NO20065589L - Sprekkmotstandsdyktige elektroder for en karbotermisk reduksjonsovn. - Google Patents

Sprekkmotstandsdyktige elektroder for en karbotermisk reduksjonsovn.

Info

Publication number
NO20065589L
NO20065589L NO20065589A NO20065589A NO20065589L NO 20065589 L NO20065589 L NO 20065589L NO 20065589 A NO20065589 A NO 20065589A NO 20065589 A NO20065589 A NO 20065589A NO 20065589 L NO20065589 L NO 20065589L
Authority
NO
Norway
Prior art keywords
electrodes
carbothermal reduction
crack
reduction furnace
temperature room
Prior art date
Application number
NO20065589A
Other languages
English (en)
Inventor
Johann Daimer
Original Assignee
Sgl Carbon 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
Application filed by Sgl Carbon Ag filed Critical Sgl Carbon Ag
Publication of NO20065589L publication Critical patent/NO20065589L/no

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/06—Electrodes
    • H05B7/08—Electrodes non-consumable
    • H05B7/085—Electrodes non-consumable mainly consisting of carbon
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/02—Obtaining aluminium with reducing
    • 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
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/08—Apparatus
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Ceramic Products (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Discharge Heating (AREA)

Abstract

Grafittelektroder for fremstilling av aluminium ved karbotermisk reduksjon av alumina blir enten neddykket i smeltebadet i lavtemperaturrommet eller de blir anordnet horisontalt i sideveggene til høytemperaturrommet. Elektrodene fremstilles med en blanding av kokspartikler som dekker hele partikkelstørrelsesområdet mellom 25 nm og 3 mm, idet det benyttes en intensiv mikser for effektiv fiikting av samtlige kokspartikler med bek. Elektrodene har en bøyestyrke på minst 20 N/mm^. Ved å bruke et fiillstendig område (kontinuum) av partikkelstørrelser og en intensiv mikser, bedres partiklenes geometriske pakking vesentlig. Derved øker materialtettheten og det oppnås således en høyere mekanisk styrke så vel som en bedret elektrisk ledningsevne, sammenlignet med konvensjonelle grafittelektroder.
NO20065589A 2004-05-17 2006-12-05 Sprekkmotstandsdyktige elektroder for en karbotermisk reduksjonsovn. NO20065589L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57175504P 2004-05-17 2004-05-17
PCT/EP2005/005245 WO2005112511A1 (en) 2004-05-17 2005-05-13 Fracture resistant electrodes for a carbothermic reduction furnace

Publications (1)

Publication Number Publication Date
NO20065589L true NO20065589L (no) 2006-12-05

Family

ID=34970804

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20065589A NO20065589L (no) 2004-05-17 2006-12-05 Sprekkmotstandsdyktige elektroder for en karbotermisk reduksjonsovn.

Country Status (7)

Country Link
US (2) US20050253118A1 (no)
EP (1) EP1752021B1 (no)
JP (1) JP5101277B2 (no)
CN (1) CN1957643B (no)
NO (1) NO20065589L (no)
RU (1) RU2365646C2 (no)
WO (1) WO2005112511A1 (no)

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US9777221B2 (en) * 2006-06-29 2017-10-03 Graftech International Holdings Inc. Method of producing needle coke for low CTE graphite electrodes
CN101639500B (zh) * 2009-05-15 2011-01-26 西安超码科技有限公司 一种间接加热式测试炭/炭发热体高温电阻的方法
CN101639501B (zh) * 2009-05-15 2011-02-02 西安超码科技有限公司 一种直接加热式测试炭/炭发热体高温电阻的方法
DE102010038669A1 (de) * 2010-07-29 2012-02-02 Sgl Carbon Se Kathodenblock für eine Aluminium-Elektrolysezelle und ein Verfahren zu seiner Herstellung
WO2013008054A1 (en) * 2011-07-14 2013-01-17 Telefonaktiebolaget L M Ericsson (Publ) Optimization engine in a mobile cloud accelerator and related methods
CN102355759B (zh) * 2011-07-22 2013-02-20 河北联冠电极股份有限公司 铁合金冶炼专用炭电极及其制备方法
CN102427614A (zh) * 2011-09-06 2012-04-25 卢显东 一种电热水袋电极及其制造方法
CN104276631B (zh) * 2013-07-03 2016-06-22 济南大学 一种氧化铁皮基粒子电极及其制备方法
US10263861B2 (en) * 2014-11-07 2019-04-16 Cisco Technology, Inc. Multi-path aware tracing and probing functionality at service topology layer
CN106376121B (zh) * 2016-08-26 2020-03-17 河北顺天电极有限公司 一种高石墨质炭电极及其制备方法
CN108585861A (zh) * 2018-03-22 2018-09-28 合肥炭素有限责任公司 一种电极接头及其制备方法
CN109860575A (zh) * 2019-03-06 2019-06-07 太原理工大学 一种煤基石墨微晶导电复合物及其制备方法和应用
CN112876249B (zh) * 2021-01-13 2022-07-08 山西沁新能源集团股份有限公司 制备预焙阳极的方法、预焙阳极及其应用
CN118084493A (zh) * 2024-04-25 2024-05-28 山西三元炭素有限责任公司 一种矿热炉石墨焦电极及制备工艺

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US2974032A (en) * 1960-02-24 1961-03-07 Pechiney Reduction of alumina
GB974019A (en) * 1962-01-24 1964-11-04 Exxon Research Engineering Co Electrodes containing petroleum coke
GB1140428A (en) * 1965-12-08 1969-01-22 United Coke & Chemicals Compan Production of graphite bodies
US3607221A (en) * 1969-02-17 1971-09-21 Reynolds Metals Co Carbothermic production of aluminum
JPS5143398B2 (no) * 1972-06-10 1976-11-20
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JPS59121107A (ja) * 1982-12-27 1984-07-13 Ibiden Co Ltd 炭素電極棒の製造方法
US4486229A (en) * 1983-03-07 1984-12-04 Aluminum Company Of America Carbothermic reduction with parallel heat sources
US4491472A (en) * 1983-03-07 1985-01-01 Aluminum Company Of America Carbothermic reduction and prereduced charge for producing aluminum-silicon alloys
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FR2740771B1 (fr) * 1995-11-02 1997-12-05 Pechiney Aluminium Bloc carbone a haute resistance au choc thermique
JP3602737B2 (ja) * 1998-12-14 2004-12-15 正次 外川 粉末成形金型
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Also Published As

Publication number Publication date
JP5101277B2 (ja) 2012-12-19
EP1752021B1 (en) 2012-07-04
JP2007538149A (ja) 2007-12-27
RU2365646C2 (ru) 2009-08-27
CN1957643B (zh) 2010-10-20
WO2005112511A1 (en) 2005-11-24
CN1957643A (zh) 2007-05-02
US20050253118A1 (en) 2005-11-17
US7736413B2 (en) 2010-06-15
RU2006144871A (ru) 2008-06-27
US20090007723A1 (en) 2009-01-08
EP1752021A1 (en) 2007-02-14

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