodes are mechanically broken to produce anode copper grain of rejected cast anodes and spent cast anodes, and the anode copper grain is fed into the reaction shaft of the suspension smelting furnace.
  • the goal is that the anode copper grains are smelted on their way down from the upper part of the reaction shaft of the suspension smelting furnace to the settler of the suspension smelting furnace and not in the settler of the suspension smelting furnace.
  • the anode copper grain is preferably, but not necessarily, fed from the roof structure of the reaction shaft into the reaction shaft to enable sufficient time for the copper grains in the reaction shaft to melt. Even if the goal of melting the anode scrap in the reaction shaft is not completely reached, the anode copper grain will be significantly heated in the reaction shaft, thus lowering the cooling effect that melting it will have on the furnace settler.
  • the heat for smelting the anode scrap may be provided by increasing the oxygen enrichment in the suspension smelting furnace. This increases the technical oxygen consumption. In locations where oxygen is significantly cheaper than natural gas, this is a significant saving in operation costs. Consuming oxygen is also more sustainable than burning fossil fuels considering both the environmental impact and the availability of Earth's finite resources. Utilizing higher oxygen enrichment also results in smaller volume of gas in the suspension smelting process, reducing certain costs of the process.
  • FIG. 1 is a schematic illustration showing the principle of a method according to the prior art
  • FIG. 2 is a schematic illustration showing the principle of a first embodiment of the method
  • FIG. 3 is a schematic illustration showing a second embodiment of the method
  • FIG. 4 is a schematic illustration showing the principle of a third embodiment of the method
  • FIG. 5 is a schematic illustration showing a fourth embodiment of the method.
  • FIG. 6 is a schematic illustration showing a fifth embodiment of the method.
  • FIGS. 2 to 6 show some embodiments of the method for producing cathode copper.
  • the method comprises a smelting step including feeding sulfidic copper bearing material 1 ; 1 a , 1 b such as sulfidic copper concentrate 1 a or finely-ground copper matte 1 b and additionally oxygen-bearing reaction gas 2 and slag-forming material 3 such as flux into a reaction shaft 4 of a suspension smelting furnace 5 ; 5 a , 5 b by means of a burner 6 that is arranged at a top of the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b.
  • sulfidic copper bearing material 1 ; 1 a , 1 b such as sulfidic copper concentrate 1 a or finely-ground copper matte 1 b and additionally oxygen-bearing reaction gas 2 and slag-forming material 3 such as flux into a reaction shaft 4 of a suspension smelting furnace 5 ; 5 a , 5 b by means of a burner 6 that is arranged at a top of the reaction shaft 4
  • sulfidic copper bearing material 1 , oxygen-bearing reaction gas 2 and slag-forming material 3 react in the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b into blister copper 7 and slag 8 , and blister copper 7 and slag 8 is collected in a settler 11 of the suspension smelting furnace 5 to form a blister layer 9 containing blister copper 7 and a slag layer 10 containing slag 8 on top of the blister layer 9 in the settler 11 of the suspension smelting furnace 5 ; 5 a , 5 b.
  • the method comprises additionally a fire refining step including feeding blister copper 7 obtained in the smelting step into an anode furnace 12 and fire-refining blister copper 7 in the anode furnace 12 producing molten anode copper 13 in the anode furnace 12 .
  • the method comprises additionally an anode casting step including feeding molten anode copper 13 obtained in the fire refining step into anode casting molds 14 to produce cast anodes 15 .
  • the method comprises additionally a quality checking step 16 for dividing cast anodes 15 obtained in the anode casting step into accepted cast anodes 17 and rejected cast anodes 18 .
  • the method comprises additionally an electrolytic refining step including subjecting accepted cast anodes 17 to electrolytic refining in an electrolytic cell 19 to produce cathode copper 20 and as a by-product, spent cast anodes 21 .
  • the method comprises additionally a recycling step for recycling anode copper of rejected cast anodes 18 and anode copper of spent cast anodes 21 .
  • the recycling step includes feeding rejected cast anodes 18 and spent cast anodes 21 into a mechanical breaker 24 such as a shredder for mechanically breaking the rejected cast anodes 18 and spent cast anodes 21 to produce anode copper grain 25 , and feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b by means of copper grain feeding means 27 .
  • a mechanical breaker 24 such as a shredder for mechanically breaking the rejected cast anodes 18 and spent cast anodes 21 to produce anode copper grain 25
  • feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b by means of copper grain feeding means 27 .
  • the method may include feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b at a distance from the burner 6 .
  • the method may include feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b through the burner 6 .
  • the method may include feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b from the top of the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b.
  • the method may include feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b at a feeding that is situated between a connection point between the settler 11 and the reaction shaft 4 and the top of the reaction shaft 4 , i.e. at a feeding that is situated at a vertical level between a connection point between the settler 11 and the reaction shaft 4 and the top of the reaction shaft 4 .
  • the method may include feeding additionally inert gas such as nitrogen 26 into the reaction shaft 4 of the suspension smelting furnace 5 ; 5 a , 5 b to prevent hot gases from the suspension smelting furnace 5 ; 5 a , 5 b from entering the copper grain feeding means 27 .
  • inert gas such as nitrogen 26
  • the method may include a drying step for drying anode copper grain 25 in a drying means 28 prior feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 , as shown in the embodiment illustrated in FIG. 6 .
  • the method may include a pre-heating step for pre-heating anode copper grain 25 in a heating means (not shown in the figures) prior feeding anode copper grain 25 into the reaction shaft 4 of the suspension smelting furnace 5 .
  • the method may include using a screw feeder for feeding anode copper grain 25 into the suspension smelting furnace 5
  • the method comprises feeding slag 8 obtained in the first smelting step into a slag cleaning electric furnace 29 .
  • the fourth and the fifth embodiment of the method comprises a slag treating step for treating slag 8 in the slag cleaning electric furnace 29 with reduction agent 30 fed in the slag cleaning electric furnace 29 to produce an electric furnace slag layer 31 containing electric furnace slag 32 and an electric furnace blister copper layer 33 containing electric furnace blister copper 34 .
  • the fourth and the fifth embodiments of the method comprise feeding electric furnace blister copper 34 obtained in the slag treating step into an anode furnace 12 .
  • the fourth and the fifth embodiment of the method comprise feeding electric furnace slag 32 obtained in the slag threating step to a final slag cleaning means 35 .
  • the fourth and the fifth embodiment of the method comprise a final slag cleaning step for subjecting electric furnace slag 32 to final slag cleaning treatment to produce waste slag 36 and slag concentrate or other copper containing material 37 of electric furnace slag 32 .
  • the fourth and the fifth embodiment of the method comprises feeding slag concentrate or other copper containing material 37 obtained in the flotation step into the reaction shaft 4 of the suspension smelting furnace 5 .
  • the second embodiment illustrated in FIG. 3 and the third embodiment illustrated in FIG. 4 are so-called double flash methods, whereas the first embodiment illustrated in FIG. 2 , the fourth embodiment illustrated in FIG. 5 , and the fifth embodiment illustrated in FIG. 6 are direct-to-blister methods. It is obvious for one skilled in the art that the embodiments illustrated in FIG. 2, 5 or 6 could employ a first suspension smelting furnace 5 a and a second suspension smelting furnace 5 b as illustrated in FIGS. 3 and 4 and that anode copper grain 25 could be fed into at least one of the first suspension smelting furnace 5 a and the second suspension smelting furnace 5 b as illustrated in FIGS. 3 and 4 .
  • the first embodiment, the fourth embodiment, and the fifth embodiment illustrated in FIGS. 2, 5 and 6 comprises so-called direct-to-blister smelting in the suspension smelting furnace 5 .
  • the smelting step includes feeding sulfidic copper bearing material in the form of copper sulphide concentrate 1 a , oxygen-bearing reaction gas 2 and slag-forming material 3 into a reaction shaft 4 of a suspension smelting furnace 5 by means of a burner 6 that is arranged at a top of the reaction shaft 4 of the suspension smelting furnace 5 .
  • Matte 1 b and slag 8 is collected in a settler 11 of the suspension smelting furnace 5 to form a matte layer 38 containing matte 1 b and a slag layer 10 containing slag 8 on top of the matte layer 38 in the settler 11 of the suspension smelting furnace 5 a
  • the second embodiment and the third embodiment illustrated in FIGS. 3 and 3 comprises so-called double flash smelting.
  • the smelting step includes a first smelting step comprising feeding copper sulphide concentrate 1 a , oxygen-bearing reaction gas 2 and slag-forming material 3 into a reaction shaft 4 of a first suspension smelting furnace 5 a by means of a burner 6 that is arranged at a top of the reaction shaft 4 of the first suspension smelting furnace 5 a .
  • Matte 1 b and slag 8 is collected in a settler 11 of the first suspension smelting furnace 5 to form a matte layer 38 containing matte 1 b and a slag layer 10 containing slag 8 on top of the matte layer 38 in the settler 11 of the first suspension smelting furnace 5 a.
  • the smelting step includes additionally a second smelting step comprising feeding matte 1 b obtained in the first smelting step, oxygen-bearing reaction gas 2 and slag-forming material 3 into a reaction shaft 4 of a second suspension smelting furnace 5 b by means of a burner 6 that is arranged at a top of the reaction shaft 4 of the second suspension smelting furnace 5 b .
  • Matte 1 b , oxygen-bearing reaction gas 2 and slag-forming material 3 react in the reaction shaft 3 of the second suspension smelting furnace 5 b into blister copper 7 and slag 8 .
  • Blister copper 7 and slag 8 is collected in a settler 11 of the second suspension smelting furnace 5 to form a layer containing blister copper 7 and a slag layer 10 containing slag 8 on top of the layer in the settler 11 of the second suspension smelting furnace 5 .
  • anode copper grain 25 is in the recycling step fed into the reaction shaft 4 of the second suspension smelting furnace 5 b.
  • anode copper grain 25 is in the recycling step fed into the reaction shaft 4 of the first suspension smelting furnace 5 a .
  • the anode copper grain 25 will have an effect on the requirement of oxygen-bearing reaction gas 2 which has to be taken into account in controlling the process.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
US15/303,082 2014-04-17 2015-04-16 Method for producing cathode copper Abandoned US20170029967A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20145367A FI126374B (en) 2014-04-17 2014-04-17 PROCEDURE FOR PRODUCING CATHOD COPPER
FI20145367 2014-04-17
PCT/FI2015/050262 WO2015158963A1 (en) 2014-04-17 2015-04-16 Method for producing cathode copper

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US (1) US20170029967A1 (sr)
EP (1) EP3132064B1 (sr)
KR (1) KR101787305B1 (sr)
CN (1) CN106164305B (sr)
CL (1) CL2016002581A1 (sr)
EA (1) EA031689B1 (sr)
ES (1) ES2694167T3 (sr)
FI (1) FI126374B (sr)
PL (1) PL3132064T3 (sr)
RS (1) RS57941B1 (sr)
TR (1) TR201815931T4 (sr)
WO (1) WO2015158963A1 (sr)

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WO2017140723A1 (en) * 2016-02-19 2017-08-24 Flsmidth A/S Hydrometallurgical processes for leaching or dissolving metal and enhancing electrorefinery and smelting operations
WO2018015611A1 (en) * 2016-07-22 2018-01-25 Outotec (Finland) Oy Method for refining sulfidic copper concentrate
CN106927274A (zh) * 2017-04-07 2017-07-07 东莞市佳乾新材料科技有限公司 一种应用于电解槽上的进料装置
CN107523699A (zh) * 2017-08-15 2017-12-29 铜陵有色金属集团股份有限公司金冠铜业分公司 粗铜精炼生产系统及其生产方法
CN108315566A (zh) * 2018-01-16 2018-07-24 张家港市佰坤物资有限公司 一种精铜生产工艺
CN110093628B (zh) * 2019-04-30 2021-06-08 云南铜业股份有限公司西南铜业分公司 一种生成核壳结构铜阳极泥的铜电解精炼方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759501A (en) * 1971-12-13 1973-09-18 Kennecott Copper Corp Cyclonic smelting apparatus
US3901489A (en) * 1972-05-04 1975-08-26 Mitsubishi Kizoku Kabushiki Ka Continuous process for refining sulfide ores
US4415356A (en) * 1980-10-01 1983-11-15 Inco Limited Process for autogenous oxygen smelting of sulfide materials containing base metals
JPH0978151A (ja) * 1995-09-12 1997-03-25 Nikko Kinzoku Kk スクラップ類からの有価金属のリサイクル方法
US5662730A (en) * 1994-12-08 1997-09-02 Nippon Mining & Metals Co., Ltd. Method for pyrometallurgical smelting of copper
JP2000239883A (ja) * 1999-02-19 2000-09-05 Nippon Mining & Metals Co Ltd 銅製錬におけるアノード鋳返し材料等のリサイクル方法及びアノード鋳返し材料等の精製炉装入装置
JP2001181747A (ja) * 1999-12-17 2001-07-03 Nippon Mining & Metals Co Ltd 粉状故銅の固形化による処理方法及び粉状故銅の固形化物
WO2009077651A1 (en) * 2007-12-17 2009-06-25 Outotec Oyj Method for refining copper concentrate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI117110B (fi) * 2002-07-05 2006-06-15 Outokumpu Oy Anodin syöttö sulatusreaktoriin
FI116686B (fi) * 2003-07-17 2006-01-31 Outokumpu Oy Menetelmä kuparirikasteiden sulattamiseksi
FI121852B (fi) * 2009-10-19 2011-05-13 Outotec Oyj Menetelmä polttoainekaasun syöttämiseksi suspensiosulatusuunin reaktiokuiluun ja rikastepoltin
FI124028B (en) * 2012-06-13 2014-02-14 Outotec Oyj Method and arrangement for refining copper concentrate

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3759501A (en) * 1971-12-13 1973-09-18 Kennecott Copper Corp Cyclonic smelting apparatus
US3901489A (en) * 1972-05-04 1975-08-26 Mitsubishi Kizoku Kabushiki Ka Continuous process for refining sulfide ores
US4415356A (en) * 1980-10-01 1983-11-15 Inco Limited Process for autogenous oxygen smelting of sulfide materials containing base metals
US5662730A (en) * 1994-12-08 1997-09-02 Nippon Mining & Metals Co., Ltd. Method for pyrometallurgical smelting of copper
JPH0978151A (ja) * 1995-09-12 1997-03-25 Nikko Kinzoku Kk スクラップ類からの有価金属のリサイクル方法
JP2000239883A (ja) * 1999-02-19 2000-09-05 Nippon Mining & Metals Co Ltd 銅製錬におけるアノード鋳返し材料等のリサイクル方法及びアノード鋳返し材料等の精製炉装入装置
JP2001181747A (ja) * 1999-12-17 2001-07-03 Nippon Mining & Metals Co Ltd 粉状故銅の固形化による処理方法及び粉状故銅の固形化物
WO2009077651A1 (en) * 2007-12-17 2009-06-25 Outotec Oyj Method for refining copper concentrate

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EP3132064B1 (en) 2018-08-15
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CN106164305A (zh) 2016-11-23
CL2016002581A1 (es) 2017-02-10
PL3132064T3 (pl) 2019-03-29
ES2694167T3 (es) 2018-12-18
KR20160134800A (ko) 2016-11-23
FI20145367A (fi) 2015-10-18
FI126374B (en) 2016-10-31
WO2015158963A1 (en) 2015-10-22
RS57941B1 (sr) 2019-01-31
EA031689B1 (ru) 2019-02-28
CN106164305B (zh) 2018-10-09
EP3132064A1 (en) 2017-02-22
EA201691863A1 (ru) 2017-03-31

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