RU2001124345A - IMPREGNATED GRAPHITE CATHODE FOR ELECTROLYSIS OF ALUMINUM - Google Patents

IMPREGNATED GRAPHITE CATHODE FOR ELECTROLYSIS OF ALUMINUM

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Publication number
RU2001124345A
RU2001124345A RU2001124345/02A RU2001124345A RU2001124345A RU 2001124345 A RU2001124345 A RU 2001124345A RU 2001124345/02 A RU2001124345/02 A RU 2001124345/02A RU 2001124345 A RU2001124345 A RU 2001124345A RU 2001124345 A RU2001124345 A RU 2001124345A
Authority
RU
Russia
Prior art keywords
cathode
autoclave
graphite
graphite cathode
carbon
Prior art date
Application number
RU2001124345/02A
Other languages
Russian (ru)
Other versions
RU2245396C2 (en
Inventor
Режи ПОЛЮС
Жан-Мишель ДРЕЙФЮС
Original Assignee
Карбон Савуа
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 FR9901322A external-priority patent/FR2789093B1/en
Application filed by Карбон Савуа filed Critical Карбон Савуа
Publication of RU2001124345A publication Critical patent/RU2001124345A/en
Application granted granted Critical
Publication of RU2245396C2 publication Critical patent/RU2245396C2/en

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Claims (4)

1. Пропитанный графитовый катод для электролиза алюминия, отличающийся тем, что содержит в порах своей структуры углеродсодержащий продукт (12), обожженный при температуре менее 1600°С, повышающий сопротивление эрозии путем защиты графитизированного связующего вещества.1. An impregnated graphite cathode for aluminum electrolysis, characterized in that it contains a carbon-containing product in the pores of its structure (12), calcined at a temperature of less than 1600 ° C, increasing erosion resistance by protecting the graphitized binder. 2. Графитовый катод по п.1, отличающийся тем, что углеродсодержащий продукт (12) введен путем внедрения его в графитовый катод, полученный известным образом.2. A graphite cathode according to claim 1, characterized in that the carbon-containing product (12) is introduced by incorporating it into a graphite cathode obtained in a known manner. 3. Графитовый катод по любому из пп.1 и 2, отличающийся тем, что углеродсодержащий продукт (12), защищающий графитизированное связующее вещество, выбран из угольных пеков и нефтяных пеков.3. A graphite cathode according to any one of claims 1 and 2, characterized in that the carbon-containing product (12) protecting the graphitized binder is selected from coal pitch and oil pitch. 4. Способ изготовления графитового катода по п.3, отличающийся тем, что сначала получают катод (3) известным образом из кокса - с графитом или без графита - и из пека, подвергнутого термообработке при температуре, превышающей 2400°С, помещают этот катод в автоклав, создают вакуум в автоклаве (6) и при температуре, при которой пропитывающий продукт (12) приобретает требуемую вязкость, вводят его в жидкой фазе в автоклав до тех пор, пока катод (3) не окажется полностью погруженным, устраняют вакуум в автоклаве путем нагнетания сжатого газа для обеспечения, в зависимости от длительности обработки, частичного или полного заполнения пор в катоде пропитывающим продуктом, возвращают автоклав к атмосферному давлению, извлекают катод из автоклава, и в заключение, проводят термообработку при температуре менее 1600°С, но достаточной для отверждения и/или спекания пропитывающего продукта и образования неграфитизированного угольного слоя, который защищает графитизированное связующее вещество от эрозии.4. A method of manufacturing a graphite cathode according to claim 3, characterized in that the cathode (3) is first obtained in a known manner from coke — with or without graphite — and from the pitch subjected to heat treatment at a temperature exceeding 2400 ° C, this cathode is placed in autoclave, create a vacuum in the autoclave (6) and at a temperature at which the impregnating product (12) acquires the required viscosity, introduce it in the liquid phase into the autoclave until the cathode (3) is completely submerged, eliminate the vacuum in the autoclave by compressed gas injection for Depending on the duration of the treatment, partial or complete filling of the pores in the cathode with the impregnating product, the autoclave is returned to atmospheric pressure, the cathode is removed from the autoclave, and finally, heat treatment is performed at a temperature of less than 1600 ° C, but sufficient for curing and / or sintering the impregnating product and the formation of a non-graphitized carbon layer that protects the graphitized binder from erosion.
RU2001124345/02A 1999-02-02 2000-02-01 Impregnated graphitic cathode for electrolysis of aluminum RU2245396C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR99/01322 1999-02-02
FR9901322A FR2789093B1 (en) 1999-02-02 1999-02-02 GRAPHITE CATHODE FOR ALUMINUM ELECTROLYSIS

Publications (2)

Publication Number Publication Date
RU2001124345A true RU2001124345A (en) 2003-06-27
RU2245396C2 RU2245396C2 (en) 2005-01-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001124345/02A RU2245396C2 (en) 1999-02-02 2000-02-01 Impregnated graphitic cathode for electrolysis of aluminum

Country Status (18)

Country Link
US (1) US6723212B1 (en)
EP (1) EP1159469B1 (en)
JP (1) JP2002538294A (en)
CN (1) CN1245536C (en)
AT (1) ATE264930T1 (en)
AU (1) AU777442B2 (en)
BR (1) BR0007916A (en)
CA (1) CA2361613C (en)
DE (1) DE60010061T2 (en)
ES (1) ES2215022T3 (en)
FR (1) FR2789093B1 (en)
IS (1) IS6025A (en)
MX (1) MXPA01007828A (en)
NO (1) NO20013776L (en)
PL (1) PL350237A1 (en)
RU (1) RU2245396C2 (en)
WO (1) WO2000046427A1 (en)
ZA (1) ZA200106313B (en)

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FR2821365A1 (en) * 2001-02-28 2002-08-30 Carbone Savoie GRAPHITE CATHODE FOR ALUMINUM ELECTROLYSIS
JP4361258B2 (en) * 2002-10-24 2009-11-11 内山工業株式会社 Sealing device with encoder
DE10261745B3 (en) * 2002-12-30 2004-07-22 Sgl Carbon Ag Cathode system for electrolytic aluminum extraction
EP1531194A1 (en) * 2003-11-14 2005-05-18 Sgl Carbon Ag Cathode blocks for aluminium electrolysis cell with wear detection mechanism
CN100415939C (en) * 2004-12-15 2008-09-03 贵阳铝镁设计研究院 Cathode impregnation method and apparatus
CN101275244B (en) * 2004-12-15 2010-04-07 贵阳铝镁设计研究院 Cathode impregnating device
US20070284259A1 (en) * 2006-06-12 2007-12-13 Macleod Andrew S Preheating of electrolytic cell
CN100491600C (en) * 2006-10-18 2009-05-27 中国铝业股份有限公司 Method for preparing carbon block of cathode capable of being humidified
US20110027603A1 (en) * 2008-12-03 2011-02-03 Applied Nanotech, Inc. Enhancing Thermal Properties of Carbon Aluminum Composites
US20110147647A1 (en) * 2009-06-05 2011-06-23 Applied Nanotech, Inc. Carbon-containing matrix with additive that is not a metal
US20100310447A1 (en) * 2009-06-05 2010-12-09 Applied Nanotech, Inc. Carbon-containing matrix with functionalized pores
DE102010029538A1 (en) * 2010-05-31 2011-12-01 Sgl Carbon Se Carbon body, process for producing a carbon body and its use
DE102010038650A1 (en) * 2010-07-29 2012-02-02 Sgl Carbon Se A method of making a cathode block for an aluminum electrolytic cell and a cathode block
DE102010038665A1 (en) * 2010-07-29 2012-02-02 Sgl Carbon Se A method of manufacturing a cathode block for an aluminum electrolytic cell and a cathode block
RU2443623C1 (en) * 2010-10-14 2012-02-27 Закрытое акционерное общество "Институт новых углеродных материалов и технологий" (ЗАО "ИНУМиТ") Method of producing higher abrasive resistance of graphitised material
DE102012201468A1 (en) * 2012-02-01 2013-08-01 Sgl Carbon Se A method of making a cathode block for an aluminum electrolytic cell and a cathode block
JP6030369B2 (en) * 2012-07-27 2016-11-24 日本碍子株式会社 Melting container and high frequency melting apparatus

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US3616045A (en) 1969-02-17 1971-10-26 Tatabanyai Aluminiumkoho Process for increasing the strength and electrical conductivity of graphite or carbon articles and/or for bonding such articles to each other to ceramic articles or to metals
JPS5427313B1 (en) * 1971-04-27 1979-09-08
DE3327230A1 (en) 1983-07-28 1985-02-07 Sigri Elektrographit Gmbh, 8901 Meitingen LINING FOR ELECTROLYSIS PAN FOR PRODUCING ALUMINUM
IT8648573A0 (en) * 1985-10-22 1986-10-22 Union Carbide Corp IMPREGNANT, HAVING A REDUCED COEF CARBON-CARBON COMPOSITIONS SUITABLE FOR THERMAL EXPANSION AND KEEPING PITCH POORLY GRAPHITIZED IMPROVED RESISTANCE TO BENDING ZANTE AS A BINDER AND/OR A
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