The technology is based on the method of obtaining pure rare earth metals (REM) from pure oxides by means of their chlorination followed by thermal treatment of the chlorides with lithium hydride at a temperature of 700—900°С. Further hydrometallurgical treatment of the reaction mass includes washing with water at room temperature and drying the metal hydride powder. Dehydrogenation is performed in vacuum at 800—900°С, resulting in dense metal powders.
The technology allows obtaining:
The side products of reaction are easily utilized.
Energy-consuming stages of distillation or refining are excluded.
The technology has been mastered with the larger-scale laboratory equipment allowing one to obtain small lots of samples; the technology has also been tested at a number of plants of Novosibirsk and Krasnoyarsk at the level of semi-industrial production.
Patent was granted in 1994 in Russian Federation.
Within contacts and agreements, the NIIC is ready to perform:
Proposals from foreign companies for shipment of large lots are available, but the Institute cannot fulfill them due to the absence of experimental production.
Nikolaev Institute of Inorganic Chemistry SB RAS
Acad. Lavrentyev ave., 3, Novosibirsk, Russia, 630090
Scientific secretary of Institute
Gerasko Olga Anatolievna, Doctor of chemical sciences
Phone: +7(383) 330-94-86