NO20065591L - Gassugjennomtrengelige elektroder for karbotermisk reduksjonsovn. - Google Patents

Gassugjennomtrengelige elektroder for karbotermisk reduksjonsovn.

Info

Publication number
NO20065591L
NO20065591L NO20065591A NO20065591A NO20065591L NO 20065591 L NO20065591 L NO 20065591L NO 20065591 A NO20065591 A NO 20065591A NO 20065591 A NO20065591 A NO 20065591A NO 20065591 L NO20065591 L NO 20065591L
Authority
NO
Norway
Prior art keywords
electrode
coating
furnace
graphite
reduction furnace
Prior art date
Application number
NO20065591A
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 NO20065591L publication Critical patent/NO20065591L/no

Links

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
    • 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
    • C22B4/02—Light metals
    • 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
    • H05B7/07—Electrodes designed to melt in use

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)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Discharge Heating (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

En grafittelektrode for en elektrotermisk reduksjonsovn hvor aluminium produseres med karbotermisk reduksjon av alumina, gjøres i hovedsaken gassugjennomtrengelig. Grafittelektroden konsumeres under driften av ovnen, og elektrodesøyler forbundne med grafittapper blir kontinuerlig matet inn i ovnen ovenfra. Belegget på elektroden tåler en temperatur på opptil 300°C og mer over en periode på flere timer uten oksidering. Fordi belegget i det minste delvis går inn i ovnsrommet, er det utformet slik at det ikke vil kontaminere den varme smeiten. Det vil si at kjemien til beleggmaterialene er lik ingrediensene i reaksjonen eller at i det minste mengden av fremmedelementer er meget lav. Belegget tilveiebringes slik at det ikke vil øke den elektriske kontaktmotstanden i forbindelsen mellom elektrodesøylene og elektrodeholdeklemmene. Når elektrodeinnløpsarealet er vannkjølt, er belegget ikke-løselig i vann.
NO20065591A 2004-05-14 2006-12-05 Gassugjennomtrengelige elektroder for karbotermisk reduksjonsovn. NO20065591L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57105804P 2004-05-14 2004-05-14
PCT/EP2005/005222 WO2005113844A1 (en) 2004-05-14 2005-05-13 Gas impervious electrodes for carbothermic reduction furnace

Publications (1)

Publication Number Publication Date
NO20065591L true NO20065591L (no) 2006-12-05

Family

ID=34968334

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20065591A NO20065591L (no) 2004-05-14 2006-12-05 Gassugjennomtrengelige elektroder for karbotermisk reduksjonsovn.

Country Status (7)

Country Link
US (2) US20050254544A1 (no)
EP (1) EP1749111A1 (no)
JP (1) JP2007537567A (no)
CN (1) CN100482817C (no)
NO (1) NO20065591L (no)
RU (1) RU2365645C2 (no)
WO (1) WO2005113844A1 (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101525768B (zh) * 2008-03-05 2011-05-25 绿能科技股份有限公司 长晶炉的加热电极与固定结构
CN114023561B (zh) * 2021-10-29 2022-12-09 华中科技大学 一种非本征二维复合磁性材料、制备方法及应用
CN115572172B (zh) * 2022-09-09 2023-06-30 攀钢集团攀枝花钢铁研究院有限公司 废旧石墨电极的利用方法及电炉
CN116835595B (zh) * 2023-07-27 2026-01-30 石嘴山市新宇兰山电碳有限公司 玻璃碳石墨电极的制备方法
CN118268312B (zh) * 2024-06-03 2024-08-16 嘉祥洪润电碳有限公司 一种用于石墨表面碳化硅涂层清洁装置

Family Cites Families (28)

* Cited by examiner, † Cited by third party
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US2974032A (en) * 1960-02-24 1961-03-07 Pechiney Reduction of alumina
US3140193A (en) * 1960-04-06 1964-07-07 James S Kane Process for producing oxidation resistant refractory coating on dense graphite
GB1026055A (en) * 1962-10-02 1966-04-14 Metalurgitchen Zd Lenin Coating of carbon
FR1434642A (fr) * 1965-03-29 1966-04-08 Metalurgitchen Zd Lenin Procédé et appareil pour la réalisation d'enduits protecteurs sur des produits en carbone, notamment des électrodes en graphite ainsi que les produits pourvus d'une couche protectrice conforme à celle ainsi obtenue
US3553010A (en) * 1967-07-26 1971-01-05 Sigri Elektrographit Gmbh Carbon or graphite formed body
US3619286A (en) * 1968-12-18 1971-11-09 Budd Co Cast graphite electrodes for edm applications
US3607221A (en) * 1969-02-17 1971-09-21 Reynolds Metals Co Carbothermic production of aluminum
SU401024A1 (ru) * 1971-02-22 1973-10-01 В. Н.Жачкин, Г. С. Долженков , В. В. Булатов Всесоюзный научно исследовательский , проектный институт титана Способ защиты электродов от окисления
US3929456A (en) * 1972-05-05 1975-12-30 Reynolds Metals Co Carbothermic production of aluminum
JPS4996035A (no) * 1972-12-03 1974-09-11
GB1590431A (en) * 1976-05-28 1981-06-03 Alcan Res & Dev Process for the production of aluminium
IT1084057B (it) * 1977-03-03 1985-05-25 Elettrocarbonium Spa Procedimento per preparare manufatti di carbone destinati a lavorare ad elevate temperature in atmosfera ossidante e prodotti ottenuti contale procedimento
US4338177A (en) * 1978-09-22 1982-07-06 Metallurgical, Inc. Electrolytic cell for the production of aluminum
US4670110A (en) * 1979-07-30 1987-06-02 Metallurgical, Inc. Process for the electrolytic deposition of aluminum using a composite anode
US4292345A (en) * 1980-02-04 1981-09-29 Kolesnik Mikhail I Method of protecting carbon-containing component parts of metallurgical units from oxidation
DE3028348C2 (de) * 1980-07-25 1985-05-15 C. Conradty Nürnberg GmbH & Co KG, 8505 Röthenbach Kohlenstoffelektrode für Lichtbogenöfen
US4491472A (en) * 1983-03-07 1985-01-01 Aluminum Company Of America Carbothermic reduction and prereduced charge for producing aluminum-silicon alloys
US4486229A (en) * 1983-03-07 1984-12-04 Aluminum Company Of America Carbothermic reduction with parallel heat sources
US4567103A (en) * 1983-07-28 1986-01-28 Union Carbide Corporation Carbonaceous articles having oxidation prohibitive coatings thereon
JP2739136B2 (ja) * 1989-04-19 1998-04-08 イビデン株式会社 抵抗溶接用の炭素電極
CN1052878A (zh) * 1989-12-27 1991-07-10 冶金部洛阳耐火材料研究院 石墨电极防氧化涂料
DE4136823C2 (de) * 1991-11-08 2000-09-14 Contech C Conradty Technika Co Kohlenstoffelektrode für Lichtbogenöfen und Verfahren zum Herstellen einer solchen Kohlenstoffelektrode
US5364513A (en) * 1992-06-12 1994-11-15 Moltech Invent S.A. Electrochemical cell component or other material having oxidation preventive coating
JPH0897102A (ja) * 1994-09-29 1996-04-12 Nisshinbo Ind Inc 電気二重層キャパシタ及び二次電池用分極性電極、その製造方法及びこの分極性電極を使用した電気二重層キャパシタ或いは二次電池
RU2163268C1 (ru) * 2000-06-14 2001-02-20 Открытое акционерное общество "Межрегиональное научно-производственное объединение "Полиметалл" Способ получения алюминия из его оксида
UA43611C2 (uk) * 2001-04-09 2004-05-17 Геннадій Михайлович Русєв Графітований електрод з захисним покриттям
WO2002095078A1 (en) * 2001-05-21 2002-11-28 Elkem Asa Aluminum shapes, method and reactor for the production of aluminum and aluminum shapes by carbothermic reduction of alumina
DE10312370B4 (de) * 2003-03-20 2005-09-15 Sgl Carbon Ag Verbindungsstücke für Elektroden aus Kohlenstoff-Werkstoffen

Also Published As

Publication number Publication date
JP2007537567A (ja) 2007-12-20
US20050254544A1 (en) 2005-11-17
CN100482817C (zh) 2009-04-29
EP1749111A1 (en) 2007-02-07
RU2006144465A (ru) 2008-06-20
US20080237058A1 (en) 2008-10-02
WO2005113844A1 (en) 2005-12-01
RU2365645C2 (ru) 2009-08-27
CN1981061A (zh) 2007-06-13

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