The invention relates to recovering lithium, e.g. for commercial products, such as lithium hydroxide monohydrate, lithium carbonate or low sodium lithium carbonate from solids resources with minimized energy consumption.
C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
C22B 3/26 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
C22B 3/42 - Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
2.
HYDROPHOBIC ORGANIC LIQUID COMPOSITION FOR THE SELECTIVE EXTRACTION OF A LITHIUM SALT
33, from a lithium-rich brine to be treated, said composition comprising (A) at least one compound extracting the lithium cation, chosen from the compounds of formula: (I) in which R1, R2, R3, R4, R5 and R6 are as defined in the description; (B) at least one organic, protic and hydrophobic compound solvating the anion complementary to the lithium cation; and (C) at least one hydrophobic polar organic diluent having a flash point at atmospheric pressure greater than 60°C, preferably greater than 75°C, more preferably greater than 90°C.
The present invention relates to a method for selectively extracting a salt to be extracted from a brine to be treated containing the salt to be extracted, characterized in that: the brine to be treated (S1) is sent to what is referred to as a first extraction mixing agitator (1a) to which a liquid hydrophobic organic phase is also added; the brine and the liquid hydrophobic organic phase are mixed in the extraction mixing agitator (1a); and the mixture is sent to what is referred to as a first separating decanter (1d, 1dc), to obtain: a brine from which salt to be extracted has been removed; and an organic phase loaded with salt to be extracted; the brine from which the salt to be extracted has been removed is recovered; the organic phase loaded with salt to be extracted is sent to an initial washing mixing agitator/separating decanter centrifuge (5a, 5dc or 7a, 7dc), to obtain a purified organic phase loaded with salt to be extracted which is sent to what is referred to as an "organic" heat exchanger (1e) in which it is heated before being sent to what is referred to as an initial regeneration column (1c; 2c) in which countercurrent exchange with hot water is carried out, this hot water being at a temperature higher than that of the starting brine, to obtain: water containing the salt to be extracted; and a regenerated organic phase, which has lost the salt to be extracted; the regenerated organic phase is recirculated to the initial extraction mixing agitator (1a).
A temperature-regenerated hydrophobic liquid composition includes an extracting molecule of a non-alkaline cationic species, a solvating molecule of a complimentary anionic species and a fluidizing agent. The extracting molecule of a non-alkaline cationic species is a macrocycle of which the ring is formed from 24-32 carbon atoms and has the following formula (I) or (II): wherein —n is an integer ranging from 5 to 8, —p is 1 or 2, —m is 3 or 4, —q and t, which may be identical or different, are 0, 1 or 2, —R is a tert-butyl, tert-octyl, O-methyl, O-ethyl, O-propyl, O-isopropyl, O-butyl, O-isobutyl, O-pentyl, O-hexyl, O-heptyl, O-octyl, or OCH2Phenyl group or a hydrogen atom, and —R′ and R″, which may be identical or different, are chosen from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, heptyl and octyl groups or R′ and R″ together form a pyrrolidine, piperidine or morpholine ring.
C02F 5/10 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
6.
Device and method for the desalination of water by means of thermal deionisation and liquid-phase ion extraction liquid
Disclosed is a method for treating water, including the extraction of at least two ionic species, the ionic species including an anionic species and a cationic species and being present in the water to be treated, the method especially including a step of mixing a liquid hydrophobic organic phase and the water to be treated, the water to be treated being in the liquid state, in order to subsequently obtain liquid treated water and a hydrophobic liquid organic phase loaded with the ionic species, and a step of thermal regeneration of the organic phase loaded with chemical species. Also disclosed are compounds and compositions that can be used in the method.
C07C 233/15 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
C02F 1/26 - Treatment of water, waste water, or sewage by extraction
B01D 11/04 - Solvent extraction of solutions which are liquid
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C02F 1/38 - Treatment of water, waste water, or sewage by centrifugal separation
C02F 1/10 - Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
7.
Method for extracting salts and temperature-regenerated extracting composition
2Phenyl group or a hydrogen atom, and—R′ and R″, which may be identical or different, are chosen from methyl, ethyl, propyl, isopropyl, butyl, isobutyl, heptyl and octyl groups or R′ and R″ together form a pyrrolidine, piperidine or morpholine ring.
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C22B 3/44 - Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
C02F 5/10 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
C02F 103/36 - Nature of the water, waste water, sewage or sludge to be treated from the chemical industry not provided for in groups from the manufacture of organic compounds
8.
METHOD FOR EXTRACTING SALTS AND TEMPERATURE-REGENERATED EXTRACTING COMPOSITION
A temperature-regenerated hydrophobic liquid composition comprising an extracting molecule of a non-alkaline cationic species, a solvating molecule of a complimentary anionic species and a fluidizing agent, wherein said composition is characterized in that the extracting molecule of a non-alkaline cationic species is a macrocycle of which the ring is formed from 24 to 32 carbon atoms and has the following formula (I) or (II): wherein -n is an integer ranging from 5 to 8, -p is 1 or 2, -m is 3 or 4, -q and t, which may be identical or different, are 0, 1 or 2, -R is a tert-butyl, tert-octyl, O-methyl, O-ethyl, O-propyl, O-isopropyl, O-butyl, O-isobutyl, O-pentyl, O-hexyl, O-heptyl, O-octyl, or OCH2Phenyl group or a hydrogen atom, and - R' and R'', which may be identical or different, are chosen from the group made up of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, heptyl and octyl groups or R' and R'' together form a pyrrolidine, piperidine or morpholine ring.
B01D 11/04 - Solvent extraction of solutions which are liquid
B01J 45/00 - Ion-exchange in which a complex or a chelate is formedUse of material as complex or chelate forming ion-exchangersTreatment of material for improving the complex or chelate forming ion-exchange properties
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C02F 5/10 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
9.
METHOD FOR EXTRACTING SALTS AND TEMPERATURE-REGENERATED EXTRACTING COMPOSITION
A temperature-regenerated hydrophobic liquid composition comprising an extracting molecule of a non-alkaline cationic species, a solvating molecule of a complimentary anionic species and a fluidizing agent, wherein said composition is characterized in that the extracting molecule of a non-alkaline cationic species is a macrocycle of which the ring is formed from 24 to 32 carbon atoms and has the following formula (I) or (II): wherein -n is an integer ranging from 5 to 8, -p is 1 or 2, -m is 3 or 4, -q and t, which may be identical or different, are 0, 1 or 2, -R is a tert-butyl, tert-octyl, O-methyl, O-ethyl, O-propyl, O-isopropyl, O-butyl, O-isobutyl, Opentyl, O-hexyl, O-heptyl, O-octyl, or OCH2Phenyl group or a hydrogen atom, and - R' and R", which may be identical or different, are chosen from the group made up of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, heptyl and octyl groups or R' and R" together form a pyrrolidine, piperidine or morpholine ring.
B01D 11/04 - Solvent extraction of solutions which are liquid
B01J 45/00 - Ion-exchange in which a complex or a chelate is formedUse of material as complex or chelate forming ion-exchangersTreatment of material for improving the complex or chelate forming ion-exchange properties
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C02F 5/10 - Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
10.
Device and method for the desalination of water by means of thermal deionisation and liquid-phase ion extraction liquid
Disclosed is a method for treating water, including the extraction of at least two ionic species, the ionic species including an anionic species and a cationic species and being present in the water to be treated, the method especially including a step of mixing a liquid hydrophobic organic phase and the water to be treated, the water to be treated being in the liquid state, in order to subsequently obtain liquid treated water and a hydrophobic liquid organic phase loaded with the ionic species, and a step of thermal regeneration of the organic phase loaded with chemical species. Also disclosed are compounds and compositions that can be used in the method.
C07C 233/15 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by halogen atoms or by nitro or nitroso groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
C02F 1/26 - Treatment of water, waste water, or sewage by extraction
B01D 11/04 - Solvent extraction of solutions which are liquid
C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
C02F 1/38 - Treatment of water, waste water, or sewage by centrifugal separation
C02F 1/10 - Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
11.
Water pretreatment unit using a fluorinated liquid
A unit for pretreating water by heat and/or ion treatment. It provides a pretreatment unit including a direct contact heat and/or ion exchanger having a continuous or dispersed phase that includes a fluorinated liquid that is not miscible with water with a density of more than 1.25.
C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
C02F 1/26 - Treatment of water, waste water, or sewage by extraction
C02F 1/10 - Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
C02F 1/22 - Treatment of water, waste water, or sewage by freezing
F28C 3/04 - Other direct-contact heat-exchange apparatus the heat-exchange media both being liquids
B01D 11/04 - Solvent extraction of solutions which are liquid
B01D 3/00 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
The invention relates to a method for treating water, comprising the extraction of at least two ionic species, said ionic species comprising an anionic species and a cationic species and being present in the water to be treated, said method especially comprising a step of mixing a liquid hydrophobic organic phase and the water to be treated, said water to be treated being in the liquid state, in order to subsequently obtain liquid treated water and a hydrophobic liquid organic phase loaded with said ionic species, and a step of thermal regeneration of said organic phase loaded with chemical species. The invention also relates to compounds and compositions that can be used in the method according to the invention.
C02F 1/10 - Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
C02F 1/38 - Treatment of water, waste water, or sewage by centrifugal separation
A unit for pretreating water by heat and/or ion treatment. It provides a pretreatment unit including a direct contact heat and/or ion exchanger having a continuous or dispersed phase that includes a fluorinated liquid that is not miscible with water with a density of more than 1.25.
F28C 3/04 - Other direct-contact heat-exchange apparatus the heat-exchange media both being liquids
C02F 1/10 - Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
C02F 1/42 - Treatment of water, waste water, or sewage by ion-exchange
C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
The present invention relates to a water pretreatment unit, in particular for salt water, using a heat and/or ion treatment. The invention more particularly relates to a pretreatment unit that comprises a direct contact heat and/or ion exchanger having a continuous or dispersed phase that comprises a fluorinated liquid which is immiscible with water and having a density higher than 1.25.
C02F 1/10 - Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
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