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WO2016004913A1 - Procédé et dispositif de traitement d'une roche de silicate de fer - Google Patents

Procédé et dispositif de traitement d'une roche de silicate de fer Download PDF

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Publication number
WO2016004913A1
WO2016004913A1 PCT/DE2015/000314 DE2015000314W WO2016004913A1 WO 2016004913 A1 WO2016004913 A1 WO 2016004913A1 DE 2015000314 W DE2015000314 W DE 2015000314W WO 2016004913 A1 WO2016004913 A1 WO 2016004913A1
Authority
WO
WIPO (PCT)
Prior art keywords
iron
iron silicate
silicate rock
slag
treatment
Prior art date
Application number
PCT/DE2015/000314
Other languages
German (de)
English (en)
Other versions
WO2016004913A8 (fr
Inventor
Jürgen SCHMIDL
Jürgen KLAFFENBACH
Original Assignee
Aurubis Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to AU2015285988A priority Critical patent/AU2015285988A1/en
Priority to KR1020177003683A priority patent/KR20170047227A/ko
Priority to CN201580037641.7A priority patent/CN107075606A/zh
Priority to CA2954697A priority patent/CA2954697A1/fr
Priority to JP2017501384A priority patent/JP2017528594A/ja
Priority to EA201790172A priority patent/EA201790172A1/ru
Application filed by Aurubis Ag filed Critical Aurubis Ag
Priority to EP15749967.4A priority patent/EP3167084A1/fr
Priority to US15/325,281 priority patent/US20170183748A1/en
Publication of WO2016004913A1 publication Critical patent/WO2016004913A1/fr
Priority to PH12016502597A priority patent/PH12016502597A1/en
Priority to ZA2017/00109A priority patent/ZA201700109B/en
Publication of WO2016004913A8 publication Critical patent/WO2016004913A8/fr

Links

Classifications

    • 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
    • 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
    • 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 the treatment of iron silicate rock, in which at least one component is at least partially removed from the iron silicate rock.
  • the invention also relates to a device for processing processed iron silicate rock.
  • the iron silicate rock is currently being used almost exclusively mechanically.
  • the iron silicate stone is produced as slag during the smelting of copper ores.
  • iron silicate rock is currently being poured into molds, for example, and the resulting moldings are used for bank attachment. Also is already a granulation of iron silicate stone known. Coarse granules are used for example as gravel for railway embankments. Finer granules are used in sandblasting.
  • Iron silicate stone consists essentially of its weight fractions of iron, silicon and oxygen. In addition to the iron content, the iron silicate rock also contains minor elements, for example copper, lead, arsenic, nickel and / or zinc.
  • the smelting of copper ores (mainly chalcopyrite) produces large amounts of slag. Based on the amount of valuable metal-containing feed material, 600 kg slag / t ore concentrate in the copper industry generates about three times the amount of slag compared to the iron and steel industry.
  • Slag cleaning is already in operation worldwide with the main goal of increasing / maximizing copper output.
  • Hydrometallurgical slag flotation After solidification of the slag, a grinding process and then the flotation of sulfidic copper particles. The result is a concentrate that can be returned to the primary process.
  • the object of the present invention is to improve a method of the aforementioned type such that an improved economy is provided.
  • This object is achieved in that at least one component other than iron is at least partially removed and that the processed iron silicate rock is used for the production of steel pig iron.
  • Another object of the present invention is to construct a device of the initially mentioned type such that an improved economy is achieved.
  • the device is designed as a device for the production of pig iron or steel.
  • the metal content of copper slags has not been used (neither the non-ferrous metals nor the iron content). With a slag amount of 700kt / a, this corresponds to an iron content of 280kt / a.
  • the slag is already liquid and therefore only relatively little energy has to be expended to carry out the process. Therefore, the present invention is based on the approach to remove the non-ferrous metals from the slag product and to use the remaining slag product (containing slag formers Si, Ca, Mg, Al and Fe as oxides) as raw material for the production of pig iron or steel.
  • This downstream process allows the upstream process steps more flexibility in the processing of copper raw materials.
  • the complexity of these raw materials in terms of their composition will continue to increase in the future, which is due to the fact that the existing copper ore deposits are poorer.
  • impurities processing huts
  • Zn and steel pests such as S and P are important parameters in terms of the steel industry.
  • the copper application is crucial.
  • the newly developed process according to the invention covers these requirements and pursues the goal of the so-called "zero-waste metallurgy", ie all products resulting from the production process are further processed.
  • Circulation products from the copper and steel industries eg, desserts, smoothing, fly ash, food, metal phases
  • slags Process temperature e.g., desserts, smoothing, fly ash, food, metal phases
  • ⁇ E-oven rectangular, treatment zone, rest zone, tapping executed as overflow, inlet via gutter system, gas input through soil rinsing
  • FIG. 1 a schematic representation of the process flow
  • FIG. 2 a table for the specification of the starting material
  • Fig. 3 A table for the specification of the slag product from the process.
  • Fig. 1 shows a schematic representation for carrying out the individual process steps.
  • the process sequence in the deep reduction of iron silicate rock to a fayalite or magnetite product is shown as a raw material for use in the iron and steel industry.
  • the slag from the primary copper process is preferably charged liquid in the Tiefred uktionsrea.
  • the liquid slag preferably has a temperature in the range of 1200 ° C to 1350 ° C. Typical is a temperature value of about 1260 ° C.
  • the aim of the process is to separate the precious metals contained in it by selective reduction of the iron.
  • the iron remains bound to silicon and / or oxygen as a fayalite product (Fe 2 SiO 4 ) or magnetite product (Fe 3 O 4 ) for further use as a feedstock in the iron and steel industry.
  • This product contains other oxides of Ca, Mg or Cr as impurities.
  • the specification for the product can be found in the table according to FIG. 3.
  • the entry of oxygen must remove the residual sulfur present from the system so that the subsequent reduction period can be carried out efficiently.
  • max. 7% solid carbon based on the amount of slag is covered in the molten bath and protected against further oxygen access.
  • the CO / CO2 ratio of the process atmosphere must be adjusted so that it does not exceed an oxygen potential of 10 "12 atm.
  • the obtained fly ash has a composition of about 40-60% Zn, 10-20% Pb and ⁇ 10% As and can be used as a raw material for the zinc production eg in the so-called rolling process.From the example considered here An annual tonnage of 700,000 1 is to be expected with a flow rate of about 20,000 tonnes.
  • the copper content after this process step is still about 0.2-0.3% Cu.
  • carbon monoxide is introduced as a reducing agent via rinsing stones arranged on the bottom.
  • the advantage of soil flushing lies in the much lower required gas velocity compared to a lancet purging.
  • the mineralogy of the slag product can be adapted for the respective application. If the product is to be used, for example, directly in the blast furnace, the fayalite phase obtained is sufficient. For use above the blast furnace, the pre-treatment in the sinter plant is necessary. The melting range of fayalite (about 1180 °) is too low for this and would lead to problems in processing. Therefore, the adjustment of the manganese content in the finished product is necessary. By adding a defined amount of oxygen, this ratio can be adjusted according to the customer's requirements. The oxygen can be added not only in From oxygen gas, but also in the form of intermediates serving as oxygen donors, such. B. Fe2O3 dust from the steel industry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Revetment (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé de traitement d'une roche de silicate de fer. Au moins un composant est éliminé au moins en partie de la roche de silicate de fer. Au moins un composant différent du fer est éliminé de la roche de silicate de fer. La roche de silicate de fer traitée est utilisée pour la production de fonte brute ou d'acier. Le dispositif de valorisation de la roche de silicate traitée est réalisé sous la forme d'un appareil de production de fonte brute ou d'acier.
PCT/DE2015/000314 2014-07-11 2015-06-18 Procédé et dispositif de traitement d'une roche de silicate de fer WO2016004913A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
KR1020177003683A KR20170047227A (ko) 2014-07-11 2015-06-18 규산철암 가공 방법 및 장치
CN201580037641.7A CN107075606A (zh) 2014-07-11 2015-06-18 用于加工硅酸铁岩石的方法和装置
CA2954697A CA2954697A1 (fr) 2014-07-11 2015-06-18 Procede et dispositif de traitement d'une roche de silicate de fer
JP2017501384A JP2017528594A (ja) 2014-07-11 2015-06-18 ケイ酸鉄を処理するための方法および装置
EA201790172A EA201790172A1 (ru) 2014-07-11 2015-06-18 Способ и устройство для обработки железосиликатного сырья
AU2015285988A AU2015285988A1 (en) 2014-07-11 2015-06-18 Method and device for processing iron silicate rock
EP15749967.4A EP3167084A1 (fr) 2014-07-11 2015-06-18 Procédé et dispositif de traitement d'une roche de silicate de fer
US15/325,281 US20170183748A1 (en) 2014-07-11 2015-06-18 Method and device for processing iron silicate rock
PH12016502597A PH12016502597A1 (en) 2014-07-11 2016-12-23 Method and device for processing iron silicate rock
ZA2017/00109A ZA201700109B (en) 2014-07-11 2017-01-05 Method and device for processing iron silicate rock

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014010442.7 2014-07-11
DE102014010442.7A DE102014010442A1 (de) 2014-07-11 2014-07-11 Verfahren und Vorrichtung zur Aufbereitung von Eisensilikatgestein

Publications (2)

Publication Number Publication Date
WO2016004913A1 true WO2016004913A1 (fr) 2016-01-14
WO2016004913A8 WO2016004913A8 (fr) 2018-02-15

Family

ID=53835842

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/000314 WO2016004913A1 (fr) 2014-07-11 2015-06-18 Procédé et dispositif de traitement d'une roche de silicate de fer

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)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986458A (en) * 1958-09-05 1961-05-30 Strategic Materials Corp Production of iron from ferrous slag materials
WO2006131372A1 (fr) * 2005-06-08 2006-12-14 Sms Demag Ag Procede et dispositif pour extraire un metal d'un laitier contenant ce metal
WO2007066350A1 (fr) * 2005-12-09 2007-06-14 Council Of Scientific And Industrial Research Processus de récupération de fer à partir de laitier de cuivre

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GB652814A (en) * 1947-05-02 1951-05-02 Petri Baldur Bryk Process for the production of iron and iron alloys
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
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
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2986458A (en) * 1958-09-05 1961-05-30 Strategic Materials Corp Production of iron from ferrous slag materials
WO2006131372A1 (fr) * 2005-06-08 2006-12-14 Sms Demag Ag Procede et dispositif pour extraire un metal d'un laitier contenant ce metal
WO2007066350A1 (fr) * 2005-12-09 2007-06-14 Council Of Scientific And Industrial Research Processus de récupération de fer à partir de laitier de cuivre

Non-Patent Citations (2)

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Title
DEMETRIO SERGIO ET AL: "Slag cleaning: the Chilean copper smelter experience", JOM, SPRINGER NEW YORK LLC, UNITED STATES, vol. 52, no. 8, 1 August 2000 (2000-08-01), pages 20 - 25, XP008177797, ISSN: 1047-4838, DOI: 10.1007/S11837-000-0168-Z *
ROLAND KONIG ET AL: "Highly efficient slag cleaning - Latest results from pilot-scale tests", REWAS 2013: ENABLING MATERIALS RESOURCE SUSTAINABILITY - TMS 2013 ANNUAL MEETING AND EXHIBITION; 20130303 TO 20130307; SAN ANTONIO, TX, USA, 1 January 2013 (2013-01-01) - 7 March 2013 (2013-03-07), pages 2 - 12, XP055219773, ISBN: 978-1-118-60587-5, DOI: 10.1002/9781118679401.ch1 *

Also Published As

Publication number Publication date
KR20170047227A (ko) 2017-05-04
US20170183748A1 (en) 2017-06-29
DE102014010442A1 (de) 2016-01-14
JP2017528594A (ja) 2017-09-28
PE20170513A1 (es) 2017-05-06
EA201790172A1 (ru) 2017-05-31
CN107075606A (zh) 2017-08-18
CL2017000062A1 (es) 2017-08-11
ZA201700109B (en) 2018-04-25
CA2954697A1 (fr) 2016-01-14
AU2015285988A1 (en) 2017-02-02
EP3167084A1 (fr) 2017-05-17
PH12016502597A1 (en) 2017-04-24
WO2016004913A8 (fr) 2018-02-15

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