FIELD: industrial inorganic synthesis.
SUBSTANCE: invention relates to a novel niobium pentachloride preparation method, which can be used to recover niobium in the form of its pentachloride from niobium-containing mineral stock. Method comprises interaction of niobium pentoxide with silicon tetrachloride at elevated pressure and temperature. Process is effected in autoclave under autogenous pressure at 205-245°C.
EFFECT: avoided formation of high-toxicity compounds such as phosgene, carbon monoxide, and chlorinated hydrocarbons.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| TANTALUM PENTACHLORIDE PREPARATION METHOD | 2005 |
|
RU2292302C1 |
| TREATMENT METHOD OF RED MUD | 2008 |
|
RU2360981C1 |
| METHOD OF CHLORINATION OF FERRONIOBIUM AND DEVICE FOR ITS EMBODIMENT | 2000 |
|
RU2184790C1 |
| ZIRCON CONCENTRATE PROCESSING METHOD | 2010 |
|
RU2450974C1 |
| METHOD FOR PRODUCING RARE METAL TETRACHLORIDES USING SULPHUR | 2019 |
|
RU2797475C2 |
| METHOD OF PRODUCING TETRACHLOROSILANE | 2010 |
|
RU2450969C1 |
| METHOD OF CHLORINATING POLYMETALLIC NIOBIUM-TANTALUM CONTAINING RAW MATERIAL AND DEVICE FOR IMPLEMENTING METHOD | 2006 |
|
RU2331680C2 |
| METHOD OF PREPARING NIOBIUM AND/OR TANTALUM PENTACHLORIDES (OPTIONS) | 2004 |
|
RU2253620C1 |
| METHOD FOR CHLORINATION OF SILICON, TITANIUM, ALUMINIUM AND IRON OXIDES | 2022 |
|
RU2810197C2 |
| METHOD OF OBTAINING CARBON TETRACHLORIDE | 0 |
|
SU1525137A1 |
