FIELD: chemistry.
SUBSTANCE: invention is meant for producing flexible graphite foil, sorbents and fire-resistant materials. Dispersion graphite and 12-48% aqueous copper nitrate solution are put into an electrolysis cell. Graphite undergoes anodic oxidation at constant potential of 2.3-2.6 V and electric quantity of 100-150 mA·h/g of graphite. The obtained oxidised graphite is dried and thermally treated at temperature 250 °C or 900 °C until thermal expanded graphite is obtained.
EFFECT: invention lowers amount of electricity consumed when producing thermal expanded graphite with low packed density, increases environmental safety of the process.
16 ex, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| EQUIPMENT AND METHOD OF ANODE SYNTHESIS OF THERMAL-EXPANDING COMPOUNDS OF GRAPHITE | 2017 |
|
RU2657063C1 |
| METHOD OF PRODUCTION OF CELLULAR GRAPHITE AND CELLULAR GRAPHITE PRODUCED BY THIS METHOD | 2003 |
|
RU2233794C1 |
| METHOD OF MAKING CELLULAR GRAPHITE MODIFIED WITH IRON TRIAD METAL OXIDES AND CELLULAR GRAPHITE | 2008 |
|
RU2390512C2 |
| METHOD OF OBTAINING MATERIAL BASED ON OXIDISED GRAPHITE FOR ELECTOLYSERS OF ALUMINIUM PRODUCTION AND MATERIAL | 2006 |
|
RU2336227C2 |
| METHOD OF PRODUCTION OF OXYGENATED GRAPHITE AND A DEVICE FOR ITS REALIZATION | 2003 |
|
RU2263070C2 |
| METHOD OF MAKING FLEXIBLE GRAPHITE FOIL AND FOIL | 2007 |
|
RU2370438C2 |
| METHOD OF PRODUCING THERMALLY EXPANDED GRAPHITE AND FOIL BASED THEREON | 2011 |
|
RU2480406C2 |
| METHOD OF TREATMENT OF GRAPHITE AND THE REACTOR FOR ITS REALIZATION | 2005 |
|
RU2291837C2 |
| METHOD OF PRODUCING THERMALLY EXPANDED GRAPHITE, THERMALLY EXPANDED GRAPHITE AND FOIL BASED THEREON | 2011 |
|
RU2472701C1 |
| METHOD OF OBTAINING OXIDISED GRAPHITE | 2014 |
|
RU2561074C1 |
