Separation of rare earth matals

A method for extracting a rare earth metal from a mixture of one or more rare earth metals comprises contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted; said ionic liquid has the formula: [Cat+][X-], wherein [Cat+] is [Y+]L1N(L2-EDG)2,where L1 and L2 are organic linking groups and EDG are electron donating groups all defined further in claim 1. In the worked embodiment, the ionic liquid is [MAIL+][NTf2-] (formula I below). The cation [MAIL+] can be formed by the reaction of 1-(3-aminopropyl)-imidazole with N,N-diisobutyl-2-chloroacetamide. The ionic liquid itself is claimed. Formula I: ...

Ionic Liquid Preparation

Preparation of cationic species [Cat+] for an ionic liquid, comprising conversion of primary amine (1) into tertiary amine cationic species [Cat+] by incorporation of 3 EDG-L2 groups through loss of leaving group LG from compounds (2): wherein the process is conducted in a sealed reactor at 100°C or more; L1 is a linking group selected from C1-10­ alkanediyl, C­2-10 alkenediyl, C­­1-10 dialkanylether and C1-10­ dialkanylketone groups; L2 is selected from C1-2­ alkanediyl, C­2 alkenediyl, C­­1-2 dialkanylether and C1-2 dialkanylketone groups; EDG is an electron donating group; Z+ represents imidazolium or a group defined in the claims. Preferably the EDG group is an amide. Preparation of an ionic liquid having the formula [Cat+][X-] comprises preparing said cationic species [Cat+] and where LG- is not the same as X-, carrying out an ion exchange between [LG-] and [X-] to form the ionic liquid. A method for extracting a rare earth metal from a mixture of rare earth metals (e.g. dysprosium ...

Process for removing metals from hydrocarbons

The invention relates to a process for the removal of metals (especially mercury) from a mercury-containing hydrocarbon fluid feed using specifically selected ionic liquids, comprising contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula [Cat+][M+][X-] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed. An alternative process involves the use of a metallate salt of the following formula [Q+][(Mx+)m(Ly-)m](nx-my) For the meanings of the above symbols, please see the specification.

Enhanced separation of rare earth metals

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, comprises contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted, wherein the ionic liquid has the formula [Cat+][X-], where [X-] represents a phosphinate anion. [Cat+] is defined in claim 1, but is exemplified as an imidazolium cation.

Process for removing metals from hydrocarbons

The invention relates to a process for the removal of mercury from a rnercury-containing hydrocarbon fluid feed (e.g. from an oil or gas field) using specifically selected metallate salts immobilized on a solid support and separating a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed. The metallate salt is of formula [Q+][(Mx+)n(Ly-)m](nx-my), where Mx+ is a metal cation having a charge of x+, Ly- is a ligand having a charge of y-, n is 1, 2 or 3, m is 2, 3, 4, 5, 6, 7 or 8, x is 2, 3, 4, 5 or 6, y is 0, 1, 2 or 3, (nx-my) is a negative number, and [Q+] represents an inorganic cation having a total charge of (my-nx). The metallate salt can be a complex of copper chloride dihydrate with 1-butyl-3-methylimidazolium chloride or choline chloride.

Ionic liquid surface coatings

A water-repellent material comprises a substrate and an ionic liquid coating of formula [(R’O)3Si–Y–X+–R3] [Z]-, wherein X is nitrogen, sulphur, or phosphorus; Y is a divalent aromatic or C1-10 aliphatic linker; [Z]- is an anion; R’ is C1-12 alkyl; and R is independently C1-18 alkyl optionally substituted by halogen and/or C1-16 alkyl or where the R groups combine with [X]+ to form a heterocycle in which one R group may be a bond. The ionic liquid is at least partially crosslinked and chemically bonded to the substrate. Preferably, R’ is methyl or ethyl; R is independently selected from methyl or fluorinated C2-14 alkyl; Y is C2-6 alkylene, dialkanylether, or functionalised polystyrene; and [Z]- is halide, phosphate, sulphate, sulphonate, borate, carboxylate, amide, or imide. The substrate may be a construction material or medical device having surface hydroxyl groups. In another aspect, a dispersion for forming a water-repellent coating comprises a liquid medium and the ionic liquid.

Process for removing metals from hydrocarbons

Process for removing metals from hydrocarbons

Process for removing metals from hydrocarbons

Separation of rare earth matals

process for removing metals of hydrocarbons

RARE EARTH METAL OXIDE PREPARATION

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted; recovering the rare earth metal from the non-aqueous phase; and processing the recovered rare earth metal into a rare earth metal oxide.

Process for removing metals from hydrocarbons

COUNTERCURRENT RARE EARTH SEPARATION PROCESS

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising countercurrently contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted.

SEPARATION OF RARE EARTH METALS

um método para extração de um metal de terras-raras de uma mistura de um ou mais metais de terras-raras, o dito método compreendendo contatar uma solução ácida do metal de terras-raras com uma composição que compreende um líquido iônico para formar uma fase aquosa e uma fase não aquosa para dentro da qual o metal de terras-raras tem sido seletivamente extraído. a method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising contacting an acidic rare earth metal solution with a composition comprising an ionic liquid to form a phase aqueous and a non-aqueous phase into which the rare earth metal has been selectively extracted.

PROCESS FOR REMOVING METALS FROM HYDROCARBONS

PROCESS FOR REMOVING METALS FROM HYDROCARBONS

The present invention relates to a process for the removal of mercury from a mercury-containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula [Cat][M][X] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed. 171.-. (canceled)72. A process for the removal of mercury from a mercury-containing hydrocarbon fluid feed , the process comprising the steps of: {'br': None, 'sup': +', '+', '−, '[Cat][M][X]'}, '(i) contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula [{'sup': '+', '[Cat] represents one or more organic cationic species,'}, {'sup': '+', '[M] represents one or more metal cations selected from transition metal cations having an oxidation state of +2 or greater,'}, {'sup': '−', '[X] represents one or more anionic species; and'}], 'wherein(ii) separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.73. A process according to claim 72 , wherein [M] represents at least one metal cations having an oxidation state of at least +2 selected from first row transition metal cations and molybdenum cations claim 72 , or at least one member of a group consisting of iron cations claim 72 , copper cations claim 72 , molybdenum cations and cobalt cations.74. A process according to claim 73 , wherein [M] represents at least one metal cations selected from Fe claim 73 , Cu claim 73 , Mo claim 73 , and Co.75. A process according to claim 74 , wherein [M] represents Fe or Cu.76. A process according to claim 72 , wherein the mercury concentration in the mercury-containing hydrocarbon fluid feed is in the range of from 1 to 250 claim 72 ,000 parts per billion.77. A process according to claim 72 , wherein the hydrocarbon fluid feed comprises at ...

PROCESS FOR REMOVING METALS FROM HYDROCARBONS

Mercury is removed from a mercury-containing hydrocarbon fluid feed by utilizing ionic liquids. The mercury-containing hydrocarbon fluid feed is contacted with a metallate salt immobilized on a solid support material. A hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed is separated from the ionic liquid. 171.-. (canceled)72. A process for the removal of mercury from a mercury-containing hydrocarbon fluid feed , the process comprising the steps of: {'br': None, 'sup': +', 'x+', 'y−', '(nx−my), 'sub': n', 'm, '[Q][(M)(L)]'}, '(i) contacting the mercury-containing hydrocarbon fluid feed with a metallate salt immobilised on a solid support material, where the metallate salt has the formula{'sup': 'x+', 'claim-text': [{'sup': 'y−', 'each L independently represents a ligand having a charge of y−;'}, 'n is 1, 2 or 3;', 'm is 2, 3, 4, 5, 6, 7 or 8;', 'x is 2, 3, 4, 5 or 6;', 'y is 0, 1, 2 or 3,', '(nx−my) is a negative number, and', {'sup': '+', '[Q] represents one or more inorganic cations having a total charge of (my−nx); and'}], 'wherein: each M independently represents one or more metal cations selected from transition metal cations having a charge of x+;'}(ii) separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.73. A process according to claim 72 , wherein each L is an anionic species independently selected from halides claim 72 , perhalides claim 72 , pseudohalides claim 72 , sulphates claim 72 , sulphites claim 72 , sulfonates claim 72 , sulfonimides claim 72 , phosphates claim 72 , phosphites claim 72 , phosphonates claim 72 , methides claim 72 , borates claim 72 , carboxylates claim 72 , azolates claim 72 , carbonates claim 72 , carbamates claim 72 , thiophosphates claim 72 , thiocarboxylates claim 72 , thiocarbamates claim 72 , thiocarbonates claim 72 , xanthates claim 72 , thiosulfonates claim 72 , thiosulfates claim 72 , ...

SEPARATION OF RARE EARTH METALS

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted. 2. The method of claim 1 , wherein the method comprises recovering the rare earth metal from the non-aqueous phase.3. The method of claim 2 , wherein the rare earth metal is recovered from the non-aqueous phase by stripping with an acidic stripping solution.4. The method of claim 3 , wherein the acidic stripping solution comprises an aqueous hydrochloric acid or nitric acid solution.5. The method of or claim 3 , wherein the acidic stripping solution has a pH of 1 or lower.6. The method of any one of to claim 3 , wherein the acidic stripping solution has a pH of 0 or higher.7. The method of any of to claim 3 , wherein the method comprises extracting a rare earth metal from a mixture of two or more rare earth metals.8. The method of any of to claim 3 , wherein the acidic solution comprises a first and a second rare earth metal claim 3 , and the method comprises:(a) preferentially partitioning the first rare earth metal into the non-aqueous phase.9. The method of claim 8 , wherein the method further comprises claim 8 , in step (a) claim 8 , separating the non-aqueous phase from the acidic solution; and(b) contacting the acidic solution depleted of the first rare earth metal with the composition which comprises an ionic liquid, and optionally recovering the second rare earth metal therefrom.10. The method of claim 9 , wherein the first rare earth metal is recovered from the non-aqueous phase in step (a) claim 9 , and said non-aqueous phase is recycled and used as the composition in step (b).11. The method of any one of to claim 9 , wherein the first rare earth metal is dysprosium claim 9 , and the second rare earth metal is neodymium.12. The ...

Ionic Liquid Preparation

A process for preparing a cationic species [Cat+] for an ionic liquid, said process comprising reacting a reagent (1) H 2 N-L-[Z] with a reagent (2) LG-L 2-EDG, to form a cationic species EDG-L 2-[Z+]-L-N(L 2-EDG) 2, wherein the process is carried out in a sealed reactor at a temperature of at least 100° C. 2. The process of claim 1 , wherein the process is carried out at a temperature of from 100 to 180° C. claim 1 , preferably from 115 to 170° C. claim 1 , and more preferably from 125 to 145° C.3. The process of or claim 1 , wherein the reaction is carried out for a period of from 0.5 to 24 hours claim 1 , preferably from 1 to 12 hours and more preferably from 2 to 6 hours.4. The process of any of to claim 1 , wherein the process is carried out at a pressure of from 105 to 500 kPa claim 1 , preferably from 200 to 400 kPa claim 1 , and more preferably from 250 to 350 kPa.5. The process of any of to claim 1 , wherein reagent (2) is used in an amount of from 1 to 6 molar equivalents claim 1 , preferably from 2 to 4 molar equivalents claim 1 , and more preferably from 2.5 to 3.5 molar equivalents as compared to reagent (1).6. The process of any of to claim 1 , wherein the reaction is carried out in the presence of a base claim 1 , preferably a nitrogen-containing base claim 1 , and more preferably a trialkylamine such as trimethylamine claim 1 , the base preferably being used in an amount of from 1 to 10 molar equivalents claim 1 , preferably from 2 to 8 molar equivalents claim 1 , and more preferably from 3 to 5 molar equivalents as compared to reagent (1).7. The process of any of to claim 1 , wherein the reaction is carried out in the presence of a protic solvent claim 1 , such as trichloromethane.8. The process of any of to claim 1 , wherein Lrepresents:{'sub': 1-10', '1-10, 'a linking group selected from Calkanediyl and Calkenediyl groups;'}{'sub': 1-6', '2-5, 'preferably a linking group selected from Calkanediyl and Calkenediyl groups;'}{'sub': '1-6', 'more ...

Process for removing metals from hydrocarbons

The present invention relates to a process for the removal of mercury from a mercury- containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula[Cat + ][M + ][X - ] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.

Removal of arsenic from flue-gas

The divulged invention concerns a process for the removal of arsenic oxides inprocessexhaust gases, comprising the step of passing the exhaust gases through a supported ionic liquid phase bed,characterized in that the ionic liquid comprises one or more cations from the list consisting of substituted phosphonium, ammonium, imidazolium, pyrrolidinium, and pyridinium, and one or more anions from the list consisting of chloride, bromide, and carboxylate. Compared toa bed of active carbon, theionic liquid soaked active carbon bed according to the invention allows for an estimated doubling of thearsenic adsorptioncapacity of the bed, while also considerably enhancingthe kineticsofadsorption.

Process for removing metals from hydrocarbons

The present invention relates to a process for the removal of mercury from a mercury- containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula[Cat+][M+][X-] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.

Process for removing metals from hydrocarbons

The present invention relates to a process for the removal of mercury from a mercury-containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula [Cat+][M+][X] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.

Removal of arsenic from flue-gas

The divulged invention concerns a process for the removal of arsenic oxides inprocessexhaust gases, comprising the step of passing the exhaust gases through a supported ionic liquid phase bed,characterized in that the ionic liquid comprises one or more cations from the list consisting of substituted phosphonium, ammonium, imidazolium, pyrrolidinium, and pyridinium, and one or more anions from the list consisting of chloride, bromide, and carboxylate. Compared toa bed of active carbon, theionic liquid soaked active carbon bed according to the invention allows for an estimated doubling of thearsenic adsorptioncapacity of the bed, while also considerably enhancingthe kineticsofadsorption.

Ionic liquid surface coatings

The present invention relates to a water repellent material comprising a substrate and an ionic liquid based coating, as well as methods of forming such water repellent materials. In addition, the present invention relates to liquid dispersions comprising ionic liquids for use in forming water repellent coatings.

Process for removing metals from hydrocarbons

The present invention relates to a process for the removal of mercury from a mercury- containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula[Cat+][M+][X-] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.

Rare earth metal oxide preparation

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted; recovering the rare earth metal from the non-aqueous phase; and processing the recovered rare earth metal into a rare earth metal oxide.

Enhanced separation of rare earth metals

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted, wherein the ionic liquid has the formula [Ca++][X′], where [X′] represents a phosphinate anion.

Countercurrent rare earth separation process

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising countercurrently contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non- aqueous phase into which the rare earth metal has been selectively extracted.

Rare earth metal oxide preparation

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted; recovering the rare earth metal from the non-aqueous phase; and processing the recovered rare earth metal into a rare earth metal oxide.

Countercurrent rare earth separation process

A method for extracting a rare earth metal from a mixture of one or more rare earth metals, said method comprising countercurrently contacting an acidic solution of the rare earth metal with a composition which comprises an ionic liquid to form an aqueous phase and a non-aqueous phase into which the rare earth metal has been selectively extracted.

Ionic liquid preparation and their use in selectively isolating rare earth metals

A process for preparing a cationic species [Cat+] for an ionic liquid, said process comprising reacting a reagent (1) H2N-Li-[Z] with a reagent (2) LG-L2-EDG, to form a cationic species EDG-L2-[Z+]-Li-N(L2-EDG)2, wherein the process is carried out in a sealed reactor at a temperature of at least 100 °C. The cationic species may in one embodiment have the following structure: where [Z+] represents a group selected from ammonium, benzimidazolium, benzofuranium, benzothiophenium, benzotriazolium, borolium, cinnolinium, diazabicyclodecenium,diazabicyclononenium, 1,4-diazabicyclo[2.2.2]octanium, diazabicyclo-undecenium, dithiazolium, furanium, guanidinium, imidazolium, indazolium, indolinium, indolium, morpholinium, oxaborolium, oxaphospholium, oxazinium, oxazolium, iso-oxazolium, oxothiazolium, phospholium, phosphonium, phthalazinium, piperazinium, piperidinium, pyranium, pyrazinium, pyrazolium, pyridazinium, pyridinium, pyrimidinium, pyrrolidinium, pyrrolium, quinazolinium, quinolinium, iso-quinolinium, quinoxalinium, quinuclidinium, selenazolium, sulfonium, tetrazolium, thiadiazolium, iso-thiadiazolium, thiazinium, thiazolium, iso-thiazolium, thiophenium, thiuronium, triazinium, triazolium, iso-triazoliurn and uranium groups.

Ionic liquid preparation

A process for preparing a cationic species [Cat + ] for an ionic liquid, said process comprising reacting a reagent (1) H 2 N-L -[Z] with a reagent (2) LG-L 2 -EDG, to form a cationic species EDG-L 2 -[Z + ]-L -N(L 2 -EDG) 2, wherein the process is carried out in a sealed reactor at a temperature of at least 100 °C.

Process for removing metals from hydrocarbon

The present invention relates to a process for the removal of mercury from a mercury-containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula [Cat+][M+] [X-] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.

Process for removing metals from hydrocarbons

The present invention relates to a process for the removal of mercury from a mercury-containing hydrocarbon fluid feed using specifically selected ionic liquids comprising, contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula [Cat + ][M + ][X − ] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed.