| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Method of treating natural alkaline salts of secondary and tertiary origin | US71950824 | 1924-06-12 | US1660561A | 1928-02-28 | ARTHUR LAMBERT |
| 62 | Method of conducting the ammonia-soda process | US36508720 | 1920-03-11 | US1423510A | 1922-07-25 | ARNOLD EDWARD E; CLAIR JR PALMER ST |
| 63 | Ammonia-soda process | US40440320 | 1920-08-18 | US1384141A | 1921-07-12 | MACMAHON JAMES H |
| 64 | Process of manufacturing soda | US32757419 | 1919-09-30 | US1359097A | 1920-11-16 | TORANOSKE NISHIGAWA |
| 65 | Method of and apparatus for conveying and absorbing gases. | US15184217 | 1917-03-01 | US1282799A | 1918-10-29 | FRASCH HANS A |
| 66 | Process for recovering the constituents of alunite in technically useful forms. | US19554417 | 1917-10-09 | US1274145A | 1918-07-30 | DETWILLER HENRY J |
| 67 | Production of sodium hydroxid. | US1073315 | 1915-02-26 | US1249314A | 1917-12-11 | BRADLEY CHARLES S |
| 68 | Method of making potassium-magnesium carbonate. | US1900034659 | 1900-10-27 | US689907A | 1901-12-31 | PRECHT HEINRICH |
| 69 | Clovis kkab | US287551D | US287551A | 1883-10-30 | ||
| 70 | William j | US227561D | US227561A | 1880-05-11 | ||
| 71 | PROCESS FOR PRODUCING SODIUM CARBONATE/BICARBONATE | US15739350 | 2016-07-01 | US20180169567A1 | 2018-06-21 | Eric VANDERVORST; David Jean Lucien SAVARY; Gérard DUPONT; Hugo WALRAVENS; Eric Pierre DUBOIS; Jean-Paul COQUEREL; Perrine DAVOINE; Karine CAVALIER; Ines HURTADO DOMINGEZ; Salvador ASENSIO |
| Process wherein a low CO2 content process gas generated by an ammonia-soda process unit or a refined sodium bicarbonate unit is enriched by using a Temperature Swing Adsorption CO2 concentration module into a CO2 enriched gas whose CO2 content is increased by at least +10% by volume on dry gas basis relative to the process gas, and which is subsequently recycled to the ammonia-soda process unit or optionally to the refined sodium bicarbonate unit, in order: to produce sodium carbonate, or sodium bicarbonate, or to carbonate at least part of effluent from the unit for producing sodium carbonate or bicarbonate. The TSA CO2 concentration module comprises a stator and a rotor connected to the stator and rotatable relatively to the stator about a rotational axis, the rotor comprising a plurality of sectors, each sector containing a separation device to separate at least part of the CO2 from the process gas which is led into the separation device, and each sector being fluidically connected with at least one rotary active valve. | ||||||
| 72 | PROCESS FOR PRODUCING SODIUM CARBONATE/BICARBONATE | US15538774 | 2015-12-22 | US20180050916A1 | 2018-02-22 | Eric VANDERVORST; David Jean Lucien SAVARY; Gérard DUPONT; Hugo WALRAVENS; Eric DUBOIS; Jean-Paul COQUEREL; Perrine DAVOINE; Karine CAVALIER; Ines HURTADO DOMINGEZ; Salvador ASENSIO |
| Process for producing sodium carbonate with ammonia and/or for producing refined sodium bicarbonate, wherein: a low CO2 content gas generated by a unit for producing sodium carbonate with ammonia and/or generated by a unit for producing refined sodium bicarbonate is enriched into a CO2-enriched gas by using a CO2 concentration module, such as an amine-type or ammonia or PSA or TSA or cryogenic distillation or membrane-type CO2 concentration module, and said CO2-enriched gas has an increased CO2 content of: +10% (at least) to +90% (at most), by volume on a dry gas basis relative to the CO2 concentration of the low content gas, and the CO2-enriched gas is subsequently recycled to the unit for producing sodium carbonate with ammonia and/or to the unit for producing refined sodium bicarbonate, to produce sodium carbonate, or sodium bicarbonate, or to carbonate at least one part of effluent from the unit for producing sodium carbonate and/or from the unit for producing sodium bicarbonate. | ||||||
| 73 | Method of producing soda ash and calcium chloride | US13651534 | 2012-10-15 | US08591852B2 | 2013-11-26 | Basel Fathi Abu-Sharkh |
| 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. | ||||||
| 74 | METHOD OF PRODUCING SODA ASH AND CALCIUM CHLORIDE | US13651534 | 2012-10-15 | US20130039824A1 | 2013-02-14 | BASEL FATHI ABU-SHARKH |
| 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. | ||||||
| 75 | FOAMING AGENTS FOR THERMOPLASTIC RESINS AND METHOD OF PREPARING SAME | US12819571 | 2010-06-21 | US20110112207A1 | 2011-05-12 | Art Tinson; Salvatore D'Uva; Jianzhong Hu; John Lefas |
| Ultra-fine sodium bicarbonate powder (mean particle size less than 5 microns) is produced by the mixing and reaction under agitation at control temperatures of solutions of ammonium bicarbonate and sodium chloride. Precipitated sodium bicarbonate is separated by filtration as a slurry which is dried to produce ultra-fine sodium bicarbonate. Ultra-fine sodium bicarbonate produced by this method also exhibits a narrow particle size distribution which is advantageous in blowing agents for thermoplastic resins, to produce a foamed resin with small cells of a narrow size distribution. | ||||||
| 76 | Sustainable Carbon Capture and Sequestration System and Methods | US12760737 | 2010-04-15 | US20100218507A1 | 2010-09-02 | Adam Cherson |
| An apparatus and method for capturing, separating, transforming, and sequestering carbon wherein said apparatus dissociates a carbon containing feedstock material and reacts the resulting gases with a system-produced brine to create four products: 1) a sodium based carbonate or bicarbonate, 2) ammonium chloride, 3) fresh water, and 4) a multi-purpose building material. End product (1) may be sequestered in any of several ways for durable and long term storage. End product (2) may be used for nutrient enrichment. End products (3) and (4) may be distributed to human populations. | ||||||
| 77 | Method for recovering purified sodium bicarbonate and ammonium sulfate | US10361687 | 2003-02-11 | US20040156775A1 | 2004-08-12 | Joe Bichel; Stephen Schaaf |
| A process for recovering sodium bicarbonate and ammonium sulfate from a sodium sulfate solution. The sodium sulfate solution can be pure or contain other compounds such as sodium sulfite, carbonate, chloride, fluoride, nitrate and nitrite as would be the case if the sodium sulfate solution were derived from a sodium bicarbonate flue gas purification process. Carbon dioxide and ammonia gases or solid ammonium bicarbonate are added to the sodium sulfate solution to precipitate sodium bicarbonate which is removed from solution. The remaining solution is treated in a unique series of precipitation steps in which reactants are first recycled back to the sodium bicarbonate crystallizer and then the amount of sodium in the solution is adjusted to an amount that allows high grade ammonium sulfate fertilizer product to be produced. The process is accomplished using evaporation and precipitation unit operations in a unique sequence that results in 100% conversion of the sodium salt feed stock to sodium bicarbonate and ammonium sulfate in a commercially viable manner. | ||||||
| 78 | Formulation of potassium sulfate, sodium carbonate and sodium bicarbonate from potash brine | US09422271 | 1999-10-21 | US06334990B1 | 2002-01-01 | Robin Phinney |
| A process for the preparation of potassium sulfate, sodium bicarbonate and sodium carbonate. The process involves the treatment of potash brines by the reaction of sodium chloride and potassium chloride with calcium sulfate and sodium sulfate. Syngenite precipitate (CaSO4.K2SO4&khgr;H2O) is produced and a first filtrate containing sodium chloride and potassium chloride. The syngenite precipitate is reacted with ammonium bicarbonate at between 70° C. and 100° C., with the result being calcium carbonate precipitate and a second filtrate containing ammonium sulfate and potassium sulfate. The second filtrate is cooled to a temperature of between 20° C. and 50° C. and treated with potassium chloride. A potassium sulfate precipitate results. The sodium bicarbonate is precipitated from the first filtrate by the addition of ammonium bicarbonate to the first precipitate. The sodium bicarbonate may be calcined to form sodium carbonate. | ||||||
| 79 | Method for sodium carbonate compound recovery and formation of ammonium sulfate | US494073 | 1995-06-23 | US5654351A | 1997-08-05 | Steve Kresnyak; Jake Halldorson |
| There is disclosed a process for recovering sodium bicarbonate and forming ammonium sulfate from a source containing sodium sulfate. The method involves contacting the sodium sulfate in solution with carbon dioxide and a compound containing ammonia. Sodium bicarbonate is precipitated in high purity from the solution. It is important to maintain the temperature of the source solution at or above 32.degree. C. This provision eliminates contamination of hydrates or ammonium bicarbonate components. The filtrate of the sodium bicarbonate reaction can be further processed to yield an ammonium sulfate product in the concentrated liquid or precipitated form in high purity. The basic process can be expanded to be combined with a conventional Claus process for sulphur recovery as a Tail Gas Unit, combined with lime injection to result in gypsum precipitation or can be further employed in a wet scrubbing process for FGD schemes. | ||||||
| 80 | Process for producing sodium bicarbonate from natural soda salts | US796263 | 1991-11-20 | US5275794A | 1994-01-04 | Raymundo R. Luna |
| Production of sodium bicarbonate from natural soda deposits that may occur as natural brines or solid soda salts is disclosed. The alkalinity in these natural soda deposits consists of carbonates and bicarbonates. The carbonates are converted to bicarbonates by reacting sodium carbonate with ammonium bicarbonate which acts as a carbon dioxide carrier until all the sodium carbonate is exhausted. The solubility of the sodium bicarbonate is lowered by the presence of non-alkaline sodium salts, e.g., sodium chloride. The regeneration of the cyclic reagent (NH.sub.3) is done using the sodium bicarbonate formed by the double decomposition of sodium chloride and ammonium bicarbonate giving a final soda free brine exempt of contaminants foreign to its original components. | ||||||
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