US20170183748A1 - Method and device for processing iron silicate rock - Google Patents
Method and device for processing iron silicate rock Download PDFInfo
- Publication number
- US20170183748A1 US20170183748A1 US15/325,281 US201515325281A US2017183748A1 US 20170183748 A1 US20170183748 A1 US 20170183748A1 US 201515325281 A US201515325281 A US 201515325281A US 2017183748 A1 US2017183748 A1 US 2017183748A1
- Authority
- US
- United States
- Prior art keywords
- iron
- silicate rock
- iron silicate
- slag
- process according
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 34
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 239000011435 rock Substances 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 229910000805 Pig iron Inorganic materials 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002893 slag Substances 0.000 description 31
- 239000010949 copper Substances 0.000 description 21
- 229910052802 copper Inorganic materials 0.000 description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052840 fayalite Inorganic materials 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 1
- 229910052951 chalcopyrite Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/005—Preliminary treatment of scrap
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C21C5/567—Manufacture of steel by other methods operating in a continuous way
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
-
- 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
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/36—Processes yielding slags of special composition
-
- 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 process for treating iron silicate rock in which at least one constituent is at least partly removed from the iron silicate rock.
- the invention also relates to an apparatus for processing treated iron silicate rock.
- Iron silicate rock is at present virtually exclusively mechanically utilized.
- the iron silicate rock is formed as slag in the smelting of copper ores.
- the iron silicate rock is at present poured, for example, into molds and the moldings obtained are used for water frontage stabilization.
- Granulation of the iron silicate rock is likewise already known.
- Coarse granulated material is used, for example, as gravel for railroad embankments.
- Finer granulated material is used in sandblasting.
- iron silicate rock In terms of its proportions by weight, iron silicate rock consists essentially of iron, silicon and oxygen. Apart from the iron content, the iron silicate rock also contains secondary elements, for example copper, lead, arsenic, nickel and/or zinc.
- the residual copper contents in these processes are about 0.4-0.8% and both processes are not designed for the metallurgical removal of further impurities.
- the slag product formed (regardless of whether from a pyrometallurgical or hydrometallurgical process) has a problem: there is virtually no economical use and the available uses have little added value. The greatest part of the copper slag produced worldwide (about 15 million t/a) is therefore dumped.
- This object is achieved according to the invention by at least one constituent other than iron being at least partly removed and by the treated iron silicate rock being used for the production of steel or pig iron.
- a further object of the present invention is to construct an apparatus of the type mentioned at the outset in such a way that improved economics are achieved.
- the apparatus being configured as a facility for producing pig iron or steel.
- the metal content of copper slags has hitherto not been utilized (neither the nonferrous metals nor the iron content). At an amount of slag of 700 kt/a, this corresponds to an iron content of 280 kt/a.
- the slag is already liquid and comparatively little additional energy therefore has to be employed in order to carry out the process.
- the present invention is therefore based on the approach of removing the nonferrous metals from the slag product and using the remaining slag product (contains slag formers Si, Ca, Mg, Al and Fe as oxides) and raw material for producing pig iron or steel.
- This downstream process allows the preceding process steps more flexibility in the processing of the copper raw materials.
- the complexity of these raw materials in respect of their composition will increase further in future, due to the available copper ore deposits becoming poorer.
- processing smelters receive a reimbursement from the mines for the processing of concentrates having increased contents
- other important parameters are especially, for example, Zn and steel contaminants such as S and P.
- the copper yield is naturally critical.
- the newly developed process of the invention covers these challenges and pursues the objective of “zero-waste metallurgy”, i.e. all products formed in the production process are processed further.
- FIG. 1 a schematic flow diagram of the process
- FIG. 2 a table showing the specification of the starting material
- FIG. 3 a table showing the specification for the slag product from the process.
- FIG. 1 shows a schematic depiction for carrying out the individual process steps.
- the process sequence in the deep reduction of iron silicate rock to give a fayalite or magnetite product as raw material for use in the iron and steel industry is depicted.
- the slag from the primary copper process is preferably introduced in liquid form into the deep reduction process.
- the liquid slag preferably has a temperature in the range from 1200° C. to 1350° C. A temperature value of about 1260° C. is typical.
- the objective of the process is to separate the more noble metals of value present from the iron by selective reduction.
- the iron remains, bound to silicon and/or to oxygen as fayalite product (Fe 2 SiO 4 ) or magnetite product (Fe 3 O 4 ), for further use as starting material in the iron and steel industry.
- This product contains further oxides of Ca, Mg or Cr as impurities.
- the specification for the product is shown in the table in FIG. 3 .
- the residual sulfur present has to be removed from the system by introduction of oxygen in order for the subsequent reduction period to be able to be carried out efficiently.
- the melt bath is covered and protected from further contact with oxygen by addition of not more than 7% of solid carbon, based on the amount of slag.
- the CO/CO 2 ratio of the process atmosphere should be set so that an oxygen potential of 10 ⁇ 12 atm is not exceeded.
- the volatile constituents of the slag vaporize and leave the process together with the offgas. In the course of the offgas treatment, these constituents are obtained in the form of their oxides as fly dust.
- the fly dust obtained has a composition of about 40-60% of Zn, 10-20% of Pb and ⁇ 10% of As and can be used as raw material for zinc production, e.g. in the rolling process.
- an amount of fly dust of about 20 000 t is to be expected.
- the copper content after this process step is still about 0.2-0.3% of Cu.
- carbon monoxide is introduced as reducing agent via flushing bricks arranged at the bottom.
- the advantage of bottom flushing is the significantly lower gas velocity required compared to flushing by means of a lance. This leads to intensive mixing between slag, metal and gas phase. The reduction takes place at the gas/slag phase interface according to the reaction equation Cu 2 O+CO ⁇ 2Cu+CO 2 .
- the metal droplets formed are very fine (max. 20 ⁇ m) and have to be separated from the slag phase by density separation in a calming zone.
- the mineralogy of the slag product can be matched to the respective use. If the product is, for example, to be used directly in a blast furnace, the fayalite phase obtained is satisfactory. For introduction via the blast furnace charger, pretreatment in the sintering plant is necessary. The melting range of fayalite (about 1180°) is too low for this and would lead to problems in processing. It is therefore necessary to set the magnetite content in the finished product. This ratio can be adjusted according to the requirements of the customer by addition of a defined amount of oxygen. The oxygen can be added not only in the form of oxygen gas but also in the form of intermediates which serve as oxygen donors, e.g. Fe 2 O 3 dust from the steel industry.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Revetment (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014010442.7A DE102014010442A1 (de) | 2014-07-11 | 2014-07-11 | Verfahren und Vorrichtung zur Aufbereitung von Eisensilikatgestein |
| DE102014010442.7 | 2014-07-11 | ||
| PCT/DE2015/000314 WO2016004913A1 (fr) | 2014-07-11 | 2015-06-18 | Procédé et dispositif de traitement d'une roche de silicate de fer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20170183748A1 true US20170183748A1 (en) | 2017-06-29 |
Family
ID=53835842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/325,281 Abandoned US20170183748A1 (en) | 2014-07-11 | 2015-06-18 | Method and device for processing iron silicate rock |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US20170183748A1 (fr) |
| EP (1) | EP3167084A1 (fr) |
| JP (1) | JP2017528594A (fr) |
| KR (1) | KR20170047227A (fr) |
| CN (1) | CN107075606A (fr) |
| AU (1) | AU2015285988A1 (fr) |
| CA (1) | CA2954697A1 (fr) |
| CL (1) | CL2017000062A1 (fr) |
| DE (1) | DE102014010442A1 (fr) |
| EA (1) | EA201790172A1 (fr) |
| PE (1) | PE20170513A1 (fr) |
| PH (1) | PH12016502597A1 (fr) |
| WO (1) | WO2016004913A1 (fr) |
| ZA (1) | ZA201700109B (fr) |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB652814A (en) * | 1947-05-02 | 1951-05-02 | Petri Baldur Bryk | Process for the production of iron and iron alloys |
| US2986458A (en) * | 1958-09-05 | 1961-05-30 | Strategic Materials Corp | Production of iron from ferrous slag materials |
| US3032411A (en) * | 1959-02-24 | 1962-05-01 | Strategic Materials Corp | Metallurgical process |
| US3361557A (en) * | 1965-03-22 | 1968-01-02 | R N Corp | Processes for direct reduction of ironbearing ores, slags and the like |
| US4036636A (en) * | 1975-12-22 | 1977-07-19 | Kennecott Copper Corporation | Pyrometallurgical process for smelting nickel and nickel-copper concentrates including slag treatment |
| AT403294B (de) * | 1994-10-10 | 1997-12-29 | Holderbank Financ Glarus | Verfahren zum aufarbeiten von müll oder von metalloxidhaltigen müllverbrennungsrückständen sowie vorrichtung zur durchführung dieses verfahrens |
| AT405944B (de) * | 1996-04-19 | 1999-12-27 | Holderbank Financ Glarus | Verfahren zum reduzieren von oxidischen schlacken |
| AT406474B (de) * | 1998-03-17 | 2000-05-25 | Holderbank Financ Glarus | Verfahren zum umwandeln von schlacken aus der nicht-eisenmetallurgie |
| DE102006022779A1 (de) * | 2005-06-08 | 2006-12-21 | Sms Demag Ag | Verfahren und Vorrichtung zur Gewinnung eines Metalls aus einer das Metall enthaltenden Schlacke |
| AU2005338902B2 (en) * | 2005-12-09 | 2011-09-01 | Council Of Scientific And Industrial Research | A process for recovery of iron from copper slag |
| JP5180438B2 (ja) * | 2006-01-18 | 2013-04-10 | 新日鐵住金株式会社 | 炭材含有ペレットの製造方法 |
| EP2053137A1 (fr) * | 2007-10-19 | 2009-04-29 | Paul Wurth S.A. | Valorisation de résidus contenant du cuivre et d'autres métaux de valeur |
| JP5308711B2 (ja) * | 2008-05-16 | 2013-10-09 | 新日鐵住金株式会社 | 製鉄用焼結原料の造粒処理方法 |
| JP5326475B2 (ja) * | 2008-10-07 | 2013-10-30 | 新日鐵住金株式会社 | クロム含有スラグからのクロム回収方法 |
| JP5049311B2 (ja) * | 2009-03-31 | 2012-10-17 | パンパシフィック・カッパー株式会社 | 銅製錬における転炉スラグの乾式処理方法及びシステム |
| JP2012067375A (ja) * | 2010-09-27 | 2012-04-05 | Pan Pacific Copper Co Ltd | 銅製錬における転炉スラグの乾式処理方法及びシステム |
| JP2012012707A (ja) * | 2011-09-22 | 2012-01-19 | Pan Pacific Copper Co Ltd | 銅製錬における転炉スラグの乾式処理方法及びシステム |
| CN102851513A (zh) * | 2012-09-14 | 2013-01-02 | 金川集团股份有限公司 | 一种镍铜熔融渣中选择还原回收有价金属的方法 |
| CN102952952B (zh) * | 2012-09-26 | 2014-08-20 | 东北大学 | 一种从冶炼铜渣中直接还原回收铜铁的方法 |
| CN103060502B (zh) * | 2013-01-14 | 2014-03-26 | 白银龙家丰金属渣综合利用有限公司 | 利用铜废渣一次性还原炼硅酸铁工艺 |
-
2014
- 2014-07-11 DE DE102014010442.7A patent/DE102014010442A1/de not_active Withdrawn
-
2015
- 2015-06-18 EP EP15749967.4A patent/EP3167084A1/fr not_active Withdrawn
- 2015-06-18 KR KR1020177003683A patent/KR20170047227A/ko not_active Withdrawn
- 2015-06-18 AU AU2015285988A patent/AU2015285988A1/en not_active Abandoned
- 2015-06-18 EA EA201790172A patent/EA201790172A1/ru unknown
- 2015-06-18 CN CN201580037641.7A patent/CN107075606A/zh active Pending
- 2015-06-18 JP JP2017501384A patent/JP2017528594A/ja active Pending
- 2015-06-18 PE PE2017000039A patent/PE20170513A1/es unknown
- 2015-06-18 US US15/325,281 patent/US20170183748A1/en not_active Abandoned
- 2015-06-18 WO PCT/DE2015/000314 patent/WO2016004913A1/fr not_active Ceased
- 2015-06-18 CA CA2954697A patent/CA2954697A1/fr not_active Abandoned
-
2016
- 2016-12-23 PH PH12016502597A patent/PH12016502597A1/en unknown
-
2017
- 2017-01-05 ZA ZA2017/00109A patent/ZA201700109B/en unknown
- 2017-01-10 CL CL2017000062A patent/CL2017000062A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CL2017000062A1 (es) | 2017-08-11 |
| EP3167084A1 (fr) | 2017-05-17 |
| PH12016502597A1 (en) | 2017-04-24 |
| WO2016004913A1 (fr) | 2016-01-14 |
| AU2015285988A1 (en) | 2017-02-02 |
| EA201790172A1 (ru) | 2017-05-31 |
| ZA201700109B (en) | 2018-04-25 |
| WO2016004913A8 (fr) | 2018-02-15 |
| JP2017528594A (ja) | 2017-09-28 |
| DE102014010442A1 (de) | 2016-01-14 |
| CN107075606A (zh) | 2017-08-18 |
| CA2954697A1 (fr) | 2016-01-14 |
| PE20170513A1 (es) | 2017-05-06 |
| KR20170047227A (ko) | 2017-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bellemans et al. | Metal losses in pyrometallurgical operations-A review | |
| Montenegro et al. | Recirculation of high arsenic content copper smelting dust to smelting and converting processes | |
| US10174403B2 (en) | Methods and apparatus for metal recovery from slag | |
| Yusupkhodjayev et al. | Methods of decreasing of Copper loss with Slag in Smelting Processes | |
| Jones | An overview of Southern African PGM smelting | |
| JP5873600B2 (ja) | 非鉄金属冶金スラグの処理方法 | |
| FI69871C (fi) | Foerfarande och anordning foer behandling av sulfidkoncentrat eller -malmer till raometaller | |
| US20250084503A1 (en) | Treatment of zinc leach residue | |
| US20070283785A1 (en) | Process for recovery of iron from copper slag | |
| JPS6056219B2 (ja) | 鉛−銅−硫黄装入物の処理法 | |
| Matinde et al. | Metallurgical overview and production of slags | |
| Dosmukhamedov et al. | Investigation of Cu, Pb, Zn, As, Sb distribution during the lead semiproducts and copper-zinc concentrate comelting | |
| WO2015173472A1 (fr) | Procédé de conversion de matière contenant du cuivre | |
| US20170183748A1 (en) | Method and device for processing iron silicate rock | |
| WO2018015611A1 (fr) | Procédé de raffinage de concentré de cuivre sulfuré | |
| US3032411A (en) | Metallurgical process | |
| Li et al. | Research on comprehensive recovery and harmless treatment process of copper smelting slag | |
| WO2020149777A1 (fr) | Traitement d'un matériau à base de fer ferrique comprenant du zinc et du soufre | |
| Hara et al. | Carbothermic processing of copper–cobalt mineral sulphide concentrates and slag waste for the extraction of metallic values | |
| Malan et al. | The recovery of platinum group metals from low-grade concentrates to an iron alloy using silicon carbide as reductant | |
| Bakker et al. | ISACONVERT™—Continuous converting of nickel/PGM matte with calcium ferrite slag | |
| Van Dyk | An overview of the Zincor process | |
| Sharma | Industrial Aspects of Inorganic Chemistry | |
| Mukono | The effect of acid soluble copper concentrates on the operations of the flash smelting and slag cleaning furnaces at Nchanga smelter of Konkola copper mines plc | |
| Lennartsson et al. | Minor elements in copper converting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: AURUBIS AG, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHMIDL, JUERGEN;KLAFFENBACH, ERIC;SIGNING DATES FROM 20161212 TO 20161216;REEL/FRAME:040935/0762 |
|
| STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |