WO2004050925A1 - Method for treating slag - Google Patents
Method for treating slag Download PDFInfo
- Publication number
- WO2004050925A1 WO2004050925A1 PCT/FI2003/000898 FI0300898W WO2004050925A1 WO 2004050925 A1 WO2004050925 A1 WO 2004050925A1 FI 0300898 W FI0300898 W FI 0300898W WO 2004050925 A1 WO2004050925 A1 WO 2004050925A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- copper
- slag
- leaching
- blister
- created
- Prior art date
Links
- 239000002893 slag Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000010949 copper Substances 0.000 claims abstract description 46
- 229910052802 copper Inorganic materials 0.000 claims abstract description 42
- 238000003723 Smelting Methods 0.000 claims abstract description 19
- 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 10
- 238000002386 leaching Methods 0.000 claims description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 9
- 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
- 238000000622 liquid--liquid extraction Methods 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 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
- 238000000227 grinding Methods 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
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.
- Figure 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.
- 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 S0 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.
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Extraction Or Liquid Replacement (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MXPA05005997A MXPA05005997A (es) | 2002-12-05 | 2003-11-24 | Metodo para el tratamiento de escoria. |
| US10/536,631 US20060037435A1 (en) | 2002-12-05 | 2003-11-24 | Method for treating slag |
| BR0317061A BR0317061A (pt) | 2002-12-05 | 2003-11-24 | Método para tratamento de escória |
| AU2003283455A AU2003283455A1 (en) | 2002-12-05 | 2003-11-24 | Method for treating slag |
| EA200500756A EA200500756A1 (ru) | 2002-12-05 | 2003-11-24 | Способ обработки шлака |
| JP2004556365A JP2006509103A (ja) | 2002-12-05 | 2003-11-24 | スラグの処理方法 |
| EP20030775423 EP1579017A1 (en) | 2002-12-05 | 2003-11-24 | Method for treating slag |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20022150A FI115638B (sv) | 2002-12-05 | 2002-12-05 | Förfarande för att behandla slagg |
| FI20022150 | 2002-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004050925A1 true WO2004050925A1 (en) | 2004-06-17 |
Family
ID=8565039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FI2003/000898 WO2004050925A1 (en) | 2002-12-05 | 2003-11-24 | Method for treating slag |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US20060037435A1 (sv) |
| EP (1) | EP1579017A1 (sv) |
| JP (1) | JP2006509103A (sv) |
| KR (1) | KR20050085402A (sv) |
| CN (1) | CN1720342A (sv) |
| AR (1) | AR042301A1 (sv) |
| AU (1) | AU2003283455A1 (sv) |
| BR (1) | BR0317061A (sv) |
| EA (1) | EA200500756A1 (sv) |
| FI (1) | FI115638B (sv) |
| MX (1) | MXPA05005997A (sv) |
| PE (1) | PE20040630A1 (sv) |
| PL (1) | PL376932A1 (sv) |
| WO (1) | WO2004050925A1 (sv) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005007905A1 (en) * | 2003-07-17 | 2005-01-27 | Outokumpu Technology Oy | Method for smelting copper concentrates |
| CN116555571A (zh) * | 2023-04-27 | 2023-08-08 | 上海开鸿环保科技有限公司 | 危废污泥电热熔融资源化处理装置 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2053137A1 (fr) * | 2007-10-19 | 2009-04-29 | Paul Wurth S.A. | Valorisation de résidus contenant du cuivre et d'autres métaux de valeur |
| FI120157B (sv) * | 2007-12-17 | 2009-07-15 | Outotec Oyj | Förfarande för förädling av kopparslig |
| CN102605191B (zh) | 2012-04-16 | 2013-12-25 | 阳谷祥光铜业有限公司 | 一种铜精矿直接生产粗铜的方法 |
| KR101389430B1 (ko) * | 2012-08-23 | 2014-04-25 | 엘에스니꼬동제련 주식회사 | 동제련 전로슬래그에서의 유가금속 회수처리 공정법 |
| KR101502592B1 (ko) * | 2013-04-12 | 2015-03-16 | 주식회사 삼삼 | 실리카 및 마그네시아 추출을 위한 슬래그의 처리방법 |
| JP6363035B2 (ja) * | 2015-02-27 | 2018-07-25 | 独立行政法人国立高等専門学校機構 | 銅スラグの処理方法 |
| RU2614293C2 (ru) * | 2015-06-04 | 2017-03-24 | Общество с ограниченной ответственностью "Институт Гипроникель" | Способ переработки низкоавтогенного сырья в печах взвешенной плавки |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632308A (en) * | 1969-12-05 | 1972-01-04 | Universal Oil Prod Co | Recovery of copper values from slag |
| DE2348005A1 (de) * | 1972-09-25 | 1974-07-25 | Albright & Wilson | Verfahren zur gewinnung von kupfer und/oder zink aus abfaellen |
| US4484730A (en) * | 1982-09-30 | 1984-11-27 | Iso "Metalurgkomplekt" | Device for leaching copper from slags |
| WO2001049890A1 (en) * | 1998-12-30 | 2001-07-12 | Outokumpu Oyj | Method for the production of blister copper in suspension reactor |
| CA2363969A1 (en) * | 2001-11-26 | 2003-05-26 | Walter Curlook | Process for the recovery of residual metal values from smelter waste slags, and from converter slags |
Family Cites Families (8)
| 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 |
| 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 |
| NO156724C (no) * | 1983-07-08 | 1987-11-11 | Elkem As | Fremgangsmaate ved utvinning av kobberinnholdet i sulfidiske malmer og konsentrater. |
| US5616168A (en) * | 1994-02-28 | 1997-04-01 | Kennecott Utah Copper Corporation | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
| FI114808B (sv) * | 2002-05-03 | 2004-12-31 | Outokumpu Oy | Förfarande för förädling av ädelmetallsslig |
-
2002
- 2002-12-05 FI FI20022150A patent/FI115638B/sv not_active IP Right Cessation
-
2003
- 2003-11-24 MX MXPA05005997A patent/MXPA05005997A/es unknown
- 2003-11-24 PL PL37693203A patent/PL376932A1/pl not_active Application Discontinuation
- 2003-11-24 AU AU2003283455A patent/AU2003283455A1/en not_active Abandoned
- 2003-11-24 EA EA200500756A patent/EA200500756A1/ru unknown
- 2003-11-24 BR BR0317061A patent/BR0317061A/pt not_active IP Right Cessation
- 2003-11-24 JP JP2004556365A patent/JP2006509103A/ja not_active Abandoned
- 2003-11-24 KR KR1020057010244A patent/KR20050085402A/ko not_active Application Discontinuation
- 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 EP EP20030775423 patent/EP1579017A1/en not_active Withdrawn
- 2003-11-24 CN CNA2003801049585A patent/CN1720342A/zh active Pending
- 2003-12-02 PE PE2003001224A patent/PE20040630A1/es not_active Application Discontinuation
- 2003-12-04 AR ARP030104479 patent/AR042301A1/es not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632308A (en) * | 1969-12-05 | 1972-01-04 | Universal Oil Prod Co | Recovery of copper values from slag |
| DE2348005A1 (de) * | 1972-09-25 | 1974-07-25 | Albright & Wilson | Verfahren zur gewinnung von kupfer und/oder zink aus abfaellen |
| US4484730A (en) * | 1982-09-30 | 1984-11-27 | Iso "Metalurgkomplekt" | Device for leaching copper from slags |
| WO2001049890A1 (en) * | 1998-12-30 | 2001-07-12 | Outokumpu Oyj | Method for the production of blister copper in suspension reactor |
| CA2363969A1 (en) * | 2001-11-26 | 2003-05-26 | Walter Curlook | Process for the recovery of residual metal values from smelter waste slags, and from converter slags |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005007905A1 (en) * | 2003-07-17 | 2005-01-27 | Outokumpu Technology Oy | Method for smelting copper concentrates |
| US7494528B2 (en) | 2003-07-17 | 2009-02-24 | Outotec Oyj | Method for smelting copper concentrates |
| CN116555571A (zh) * | 2023-04-27 | 2023-08-08 | 上海开鸿环保科技有限公司 | 危废污泥电热熔融资源化处理装置 |
| CN116555571B (zh) * | 2023-04-27 | 2024-05-10 | 上海开鸿环保科技有限公司 | 危废污泥电热熔融资源化处理装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1720342A (zh) | 2006-01-11 |
| AR042301A1 (es) | 2005-06-15 |
| PL376932A1 (pl) | 2006-01-09 |
| JP2006509103A (ja) | 2006-03-16 |
| FI20022150A (sv) | 2004-06-06 |
| EA200500756A1 (ru) | 2005-12-29 |
| AU2003283455A1 (en) | 2004-06-23 |
| PE20040630A1 (es) | 2004-11-11 |
| BR0317061A (pt) | 2005-10-25 |
| KR20050085402A (ko) | 2005-08-29 |
| MXPA05005997A (es) | 2005-08-18 |
| EP1579017A1 (en) | 2005-09-28 |
| FI115638B (sv) | 2005-06-15 |
| US20060037435A1 (en) | 2006-02-23 |
| FI20022150A0 (sv) | 2002-12-05 |
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