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1. WO2021204375 - SYSTEM AND PROCESS FOR DIRECT LITHIUM EXTRACTION AND PRODUCTION OF LOW CARBON INTENSITY LITHIUM CHEMICALS FROM GEOTHERMAL BRINES

Publication Number WO/2021/204375
Publication Date 14.10.2021
International Application No. PCT/EP2020/060021
International Filing Date 08.04.2020
IPC
F24T 10/20 2018.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
10Geothermal collectors
20using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
C01D 15/02 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15Lithium compounds
02Oxides; Hydroxides
C01D 15/08 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15Lithium compounds
08Carbonates; Bicarbonates
F03G 7/04 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICAL-POWER-PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
04using pressure differences or thermal differences occurring in nature
Applicants
  • VULCAN ENERGIE RESSOURCEN GMBH [DE]/[DE]
Inventors
  • WEDIN, Francis
  • GRANT, Alexander
Agents
  • DURM PATENTANWÄLTE
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND PROCESS FOR DIRECT LITHIUM EXTRACTION AND PRODUCTION OF LOW CARBON INTENSITY LITHIUM CHEMICALS FROM GEOTHERMAL BRINES
(FR) SYSTÈME ET PROCÉDÉ D'EXTRACTION DIRECTE DE LITHIUM ET DE PRODUCTION DE PRODUITS CHIMIQUES DE LITHIUM À FAIBLE INTENSITÉ D'ÉMISSIONS DE CARBONE, À PARTIR DE SAUMURES GÉOTHERMIQUES
Abstract
(EN)
A system and process for direct lithium extraction from geothermal brines, and more particular to the sequential combination of a binary cycle geothermal plant (200), a direct lithium extraction circuit (400), a lithium chloride concentration and purification circuit (600), and a lithium battery chemical processing circuit (800), for the production of battery-quality lithium hydroxide monohydrate, lithium carbonate or both from geothermal brines. The processing circuits are powered by the electricity and heat produced by the binary cycle geothermal plant without the use of carbon-based fuels. Non-condensable gases that may come out of solution from the geothermal brine are not emitted into the atmosphere.
(FR)
L'invention concerne un système et un procédé d'extraction directe de lithium à partir de saumures géothermiques, et plus particulièrement la combinaison successive d'une installation géothermique à cycle binaire (200), d'un circuit d'extraction directe de lithium (400), d'un circuit de concentration et de purification de chlorure de lithium (600) et d'un circuit de traitement chimique de batteries au lithium (800), permettant la production de monohydrate d'hydroxyde de lithium, de carbonate de lithium ou des deux, de qualité batterie, à partir de saumures géothermiques. Les circuits de traitement sont alimentés en électricité et en chaleur produites par l'installation géothermique à cycle binaire, sans utiliser des combustibles à base de carbone. Des gaz non condensables, pouvant se dégager de la solution à partir de la saumure géothermique, ne sont pas émis vers l'atmosphère.
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