NO954893L - Behandling av forbrente karbonanoder for aluminiumproduksjon - Google Patents

Behandling av forbrente karbonanoder for aluminiumproduksjon

Info

Publication number
NO954893L
NO954893L NO954893A NO954893A NO954893L NO 954893 L NO954893 L NO 954893L NO 954893 A NO954893 A NO 954893A NO 954893 A NO954893 A NO 954893A NO 954893 L NO954893 L NO 954893L
Authority
NO
Norway
Prior art keywords
anode
boron
aluminum production
cell
treatment
Prior art date
Application number
NO954893A
Other languages
English (en)
Other versions
NO954893D0 (no
Inventor
Fausto Alures Manganiello
Jean-Jacques Duruz
Vittorio Alures Bello
Original Assignee
Moltech Invent Sa
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 claimed from US08/218,679 external-priority patent/US5486278A/en
Application filed by Moltech Invent Sa filed Critical Moltech Invent Sa
Publication of NO954893L publication Critical patent/NO954893L/no
Publication of NO954893D0 publication Critical patent/NO954893D0/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5006—Boron compounds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes
    • C25C3/125—Anodes based on carbon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

En forbrent karbonbasert anode for en elektrolysecelle for produksjon av aluminium, spesielt ved elektrolyse av alumina i en smeltet fluoridelektrolytt, behandles over dens sider og topp for å forbedre deres motstandsdyktighet overfor erosjon under operasjon av cellen på grunn av oksiderende gasser frigjort på anoden, ved neddykking av anoden i en borholdig oppløsning som inneholder 5-60 vekt% H3BO3 eller B2O3 i metanol, etylenglykol, glyserol eller vann med et overflateaktivt stoff, f.eks. ved 80°C til 120°C. Etter 2-60 minutters neddykking er den borholdige oppløsning impregnert til en dybde på 1-10 cm, som regel ca. 2-4 cm, over anodens topp- og sideoverflater som skal beskyttes, under frembringelse av en borkonsentrasjon i den impregnerte overflate fra 200 ppm til 0,35%. Den samme behandling kan anvendes for cellesidevegger.
NO954893A 1993-06-02 1995-12-01 Behandling av forbrente karbonanoder for aluminiumproduksjon NO954893D0 (no)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP93810401 1993-06-02
EP93810545 1993-08-02
US08/218,679 US5486278A (en) 1993-06-02 1994-03-28 Treating prebaked carbon components for aluminum production, the treated components thereof, and the components use in an electrolytic cell
PCT/IB1994/000134 WO1994028200A1 (en) 1993-06-02 1994-06-01 Treating prebaked carbon anodes for aluminium production

Publications (2)

Publication Number Publication Date
NO954893L true NO954893L (no) 1995-12-01
NO954893D0 NO954893D0 (no) 1995-12-01

Family

ID=27235584

Family Applications (1)

Application Number Title Priority Date Filing Date
NO954893A NO954893D0 (no) 1993-06-02 1995-12-01 Behandling av forbrente karbonanoder for aluminiumproduksjon

Country Status (8)

Country Link
AU (1) AU684775B2 (no)
CA (1) CA2161541C (no)
DE (1) DE69410089T2 (no)
NO (1) NO954893D0 (no)
PL (1) PL311881A1 (no)
RU (1) RU2111287C1 (no)
SK (1) SK142095A3 (no)
WO (1) WO1994028200A1 (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5753382A (en) * 1996-01-10 1998-05-19 Moltech Invent S.A. Carbon bodies resistant to deterioration by oxidizing gases
CA2243358C (en) * 1996-01-18 2007-03-13 Moltech Invent S.A. Protection of porous bodies against oxidation
ES2258789T3 (es) * 1996-10-18 2006-09-01 Moltech Invent S.A. Puesta en marcha de celdas para la fabricacion electrolitica de aluminio.
CN102660757B (zh) * 2012-05-23 2015-01-21 深圳市新星轻合金材料股份有限公司 铝电解用惰性阳极材料或惰性阴极涂层材料的制备工艺
RU2532200C2 (ru) * 2012-07-20 2014-10-27 Анатолий Иванович Киселев Способ получения алюминия электролизом криолито-глиноземного расплава с использованием оксида углерода
RU2570076C1 (ru) * 2014-07-31 2015-12-10 Открытое Акционерное Общество "Уральский научно-исследовательский институт композиционных материалов" Способ изготовления изделий из композиционного материала с углерод-керамической матрицей
WO2018129621A1 (en) * 2017-01-12 2018-07-19 UNIVERSITé LAVAL Process for manufacturing carbon anodes for aluminium production cells and carbon anodes obtained from the same
CN113402299A (zh) * 2021-04-27 2021-09-17 北京化工大学 一种提升石墨材料摩擦性能的方法及制备工艺
CN113388864B (zh) * 2021-06-23 2022-08-16 中国铝业股份有限公司 一种低炭渣铝电解用炭素阳极及其制备方法
CN114315356B (zh) * 2022-01-21 2023-05-26 东北大学 一种铝电解炭阳极抗氧化涂层及其制备方法
CN114965879B (zh) * 2022-05-12 2023-10-24 中国铝业股份有限公司 一种铝电解过程二氧化碳排放量的确定方法及相关设备
CN115490525B (zh) * 2022-10-12 2023-03-14 焦作市凌飞环保科技有限公司 一种炭阳极防氧化液体涂料及其制备方法
CN116496085A (zh) * 2023-04-10 2023-07-28 广西强强碳素股份有限公司 一种半石墨质铝电解用预焙阳极制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2042810C3 (de) * 1970-08-28 1975-01-09 Tatabanyai Aluminiumkoho, Tatabanya (Ungarn) Verfahren zur Verminderung der oxydativen Korrosion von Kohlenstoff- oder Graphit-Formkörpern
WO1993020026A1 (en) * 1992-04-01 1993-10-14 Moltech Invent Sa Prevention of oxidation of carbonaceous and other materials at high temperatures

Also Published As

Publication number Publication date
DE69410089D1 (de) 1998-06-10
SK142095A3 (en) 1997-05-07
CA2161541C (en) 1999-09-21
DE69410089T2 (de) 1998-12-17
RU2111287C1 (ru) 1998-05-20
AU684775B2 (en) 1998-01-08
PL311881A1 (en) 1996-03-18
AU6657594A (en) 1994-12-20
WO1994028200A1 (en) 1994-12-08
NO954893D0 (no) 1995-12-01

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