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1. WO2020107074 - PRODUCTION OF LITHIUM CHEMICALS AND METALLIC LITHIUM

Publication Number WO/2020/107074
Publication Date 04.06.2020
International Application No. PCT/AU2019/051308
International Filing Date 29.11.2019
Chapter 2 Demand Filed 02.03.2020
IPC
C01D 15/02 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15Lithium compounds
02Oxides; Hydroxides
C22B 3/22 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
3Extraction of metal compounds from ores or concentrates by wet processes
20Treatment or purification of solutions, e.g. obtained by leaching
22by physical processes, e.g. by filtration, by magnetic means
C22B 26/12 2006.01
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
26Obtaining alkali, alkaline earth metals or magnesium
10Obtaining alkali metals
12Obtaining lithium
H01M 4/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
04Processes of manufacture in general
H01M 4/131 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
131Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
CPC
B01J 6/008
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
6Heat treatments such as; Calcining; Fusing ; Pyrolysis
008Pyrolysis reactions
C01D 15/02
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15Lithium compounds
02Oxides; Hydroxides
C22B 26/12
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
26Obtaining alkali, alkaline earth metals or magnesium
10Obtaining alkali metals
12Obtaining lithium
C22B 3/065
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
04by leaching
06in inorganic acid solutions ; , e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
065Nitric acids or salts thereof
C22B 3/22
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
3Extraction of metal compounds from ores or concentrates by wet processes
20Treatment or purification of solutions, e.g. obtained by leaching
22by physical processes, e.g. by filtration, by magnetic means, ; by thermal decomposition
H01M 4/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
04Processes of manufacture in general
Applicants
  • ICSIP PTY LTD [AU]/[AU]
Inventors
  • HUNWICK, Richard
Agents
  • GRIFFITH HACK
Priority Data
201890454029.11.2018AU
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PRODUCTION OF LITHIUM CHEMICALS AND METALLIC LITHIUM
(FR) PRODUCTION DE PRODUITS CHIMIQUES AU LITHIUM ET DE LITHIUM MÉTALLIQUE
Abstract
(EN)
A process and system are disclosed for producing lithium oxide from lithium nitrate. In the process and system, the lithium nitrate is thermally decomposed in a manner such that a fraction of the lithium nitrate forms lithium oxide, and such that a remaining fraction of the lithium nitrate does not decompose to lithium oxide. The thermal decomposition may be terminated after a determined time period to ensure that there is a remaining fraction of lithium nitrate and to thereby produce a lithium oxide in lithium nitrate product. The lithium oxide in lithium nitrate product may have one or more transition-metal oxides, hydroxides, carbonates or nitrates added thereto to form a battery electrode. The lithium oxide in lithium nitrate product may alternatively be subjected to carbothermal reduction to produce lithium metal.
(FR)
La présente invention concerne un procédé et un système pour produire de l'oxyde de lithium à partir de nitrate de lithium. Dans le procédé et le système, le nitrate de lithium est décomposé thermiquement de telle sorte qu'une fraction du nitrate de lithium forme de l'oxyde de lithium, et de telle sorte qu'une fraction restante du nitrate de lithium ne se décompose pas en oxyde de lithium. La décomposition thermique peut être terminée après une période déterminée pour s'assurer qu'il y a une fraction restante de nitrate de lithium et pour ainsi produire un oxyde de lithium dans le produit de nitrate de lithium. L'oxyde de lithium dans le produit de nitrate de lithium peut avoir un ou plusieurs oxydes, hydroxydes, carbonates ou nitrates de métal de transition ajoutés à celui-ci pour former une électrode de batterie. L'oxyde de lithium dans le produit de nitrate de lithium peut en variante être soumis à une réduction carbothermique pour produire du métal lithium.
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