21 |
METHOD OF MAKING SODIUM CARBONATE AND/OR SODIUM BICARBONATE |
EP14718882.5 |
2014-03-19 |
EP2976298A1 |
2016-01-27 |
PETERSON, Richard, L.; ICE, Luke; SHEIKH, Omar, Bradley; HUSSEIN, Omar, Ayaz |
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. |
22 |
REMOVING CARBON DIOXIDE FROM WASTE STREAMS THROUGH CO-GENERATION OF CARBONATE AND/OR BICARBONATE MINERALS |
EP05799708.2 |
2005-09-23 |
EP1830945A1 |
2007-09-12 |
Jones, Joe, David |
Apparatuses and methods for removing carbon dioxide and other pollutants from a gas stream are provided. The methods include obtaining hydroxide in an aqueous mixture, and mixing the hydroxide with the gas stream to produce carbonate and/or bicarbonate. Some of the apparatuses of the present invention comprise an electrolysis chamber for providing hydroxide and mixing equipment for mixing the hydroxide with a gas stream including carbon dioxide to form an admixture including carbonate and/or bicarbonate. |
23 |
Method of making sodium carbonate and/or sodium bicarbonate |
US15004539 |
2016-01-22 |
US09656875B2 |
2017-05-23 |
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. |
24 |
METHOD OF MAKING SODIUM CARBONATE AND/OR SODIUM BICARBONATE |
US14015606 |
2013-08-30 |
US20140286850A1 |
2014-09-25 |
Richard L. Peterson; Luke Ice; Omar Bradley Sheikh; Omar Ayaz Hussein; Vasilios Spiridon Koutsogiannis |
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. |
25 |
Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals |
US11233509 |
2005-09-22 |
US07727374B2 |
2010-06-01 |
Joe David Jones |
Apparatuses and methods for removing carbon dioxide and other pollutants from a gas stream are provided. The methods include obtaining hydroxide in an aqueous mixture, and mixing the hydroxide with the gas stream to produce carbonate and/or bicarbonate. Some of the apparatuses of the present invention comprise an electrolysis chamber for providing hydroxide and mixing equipment for mixing the hydroxide with a gas stream including carbon dioxide to form an admixture including carbonate and/or bicarbonate. |
26 |
Process for the manufacture of sodium carbonate |
US10556604 |
2004-05-19 |
US07682588B2 |
2010-03-23 |
Paul Demilie |
Process for the manufacture of sodium carbonate crystals comprising: the addition of solid sodium carbonate (1) to an aqueous solution comprising sodium bicarbonate and sodium carbonate; the crystallization and the separation of sodium sesquicarbonate crystals; (B, C) the crystallization of sodium carbonate crystals, (E) the amount of sodium carbonate added being adjusted so that the crystallization of sesquicarbonate crystals can be carried out without preliminary evaporation of the aqueous suspension. |
27 |
Production of sodium sesquicarbonate and sodium carbonate monohydrate |
US11640791 |
2006-12-18 |
US20070140945A1 |
2007-06-21 |
William Copenhafer |
A process for the production and recovery of crystalline sodium sesquicarbonate and of crystalline sodium carbonate monohydrate from aqueous liquors containing sodium carbonate and sodium bicarbonate. The crystalline products may optionally be heated or calcined to produce soda ash. The process is particularly suited for the recovery of soda ash from aqueous minewater streams obtained from solution mining of subterranean trona ore deposits. |
28 |
Process for the manufacture of sodium carbonate |
US10556604 |
2004-05-19 |
US20070050949A1 |
2007-03-08 |
Paul Demilie |
Process for the manufacture of sodium carbonate crystals comprising: the addition of solid sodium carbonate (1) to an aqueous solution comprising sodium bicarbonate and sodium carbonate; the crystallization and the separation of sodium sesquicarbonate crystals; (B, C) the crystallization of sodium carbonate crystals, (E) the amount of sodium carbonate added being adjusted so that the crystallization of sesquicarbonate crystals can be carried out without preliminary evaporation of the aqueous suspension. |
29 |
Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals |
US11233509 |
2005-09-22 |
US20060185985A1 |
2006-08-24 |
Joe Jones |
Apparatuses and methods for removing carbon dioxide and other pollutants from a gas stream are provided. The methods include obtaining hydroxide in an aqueous mixture, and mixing the hydroxide with the gas stream to produce carbonate and/or bicarbonate. Some of the apparatuses of the present invention comprise an electrolysis chamber for providing hydroxide and mixing equipment for mixing the hydroxide with a gas stream including carbon dioxide to form an admixture including carbonate and/or bicarbonate. |
30 |
Process for production of potassium carbonate sesquihydrate |
US09764920 |
2001-01-18 |
US06409982B1 |
2002-06-25 |
William J. Zuccarello; Elliot Block; Joseph A. Paluzzi; Kenneth R. Cummings |
This invention provides a process for the production of dry free-flowing potassium carbonate sesquihydrate. The process involves the controlled hydration of high purity anhydrous potassium carbonate. The product of the process has at least about 90 percent particle size distribution in the range between about 200-1500 microns. The invention potassium carbonate sesquihydrate has properties which adapt the product for utility as a macromineral nutrient in animal feedstocks. |
31 |
Process for the recovery of sodium carbonate from salt mixtures |
US642797 |
1984-08-21 |
US4564508A |
1986-01-14 |
Michael J. Fairweather; Michael A. Rockandel; Abraham Sadan; Godefridus M. Swinkels |
Mined salt mixtures comprising sodium-carbonate, -bicarbonate, -chloride, -sulfate, and -double salts, such as trona and burkeite, are leached with a bicarbonate-saturated solution and added carbon dioxide to selectively dissolve the sodium chloride, sodium sulfate and burkeite and to precipitate additional trona, leaving a leach residue consisting essentially of trona. The trona is calcined and dissolved, and the carbonate solution is purified, crystallized and dehydrated in a non-convective solar pond yielding high purity sodium carbonate monohydrate which is converted into dense soda ash. The brine solution from the leach may be treated for the recovery of a further amount of trona. |
32 |
Process for producing sodium sesquicarbonate and soda ash from trona |
US3455647D |
1967-05-25 |
US3455647A |
1969-07-15 |
GLOSTER ARTHUR |
|
33 |
Dissolution of trona at elevated temperature and pressure |
US37802064 |
1964-06-25 |
US3328130A |
1967-06-27 |
GANCY ALAN B |
|
34 |
Process of recovering sodium carbonate from the mother liquor bleed |
US46904065 |
1965-06-16 |
US3273959A |
1966-09-20 |
STANDISH MILLER WARREN |
|
35 |
Calcium control in crystallization of sodium sesquicarbonate |
US7545560 |
1960-09-26 |
US3233983A |
1966-02-08 |
BAUER WILLIAM C; MCCUE ALLEN P; RULE KENNETH C |
|
36 |
Method of producing refined soda ash from trona |
US33632153 |
1953-02-11 |
US2792282A |
1957-05-14 |
RAY KENNETH B; TRUST COMPANY THE STAMFORD |
|
37 |
Production of pure salts from trona |
US38509241 |
1941-03-25 |
US2346140A |
1944-04-11 |
PIKE ROBERT D |
|
38 |
Production of sodium and potassium carbonates |
US43237442 |
1942-02-26 |
US2343081A |
1944-02-29 |
PIKE ROBERT D |
|
39 |
Method of making sodium carbonate salts |
US63587432 |
1932-10-01 |
US2042709A |
1936-06-02 |
HANS FRASCH |
|
40 |
Process for producing sodium sesquicarbonate |
US10054026 |
1926-04-08 |
US1748739A |
1930-02-25 |
CARL SUNDSTROM; TERZIEV GEORGE N |
|