FIELD: chemistry.
SUBSTANCE: invention relates to granules of titanium diboride, used for coating graphite cathodes in electrolytic cells in production of aluminium by electrolysis of molten medium and for repairing holes in cathode bottom of electrolytic cells. Titanium diboride granules have rounded shape, size in accordance with sieve number between 1 and 10 mm and compression strength of at least 5 N. Granules are obtained by mixing TiB2 powder with raw binder materials, preferably oxide, in form of aluminium compounds, obtaining raw workpieces and thermal treatment at temperatures of at least 800 °C.
EFFECT: technical result of invention is improvement resistance of granules to wear and breakdown and improved protection of electrolysis cell against erosion wear.
22 cl, 11 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| WETTABLE CATHODE MATERIAL FOR ALUMINIUM ELECTROLYSIS CELL | 2010 |
|
RU2412283C1 |
| METHOD OF PROTECTING CATHODE BLOCKS OF ALUMINUM ELECTROLYSIS CELLS WITH BURNED ANODES, A PROTECTIVE COMPOSITION AND A COATING | 2019 |
|
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| COMPOSITES FOR WET CATHODES AND THEIR USE IN ALUMINIUM PRODUCTION | 2009 |
|
RU2487956C2 |
| PROTECTION METHOD OF CATHODE UNITS WITH WETTED COATING BASED ON TITANIUM DIBORIDE AT BAKING OF ELECTROLYSIS UNIT | 2012 |
|
RU2502832C1 |
| STABILISERS FOR CATHODE CELL ELEMENTS CONTAINING TITANIUM DEBORIDE | 2004 |
|
RU2360042C2 |
| COMPOUND FOR MATERIAL OF CATHODE WETTED COATING IN ALUMINIUM ELECTROLYSER | 2013 |
|
RU2518032C1 |
| ELECTRODE OF ALUMINUM ELECTROLYTIC CELL (OPTIONS) | 2015 |
|
RU2660448C2 |
| MANUFACTURING METHOD OF CATHODE OF VERTICAL ELECTROLYSIS UNIT FOR ALUMINIUM MANUFACTURE | 2009 |
|
RU2418888C2 |
| METHOD FOR PRODUCING COMPOSITE CARBON-CONTAINING MATERIAL | 2022 |
|
RU2793027C1 |
| COMPOSITE MATERIAL FOR MOISTENED CATHODE OF ALUMINIUM ELECTROLYTIC CELL | 2008 |
|
RU2371523C1 |
