| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423421000 | Alkali metal containing (Li, Na, K, Rb, or Cs) | 30 |
| 20110123427 | PRODUCTION OF LITHIUM COMPOUNDS DIRECTLY FROM LITHIUM CONTAINING BRINES - Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine are also disclosed. | 05-26-2011 |
| 20110150744 | Method for Drying Potash - A process for drying potash in which wet potash is introduced into a vertical gas suspension column, in which it is entrained in a heated gas and dried from an initial moisture content of from about 3 to about 6 wt. percent to about 0.01 to about 0.1 wt. percent. | 06-23-2011 |
| 20110305624 | METHOD FOR PRODUCTION OF LITHIUM CARBONATE - The present invention relates to a process for producing lithium carbonate from brine by precipitating calcium ions by reacting brine with schoenite to yield carnallite, Gypsum, and lithium, wherein the brine comprises of salts of one or more of sodium, magnesium, and potassium chloride and then reacting that lithium chloride solution with sodium carbonate to give lithium carbonate. | 12-15-2011 |
| 20110318252 | Process for producing gas from mineral ore - Process for producing a gas from a mineral ore, and in particular from trona ore, said gas having a carbon dioxide concentration of more than 25 volume percents expressed on dry gas, and a quantity of volatile organic compounds of less than 700 mg per kilogram of generated carbon dioxide. The process comprises the steps of crushing the trona ore, introducing crushed trona in a rotary calcining drum with indirect heating, calcining the crushed trona in the calcining device, collecting the calcined trona from calcining device and collecting the gas generated by the trona ore calcination from calcining device in order to constitute the produced gas. | 12-29-2011 |
| 20120141352 | SYSTEM AND METHOD FOR SEPARATING HIGH MOLECULAR WEIGHT GASES FROM A COMBUSTION SOURCE - High molecular weight (HMW) gases are separated from an exhaust gas of a combustion source using a blower and an interior vent within the exhaust stack. The interior vent includes a vent wall having a top portion attached to the interior surface of the exhaust stack along the entire inner perimeter of the exhaust stack and a lower portion that extends downward into the exhaust stack to form an annular space or gap between the vent wall and the interior surface of the exhaust stack, and at least one opening in the interior surface of the exhaust stack between the top and bottom portions of the vent wall. The blower creates a tangential flow of the exhaust gas with sufficient centrifugal force to concentrate substantially all of the HMW gases along the inner surface of the exhaust stack. A transfer pipe removes the HMW gases from the interior vent. | 06-07-2012 |
| 20120213689 | Selective Salt Recovery from - A process is provided for recovering sodium chloride crystals and sodium carbonate decahydrate crystals from a concentrated brine that results from a gas mining operation where gas and produced water is recovered and the produced water constitutes a brine. An initial pre-concentration process is carried out where the brine is concentrated and in the process carbon dioxide is removed from the brine and at least some sodium bicarbonate is converted to sodium carbonate. In one process, the concentrated brine is directed to a sodium chloride crystallizer where the brine is heated and further concentrated to form sodium chloride crystals which are separated from the brine to yield a product and wherein the resulting brine is termed a first mother liquor. The first mother liquor is then directed to a sodium carbonate decahydrate crystallizer where the first mother liquor is cooled and concentrated resulting in the formation of sodium carbonate decahydrate crystals and a second mother liquor. The second mother liquor is split into two streams where one stream is directed back to the sodium chloride crystallizer while the other stream is wasted or further treated. | 08-23-2012 |
| 20130011322 | Method and apparatus on halting global warming - 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. | 01-10-2013 |
| 20140178288 | Method for increasing evaporation rate of an evaporative pond using solar energy - 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. | 06-26-2014 |
| 20150044124 | METHOD FOR RECOVERING LITHIUM CARBONATE - A method and arrangement for recovering lithium carbonate from a raw material containing lithium, which method comprises pulping ( | 02-12-2015 |
| 20150139886 | PROCESSES FOR PREPARING LITHIUM CARBONATE - There are provided methods for preparing lithium carbonate. For example, such methods can comprise reacting an aqueous composition comprising lithium hydroxide with CO | 05-21-2015 |
| 423422000 | Hydrogen containing (bicarbonate) | 13 |
| 20090016949 | HIGH PURITY SODIUM HYDROGENCARBONATE CRYSTAL PARTICLES AND PROCESS FOR PRODUCING THE SAME - Sodium hydrogencarbonate crystal particles excellent in anti-caking property and anti-thermal decomposition property, and its production process, are provided. | 01-15-2009 |
| 20100290976 | Method of producing sodium carbonate decahydrate - A method of producing crystals of crystallizable mineral salt comprises introducing an effluent comprising a dissolved crystallizable mineral salt at a temperature higher than the mineral salt crystallization temperature to a crystallization pond area to provide a pond solution; cooling the pond solution to provide cooling crystallization promoting conditions effective to form a crystalline mineral salt deposit; stopping the flow of the effluent; draining remaining spent liquor to a liquor pond area; and recovering the deposit. Cooling the pond solution may comprise exposure to cool ambient temperatures which are lower than the crystallization temperature. Preferably, the mineral salt includes or is sodium carbonate decahydrate; the pond solution comprises less than 10% NaCl; and/or the decahydrate deposit is sent or recycled to a soda ash plant. The deposit thus formed by cooling crystallization has a higher purity, lower hardness, and/or lower density than a deposit formed by evaporative crystallization. | 11-18-2010 |
| 20110318253 | METHOD FOR PURIFYING LITHIUM BICARBONATE - The invention relates to a method for purifying impure lithium bicarbonate by means of a cation exchange resin. In addition to solution purification by ion exchange, the treatment stages include the regeneration of impurity metals bound to the resin. Regeneration consists of washing the resin with water, elution with acid solution, washing with water, neutralisation with alkali solution and washing with water. It is characteristic of the method that neutralisation is performed with sodium hydroxide solution. | 12-29-2011 |
| 20130028828 | Conversion of gaseous carbon dioxide into aqueous alkaline and/or alkaline earth bicarbonate solutions - A material with cationic exchanger properties is introduced into aqueous media, where the equilibriums of carbon dioxide dissolution take place. A cationic exchanger material x/nM | 01-31-2013 |
| 20140072502 | FINE BUBBLE GENERATING APPARATUS, METHOD FOR GENERATING FINE BUBBLES, AND METHOD FOR GAS-LIQUID REACTION USING SAME - The present invention addresses the problem of: providing an apparatus and method for generating fine bubbles in a plurality of processing surfaces in a plurality of processing members disposed in opposition so as to be capable of being brought together and moved apart, at least one being capable of relative rotation with respect to the other; as well as providing a method for reacting fine bubbles using a method for generating fine bubbles. Provided are: a plurality of processing members disposed in opposition so as to be capable of being brought together and moved apart, at least one being capable of relative rotation with respect to the other; processing surfaces provided in mutually opposed positions in the respective processing members; and at least two independent flow path communicating with the space between the processing surfaces. A gas and a liquid representing a fluid to be processed are introduced into the space between the processing surfaces from the at least two independent flow path, and the fluid is processed. The liquid is introduced from one flow path of at least two independent flow path, and the gas is introduced through the other flow path, whereby bubbles are generated between the processing surfaces. | 03-13-2014 |
| 20140348738 | Process for preparing sodium bicarbonate particles - A process for preparing sodium bicarbonate particles, comprising the steps of: (a) adding at least one alkali metal carbonate to an aqueous solution in order to form an aqueous composition; wherein the alkali metal carbonate comprises sodium carbonate and wherein the aqueous composition comprises at least one polycarboxylic acid and/or the salts thereof, in an amount of at least 200 ppm based on the weight of the aqueous composition; and (b) precipitating solid particles comprising sodium bicarbonate crystals and separating said sodium bicarbonate particles from the aqueous composition, in order to obtain sodium bicarbonate particles and an aqueous mother liquor. | 11-27-2014 |
| 20160176721 | METHODS OF PRODUCING ALKALI METAL CARBONATES, AND SYSTEMS FOR PRACTICING THE SAME | 06-23-2016 |
| 423423000 | By carbonating ammoniated brine | 1 |
| 20100196244 | METHOD AND DEVICE FOR BINDING GASEOUS CO2 TO SEA WATER FOR THE FLUE GAS TREATMENT WITH SODIUM CARBONATE COMPOUNDS - Method for binding gaseous CO | 08-05-2010 |
| 423424000 | By reacting halogen containing compound | 3 |
| 20110217227 | COMBINED SOLID WASTE, CARBON DIOXIDE QUICKLIME SPARGING, BRINE WATER, AND REVERSE OSMOSIS/ION EXCHANGE PROCESSES FOR THE PRODUCTION OF SODA CHEMICALS - The proposed invention uses a classical chemical equation where carbon dioxide CO | 09-08-2011 |
| 20120093708 | DEVICE AND METHOD FOR EXTRACTING AND SEPARATING SODIUM AND POTASSIUM - Provided is an extracting and separating device which includes: an ash reactor | 04-19-2012 |
| 20140286850 | METHOD OF MAKING SODIUM CARBONATE AND/OR SODIUM BICARBONATE - A method of making sodium carbonate and/or sodium bicarbonate is disclosed in which carbon dioxide gas is reacted with an aqueous solution sodium hydroxide solution in the presence of a compound of the formula (I): Na | 09-25-2014 |
| 423425000 | Sesquicarbonate | 2 |
| 20120275987 | SYSTEMS AND METHODS FOR CARBON SEQUESTRATION OF SYNTHESIS GAS - Provided are methods for sequestering carbon dioxide from a synthesis gas to provide a gaseous and an aqueous product. A recovery method and system for combusting the gaseous product and utilizing the aqueous product is provided. Methods and systems are described for utilizing the aqueous product in an electrochemical or a precipitation reaction. Compositions of sequestered carbon dioxide are provided. | 11-01-2012 |
| 20140328743 | REMOVING CARBON DIOXIDE FROM WASTE STREAMS THROUGH CO-GENERATION OF CARBONATE AND/OR BICARBONATE MINERALS - All of the methods and devices disclosed and claimed herein can be made and executed without undue experimentation in light of the present disclosure. While the methods and devices of this invention have been described in terms of preferred embodiments, it will be apparent to those of skill in the art that variations may be applied to the methods and devices and in the steps or in the sequence of steps of the method described herein without departing from the concept, spirit, and scope of the invention. More specifically, it will be apparent that certain compositions which are chemically related may be substituted for the compositions described herein while the same or similar results would be achieved. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope, and concept of the invention as defined by the appended claims. | 11-06-2014 |
| 423427000 | By reacting a bicarbonate | 3 |
| 20100284891 | Process for producing sodium bicarbonate - In a process to produce sodium carbonate,
| 11-11-2010 |
| 20130216467 | METHOD OF PRODUCING SODA ASH AND CALCIUM CHLORIDE - The method of producing soda ash and calcium chloride provides an environmentally friendly method of producing soda ash and calcium chloride without the production of waste and hazardous byproducts. The method of producing soda ash and calcium chloride is initiated with a volume of brine, which is ammoniated with gaseous ammonia to form ammoniated brine. Limestone is heated to produce calcium oxide and carbon dioxide. The ammoniated brine is reacted with the carbon dioxide to produce sodium bicarbonate, ammonium chloride and a brine effluent. The sodium bicarbonate is then calcined and decomposed to produce soda ash and gaseous carbon dioxide. The calcium oxide is reacted with the ammonium chloride to produce calcium chloride, water and ammonia. The ammonia is recycled to be used in the initial step of ammoniating the brine. The water and the brine effluent are also recycled and used to provide the brine in the initial step. | 08-22-2013 |
| 20140199228 | INTEGRATED CARBON DIOXIDE REMOVAL AND AMMONIA-SODA PROCESS - The present invention relates to an method for producing sodium carbonate by integration of a carbon dioxide capture process with an ammonia-soda process. The present invention moreover relates to a plant for producing sodium carbonate comprising a carbon dioxide capture system and an ammonia-soda system. Uses of fluid streams generated in a carbon dioxide capture process in an ammonia-soda process is moreover disclosed. | 07-17-2014 |
| 423428000 | By reacting sulfur containing compound | 1 |
| 20160194208 | METHODS AND SYSTEMS USING ELECTROCHEMICAL CELLS FOR PROCESSING METAL SULFATE COMPOUNDS FROM MINE WASTE AND SEQUESTERING CO2 | 07-07-2016 |
| 423429000 | By reacting halogen containing compound | 3 |
| 20090041651 | Process for Jointly Obtaining a Chlorine Derivative and Crystals of Sodium Carbonate - An aqueous solution of sodium chloride is electrolysed in a cell ( | 02-12-2009 |
| 20130064752 | METHOD FOR FIXING CARBON DIOXIDE - 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. | 03-14-2013 |
| 20130302237 | Process to produce lithium carbonate direcly from the alumino silicate mineral - 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. | 11-14-2013 |
