BOPI 05 BR / 2025 REPERTOIRE NUMERIQUE 26 (57) The invention relates to methods of household waste management, in particular, to methods of disposing waste by plasma-chemical destruction method. The invention is directed to attaining a technical effect of broadening range of technical solutions by providing a method of destruction of household waste at low temperature of treatment that is comparable to environment temperature. This technical effect is attained by a destruction method, where household waste is fed into a reactor via an input opening, and entry of atmospheric air into the reactor is restricted. The reactor is provided in form of a closed cavity, which inner surface is made conductive entirely or partially and grounded. An electrode protrudes into the reactor, andthis electrode is isolated from the grounded surface. High-voltage pulses are supplied to the electrode. The pulses cause formation of corona discharge streamers in a gap between the electrode and the conductive surface of the reactor. Fig. 1 (11) 21906 Consulter le mémoire (51) C01D 15/02 (2023.01); C01D 15/08 (2023.01); C22B 26/12 (2023.01); C22B 3/06 (2023.01); C22B 3/22 (2023.01) (21) 1202400250 - PCT/AU2022/051538 (22) 19/12/2022 (30) AU n° 2022900080 du 17/01/2022 (54) Process and system for lithium production. (72) HUNWICK Richard James (AU) (73) ICSIP Pty Ltd, Level 5, 6-10 O'Connell Street, SYDNEY, New South Wales 2000 (AU) (74) Cabinet ÉKÉMÉ LYSAGHT SARL, B.P. 6370, YAOUNDE (CM). (57) A process and system are disclosed for producing a lithium product from a solution comprising lithium nitrate. The solution comprising lithium nitrate can be obtained by reacting a lithiumcontaining metal silicate with nitric acid. The process and system comprise subjecting the solution comprising lithium nitrate to a first thermal treatment procedure (in one or more heated vessels) in which water and nitric acid (when present) are removed, and whereby a resultant lithium nitrate-rich crystal slurry is heated to produce a molten liquid. The process and system also comprise passing the molten liquid to a second thermal treatment procedure (in a furtherheated vessel) in which the molten liquid is heated to substantially decompose lithium nitrate to lithium oxide.
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