| Patents for C01D 7 - Carbonates of sodium, potassium, or alkali metals in general (1,753) |
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| 08/16/2006 | CN1269736C Technique for producing baking soda directly through preparaing and storing brine in large shed of greenhouse inside lake |
| 08/10/2006 | WO2006081930A1 Modified sodium carbonate carrier material |
| 08/09/2006 | CN1814548A Non-waste-emission ammonia-sode process anhydrous sodium carbonate process |
| 08/02/2006 | CN1267349C Method for separating and recovering sodium arsenate and alkali by fractional crystallization method |
| 08/02/2006 | CN1267173C Carbon decomposed mother liquor high concentration crystallization evaporation method |
| 07/26/2006 | EP1635932A4 Method and apparatus for treating fluids |
| 07/26/2006 | CN1266043C Comprehensive process for recovering and treating indigo blue powder waste slag |
| 07/11/2006 | CA2247778C Liquor oxalate stabilizers |
| 07/05/2006 | CN1796280A Separation of salt and alkali from waste salt and alkali residue in production of hydrazine hydrate and technique of cyclic utilization |
| 07/05/2006 | CN1262478C Recovering process for NH3 and CO2 from production of low salt low potassium heavy sodium carbonate |
| 06/21/2006 | CN1791553A Process for the manufacture of sodium carbonate |
| 06/21/2006 | CN1789130A Calcination cooling machine of heavy soda-fluidized bed |
| 06/14/2006 | CN1786636A Light-weight calcining machine with buried pipe fluidized bed for sodium carbonate |
| 06/14/2006 | CN1785812A Heavy soda ash fluidized calcoining coling system and process thereof |
| 06/14/2006 | CN1785811A Light soda ash fluidized calcining system and process thereof |
| 06/13/2006 | US7060219 Continuous method and apparatus for manufacture of uniform size flake or powder |
| 06/08/2006 | US20060120942 Sodium carbonate and sodium bicarbonate production |
| 05/26/2006 | WO2006053873A1 Magnetic separation process for trona |
| 05/24/2006 | EP1659097A1 Composition containing at least sodium bicarbonate, preparation method therefor and uses thereof |
| 05/24/2006 | CN1777561A Surface-treated particle of water-soluble inorganic compound, process for producing the same, and particulate detergent composition |
| 05/24/2006 | CN1775680A Method for producing sesqui alkali by solid-phase by hydration process |
| 05/24/2006 | CN1775679A New method for joint-producing anhydrous sodium carbonate, potassium sulfate and ammonia chloride |
| 05/23/2006 | CA2527825A1 Bromide reduction process in liquid solutions |
| 05/17/2006 | CN1772615A Process for producing water ash,light soda, sodium bicarbonate and sodium silicate with solution containing bicarbonate |
| 05/17/2006 | CN1256277C Method of eliminating water insolubles (fine suspension and organic pigment) from alkali bittern |
| 05/16/2006 | US7045104 Volume reduction of aqueous waste by evaporative crystallization of burkeite and sodium salts |
| 05/04/2006 | WO2006045718A1 Method for crystallizing soluble salts of divalent anions from brine |
| 05/04/2006 | CA2584696A1 Method for crystallizing soluble salts of divalent anions from brine |
| 04/19/2006 | CN1761617A Method for recovering purified sodium bicarbonate and ammonium sulfate |
| 03/28/2006 | US7018594 Without precipitation of sodium bicarbonate containing crystals. |
| 03/23/2006 | DE10357426B4 Verfahren zur Vermeidung von Anhaftungen bei der Zerkleinerung von Natriumhydrogencarbonat A method for the prevention of adhesions during the comminution of sodium hydrogen carbonate |
| 03/22/2006 | EP1635932A2 Method and apparatus for treating fluids |
| 03/08/2006 | EP0858429B1 Composition containing at least sodium bicarbonate, preparation method therefor and uses thereof |
| 03/02/2006 | WO2006023657A2 Methods for constructing underground borehole configurations and related solution mining methods |
| 03/01/2006 | EP1628915A1 Process for the manufacture of sodium carbonate |
| 02/23/2006 | US20060039842 Mining trona by injecting an aqueous solution into an underground cavityto dissolve the ore; removing aqueous solution where the temperature of the solution is 90-145 degrees C.; recovering alkaline values from the solution comprising condensed steam produced by evaporation to produce sodium products |
| 02/22/2006 | CN1736869A Production of high concentration composite fertilizer from heavy soda and diamide |
| 02/15/2006 | EP0862466B1 Vapor sterilization using inorganic hydrogen peroxide complexes |
| 01/25/2006 | CN1724371A Process for cooling of high temp. sodium carbonate |
| 01/24/2006 | US6989318 Method for reducing shallow trench isolation consumption in semiconductor devices |
| 01/18/2006 | CN1237005C Synchronously continuous production process of low salt heavy sodium carbonate and calcinations drying oven |
| 01/04/2006 | CN1715187A High efficiency producing process for heavy sodium carbonate |
| 12/14/2005 | EP1603834A1 Method for recovering purified sodium bicarbonate and ammonium sulfate |
| 12/08/2005 | WO2005115423A1 Using organic and/or inorganic potassium and its salts to treat autoimmune and other health disorders and methods of administering the same |
| 12/08/2005 | CA2567637A1 Using organic and/or inorganic potassium and its salts to treat autoimmune and other health disorders and methods of administering the same |
| 12/01/2005 | DE4491020B4 Verfahren zur Herstellung von Alkalimetalldispersionen A process for preparing alkali metal dispersions |
| 10/06/2005 | US20050220687 Emulsifying an oil in an aqueous solution to form an oil-in-water emulsion; forming a saturated trona brine; adding the trona ore to the saturated brine to form a saturated trona suspension, trona ore including trona and gangue material; conditioning; separating |
| 10/06/2005 | DE19730573B4 Verfahren zur vollautomatischen Regelung der Karbonisierung von Kalilauge zu Pottaschelauge Method for fully automatic control of the carbonization of caustic potash potash lye to |
| 09/28/2005 | CN2729041Y Device for reinfing soda ash mother solution by disoda method |
| 08/17/2005 | CN1214980C Method for coproducing soda, potassium sulfate and ammonium chloride |
| 08/04/2005 | US20050166368 salts in feed solution diffuse into the layers of pond and a salt having a solubility which increases with temperature crystallizes in the upper layers, precipitates to the bottom and re-dissolves; solar energy |
| 07/19/2005 | US6919061 Deactivating residual sodium using process that does not suffer from temperature and pressure instabilities or produce waste that requires neutralization by using humidified carbon dioxide to convert residual sodium to sodium bicarbonate |
| 07/07/2005 | DE10357426A1 Process for crushing sodium bicarbonate in sifting mill uses additive, preferably solid or liquid trimethylolpropane, that prevents encrustation |
| 07/06/2005 | CN1209323C Process for preparing K fertilizer (K salt) from K-enriched rock and lime by hydrothermal method |
| 06/22/2005 | CN1207250C Process for preparing potassic fertilizer from K-enriched rock and lime by hydrothermal method |
| 06/15/2005 | CN1628078A Continuous method and apparatus for manufacture of uniform size flake or powder |
| 06/08/2005 | CN1205124C Method for separating magma in producing soda process |
| 05/31/2005 | CA2233249C Composition containing at least sodium bicarbonate, preparation method therefor and uses thereof |
| 05/25/2005 | CN1202998C External cooler heat-exchange process in combined alkali-making method |
| 05/19/2005 | WO2005044742A1 Process for the biological treatment of sulphur salts |
| 05/11/2005 | CN1613769A Combined production of alkali by using waste water |
| 04/28/2005 | US20050090072 Method for reducing shallow trench isolation consumption in semiconductor devices |
| 04/26/2005 | US6884269 Continuous method for manufacture of uniform size flake or powder |
| 04/13/2005 | CN1605564A Decomposition liquid recovering technology in heavy sodium carbonate |
| 04/06/2005 | CN1603234A Formula and technique for extracting potassium carbonate and aluminum hydroxide and preparing siliceous fertilizer using slate with rich kalium |
| 03/23/2005 | CN2687102Y Multi-stage sievemesh plate internal circulating carbonizing tower |
| 03/23/2005 | CN1193934C Sulfate radical eliminating process for underground bittern |
| 03/16/2005 | EP1513772A1 Continuous method and apparatus for manufacture of uniform size flake or powder |
| 03/16/2005 | CN1594090A Method for separating and recovering sodium arsenate and alkali by fractional crystallization method |
| 03/02/2005 | CN1587052A Novel process for producing sesquiter soda |
| 02/24/2005 | WO2004110602A3 Method and apparatus for treating fluids |
| 02/23/2005 | CN2680339Y Sieve plate and cap composite structure carbonized tower for producing alkali using combined alkali method |
| 02/23/2005 | CN1190363C Process for preparing both sodium carbonate and silca white |
| 02/15/2005 | US6854809 Sodium carbonate and sodium bicarbonate production from nahcolitic oil shale |
| 02/09/2005 | EP1377266A4 Micron sized bicarbonate particles and slurrys containing the same |
| 01/26/2005 | CN2673852Y Mortar mixing drum |
| 01/26/2005 | CN1569636A Technology and device for reducing water content in sodium bicarbonate by using filter aid |
| 01/26/2005 | CN1569326A Filter aid for soda production and preparing method thereof |
| 01/26/2005 | CN1186264C Method of preparing chromium oxide using wet reducing potassium bichromate or sodium bichromate |
| 01/25/2005 | CA2465084C Delivery system and method for delivering a plurality of packages containing a solid material |
| 01/19/2005 | EP1230159B1 Method for formulating food grade sodium bicarbonate |
| 01/12/2005 | CN1562752A Technique for producing baking soda directly through preparaing and storing brine in large shed of greenhouse inside lake |
| 01/05/2005 | CN2668602Y Apparatus for continuously producing low-salt monothermonatrite |
| 01/05/2005 | CN1559903A Carbonators with sieve-plate and hat shape mixture structure for preparing alkali by combined alkali process |
| 12/30/2004 | US20040265206 Porous potassium carbonate having special pore structure and method for its production |
| 12/29/2004 | CN1557708A Comprehensive process for recovering and treating indigo blue powder waste slag |
| 12/28/2004 | CA2161443C Large potassium bicarbonate crystals and process for the preparation thereof |
| 12/23/2004 | WO2004110602A2 Method and apparatus for treating fluids |
| 12/15/2004 | CN1179883C Method of producing soda using Gauber salt of natural salt lake sodium sulfate decahydrate resources blending with residual halogen and carbonizing |
| 12/08/2004 | CN2661672Y Ammonia alkali process separately cooling carbonization tower |
| 12/02/2004 | WO2004103905A1 Process for the manufacture of sodium carbonate |
| 12/01/2004 | CN1177759C Method of ammonium sulfate purification |
| 11/25/2004 | US20040231109 Extracting crude material from geological formations containing lean oil shale deposits and purifying; injecting boiling water optionally containing salts and multistage recrystallizing; high yield, low cost, simple; commercial product |
| 11/24/2004 | CN1548373A Dry alkali powder recovering process |
| 11/10/2004 | CN2654590Y Air jet flow alkali transfer device |
| 11/10/2004 | CN1544330A Synchronously continuous production process of low salt heavy sodium carbonate and calcinations drying oven |
| 11/04/2004 | US20040219396 Abrasion-resistant agglomerate mineral substance granule, powder comprising such granules and production method therefor |
| 11/04/2004 | US20040219090 Sequestration of carbon dioxide |
| 11/03/2004 | EP1473044A2 Vapor sterilization using inorganic hydrogen peroxide complexes |
| 10/27/2004 | CN1172853C Method of producing low-salt sodium carbonate |