RU2016111763A - Электрод алюминиевого электролизера (варианты) - Google Patents
Электрод алюминиевого электролизера (варианты) Download PDFInfo
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Claims (20)
1. Электрод электролизера для электролитического получения алюминия из оксида алюминия, растворенного в расплавленном электролите, включающий основу электрода и нанесенное на основу поверхностное покрытие, выполненное на основе тугоплавкой керамики или выполненное из тугоплавкой керамики, отличающийся тем, что основа электрода выполнена из композиционного материала с содержанием от 5 до 90 мас. % тугоплавкой керамики и с содержанием, по меньшей мере, одного металла с температурой плавления выше 1000°C, образующего при взаимодействии с алюминием тугоплавкие интерметаллиды, и/или с содержанием, по меньшей мере, одного сплава такого металла.
2. Электрод по п. 1, отличающийся тем, что в качестве металла с температурой плавления выше 1000°C в составе композиционного материала использован, по меньшей мере, один из следующих металлов: железо, никель, марганец, титан, тантал, цирконий, хром, ниобий, кобальт, ванадий и/или, по меньшей мере, один его сплав.
3. Электрод по п. 1, отличающийся тем, что в качестве тугоплавкой керамики в композиционном материале основы электрода и в композиционном материале поверхностного покрытия использованы бориды и карбиды титана, циркония, ниобия, тантала, вольфрама, молибдена, карбиды бора и/или их смеси.
4. Электрод по п. 3, отличающийся тем, что в композиционном материале основы электрода бориды и карбиды образованы в процессе изготовления электрода путем добавления бора и углерода в металл и/или сплав, входящие в состав композиционного материала.
5. Электрод по п. 3, отличающийся тем, что в композиционном материале тугоплавкая керамика равномерно распределена по всему объему материала в виде частиц размером 1-1000 мкм.
6. Электрод по п. 1, отличающийся тем, что в качестве поверхностного покрытия на основу электрода нанесен композиционный материал с содержанием тугоплавкой керамики более 90 мас. %.
7. Электрод по п. 1, отличающийся тем, что поверхность основы электрода из композиционного материала, расположенная под поверхностным покрытием из тугоплавкой керамики, насыщена углеродом.
8. Электрод по п. 1, отличающийся тем, что он представляет собой катод или катодную часть биполярного электрода.
9. Электрод электролизера для электролитического получения алюминия из оксида алюминия, растворенного в расплавленном электролите, включающий основу электрода и нанесенное на основу поверхностное покрытие, выполненное на основе тугоплавкой керамики или выполненное из тугоплавкой керамики, отличающийся тем, что основа электрода выполнена из стали или металлического сплава с нанесенным на поверхность основы электрода промежуточным слоем из композиционного материала с содержанием от 5 до 90 мас. % тугоплавкой керамики и с содержанием, по меньшей мере, одного металла с температурой плавления выше 1000°C, образующего при взаимодействии с алюминием тугоплавкие интерметаллиды, и/или с содержанием, по меньшей мере, одного сплава такого металла.
10. Электрод по п. 9, отличающийся тем, что в качестве материала основы из металлического сплава использована конструкционная углеродистая сталь.
11. Электрод по п. 10, отличающийся тем, что в качестве материала основы использованы жаропрочная и жаростойкая сталь или жаропрочный и жаростойкий металлический сплав.
12. Электрод по п. 9, отличающийся тем, что в качестве металла с температурой плавления выше 1000°C в составе композиционного материала использован, по меньшей мере, один из следующих металлов: железо, никель, марганец, титан, тантал, цирконий, хром, ниобий, кобальт, ванадий и/или, по меньшей мере, один его сплав.
13. Электрод по п. 9, отличающийся тем, что в качестве тугоплавкой керамики в составе композиционного материала использованы бориды и карбиды титана, циркония, ниобия, тантала, вольфрама, молибдена, карбиды бора и/или их смеси.
14. Электрод по п. 13, отличающийся тем, что бориды и карбиды в композиционном материале основы электрода образованы в процессе изготовления электрода путем добавления бора и углерода в металл или сплав, входящие в состав композиционного материала.
15. Электрод п. 13, отличающийся тем, что тугоплавкая керамика в композиционном материале находится в виде частиц с размером 1-1000 мкм, при этом частицы равномерно распределены по объему материала.
16. Электрод по п. 9, отличающийся тем, что промежуточный слой выполнен из композиционного материала, в котором содержание тугоплавкой керамики увеличено по толщине слоя от основы электрода к поверхностному покрытию от 5 до 90 мас. % вблизи поверхности основы до величины более 90% вблизи поверхностного покрытия.
17. Электрод по п. 9, отличающийся тем, что на поверхность основы электрода, покрытую промежуточным слоем из композиционного материала с содержанием керамики от 5 до 90 мас. % нанесен дополнительный слой с содержанием керамики более 90 мас. %.
18. Электрод по п. 9, отличающийся тем, что суммарная толщина промежуточного слоя и поверхностного покрытия составляет 0,5-10 мм.
19. Электрод по п. 9 или 17, отличающийся тем, что под смачиваемым алюминием поверхностным покрытием на основе тугоплавкой керамики или из тугоплавкой керамики расположена насыщенная углеродом поверхность промежуточного слоя или дополнительного слоя.
20. Электрод по п. 9, отличающийся тем, что он представляет собой катод или катодную часть биполярного электрода.
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AU (1) | AU2015391979A1 (ru) |
BR (1) | BR112017016120A2 (ru) |
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GB2604540B (en) | 2016-02-03 | 2023-01-11 | Luther Systems | System and method for secure management of digital contracts |
CN112441846A (zh) * | 2020-12-03 | 2021-03-05 | 河北镭传科技有限责任公司 | 一种碳化硼陶瓷的处理方法及应用 |
CN113860916B (zh) * | 2021-09-14 | 2022-10-14 | 内蒙古科技大学 | 耐侵蚀碳化铌钛涂层、耐侵蚀碳化硅容器及其制备方法和应用 |
CN115947602B (zh) * | 2022-10-10 | 2023-11-07 | 中南大学 | 一种ZrB2基金属陶瓷惰性阳极及其制备方法和应用 |
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US3321392A (en) * | 1962-09-07 | 1967-05-23 | Reynolds Metals Co | Alumina reduction cell and method for making refractory lining therefor |
US3697390A (en) | 1969-04-14 | 1972-10-10 | Us Interior | Electrodeposition of metallic boride coatings |
US3827954A (en) | 1969-04-14 | 1974-08-06 | Us Interior | Electrodeposition of metallic boride coatings |
US4529494A (en) * | 1984-05-17 | 1985-07-16 | Great Lakes Carbon Corporation | Bipolar electrode for Hall-Heroult electrolysis |
US5364513A (en) | 1992-06-12 | 1994-11-15 | Moltech Invent S.A. | Electrochemical cell component or other material having oxidation preventive coating |
US5310476A (en) * | 1992-04-01 | 1994-05-10 | Moltech Invent S.A. | Application of refractory protective coatings, particularly on the surface of electrolytic cell components |
RU2031189C1 (ru) * | 1992-07-02 | 1995-03-20 | Лорис Петрович Шульгин | Способ извлечения благородных металлов из руд, отходов и побочных продуктов обогащения и гидрометаллургии |
ATE182370T1 (de) * | 1992-12-17 | 1999-08-15 | Comalco Alu | Elektrolysezelle für die herstellung von metallen |
AUPO053496A0 (en) * | 1996-06-18 | 1996-07-11 | Comalco Aluminium Limited | Cathode construction |
US6533909B2 (en) * | 1999-08-17 | 2003-03-18 | Moltech Invent S.A. | Bipolar cell for the production of aluminium with carbon cathodes |
US6267866B1 (en) * | 1999-10-14 | 2001-07-31 | The United States Of America As Represented By The Secretary Of The Navy | Fabrication of a high surface area boron-doped diamond coated metal mesh for electrochemical applications |
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CA2640206A1 (fr) * | 2008-10-02 | 2010-04-02 | Hydro-Quebec | Materiaux composites pour cathodes mouillables et usage de ceux-ci pour la production d'aluminium |
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CN103304239A (zh) * | 2013-06-27 | 2013-09-18 | 中国铝业股份有限公司 | 一种铝电解槽用TiB2基金属陶瓷材料及其制备方法 |
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- 2015-04-23 CN CN201580078146.0A patent/CN107429414A/zh active Pending
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EP3348676A1 (en) | 2018-07-18 |
CN107429414A (zh) | 2017-12-01 |
AU2015391979A1 (en) | 2017-08-10 |
CA2983583A1 (en) | 2016-10-27 |
CA2983583C (en) | 2019-09-17 |
EP3348676A4 (en) | 2021-04-07 |
US20180038004A1 (en) | 2018-02-08 |
US11339490B2 (en) | 2022-05-24 |
BR112017016120A2 (pt) | 2018-03-27 |
RU2660448C2 (ru) | 2018-07-06 |
WO2016171580A1 (ru) | 2016-10-27 |
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