41 |
Method for producing a sodium bicarbonate for flue gas desulfurization |
JP2010541769 |
2009-01-06 |
JP5461430B2 |
2014-04-02 |
ジャン ポール デトゥルネイ; フランシス クストリー |
Process for producing sodium bicarbonate for purifying flue gases, according to which an aqueous solution containing sodium sulfate is subjected to electrodialysis to produce a sodium hydroxide solution and a sodium bisulfate solution, the sodium hydroxide solution being carbonated in order to obtain sodium bicarbonate. |
42 |
Use of carbon dioxide in electrochemical system |
JP2013192595 |
2013-09-18 |
JP2014012899A |
2014-01-23 |
RYAN GILLIAM; THOMAS A ALBRECHT; NIKIR JARANI; NIGEL ANTONY KNOTT; VALENTINE DECKER; MICHAEL KOSTOWSKYJ; BRYAN BOGGS; ALEXANDER GORER; KASRA FARSAD |
PROBLEM TO BE SOLVED: To use COin an electrochemical system in a preferred mode.SOLUTION: In a low-voltage, low-energy electrochemical system and method, protons are removed, and/or a base solution containing hydroxide ions and carbonate/bicarbonate ions is produced, and carbon dioxide is used in a cathode chamber that is divided into a first cathode electrolyte compartment and a second cathode electrolyte compartment so as to permit a fluid flow but to limit gas communication between the two cathode electrolyte compartments. Carbon dioxide gas in one of the cathode electrolyte compartments is used together with cathode electrolytes in both the compartments, and a voltage less than 3 V is applied across electrodes to thereby produce the base solution. |
43 |
co2 use of in an electrochemical system |
JP2011518896 |
2009-07-15 |
JP5373079B2 |
2013-12-18 |
ライアン ギリアム,; トーマス エー. アルブレヒト,; ニキール ジャラニ,; ニゲル アントニー ノット,; バレンティン デッカー,; マイケル コストウスキー,; ブライアン ボッグス,; アレクサンダー ゴーラー,; カスラ ファーサド, |
A low-voltage, low-energy electrochemical system and method of removing protons and/or producing a base solution comprising hydroxide and carbonate/bicarbonate ions, utilizing carbon dioxide in a cathode compartment that is partitioned into a first cathode electrolyte compartment and a second cathode electrolyte compartment such that liquid flow between the cathode electrolyte compartments is possible, but wherein gaseous communication between the cathode electrolyte compartments is restricted. Carbon dioxide gas in one cathode electrolyte compartment is utilized with the cathode electrolyte in both compartments to produce the base solution with less that 3V applied across the electrodes. |
44 |
Process for producing alkali metal hydrogen carbonate |
JP2010283578 |
2010-12-20 |
JP2011051895A |
2011-03-17 |
HIRANO HACHIRO; OKABE MASAAKI; KIKUCHI SHINTARO; ARIMA JUICHI; TERASE KUNIHIKO; SHIBATA HIDENORI |
<P>PROBLEM TO BE SOLVED: To provide a process for producing an alkali metal hydrogen carbonate by which alkali metal hydrogen carbonate crystals having a large particle diameter can be obtained. <P>SOLUTION: An operation is intermittently repeated in which the concentration of the alkali metal hydrogen carbonate dissolved in a crystallization solution in a crystallizer is regulated to below the saturation solubility to dissolve away fine particles of the alkali metal hydrogen carbonate. An operation of adding an alkali metal hydroxide to the crystallization solution is performed as the operation for dissolving away fine particles. <P>COPYRIGHT: (C)2011,JPO&INPIT |
45 |
How to get the sodium carbonate crystals |
JP2009527811 |
2007-09-12 |
JP2010503600A |
2010-02-04 |
ミッシェル アンス; フランシス エム クストリー |
Method for producing sodium carbonate, according to which an aqueous sodium chloride solution (5) is electrolyzed in a membrane-type cell (1) from which an aqueous sodium hydroxide solution (9) is collected, and carbonated by direct contact with carbon dioxide (15) to form a slurry of crystals of anhydrous sodium carbonate (16), and the slurry or its mother liquor is evaporated (3) to collect sodium carbonate (18). |
46 |
The preparation of sodium carbonate aqueous solution |
JP7892293 |
1993-03-13 |
JP3114775B2 |
2000-12-04 |
賢二 山口; 智明 浦井; 敏成 角光 |
|
47 |
JPH07506149A - |
JP51822494 |
1994-02-03 |
JPH07506149A |
1995-07-06 |
|
|
48 |
JPH05508144A - |
JP50739091 |
1991-03-27 |
JPH05508144A |
1993-11-18 |
|
The present invention is directed to an improved method for carrying out a exothermic chemical reaction with carbon dioxide in an aqueous environment. In the method, a fluid solution containing at least one chemical reactant which is exothermically reactive with carbon dioxide is provided. Liquid carbon dioxide is then injected into the solution of the chemical reactant at a pressure above the triple point of at least about 60 psig. The injection of the liquid carbon dioxide takes place under turbulent conditions wherein the liquid carbon dioxide expands to provide carbon dioxide vapor. The carbon dioxide vapor superheats to approach the exothermic reaction temperature which occurs between the carbon dioxide vapor and the chemical reactant. The chemical reactant and the carbon dioxide react in the dispersion exothermically to produce a chemical reaction product. The flow rate of liquid carbon dioxide can be controlled to control the reaction temperature without the encessity for providing any reactor cooling or heat exchange apparatus. |
49 |
Production of granular carbonate from caustic alkali |
JP4983188 |
1988-03-04 |
JPH01226716A |
1989-09-11 |
NAKAYA KEIICHI; SATO KUNIO |
PURPOSE: To produce granular carbonate having uniform particle size, by mixing and granulating an aq. soln. of caustic alkali and alkali carbonate powder in advance when alkali metal carbonate is produced by carbonating the caustic alkali.
CONSTITUTION: The granules having 430μ mean particle size are produced, by adding 1.0kg and aq. NaOH soln. of 48wt.% concn. to 10kg sodium carbonate.monohydrate crushed to 40μ mean particle size, for example, by mixing with a horizontal rotary mixer and furthermore, by granulating with a twin axial granulator. Then, the granule body is obtd. by placing the granules in a hot air circulating dryer and by keeping the temp. at 80°C for 3hr in an atmosphere contg. 5vol.% CO
2 (the remainder is air) to carbonize and dry. The granule body obtd. thereby consists of cylindrical granular secondary granules. Since the carbonate is obtd. with retaining the granulated form, the carbonate has uniform particle size.
COPYRIGHT: (C)1989,JPO&Japio |
50 |
JPS5248960B1 - |
JP1428572 |
1972-02-09 |
JPS5248960B1 |
1977-12-13 |
|
|
51 |
Jutansannatoriumunoseizohoho |
JP6084775 |
1975-05-21 |
JPS5123499A |
1976-02-25 |
ANDORE ARUCHUURU; SHARURU MUNIEERU |
|
52 |
JPS5087998A - |
JP10356374 |
1974-09-10 |
JPS5087998A |
1975-07-15 |
|
|
53 |
Processes and systems for preparing lithium carbonate |
US15031746 |
2014-10-23 |
US10144990B2 |
2018-12-04 |
Guy Bourassa; Gary Pearse; Stephen Charles Mackie; Mykolas Gladkovas; Peter Symons; David J. Genders; Jean-François Magnan; Geneviève Clayton |
There are provided processes comprising submitting an aqueous composition comprising lithium sulphate and/or bisulfate to an electrolysis or an electrodialysis for converting at least a portion of said sulphate into lithium hydroxide. During electrolysis or electrodialysis, the aqueous composition is at least substantially maintained at a pH having a value of about 1 to about 4; and converting said lithium hydroxide into lithium carbonate. Alternatively, lithium sulfate and/or lithium bisulfate can be submitted to a first electromembrane process that comprises a two-compartment membrane process for conversion of lithium sulfate and/or lithium bisulfate to lithium hydroxide, and obtaining a first lithium-reduced aqueous stream and a first lithium hydroxide-enriched aqueous stream; and submitting said first lithium-reduced aqueous stream to a second electromembrane process comprising a three-compartment membrane process to prepare at least a further portion of lithium hydroxide and obtaining a second lithium-reduced aqueous stream and a second lithium-hydroxide enriched aqueous stream. |
54 |
Systems and methods for acid gas removal from a gaseous stream |
US14599137 |
2015-01-16 |
US09968883B2 |
2018-05-15 |
Al Yablonsky; Alexander Stola; Adam Germain; Joe Jones |
Apparatuses, systems, and methods for removing acid gases from a gas stream are provided. Gas streams include waste gas streams or natural gas streams. The methods include obtaining a hypochlorite and a carbonate or bicarbonate in an aqueous mixture, and mixing the aqueous mixture with the gas stream to produce sulfates or nitrates from sulfur-based and nitrogen-based acidic gases. Some embodiments of the present disclosure are directed to produce the carbonate and/or bicarbonate scrubbing reagent from CO2 in the gas stream. Still others are disclosed. |
55 |
Method for separating high molecular weight gases from a combustion source |
US15016608 |
2016-02-05 |
USRE46829E1 |
2018-05-08 |
Jerry Lang; David Scott |
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. |
56 |
METHOD OF MAKING SODIUM CARBONATE AND/OR SODIUM BICARBONATE |
US15004539 |
2016-01-22 |
US20160137520A1 |
2016-05-19 |
Richard L. Peterson; Luke Ice; Omar Bradley Sheikh; Omar Ayaz Hussein |
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+[X—O]− where X is Cl, Br, or I. |
57 |
Acidic gas removal using dry sorbent injection |
US14471422 |
2014-08-28 |
US09174165B1 |
2015-11-03 |
Sanjay Kumar Dube |
A system and method for desulfurization or acidic gas removal from a hot flue gas is provided that uses a dry sorbent injection technology with downstream sorbent reproduction based on a dual-alkali process. As such, lime and flue gas carbon dioxide are used in a process to produce the dry sorbent, sodium bicarbonate. |
58 |
Separation method for potassium from aqueous KOH solutions |
US14246916 |
2014-04-07 |
US09139891B2 |
2015-09-22 |
Lonnie Sharpe, Jr.; Taylor Anthony Cappadona; Roger Dale Painter; Thomas Duane Byl; Tasneem Ahmed Siddiquee; Koen Peter Vercruysse |
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. |
59 |
System and method for carbon dioxide solidification |
US13302197 |
2011-11-22 |
US09051189B2 |
2015-06-09 |
Tae Young Kim; Sung Yeup Chung; Ki Chun Lee |
Disclosed is a method for solidifying carbon dioxide into carbonate, in which carbon dioxide is stably converted into and solidified into carbonate (mineral facies) by using steel slag or natural mineral by extracting an alkali component by supplying an ammonium salt solvent as an extraction solvent to raw slag and injecting carbon dioxide into an extract solution supplied to a carbonation reactor to produce carbonate precipitate from the extract solution through the induction of a conversion reaction of the carbon dioxide into the carbonate precipitate. Then after the above two step are performed at least one an acetic acid solvent is supplied as an extraction solvent to the raw slag so as to finally extract an alkali component; and carbon dioxide is injected into an extract solution to produce carbonate precipitate from the extract solution through the induction of a conversion reaction of the carbon dioxide into the carbonate precipitate. |
60 |
Preparation of lithium carbonate from lithium chloride containing brines |
US14257369 |
2014-04-21 |
US09034295B2 |
2015-05-19 |
Stephen Harrison |
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. |