RU2013108752A - METHOD FOR PRODUCING CATHODE BLOCK FOR ELECTROLYZER FOR PRODUCING ALUMINUM AND CATHODE BLOCK - Google Patents
METHOD FOR PRODUCING CATHODE BLOCK FOR ELECTROLYZER FOR PRODUCING ALUMINUM AND CATHODE BLOCK Download PDFInfo
- Publication number
- RU2013108752A RU2013108752A RU2013108752/02A RU2013108752A RU2013108752A RU 2013108752 A RU2013108752 A RU 2013108752A RU 2013108752/02 A RU2013108752/02 A RU 2013108752/02A RU 2013108752 A RU2013108752 A RU 2013108752A RU 2013108752 A RU2013108752 A RU 2013108752A
- Authority
- RU
- Russia
- Prior art keywords
- cathode block
- coke
- graphitization
- layer
- graphite
- Prior art date
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Ceramic Products (AREA)
Abstract
1. Способ получения катодного блока, включающий в себя этапы заготовки исходных материалов, содержащих кокс и порошок твердого материала, как, например TiBа также при необходимости углеродсодержащего материала, перемешивание исходных материалов, формование катодного блока, карбонизацию и графитизацию, а также охлаждение, отличающийся тем, что этап графитизации проводится при температуре от 2300 до 3000°C, в частности от 2400 до 2900°C.2. Способ по п. 1, отличающийся тем, что этап графитизации проводится со скоростью нагрева от 90 до 200 K/ч и/или при температуре графитизации от 2300 до 2900°C.3. Способ по п. 1 или 2, отличающийся тем, что кокс содержит два сорта кокса, которые при карбонизации, и/или графитизации, и/или охлаждении имеют разные характеристики изменения объема.4. Способ по п. 3, отличающийся тем, что получают катодный блок с объемной плотностью выше 1,68 г/см, в частности выше 1,71 г/см.5. Способ по п. 4, отличающийся тем, что весь катодный блок изготовляют как композит графита и твердого материала.6. Способ по п. 5, отличающийся тем, что катодный блок изготовляют как многослойный блок, причем первый слой в качестве исходного материала содержит кокс, а второй слой в качестве исходного материала содержит кокс и твердый материал, в частности TiB.7. Способ по п. 6, отличающийся тем, что первый и/или второй слой катодного блока в качестве исходного материала содержит по меньшей мере один дополнительный углеродсодержащий материал.8. Способ по п. 7, отличающийся тем, что второй слой получают с толщиной, которая составляет от 10 до 50%, в частности от 15 до 45%, от общей толщины катодного блока.9. Способ по п. 8, отличающийся тем, что доля графита и/или графит1. A method for producing a cathode block, which includes the steps of preparing raw materials containing coke and powder of a solid material, such as TiBa and, if necessary, carbon-containing material, mixing the raw materials, forming a cathode block, carbonization and graphitization, and cooling, characterized in that that the graphitization step is carried out at a temperature of from 2300 to 3000°C, in particular from 2400 to 2900°C.2. Method according to claim 1, characterized in that the graphitization stage is carried out at a heating rate of 90 to 200 K/h and/or at a graphitization temperature of 2300 to 2900°C.3. Method according to claim 1 or 2, characterized in that the coke contains two types of coke, which have different volume change characteristics during carbonization and/or graphitization and/or cooling. Method according to claim 3, characterized in that a cathode block is obtained with a bulk density above 1.68 g/cm, in particular above 1.71 g/cm. Method according to claim 4, characterized in that the entire cathode block is made as a composite of graphite and a hard material. Method according to claim 5, characterized in that the cathode block is produced as a multilayer block, wherein the first layer contains coke as a starting material and the second layer contains coke and a solid material, in particular TiB.7, as a starting material. Method according to claim 6, characterized in that the first and/or second layer of the cathode block contains at least one additional carbonaceous material as a starting material. Method according to claim 7, characterized in that the second layer is obtained with a thickness of 10 to 50%, in particular 15 to 45%, of the total thickness of the cathode block. Method according to claim 8, characterized in that the proportion of graphite and/or graphite
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010038665A DE102010038665A1 (en) | 2010-07-29 | 2010-07-29 | A method of manufacturing a cathode block for an aluminum electrolytic cell and a cathode block |
DE102010038665.0 | 2010-07-29 | ||
PCT/EP2011/063077 WO2012013769A1 (en) | 2010-07-29 | 2011-07-29 | Process for producing a cathode block for an aluminium electrolysis cell and a cathode block |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2013108752A true RU2013108752A (en) | 2014-09-10 |
RU2556192C2 RU2556192C2 (en) | 2015-07-10 |
Family
ID=44546387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2013108752/02A RU2556192C2 (en) | 2010-07-29 | 2011-07-29 | Method of obtaining of cathode pack for electrolyser for aluminium production and cathode pack |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP2598674B1 (en) |
JP (1) | JP5631492B2 (en) |
CN (1) | CN103069053A (en) |
CA (1) | CA2805562C (en) |
DE (1) | DE102010038665A1 (en) |
NO (1) | NO2598674T3 (en) |
RU (1) | RU2556192C2 (en) |
UA (1) | UA109020C2 (en) |
WO (1) | WO2012013769A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE102013202437A1 (en) * | 2013-02-14 | 2014-08-14 | Sgl Carbon Se | Cathode block with a wettable and abrasion resistant surface |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4308114A (en) * | 1980-07-21 | 1981-12-29 | Aluminum Company Of America | Electrolytic production of aluminum using a composite cathode |
US4308115A (en) * | 1980-08-15 | 1981-12-29 | Aluminum Company Of America | Method of producing aluminum using graphite cathode coated with refractory hard metal |
US4376029A (en) * | 1980-09-11 | 1983-03-08 | Great Lakes Carbon Corporation | Titanium diboride-graphite composits |
CN85205776U (en) * | 1985-12-31 | 1986-10-22 | 东北工学院 | Tib2 composite layers-type cathode for ai electrolysis |
US6001236A (en) * | 1992-04-01 | 1999-12-14 | Moltech Invent S.A. | Application of refractory borides to protect carbon-containing components of aluminium production cells |
DE19714433C2 (en) * | 1997-04-08 | 2002-08-01 | Celanese Ventures Gmbh | Process for producing a coating with a titanium boride content of at least 80% by weight |
FR2789093B1 (en) * | 1999-02-02 | 2001-03-09 | Carbone Savoie | GRAPHITE CATHODE FOR ALUMINUM ELECTROLYSIS |
FR2878520B1 (en) * | 2004-11-29 | 2015-09-18 | Saint Gobain Ct Recherches | FRICTION REFRACTOR BLOCK BASED ON SILICON CARBIDE WITH SILICON NITRIDE BOND |
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 |
CN101158048A (en) * | 2007-08-03 | 2008-04-09 | 中国铝业股份有限公司 | Graphitized wetable cathode carbon block for aluminium electrolysis bath and production method thereof |
-
2010
- 2010-07-29 DE DE102010038665A patent/DE102010038665A1/en not_active Withdrawn
-
2011
- 2011-07-29 UA UAA201302501A patent/UA109020C2/en unknown
- 2011-07-29 CN CN2011800374644A patent/CN103069053A/en active Pending
- 2011-07-29 RU RU2013108752/02A patent/RU2556192C2/en active
- 2011-07-29 WO PCT/EP2011/063077 patent/WO2012013769A1/en active Application Filing
- 2011-07-29 EP EP11738711.8A patent/EP2598674B1/en active Active
- 2011-07-29 JP JP2013521156A patent/JP5631492B2/en active Active
- 2011-07-29 CA CA2805562A patent/CA2805562C/en active Active
- 2011-07-29 NO NO11738711A patent/NO2598674T3/no unknown
Also Published As
Publication number | Publication date |
---|---|
CN103069053A (en) | 2013-04-24 |
JP5631492B2 (en) | 2014-11-26 |
UA109020C2 (en) | 2015-07-10 |
DE102010038665A1 (en) | 2012-02-02 |
RU2556192C2 (en) | 2015-07-10 |
JP2013532772A (en) | 2013-08-19 |
EP2598674B1 (en) | 2018-02-14 |
EP2598674A1 (en) | 2013-06-05 |
CA2805562C (en) | 2015-06-16 |
CA2805562A1 (en) | 2012-02-02 |
NO2598674T3 (en) | 2018-07-14 |
WO2012013769A1 (en) | 2012-02-02 |
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Effective date: 20191205 |
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