| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 二氧化碳俘获 | CN200980130758.4 | 2009-06-19 | CN102112208A | 2011-06-29 | D·基斯; M·玛默克哈尼 |
| 公开了一种二氧化碳俘获方法。在步骤(a)中，从二氧化碳和氢氧化钠水溶液反应形成的第一水溶液中分离无水碳酸钠。在步骤(b)中，对所述无水碳酸钠进行苛化处理以产生二氧化碳和氢氧化钠。通过用氢氧化钠水溶液洗涤包含二氧化碳的气体来形成步骤(a)中的第一水溶液。 | ||||||
| 2 | 重无水碳酸钠的制造方法 | CN86100688 | 1986-01-28 | CN1009076B | 1990-08-08 | 利昂·尼拿利; 克劳德·布雷顿 |
| 在高于碳酸钠一水合物转化成无水碳酸钠的转变温度范围内，向碳酸钠饱和溶液(6)中加入轻无水碳酸钠(2)，在该温度范围内，将所生成的悬浮液进行熟化处理。 | ||||||
| 3 | 重无水碳酸钠的制造方法及用该方法制得的重无水碳酸钠 | CN86100688 | 1986-01-28 | CN86100688A | 1986-07-30 | 利昂·尼拿利; 克劳德·布雷顿 |
| 在高于碳酸钠-水合物转化成无水碳酸钠的转变温度范围内，向碳酸钠饱和溶液(6)中加入轻无水碳酸钠(2)，在该温度范围内，将所生成的悬浮液进行熟化处理。 | ||||||
| 4 | Method for Enhancing Sodium Bicarbonate Flowability | US15275293 | 2016-09-23 | US20170081203A1 | 2017-03-23 | Donald MOREHOUSE; Julie BAUER; Jeremy Zollinger |
| A process for producing crystalline sodium bicarbonate, comprising: feeding dried sodium bicarbonate solids with a mass flow rate to a fluid bed cooling unit, wherein said cooling unit comprises at least one cooling element through which flows a cooling fluid; flowing a fluidization gas stream in the fluid bed cooling unit to fluidize the dried sodium bicarbonate solids, in order for the dried sodium bicarbonate solids to be in thermal contact with the at least one cooling element; withdrawing a sodium bicarbonate product from the fluid bed cooling unit; and adjusting the temperature of the cooling fluid flowing through the at least one cooling element in order for the sodium bicarbonate product to have an outlet temperature of 95° F. or less, preferably less than 90° F., when being withdrawn from the fluid bed cooling unit. | ||||||
| 5 | Preparation of high bulk density anhydrous sodium carbonate crystals | US923249 | 1986-10-27 | US4738836A | 1988-04-19 | Rustom P. Poncha; Ronald E. Sorg |
| Sodium carbonate having a high bulk density and pseudo-cubic crystal structure is prepared from impure trona purge liquors from the crystallizers containing high concentration of organics, silica and sulfate by a sequence of steps involving (1) treatment of the liquors with MgO; (2) separation of the treated liquor from the insoluble reaction products; (3) addition of Ca and Mg compounds to the liquor; (4) evaporating the solution to obtain sodium carbonate monohydrate crystals; (5) separating the crystals from the mother liquor; and (6) heating the crystals at temperature of about 150.degree.-200.degree. C. to convert to dense ash. | ||||||
| 6 | Soluble silicate reduction in sodium carbonate crystallizer mother liquors | US587575 | 1975-06-17 | US4022867A | 1977-05-10 | Alan B. Gancy; Rustom P. Poncha |
| In the process for making sodium carbonate from trona, the soluble silicate content of crystallizer mother liquor from which sodium carbonate precursor crystals are obtained by evaporative crystallization is reduced by the method which comprises:1. digesting said mother liquor at elevated temperature for time sufficient to reduce soluble silicates, in the presence as treating agent of insolubles which have been obtained by (a) calcination of crushed trona, (b) segregation of a fine particle size fraction from the calcined trona, (c) dissolution of said fine particle size fraction in an aqueous medium to obtain a solution comprising sodium carbonate and insolubles, followed by (d) separating insolubles, and2. separating the insolubles from the digested mother liquor, and recycling the mother liquor to the process. | ||||||
| 7 | Process for the preparation of porous sodium bicarbonate | US88042469 | 1969-11-26 | US3868444A | 1975-02-25 | FREVEL LUDO K; KRESSLEY LEONARD J |
| Disclosed is a process for preparing hard, porous granules of sodium bicarbonate having a surface area greater than 0.5 square meter per gram. The process involves reacting ammonium bicarbonate with a soluble sodium salt in aqueous solution wherein the concentration Na is greater than about 2.5 gram ions per liter and the concentration of HCO3 is greater than about 0.04 gram ions per liter, while agitating the solution and adding carbon dioxide thereto in an amount sufficient to create a partial pressure of from 15 to 40 psig. The sodium bicarbonate crystals formed during the reaction are separated from the aqueous solution and dried at a temperature of from about 20* to about 75*C. The sodium bicarbonate product is especially useful for removing SO2, as well as other acid gases, from flue gas due to its high surface area.
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| 8 | Production of dense soda ash from trona | US3479134D | 1967-01-19 | US3479134A | 1969-11-18 | WARZEL FRED M |
| 9 | Production of sodium carbonate | US36124764 | 1964-04-20 | US3379495A | 1968-04-23 | RICHARD BROOKS |
| 10 | Anhydrous dense soda ash | US24326662 | 1962-12-10 | US3236590A | 1966-02-22 | PETER SOPCHAK; PORT EUGENE B |
| 11 | JPS616010B2 - | JP7853978 | 1978-06-30 | JPS616010B2 | 1986-02-22 | IGAWA KAZUNARI; SAITO HIROYUKI; KIKUCHI MITSUO |
| 12 | Production of anhydrous sodium carbonate | JP10492976 | 1976-09-03 | JPS5330999A | 1978-03-23 | FUJITA SHISEI |
| PURPOSE: To thermally decompose NaHCO 3 or sodium sesquicarbonate with high efficiency in an easy and energy conservative manner by suspending it in a conc. soln. of Na 2CO 3 and countercurrently contacting the suspension with steam under specified conditions. COPYRIGHT: (C)1978,JPO&Japio | ||||||
| 13 | JPS4936118B1 - | JP7754365 | 1965-12-17 | JPS4936118B1 | 1974-09-27 | |
| 14 | PRODUCTION OF WATER-FREE SODA | EP98966423.0 | 1998-12-22 | EP1042226B1 | 2002-04-10 | MEIJER, Johannes, Albertus, Maria; GEERTMAN, Robert, Michael; OOSTERHOF, Harald; WITKAMP, Geert-Jan; VAN ROSMALEN, Gerda, MAria |
| A process is presented in which anhydrous soda is crystallized and worked up to produce anhydrous soda crystals with a bulk density from 1300 to 1600 kg/m<3>. The process is characterized in that a solvent is used that allows the crystals to be formed and handled at atomspheric pressure in the presence of water without the monohydrate of soda being formed. | ||||||
| 15 | Process for production of dense soda ash from soda ash fines | EP96201222.5 | 1996-05-02 | EP0742175B1 | 2001-03-21 | Delling, David R; Green, Kevin L; Phillip, James D; Robertson, Donald M |
| 16 | Procédé de fabrication de carbonate de sodium anhydre dense et carbonate de sodium anhydre dense obtenu par ce procédé | EP86200082.5 | 1986-01-20 | EP0191512A1 | 1986-08-20 | Ninane, Léon; Breton, Claude |
On ajoute du carbonate de sodium anhydre léger à une solution aqueuse saturée de carbonate de sodium dans un domaine de températures supérieures à la température de transition du carbonate de sodium monohydraté en carbonate de sodium anhydre et on soumet la suspension aqueuse résultante à un traitement de mûrissage dans ce domaine de températures. |
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| 17 | JPS573602B2 - | JP10493076 | 1976-09-03 | JPS573602B2 | 1982-01-22 | |
| 18 | JPS572652B2 - | JP10492976 | 1976-09-03 | JPS572652B2 | 1982-01-18 | |
| 19 | JPS5543403B1 - | JP9632671 | 1971-12-01 | JPS5543403B1 | 1980-11-06 | |
| 20 | Production of heavy sodium carbonate | JP10493076 | 1976-09-03 | JPS5331000A | 1978-03-23 | FUJITA SHISEI; ISHINE SHIGEKI; MORITA KAZUYOSHI |
| PURPOSE: To efficiently produce heavy ash of uniform grain size in an energy conservative manner by thermally decomposing a slurry obtd. by adding NaHCO 3 or sodium sesquicarbonate to a conc. soln. of Na 2CO 3 with high press. steam at a temp. above 150°C and cooling the formed slurry under specified conditions. COPYRIGHT: (C)1978,JPO&Japio | ||||||
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