Abstract: A method (10) for the processing of lithium containing brines, the method comprising the method steps of: (i) Passing a lithium containing brine (12) to a filtration step (14) to remove sulphates; (ii) Passing a product (16) of step (i) to a first ion exchange step (18) to remove divalent impurities; (iii) Passing a product (20) of step (ii) to a second ion exchange step (22) to remove boron impurities; (iv) Passing a product (24) of step (iii) to an electrolysis step (26) to produce lithium hydroxide (28); and (v) Passing a product (30) of step (iv) to a crystallisation step (32) that in turn provides a lithium hydroxide monohydrate product (34).

Abstract: The present invention relates to a method for producing lithium phosphate, comprising: passing a lithium-containing solution through an aluminum-based adsorbent to adsorb lithium on the aluminum-based adsorbent, passing the distilled water or an aqueous solution having a lower lithium concentration than the lithium-containing solution through the aluminum-based adsorbent on which the lithium is adsorbed to obtain a lithium-containing desorption solution, and putting a phosphorous supplying material in the lithium-containing desorption solution to obtain lithium phosphate.

Abstract: This invention provides a method for efficiently separating magnesium and lithium from salt lake brine, and simultaneously preparing high-purity magnesium oxide and battery-grade lithium carbonate. The detailed processing steps are as follows: (1) adding urea into the brine to dissolve, (2) placing the solution into the reactor for hydrothermal reaction, the magnesium ion will precipitate and enter the solid phase; (3) filtering and drying the production to get the magnesium carbonate solid, while the lithium ion remains in the liquid phase; (4) after directly concentration and precipitation, the battery-grade lithium carbonate can be obtained, while the calcination of solid-phase product results in the high-purity magnesium oxide. In this method, urea is used as the precipitant to separate magnesium and lithium in salt lake without introducing any new metal ion, and the brine solution is not diluted. The solid product is white and fluffy powder, which is easy to filter and separate.

Abstract: A method for preparing battery grade and high purity grade lithium hydroxide and lithium carbonate from high-impurity lithium sources includes steps for preparation of a refined lithium salt solution, preparation of battery grade lithium hydroxide, preparation of high purity grade lithium hydroxide, preparation of high purity grade lithium carbonate and preparation of battery grade lithium carbonate. The system to carry out the preparation includes a refined lithium salt solution preparation subsystem, a battery grade lithium hydroxide preparation subsystem, a high purity grade lithium hydroxide preparation subsystem, a high purity grade lithium carbonate preparation subsystem and a battery grade lithium carbonate preparation subsystem arranged in turn according to production sequence. A combination of physical and chemical treatment methods are used to treat the high-impurity lithium sources having variations in lithium contents, impurity categories, and impurity contents.

Abstract: The invention relates to particulate lithium metal composite materials, stabilized by alloy-forming elements of the third and fourth primary group of the PSE and method for production thereof by reaction of lithium metal with film-forming element precursors of the general formulas (I) or (II): [AR1R2R3R4]Lix (I), or R1R2R3A-O-AR4R5R6 (II), wherein R1R2R3R4R5R6=alkyl (C1-C12), aryl, alkoxy, aryloxy-, or halogen (F, Cl, Br, I), independently of each other; or two groups R represent together a 1,2-diolate (1,2-ethandiolate, for example), a 1,2- or 1,3-dicarboxylate (oxalate or malonate, for example) or a 2-hydroxycarboxylate dianion (lactate or salicylate, for example); the groups R1 to R6 can comprise additional functional groups, such as alkoxy groups; A=boron, aluminum, gallium, indium, thallium, silicon, germanium, tin, lead; x=0 or 1 for B, Al, Ga, In, Tl; x=0 for Si, Ge, Sn, Pb; in the case that x=0 and A=B, Al, Ga, In, Tl, R4 is omitted, or with polymers comprising one or more of the elements B, Al, Ga, I

Abstract: A method and system for rapidly preparing lithium carbonate or concentrated brine using high-temperature steam. The method comprises the steps of: feeding brine into a reactor, heating the brine with high-temperature steam above 200° C. while simultaneously discharging steam produced in the reactor, cooling and condensing the discharged steam in a condenser and collecting the condensate, and stopping the high-temperature steam after the brine is concentrated to a predetermined concentration or after a sufficient amount of lithium carbonate is collected. The system comprises: a reactor provided with a brine inlet, a steam outlet connected to a condenser, a product outlet, and a plurality of steam pipes. The method concerns the direct heating of brine using high-temperature steam, which is effective and efficient, and also produces fresh water. The heating is uniform and rapid, and does not require jackets, heat exchange tubes, mixers and vacuum pumps, vastly simplifying the system.

Abstract: A side stream subsystem can be used to remove impurity species from the recirculating alkali metal chloride solution in certain electrolysis systems. Silicon and/or aluminum species can be removed via precipitation after introducing an alkali metal hydroxide and magnesium chloride in a side stream line in the subsystem. The invention can allow for a substantial reduction in raw material and capital costs.

Abstract: Disclosed is a module system for a microbial fuel cell used in the field of a microbial fuel cell, in which a plurality of unit cells electrically connected to each other in series cannot share an anode part solution. In the module system for the microbial fuel cell, the unit cells are electrically connected to each other in series, so that power is produced in a commercial scale. An anode part is given to each individual cell, so that voltage drop does not occur. The unit cells share an anode part solution together, so that the module system for the microbial fuel cell is simply designed. The module system for the microbial fuel cell is applicable when effectively producing power in the commercial scale.

Abstract: The present invention is concerned with a method of production of acetylene or ethylene. The method has the steps of providing supplies of hydrogen, water, carbon monoxide, carbon dioxide, and methane, respectively, providing a catalyst system having firstly a catalyst selected from group VIII transition metal oxides, and secondly a catalyst support, treating the methane supply with the catalyst system for producing a first reactant, providing a second reactant, and reacting the first reactant with the second reactant for producing an intermediate, wherein the intermediate is calcium carbide (CaC2).

Abstract: An apparatus of producing a carbonate mineral includes a first reaction device including a fluid path along which an ion exchange solution moves; a cation exchange medium disposed in the fluid path, the cation exchange medium containing an alkaline earth metal; a second reaction device accommodating a sodium hydroxide aqueous solution and receiving the ion exchange solution containing an alkaline earth metal ion from the first reaction device; and a carbon dioxide supplying device supplying a carbon dioxide to the second aqueous solution.

Abstract: The process described herein demonstrates a more efficient and effective way to remove certain chemicals from industrial waste water. Specifically, the invention set forth demonstrates a method comprised of at least two steps in which up to 96% of potassium can be removed from an aqueous solution comprising potassium hydroxide.

Abstract: A method for increasing the evaporation rate of an evaporative pond comprising a pond liquor comprising water and at least 1% by weight of sodium carbonate, said evaporative pond being in contact with an ambient air at an ambient air temperature of more than 0° C., the method comprising the following steps: feeding part of the pond liquor to a heat exchanger; heating the pond liquor in the heat exchanger with heat and producing a heated pond liquor; feeding the heated pond liquor into a spraying device at a temperature called hereafter ‘operating temperature’ of at least 10° C. above the ambient air temperature; and spraying the heated pond liquor into an open area of the evaporative pond with the spraying device, so as to evaporate at least part of the water of the pond liquor when sprayed.

Abstract: There are provided methods for preparing lithium carbonate. For example, such methods can comprise reacting an aqueous composition comprising lithium hydroxide with CO2 by sparging the CO2 the said composition, thereby obtaining a precipitate comprising the lithium carbonate. The methods can also comprise inserting at least a portion of the precipitate into a clarifier and obtaining a supernatant comprising lithium bicarbonate and a solid comprising the lithium carbonate, separating the solid from the supernatant; and heating the supernatant at a desired temperature so as to at least partially convert the lithium bicarbonate into lithium carbonate.

Abstract: This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.

Abstract: This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.

Abstract: The present invention relates to a method of manufacturing lithium hydroxide and a method of manufacturing lithium carbonate using the same. The method of manufacturing lithium hydroxide includes: preparation of a lithium phosphate aqueous solution including lithium phosphate particles; addition of a phosphate anion precipitation agent to the lithium phosphate aqueous solution; and precipitating a sparingly soluble phosphate compound through a reaction of cations of the phosphate anion precipitation agent with anions of the lithium phosphate.

Abstract: A method and arrangement for recovering lithium carbonate from a raw material containing lithium, which method comprises pulping (1) the raw material containing lithium in the presence of water and sodium carbonate for producing a slurry containing lithium from the raw material containing lithium. After pulping the lithium-containing slurry is leached (2) for dissolving the lithium in the solution thus producing a solution containing lithium carbonate. After pulping and leaching the method comprises carbonating (3) the solution containing lithium carbonate by using carbon dioxide under atmospheric conditions for producing a solution containing lithium bicarbonate and separating (4) the solids form the solution. The solution containing lithium bicarbonate is purified (5) to produce a purified solution containing lithium bicarbonate, and recovering by crystallising (6) lithium carbonate from the purified lithium bicarbonate-containing solution.

Abstract: The present invention relates to a method for producing lithium carbonate, the method including: mixing ammonia and carbon dioxide gas (carbonate gas) with an aqueous solution containing lithium chloride to conduct a carbonation reaction; and thereafter, recovering a produced solid by solid-liquid separation, and also relates to a method for producing high purity lithium carbonate.

Abstract: A process of and system for sequestering carbon (CO2) produced in coal and gas burning hydrogen production plants, resulting in the production of hydrogen at current market prices or less without carbon emission.

Abstract: The present invention relates to a highly pure, anhydrous sodium carbonate having a low pore content for use in pharmaceutical formulations and in the foods industry. Furthermore, a novel process for the preparation of this sodium carbonate is provided.

Abstract: A process for producing sodium bicarbonate from a sodium carbonate bearing stream (A) comprising sodium carbonate and an alkaline metal salt impurity at a concentration Ci(A), comprising: a) mixing the stream (A) with part of a stream (B), b) bicarbonating the resulting mixed stream with a gas comprising CO2 to produce an aqueous suspension comprising sodium bicarbonate crystals (F), c) separating the sodium bicarbonate crystals (F) from the aqueous liquor (G), d) partly debicarbonating at least part of (G) and removing part of the water of (G) to obtain the stream (B) with the salt impurity at a concentration Cf(B), e) recycling part of the stream (B) to step a) so that the ratio of the concentrations Cf(B)/Ci(A) of the impurity is at least: 1.4, and f) removing the remainder (I) of the stream (B) or the remainder (J) of the liquor (G) to be further processed.

Abstract: A process for the production of sodium carbonate and sodium bicarbonate out of trona, comprising crushing trona ore and dissolving it in a leaching tank containing a solution comprising sodium carbonate and sodium bicarbonate, and an additive selected from the group consisting of: phosphates, phospholipids, carboxylates, carboxilic acids, and combinations thereof, saturated in sodium bicarbonate, in order to produce solid particles suspended in a production solution comprising sodium carbonate, the solid particles containing insoluble impurities and at least 65% by weight of sodium bicarbonate. The solid particles are separated from the production solution containing sodium carbonate. At least part of the production solution containing sodium carbonate is taken out of the leaching tank.

Abstract: The invention provides a food decay odor controller which includes a mercaptan remover.

Abstract: A method for increasing the evaporation rate of an evaporative pond comprising a pond liquor comprising water and at least 1% by weight of sodium carbonate, said evaporative pond being in contact with an ambient air at an ambient air temperature of more than 0° C., the method comprising the following steps: feeding part of the pond liquor to a heat exchanger; heating the pond liquor in the heat exchanger with heat and producing a heated pond liquor; feeding the heated pond liquor into a spraying device at a temperature called hereafter ‘operating temperature’ of at least 10° C. above the ambient air temperature; and spraying the heated pond liquor into an open area of the evaporative pond with the spraying device, so as to evaporate at least part of the water of the pond liquor when sprayed.

Abstract: A dry material is synthesized by alkali metal (Li, Na and K) promoted calcium aluminate carbonates to obtain a CO2 sorbent used at a temperature higher than 600 Celsius degrees (° C.). The key composition of the sorbents is 52˜69% of CaO, which is beneficial to capture CO2 at 400˜800° C. A breakthrough result is achieved by using this sintering-resistant sorbent, which includes the features of 50% initial carbonation capacity and 20 folds CO2 capturing performance maintained after 40˜60 hours. Besides, alkali bearing material provides good velocity in CO2 capturing/releasing cycles; for example, by using Li and K series sorbents, 40 hours is required for 40 cycles only.

Abstract: This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.

Abstract: Peroxo-carbonates derived from molten alkali and/or Group II metal salts, particularly carbonate salts are used as catalysts in oxidation and epoxidation reactions. Transition metal compounds may be included to improve the selectivity of the reactions.

Abstract: It is possible to produce battery grade metallic lithium from naturally occurring or industrial brine by a process comprising the following steps: (i) precipitating magnesium with calcium hydroxide; (ii) removal of boron via extraction of solvents; (iii) precipitation of lithium with sodium carbonate; (iv) transformation of lithium carbonate to bicarbonate of lithium with carbonic acid; (v) decomposition of bicarbonate of lithium into high purity lithium carbonate as a result of heating of the solution. Re-precipitation of lithium carbonate by the formation of bicarbonate of lithium allows for the removal of the majority of contaminants which co-purify with lithium carbonate and yield battery grade highly purified lithium carbonate.

Abstract: The present disclosure provides a method of preparing highly pure lithium carbonate from brine. The method includes adding an adsorbent to the brine, from which the magnesium ions Mg2+ have been removed, to adsorb lithium ions Li+ to the adsorbent, followed by providing the adsorbent having the lithium ions Li+ adsorbed thereto to a strong acid solution to desorb the lithium ions Li+ from the adsorbent; enriching the strong acid solution in which the lithium ions Li+ are desorbed from the adsorbent; and obtaining lithium carbonate Li2CO3 through chemical reaction between the lithium ions Li+ in the enriched solution and a carbonate precursor.

Abstract: A method of treating waste liquors which comprise organic compounds, in order to recover chemical compounds or to recycle chemicals. In the present method, the sodium-based waste liquor, which comprises organic compounds that are sourced from lignocellulose, is subjected to partial wet oxidation, in order to produce organic sodium salts, in which case the partial wet oxidation is carried out in conditions where at least part of the lignin is simultaneously precipitated. The precipitated filtrate or lignin is subjected to further processing. Most suitably, the organic sodium salts, such as Na acetate, which are generated in the partial oxidation of the waste liquor, are also subjected to further processing, in which case it is possible, from the lignin and the organic sodium salts, to efficiently produce compounds which as such are already of sufficient quality as chemicals, or which as gases are suitable for further processing, for instance for production of fuels.

Abstract: A process for reducing the amount of magnesium in a lithium-containing brine by adding an aqueous solution of KCl to the brine to precipitate at least some of the magnesium as carnallite salt is disclosed. Lithium salts prepared using this magnesium removal process are also disclosed.

Abstract: There is disclosed herein a process for recovering lithium from an impure natural or industrial brine, the process comprising adjusting the pH of a feed brine containing lithium to a value of no less than 11.3 and separating the waste solids and a solution containing lithium values. The solution may be further concentrated and treated to obtain lithium carbonate and a lithium chloride solution suitable for obtaining electrolytic grade lithium chloride.

Abstract: Disclosed is a method for preparing cerium carbonate that can improve yield or productivity of cerium carbonate and enables preparation of cerium carbonate having uniform diameter, cerium carbonate, and a method for preparing cerium oxide. The method for preparing cerium carbonate comprises mixing the cerium precursor with urea; and, elevating the temperature of the mixture to 50° C. or more in the absence of a separate reaction medium to react the cerium precursor with urea in the presence of a polymer dispersant.

Abstract: The invention provides a novel process for the synthesis of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one, the process comprising of reacting the salicylic acid with salicylamide in the presence of p-toluenesulfonyl chloride, base and solvent. The use of 2-(2-hydroxyphenyl)-benz[1,3]oxazin-4-one in the preparation of Deferasirox is also disclosed in the invention.

Abstract: Administering a therapeutically effective dose of lithium ions mitigates the side effects of a psychoactive substance such as a cannabinoid. The therapeutically effective dose of lithium ions includes greater than 4 milligrams of lithium and less than 170 milligrams of lithium, or includes between 8 and 32 milligrams of lithium ions per milligram of the psychoactive substance. The therapeutically effective dose of lithium ions is administered using lithium carbonate, lithium citrate, lithium chloride, lithium orotate, lithium aspartate, or analogs thereof using a delivery vehicle selected from pills, tablets, capsules, gelcaps, liquids, syrups, injectable liquids, powders, or foods and administered prior to, with, or after administration of the psychoactive substance. The psychoactive substance includes one or more of anandamide, 2-arachidonoyl glycerol, 2-arachidonoyl glycerol ether, tetrahydrocannabinol, cannabinol, cannabidiol, or analogs thereof and may be administered using the delivery vehicle.

Abstract: The invention enables processing waste sludge after galvanic treatment of metals, and particularly recycling spent pickling acids after pickling. Provided is an environmentally friendly process, which yields acids for reuse, and pure nano-sized iron pigments as a side product.

Abstract: Process for obtaining lithium carbonate directly from the mineral containing silicium, aluminium, lithium and other metal oxides without the need to dissolve previously all oxides in sulphuric acid or alkaline hydroxides at high temperatures and pressures, by using carbon dioxide and water at supercritical or near supercritical conditions acting directly on the fine powder of the mineral.

Abstract: In some embodiments, the invention provides systems and methods for removing carbon dioxide and/or additional components of waste gas streams, comprising contacting the waste gas stream with an aqueous solution, removing carbon dioxide and/or additional components from the waste gas stream, and containing the carbon dioxide and/or additional components, in one form or another, in a composition. In some embodiments, the composition is a precipitation material comprising carbonates, bicarbonates, or carbonates and bicarbonates. In some embodiments, the composition further comprises carbonate and/or bicarbonate co-products resulting from co-processing SOx, NOx, particulate matter, and/or certain metals. Additional waste streams such as liquid, solid, or multiphasic waste streams may be processed as well.

Abstract: A solution mining method for recovering alkali values from a cavity of an underground ore formation comprising trona and/or wegscheiderite; a manufacturing process using such method to make sodium-based product(s); and a sodium-based product obtained therefrom. The method comprises: an ore dissolution phase (a) in which the incongruent double-salt in trona and/or wegscheiderite is dissolved from an ore face in a first solvent, and a cavity cleaning phase (b) in which sodium bicarbonate deposited on the ore face during the dissolution phase (a) is dissolved into a second aqueous solvent having a higher pH, hydroxide content, and/or temperature and is partly or completely converted in situ to sodium carbonate. The method further comprises withdrawing a liquor resulting from either phase to the ground surface, optionally recycling some liquor to the cavity; and passing some liquor through a crystallizer, a reactor, and/or an electrodialyser, to form at least one sodium-based product which is recovered.

Abstract: A process for producing sodium bicarbonate from a sodium carbonate bearing stream (A) comprising at least 2% sodium chloride and/or sodium sulfate by weight, a part of such stream (A) being generated by a sodium carbonate crystallizer, comprising: a) mixing the stream (A) with part of a stream (B) to produce a stream (C); b) bicarbonating the stream (C) with a gas (D) comprising CO2 to produce an aqueous suspension (E) containing crystals (F) comprising sodium bicarbonate crystals; c) separating the aqueous suspension (E) to obtain crystals (F) comprising sodium bicarbonate crystals and an aqueous mother liquor (G); d) partly debicarbonating such liquor (G) and removing part of the water to obtain the stream (B) and an optional gas (H); e) recycling at least part of the stream (B) to step a); and f) removing the remainder of the stream (B) or part of the aqueous mother liquor (G) to be further processed.

Abstract: The present invention provides the use of lithium compounds in micro-doses for the treatment of Alzheimer's disease. The results show that the administration of lithium in micro-doses provides a known not-toxic alternative to the elderly for slowing or stopping the progress of the disease and the progressive cognitive deterioration.

Abstract: The invention generally relates to methods of selectively removing lithium from various liquids, methods of producing high purity lithium carbonate, methods of producing high purity lithium hydroxide, and methods of regenerating resin.

Abstract: The present invention provides a method for carbon dioxide fixation, which comprises extracting an alkali metal component from a raw slag in a first reactor by using an ammonium salt solvent to produce a solution containing the extracted alkali metal component and then reacting the solution with carbon dioxide in a second reactor to produce a carbonate precipitate. With this method, an alkali metal component can be extracted and a carbonate precipitate can be obtained in a simpler and cost-effective manner, among others.

Abstract: We have described herein a method and associated apparatus that can halt global warming with significant economic benefits. They include (1), re-scrub half the carbon dioxide emitted from calcining baking soda into soda ash to produce twice as much soda ash and twice as much ammonium chloride as comparing with the standard Solvay ammonia soda ash process; Use the ammonium chloride as sugarcane fertilizer producing fuel ethanol, and bagasse, a photosynthesized bio-fuel from carbon dioxide already presented in the earth atmosphere for power generation, and (2), expand the sugarcane plantation areas into desert oasis using desert heat to produce distilled water for irrigation, pumped by solar heated hydraulic press pumps to supplement insufficient rain forest resources on earth's continents to accelerate reaching “carbon neutral” on capture annually twenty five billion tons of anthropogenic carbon dioxide from earth atmosphere economically.

Abstract: The present disclosure provides a method of preparing highly pure lithium carbonate from brine. The method includes adding an adsorbent to the brine, from which the magnesium ions Mg2+ have been removed, to adsorb lithium ions Li+ to the adsorbent, followed by providing the adsorbent having the lithium ions Li+ adsorbed thereto to a strong acid solution to desorb the lithium ions Li+ from the adsorbent; enriching the strong acid solution in which the lithium ions Li+ are desorbed from the adsorbent; and obtaining lithium carbonate Li2CO3 through chemical reaction between the lithium ions Li+ in the enriched solution and a carbonate precursor.

Abstract: An object of the present invention is to provide a high-purity aromatic methyl alcohol compound having reduced a bis(arylmethyl)ether compound as a side product mixed thereinto and a high-purity aromatic methyl alcohol composition having excellent preservation stability and methods for producing them. The object of the present invention is achieved by a method for producing a high-purity aromatic methyl alcohol compound, which comprises obtaining a high-purity aromatic methyl alcohol compound in high yield from an aromatic methyl alcohol-containing crude product by subjecting the crude product to distillation in the presence of an anti-decomposition agent. Further, the object for the preservation stability is achieved by producing a high-purity aromatic methyl alcohol composition using the obtained high-purity aromatic methyl alcohol compound.

Abstract: A method of preparing basic metal carbonate selected from the group consisting of zinc carbonate, nickel carbonate, silver carbonate, cobalt carbonate, tin carbonate, lead carbonate, manganese carbonate, lithium carbonate, sodium carbonate, and potassium carbonate from metals comprising: contacting the metal with an aqueous solution comprising an amine, carbonic acid, and oxygen under conditions where the metal is converted into basic metal carbonate; and recovering the basic metal carbonate.

Abstract: Systems and methods of producing chemical compounds are disclosed. An example chemical production system includes a combustion chamber having intake ports for entry of a gas mixture. An igniter ignites the gas mixture in the intake chamber to facilitate a reaction at a high temperature and high pressure. A nozzle restricts exit of the ignited gas mixture from the combustion chamber. An expansion chamber cools the ignited gas. The expansion chamber has an exhaust where the cooled gas exits the expansion chamber. A chemical compound product is formed in the expansion chamber.

Abstract: The present invention relates to a method for producing lithium carbonate, the method including: mixing ammonia and carbon dioxide gas (carbonate gas) with an aqueous solution containing lithium chloride to conduct a carbonation reaction; and thereafter, recovering a produced solid by solid-liquid separation, and also relates to a method for producing high purity lithium carbonate.

Abstract: Methods, systems, apparatuses and compositions for extracting selected gases from a gas stream are provided. In some embodiments the invention involve a process of bringing a gas stream in contact with a primary sorbent, releasing a selected gas from the primary sorbent to create a selected gas-enriched gas mixture, and bringing the selected gas-enriched gas mixture in contact with an aqueous solution. The aqueous solution absorbs the selected gas from the selected gas-enriched gas mixture. In some embodiments, the selected gas is carbon dioxide.