US20060037435A1 - Method for treating slag - Google Patents
Method for treating slag Download PDFInfo
- Publication number
- US20060037435A1 US20060037435A1 US10/536,631 US53663105A US2006037435A1 US 20060037435 A1 US20060037435 A1 US 20060037435A1 US 53663105 A US53663105 A US 53663105A US 2006037435 A1 US2006037435 A1 US 2006037435A1
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- US
- United States
- Prior art keywords
- copper
- slag
- leaching
- blister
- smelting furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- 239000002893 slag Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 33
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000010949 copper Substances 0.000 claims abstract description 50
- 229910052802 copper Inorganic materials 0.000 claims abstract description 46
- 238000003723 Smelting Methods 0.000 claims abstract description 21
- 239000012141 concentrate Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000000725 suspension Substances 0.000 claims abstract description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 15
- 238000002386 leaching Methods 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 8
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 claims description 2
- 238000005868 electrolysis reaction Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 238000000622 liquid--liquid extraction Methods 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Images
Classifications
-
- 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
- C22B7/04—Working-up slag
-
- 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
- C22B15/0054—Slag, slime, speiss, or dross 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
- C22B15/0028—Smelting or converting
- C22B15/0047—Smelting or converting flash smelting or converting
-
- 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
- C22B7/006—Wet processes
-
- 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 defined in the preamble of claim 1 for treating the slag created in the production of blister copper.
- the thermal value of the concentrate is generally the lower, the higher is the copper content of the concentrate. With a high copper content, the share of iron sulfide minerals is low.
- a sufficiently high oxygen enrichment can be used, and as a result, the gas quantities can be kept moderate.
- a concentrate with a lower copper content is suited in the production of blister copper, if it has a low iron content, in which case the created slag quantity is not remarkably large.
- a two-step slag cleaning method includes either two electric furnaces or an electric furnace and a slag concentration plant. In the electric furnace, the slag is reduced by coke, so that the precious metals bound in the slag phase are reduced and separated as a distinctive copper phase underneath the slag layer. In case the slags are processed in a slag concentration plant, the slag concentrate can be fed back into the smelting reactor.
- the blister copper is conducted to be refined in an anode furnace.
- the iron content in the blister is still so high that there is often needed a separate treatment for the blister in a converter.
- One method is electric furnace pretreatment, where the created blister copper is processed together with bulk blister in an anode furnace, but there is still left so much copper in the slag that it must for economical reasons be recovered by concentration-technical means.
- the object of the invention is to introduce a new method for treating slag created in the production of blister copper produced directly of concentrate.
- a particular object of the invention is to achieve a more effective and more advantageous way, with respect to overall economy, for recovering the slagging copper in the production of blister copper.
- the invention is characterized by what is set forth in the characterizing part of claim 1 .
- Other preferred embodiments of the invention are characterized by what is set forth in the rest of the claims.
- the method according to the invention has many advantages. According to the method, there is advantageously recovered the copper contained in the slag created in the production of blister copper that is produced directly of concentrate.
- the method of the invention simplifies the recovery of copper, and in addition, the method enables an improved control of impurities.
- the recovery of copper contained in hydrometallurgical slag reduces energy consumption in comparison with electric furnace reduction. In addition, gas and dust emissions are reduced in comparison with pyrometallurgical recovery.
- FIG. 1 Diagram of a process according to the invention
- FIG. 1 illustrates a method according to the invention for processing the slag, i.e. blister slag, created in the production of blister copper produced in a suspension smelting furnace, such as a flash smelting furnace, in order to recover the copper, in which case at least part of the slag is leached in at least one step.
- Copper concentrate, flux and oxygen enriched air are fed into smelting 1 in a suspension smelting furnace, such as a flash smelting furnace.
- Dried concentrate particles react swiftly in hot suspension with oxygen enriched air. Energy that is released in the reactions is utilized in the process.
- Part of the sulfur is oxidized into sulfur dioxide, and iron is oxidized into iron oxides, thus creating slag with the flux.
- the reaction products are settled on the bottom of the suspension smelting furnace creating two separate molten phases: blister copper and blister slag.
- the gases created in the process are conducted further, to be processed in a known fashion.
- the blister copper created in the suspension smelting furnace is conducted into anode furnace treatment 2 , refined there in a known fashion and cast into copper anodes.
- the blister slag created in smelting 1 is tapped out of the suspension smelting furnace through the provided circulation channels, such as launders, and is further conducted to be treated in order to recover the copper contained in the blister slag.
- First the blister slag is transferred to granulation and grinding 3 .
- Granulated blister slag is ground for example in wet grinding down to a given grain size in order to obtain more reactive surface.
- leaching 4 the metals contained in the blister slag are leached. According to the example below, the leaching 4 is carried out in oxidizing conditions with sulfuric acid, so that copper sulfate is created.
- the amount of added sulfuric acid is advantageously 500-900 grams per one kilo of slag.
- the leaching can also be carried out by an ammoniacal solution, a chloridic solution or as bacteria leaching.
- copper is separated in copper precipitation 5 .
- copper is precipitated for example by hydroxide precipitation or sulfide precipitation.
- hydroxide precipitation copper is precipitated by limestone, and the created copper-bearing precipitate is conducted back to smelting 1 .
- sulfide precipitation copper is precipitated by hydrogen sulfide, and the created copper-bearing precipitate is conducted back to smelting 1 .
- Copper can also be recovered in liquid-liquid extraction and electrolysis as cathode copper.
- the total volume of water and added sulfuric acid was exactly one liter.
- the solution temperature was 90° C.
- the quantity of sulfuric acid (H 2 SO 4 ) that was added in the experiment was 806 g/1000 g slag.
- the weight of the final precipitate was 77.4 g and copper content 3.1%, which means that the total copper yield in the solution was 96.3%.
- the experiment was repeated in similar conditions for slag that was, instead of slow cooling, granulated by water directly from the molten state, so that the obtained product was finely divided granule with a corresponding composition.
- the obtained total leaching yield for copper in similar conditions was 95.8%, which is of the same order as with slowly cooled slag, when the accuracy of the analysis is taken into account.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Extraction Or Liquid Replacement (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention relates to a method for treating slag created in the production of blister copper processed directly from concentrate in a suspension smelting furnace, such as a flash smelting furnace, in order to recover the copper, so that at least part of the slag is leached in at least one step.
Description
- The invention relates to a method defined in the preamble of
claim 1 for treating the slag created in the production of blister copper. - The production of blister copper of sulfidic concentrates directly in one step in a suspension reactor, such as a flash smelting furnace, is economically sensible, with certain boundary conditions. Among the most remarkable problems in the direct production of blister copper are the slagging of copper and the created large quantities of slag. In order to ensure a sufficient recovery of copper, the amount of copper in slag must be recovered in connection with the slag cleaning. Apart from the quantity of slag, another problem is the large heat amount created in the combustion of sulfidic concentrates. In that case, there is applied a lower oxygen enrichment in the process air, which means that the heating of the nitrogen contained in the process air balances the heat economy. However, this produces a large quantity of process gases, which again results in a large furnace space and above all in large gas processing units.
- In case the copper content of the concentrate is sufficiently high, typically at least 37% Cu, the production of blister is economically possible directly in one step. The thermal value of the concentrate is generally the lower, the higher is the copper content of the concentrate. With a high copper content, the share of iron sulfide minerals is low. When processing the above described concentrate, a sufficiently high oxygen enrichment can be used, and as a result, the gas quantities can be kept moderate. Also a concentrate with a lower copper content is suited in the production of blister copper, if it has a low iron content, in which case the created slag quantity is not remarkably large.
- From the Finnish patent application 982818, there is known a method for producing blister copper, in which method in a smelting reactor there is conducted, in addition to the concentrate, also cooled and ground copper matte. Now there is created a smaller quantity of slag in proportion to the quantity of produced blister copper than with the traditional method. Now also copper losses in slag are reduced. The created slags are processed further either in a one-step or preferably a two-step slag cleaning process. A two-step slag cleaning method includes either two electric furnaces or an electric furnace and a slag concentration plant. In the electric furnace, the slag is reduced by coke, so that the precious metals bound in the slag phase are reduced and separated as a distinctive copper phase underneath the slag layer. In case the slags are processed in a slag concentration plant, the slag concentrate can be fed back into the smelting reactor. The blister copper is conducted to be refined in an anode furnace.
- If the slag is processed in one step in an electric furnace, so that the quantity of copper in the slag is economically insignificant, the iron content in the blister is still so high that there is often needed a separate treatment for the blister in a converter. One method is electric furnace pretreatment, where the created blister copper is processed together with bulk blister in an anode furnace, but there is still left so much copper in the slag that it must for economical reasons be recovered by concentration-technical means.
- The object of the invention is to introduce a new method for treating slag created in the production of blister copper produced directly of concentrate. A particular object of the invention is to achieve a more effective and more advantageous way, with respect to overall economy, for recovering the slagging copper in the production of blister copper.
- The invention is characterized by what is set forth in the characterizing part of
claim 1. Other preferred embodiments of the invention are characterized by what is set forth in the rest of the claims. - The method according to the invention has many advantages. According to the method, there is advantageously recovered the copper contained in the slag created in the production of blister copper that is produced directly of concentrate. The method of the invention simplifies the recovery of copper, and in addition, the method enables an improved control of impurities. The recovery of copper contained in hydrometallurgical slag reduces energy consumption in comparison with electric furnace reduction. In addition, gas and dust emissions are reduced in comparison with pyrometallurgical recovery.
- The invention is described in more detail below with reference to the appended drawing.
-
FIG. 1 Diagram of a process according to the invention -
FIG. 1 illustrates a method according to the invention for processing the slag, i.e. blister slag, created in the production of blister copper produced in a suspension smelting furnace, such as a flash smelting furnace, in order to recover the copper, in which case at least part of the slag is leached in at least one step. Copper concentrate, flux and oxygen enriched air are fed into smelting 1 in a suspension smelting furnace, such as a flash smelting furnace. Dried concentrate particles react swiftly in hot suspension with oxygen enriched air. Energy that is released in the reactions is utilized in the process. Part of the sulfur is oxidized into sulfur dioxide, and iron is oxidized into iron oxides, thus creating slag with the flux. The reaction products are settled on the bottom of the suspension smelting furnace creating two separate molten phases: blister copper and blister slag. The gases created in the process are conducted further, to be processed in a known fashion. The blister copper created in the suspension smelting furnace is conducted intoanode furnace treatment 2, refined there in a known fashion and cast into copper anodes. - The blister slag created in smelting 1 is tapped out of the suspension smelting furnace through the provided circulation channels, such as launders, and is further conducted to be treated in order to recover the copper contained in the blister slag. First the blister slag is transferred to granulation and grinding 3. Granulated blister slag is ground for example in wet grinding down to a given grain size in order to obtain more reactive surface. In leaching 4, the metals contained in the blister slag are leached. According to the example below, the
leaching 4 is carried out in oxidizing conditions with sulfuric acid, so that copper sulfate is created. The amount of added sulfuric acid is advantageously 500-900 grams per one kilo of slag. The leaching can also be carried out by an ammoniacal solution, a chloridic solution or as bacteria leaching. After the leaching step, from the solution containing metal sulfates, copper is separated incopper precipitation 5. In the precipitation step, from the solution containing metal sulfates, copper is precipitated for example by hydroxide precipitation or sulfide precipitation. In hydroxide precipitation, copper is precipitated by limestone, and the created copper-bearing precipitate is conducted back to smelting 1. In sulfide precipitation, copper is precipitated by hydrogen sulfide, and the created copper-bearing precipitate is conducted back to smelting 1. Copper can also be recovered in liquid-liquid extraction and electrolysis as cathode copper. - In order to verify the method, there were carried out solution experiments with sulfuric acid in an acid-proof two-liter reactor with a lid. The reactor was provided with four flow baffling plates, one reflux condenser and an agitator. In the reactor, there was also connected continuous pH-measuring, a temperature regulator and oxygen bubbling underneath the agitator blades. A heat plate was used for heating.
- At the beginning of the experiment, the slag (200 g=grams) was leached into water, the water quantity being a little less than a liter. In all experiments, the total volume of water and added sulfuric acid was exactly one liter. The solution temperature was 90° C. The quantity of sulfuric acid (H2SO4) that was added in the experiment was 806 g/1000 g slag.
- The leaching period in all experiments was 6 hours, and mechanical agitation was applied in the experiments (about 770 r/min=rotations/minute) as well as oxygen (0.50 l/min=liters/minute).
- Strong sulfuric acid (content 95% by weight) was gradually added, and at the same time the temperature was adjusted to 90° C. The measurement of the reaction time was started when all acid had been supplied. Slurry samples were taken when 0, 2, 4 and 6 hours had passed from the beginning of the experiment. In the filtrate and precipitate of the sample, there were analyzed copper (Cu) and iron (Fe).
- Originally the leached slag contained 32.5% Cu and 23.9% Fe. The analyses and the leaching yields obtained on the basis thereof are given in the table below:
Solution Precipitate Cu yield into Time pH Cu, g/l Fe, g/l Cu, % Fe, % solution % 0 h 0.5 59.8 16.8 8.8 23.6 72.6 2 h 1.1 80.0 22.4 4.1 25.7 88.3 4 h 1.2 82.0 23.6 3.4 23.6 89.4 6 h 1.2 87.0 24.6 3.1 23.8 90.4 - The weight of the final precipitate was 77.4 g and copper content 3.1%, which means that the total copper yield in the solution was 96.3%.
- The experiment was repeated in similar conditions for slag that was, instead of slow cooling, granulated by water directly from the molten state, so that the obtained product was finely divided granule with a corresponding composition. The obtained total leaching yield for copper in similar conditions was 95.8%, which is of the same order as with slowly cooled slag, when the accuracy of the analysis is taken into account.
- From the solution, copper was precipitated selectively by adjusting acidity, so that iron was precipitated in the first step and copper in the second step, and thus the non-desired iron could be separated from the copper.
- For a man skilled in the art it is obvious that the various preferred embodiments of the invention are not restricted to the above examples only, but may vary within the appended claims.
Claims (11)
1. A method for recovering copper from slag created in the production of blister copper processed directly from concentrate in a suspension smelting furnace, comprising leaching at least part of the slag in at least one step, dissolving copper of the slag, precipitating the dissolved copper and returning the precipitated copper to the smelting process.
2. The method according to claim 1 , further comprising granulating and grinding the slag before leaching.
3. The method according to claim 1 , wherein the leaching is carried out with sulfuric acid.
4. The method according to claim 1 , wherein the leaching is carried out with an ammoniacal solution.
5. The method according to claim 1 , wherein the leaching is carried out with a chloridic solution.
6. The method according to claim 1 , wherein the leaching is carried out as a bacteria solution.
7. The method according to claim 1 , wherein the precipitating of the copper is recovered by hydroxide precipitation.
8. The method according to claim 1 , wherein the precipitating of the copper is recovered by sulfide precipitation.
9. The method according to claim 1 , wherein the precipitating of the copper is recovered in liquid-liquid extraction and electrolysis as cathode copper.
10. The method according to claim 1 , wherein the returning of precipitated copper is conducted back into the suspension smelting furnace.
11. The method according to claim 1 , wherein said suspension smelting furnace is a flash smelting furnace.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20022150A FI115638B (en) | 2002-12-05 | 2002-12-05 | Procedure for treating slag |
FI20022150 | 2002-12-05 | ||
PCT/FI2003/000898 WO2004050925A1 (en) | 2002-12-05 | 2003-11-24 | Method for treating slag |
Publications (1)
Publication Number | Publication Date |
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US20060037435A1 true US20060037435A1 (en) | 2006-02-23 |
Family
ID=8565039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/536,631 Abandoned US20060037435A1 (en) | 2002-12-05 | 2003-11-24 | Method for treating slag |
Country Status (14)
Country | Link |
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US (1) | US20060037435A1 (en) |
EP (1) | EP1579017A1 (en) |
JP (1) | JP2006509103A (en) |
KR (1) | KR20050085402A (en) |
CN (1) | CN1720342A (en) |
AR (1) | AR042301A1 (en) |
AU (1) | AU2003283455A1 (en) |
BR (1) | BR0317061A (en) |
EA (1) | EA200500756A1 (en) |
FI (1) | FI115638B (en) |
MX (1) | MXPA05005997A (en) |
PE (1) | PE20040630A1 (en) |
PL (1) | PL376932A1 (en) |
WO (1) | WO2004050925A1 (en) |
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RU2614293C2 (en) * | 2015-06-04 | 2017-03-24 | Общество с ограниченной ответственностью "Институт Гипроникель" | Method of low-autogenous raw material processing in flash smelting furnaces |
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FI116686B (en) * | 2003-07-17 | 2006-01-31 | Outokumpu Oy | Method for melting copper ligands |
EP2053137A1 (en) * | 2007-10-19 | 2009-04-29 | Paul Wurth S.A. | Recovery of waste containing copper and other valuable metals |
FI120157B (en) * | 2007-12-17 | 2009-07-15 | Outotec Oyj | A process for refining copper concentrate |
KR101389430B1 (en) * | 2012-08-23 | 2014-04-25 | 엘에스니꼬동제련 주식회사 | The recovery method of valuble metals included in converter slag at copper smelter |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2693405A (en) * | 1952-06-20 | 1954-11-02 | Sherritt Gordon Mines Ltd | Method of separating copper values from and ammoniacal solution |
US3224873A (en) * | 1963-02-25 | 1965-12-21 | Gen Mills Inc | Liquid-liquid recovery of copper values using alpha-hydroxy oximes |
US3632308A (en) * | 1969-12-05 | 1972-01-04 | Universal Oil Prod Co | Recovery of copper values from slag |
US3928551A (en) * | 1970-07-27 | 1975-12-23 | American Cyanamid Co | Leaching polyelectrolyte fluidized solids |
US4034063A (en) * | 1974-03-22 | 1977-07-05 | Industrial Resources, Inc. | Process for control of SOx emissions from copper smelter operations |
US4152142A (en) * | 1977-02-28 | 1979-05-01 | Kennecott Copper Corporation | Recovery of copper values from iron-containing ore materials as mined and smelted |
US4484730A (en) * | 1982-09-30 | 1984-11-27 | Iso "Metalurgkomplekt" | Device for leaching copper from slags |
US4552632A (en) * | 1983-07-08 | 1985-11-12 | Elkem A/S | Hydrometallurgical method of extraction of copper from sulphide-containing material |
US5616168A (en) * | 1994-02-28 | 1997-04-01 | Kennecott Utah Copper Corporation | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
US20050217422A1 (en) * | 2002-05-03 | 2005-10-06 | Outokumpu Oyj | Method for refining concentrate containing precious metals |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2200200A1 (en) * | 1972-09-25 | 1974-04-19 | Albright & Wilson | Recovery of zinc and copper from scrap - by lixiviation with aq ammonium bicarbonate and pptn as basic carbonates |
EP1257676B1 (en) * | 2000-01-04 | 2004-03-03 | Outokumpu Oyj | Method for the production of blister copper in suspension reactor |
CA2363969C (en) * | 2001-11-26 | 2009-01-13 | Walter Curlook | Process for the recovery of residual metal values from smelter waste slags, and from converter slags |
-
2002
- 2002-12-05 FI FI20022150A patent/FI115638B/en not_active IP Right Cessation
-
2003
- 2003-11-24 JP JP2004556365A patent/JP2006509103A/en not_active Abandoned
- 2003-11-24 KR KR1020057010244A patent/KR20050085402A/en not_active Application Discontinuation
- 2003-11-24 CN CNA2003801049585A patent/CN1720342A/en active Pending
- 2003-11-24 US US10/536,631 patent/US20060037435A1/en not_active Abandoned
- 2003-11-24 WO PCT/FI2003/000898 patent/WO2004050925A1/en not_active Application Discontinuation
- 2003-11-24 MX MXPA05005997A patent/MXPA05005997A/en unknown
- 2003-11-24 EA EA200500756A patent/EA200500756A1/en unknown
- 2003-11-24 BR BR0317061A patent/BR0317061A/en not_active IP Right Cessation
- 2003-11-24 AU AU2003283455A patent/AU2003283455A1/en not_active Abandoned
- 2003-11-24 EP EP20030775423 patent/EP1579017A1/en not_active Withdrawn
- 2003-11-24 PL PL37693203A patent/PL376932A1/en not_active Application Discontinuation
- 2003-12-02 PE PE2003001224A patent/PE20040630A1/en not_active Application Discontinuation
- 2003-12-04 AR ARP030104479 patent/AR042301A1/en not_active Application Discontinuation
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2693405A (en) * | 1952-06-20 | 1954-11-02 | Sherritt Gordon Mines Ltd | Method of separating copper values from and ammoniacal solution |
US3224873A (en) * | 1963-02-25 | 1965-12-21 | Gen Mills Inc | Liquid-liquid recovery of copper values using alpha-hydroxy oximes |
US3632308A (en) * | 1969-12-05 | 1972-01-04 | Universal Oil Prod Co | Recovery of copper values from slag |
US3928551A (en) * | 1970-07-27 | 1975-12-23 | American Cyanamid Co | Leaching polyelectrolyte fluidized solids |
US4034063A (en) * | 1974-03-22 | 1977-07-05 | Industrial Resources, Inc. | Process for control of SOx emissions from copper smelter operations |
US4152142A (en) * | 1977-02-28 | 1979-05-01 | Kennecott Copper Corporation | Recovery of copper values from iron-containing ore materials as mined and smelted |
US4484730A (en) * | 1982-09-30 | 1984-11-27 | Iso "Metalurgkomplekt" | Device for leaching copper from slags |
US4552632A (en) * | 1983-07-08 | 1985-11-12 | Elkem A/S | Hydrometallurgical method of extraction of copper from sulphide-containing material |
US5616168A (en) * | 1994-02-28 | 1997-04-01 | Kennecott Utah Copper Corporation | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
US20050217422A1 (en) * | 2002-05-03 | 2005-10-06 | Outokumpu Oyj | Method for refining concentrate containing precious metals |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102605191A (en) * | 2012-04-16 | 2012-07-25 | 阳谷祥光铜业有限公司 | Method for directly producing row copper by copper concentrate |
US8771396B2 (en) | 2012-04-16 | 2014-07-08 | Xiangguang Copper Co., Ltd. | Method for producing blister copper directly from copper concentrate |
RU2614293C2 (en) * | 2015-06-04 | 2017-03-24 | Общество с ограниченной ответственностью "Институт Гипроникель" | Method of low-autogenous raw material processing in flash smelting furnaces |
Also Published As
Publication number | Publication date |
---|---|
EP1579017A1 (en) | 2005-09-28 |
AU2003283455A1 (en) | 2004-06-23 |
MXPA05005997A (en) | 2005-08-18 |
EA200500756A1 (en) | 2005-12-29 |
WO2004050925A1 (en) | 2004-06-17 |
CN1720342A (en) | 2006-01-11 |
PE20040630A1 (en) | 2004-11-11 |
FI20022150A0 (en) | 2002-12-05 |
PL376932A1 (en) | 2006-01-09 |
KR20050085402A (en) | 2005-08-29 |
BR0317061A (en) | 2005-10-25 |
FI115638B (en) | 2005-06-15 |
FI20022150A (en) | 2004-06-06 |
AR042301A1 (en) | 2005-06-15 |
JP2006509103A (en) | 2006-03-16 |
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Owner name: OUTOKUMPU OYJ, FINLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HANNIALA, PEKKA;KOJO, ILKKA;SAARINEN, RISTO;REEL/FRAME:016952/0908 Effective date: 20050427 |
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