FIELD: glass production; ceramics production.
SUBSTANCE: invention relates to a technology for producing lithium oxide to obtain pure solutions of lithium hydroxide or to obtain glass, glass ceramics or crystal ceramics, for example lithium-ion conducting ceramics. Lithium oxide is obtained from lithium carbonate and elementary carbon or a carbon source that gives elementary carbon at a temperature in the range from 720°C to 1200°C, while the reaction is carried out at almost complete oxygen exclusion in one or more tanks having surfaces contacting with a product selected from a group consisting of glass carbon, lithium aluminate, ceramics coated with carbon, C-coated quartz glass and tantalum.
EFFECT: invention provides for obtaining powder lithium oxide of high purity by an economical technology.
23 cl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ALUMINIUM ALLOY PRODUCING | 1993 |
|
RU2067123C1 |
| METHOD OF OBTAINING COMPLEX LITHIUM TANTALATE OF STRONTIUM AND LANTHANUM | 2020 |
|
RU2744884C1 |
| PROCEDURE FOR COMPLEX PROCESSING CRUDE SPODUMENE ORE FOR PRODUCTION OF LITHIUM PRODUCTS AND CEMENTS | 2008 |
|
RU2390571C1 |
| LANTHANUM AND CALCIUM COMPLEX LITHIUM TANTALATE PRODUCING METHOD | 2019 |
|
RU2704990C1 |
| LITHIUM SILICATE GLASS-CERAMIC AND LITHIUM SILICATE GLASS COMPRISING PENTAVALENT METAL OXIDE | 2012 |
|
RU2648447C2 |
| METHOD OF PRODUCING LITHIUM TITANATE | 2009 |
|
RU2519840C2 |
| METHOD OF OBTAINMENT OF TOOTH PROSTHESES | 2013 |
|
RU2646833C2 |
| LITHIUM SILICATE GLASS CERAMICS AND GLASS WITH MONOVALENT METAL OXIDE | 2012 |
|
RU2606999C2 |
| METHOD FOR PROCESSING MICA CONCENTRATE | 2020 |
|
RU2749598C1 |
| SPODUMENE CONCENTRATE PROCESSING METHOD | 2001 |
|
RU2222622C2 |
