| Patents for C01D 9 - Nitrates of sodium, potassium, or alkali metals in general (399) |
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| 05/12/2010 | CN201454126U Vacuum concentration device for separating ammonium chloride in production of potassium nitrate |
| 05/05/2010 | CN101700898A Recovery method of inorganic salt in technology of molybdenum oxide or molybdenum waste alkali leaching-extraction preparing ammonium molybdate |
| 04/21/2010 | CN101696024A Stirring-free method and device for producing sodium nitrate through continuous conversion |
| 04/21/2010 | CN101696023A Method and device for preparing raw material liquid of sodium nitrate and sodium nitrite by using reformed gas |
| 03/24/2010 | CN101676208A Co-production technology of sodium silicate and gypsum whisker with mirabilite method |
| 03/24/2010 | CN100595149C Technique for producing sodium nitrate by chilisaltpeter adverse current circulation leaching |
| 03/17/2010 | CN101671087A Method for recovering reagent grade sodium nitrate from waste liquid of bismuth subnitrate production |
| 03/03/2010 | CN101659431A Method for preparing potassium nitrate by means of double decomposition |
| 02/10/2010 | CN101643226A Method for producing nitrate and ammonium chloride with double decomposition circulation method |
| 01/20/2010 | CN101628723A Method for preparing potassium nitrate and ammonium chloride employing double decomposition reaction |
| 01/19/2010 | US7648687 removal of impurities by precipitation and separation using a nonmetallic-ion-containing strong base, e.g., tetraalkylammonium hydroxides; reduction of higher oxidation-state-number oxymetal ions and subsequent precipitation as hydroxides that are separated; liquid-liquid exchange extraction to remove Sr |
| 01/13/2010 | CN101624195A Method for pelletizing sodium nitrate spherical fine particles |
| 11/25/2009 | CN101585548A Method for preparing inorganic sylvine crystal and feed additive by using molasses fermented waste liquid |
| 11/18/2009 | EP2118010A1 Multinary salt system for storing and transferring thermal energy |
| 11/11/2009 | CN100558636C Method for producing potassium nitrate by sodium nitrate and potassium chloride double decomposition reaction |
| 10/21/2009 | CN101559967A Method for preparing barium nitrate, calcium nitrate, calcium sulfate and sodium nitrate by utilizing middle and low grade barium carbonate ore |
| 09/30/2009 | CN101544386A Method for producing potassium nitrate together with ammonium chloride and ammonium nitrate |
| 08/26/2009 | EP2091505A2 Process to form nano-sized materials, the compositions and uses thereof |
| 08/26/2009 | CN100532260C Vacuum crystallization technique for producing potassium nitrate from potassium chloride by sodium nitrate |
| 05/27/2009 | CN101439849A Comprehensive utilization process for waste aluminum etching solution |
| 04/30/2009 | WO2008140476A3 Process to form nano-sized materials, the compositions and uses thereof |
| 04/08/2009 | CN100475700C Potassium nitrate preparing technology |
| 01/14/2009 | CN101343072A Method for preparing sodium nitrate with soda niter |
| 11/19/2008 | CN101306825A Scouring process for cold-separation crude product of NaNO3 from nitre ore leaching liquid |
| 11/19/2008 | CN101306824A Cold-separation process of NaNO3 from nitre ore leaching liquid |
| 11/19/2008 | CN101306823A Process for recycling NaNO3 multilevel leaching liquid prepared by saltier ore |
| 11/19/2008 | CN101306822A NaNO3 leaching liquid prepared saltier ore |
| 10/22/2008 | CN101289199A Process for preparation potassium salt for plant ash |
| 08/13/2008 | CN101239896A Method for preparing calcium formate and by-product sodium nitrate or sodium nitrite |
| 08/06/2008 | CN101234768A Method for producing potassium nitrate by sodium nitrate and potassium chloride double decomposition reaction |
| 07/30/2008 | CN101229922A Method for abstracting potassium from straw by microwave technique |
| 07/02/2008 | CN100398443C Method for preparing potassium nitrate and ammonia chloride by double decomposition |
| 06/26/2008 | US20080153735 removing a urine odor from textile by applying a mixture of oxidizing agent selected from sodium nitrate, sodium nitrite and adipic acid buffering agent; without bleaching or discoloring the textile; antisoilants |
| 06/19/2008 | WO2008071205A1 Multinary salt system for storing and transferring thermal energy |
| 06/17/2008 | CA2597179C Process for the production of cesium compounds |
| 06/11/2008 | CN101195595A Method for recycling dimethyl sulfone and sodium nitrate from dimethyl sulfoxide waste slag |
| 05/28/2008 | EP1924540A2 Method for separating compound-forming chiral systems |
| 05/28/2008 | CN101186318A Method for preparing sodium nitrate by using nitric acid to decompose phosphorus ore byproduct calcium nitrate |
| 05/21/2008 | CN201062204Y Equipment for preparing NaNO3 by chilisaltpeter multi-stage reverse-flow leaching |
| 05/21/2008 | CN101182014A Preparation technique of potassium nitrate |
| 05/21/2008 | CN101182013A Method for producing sodium nitrate by chilisaltpeter ore |
| 05/21/2008 | CN101181985A Method for producing calcium hydrophosphate and sodium nitrate by decomposing phosphorus ore with nitric acid |
| 05/14/2008 | CN101177287A Method for producing potassium nitrate by chilisaltpeter ore transformation process |
| 04/30/2008 | CN101168444A Technique for producing sodium nitrate by chilisaltpeter adverse current circulation leaching |
| 03/19/2008 | CN101143731A Vacuum crystallization technique for producing potassium nitrate from potassium chloride by sodium nitrate |
| 03/12/2008 | CN100374372C Process for preparing potassium nitrate by double decomposition method |
| 11/27/2007 | CA2336607C Method for manufacturing a calcium nitrate melt and products thereof |
| 11/14/2007 | CN101070168A Method for producing sodium nitrate |
| 11/14/2007 | CN101070167A Potassium nitrate preparing technology |
| 09/26/2007 | CN101041445A Method for preparing potassium salt by polarity solvent extraction process |
| 06/28/2007 | WO2007023129B1 Method for separating compound-forming chiral systems |
| 05/30/2007 | CN1318303C Method for preparing potassium nitrate using nitric acid conversion method |
| 05/10/2007 | WO2007023129A3 Method for separating compound-forming chiral systems |
| 03/21/2007 | EP1763357A1 Using organic and/or inorganic potassium and its salts to treat autoimmune and other health disorders and methods of administering the same |
| 03/07/2007 | CN1302992C Method for making potassium nitrate using magnesium hydroxide circular reaction method |
| 03/01/2007 | WO2007023129A2 Method for separating compound-forming chiral systems |
| 02/21/2007 | CN1301215C Technological process of preparing potassium nitrate and magnesium chloride |
| 01/10/2007 | CN1891629A Method for preparing potassium nitrate and ammonia chloride by double decomposition |
| 09/06/2006 | CN1827526A Process for preparing potassium nitrate by double decomposition method |
| 05/03/2006 | CN1765746A Method for making potassium nitrate using magnesium hydroxide circular reaction method |
| 02/22/2006 | CN1736870A Method for preparing potassium nitrate using nitric acid conversion methdo |
| 12/14/2005 | CN1706748A Potassium chloride and calcium nitrate double decomposing-freezing process of producing potassium nitrate |
| 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 |
| 09/28/2005 | CN1673083A Technological process of preparing potassium nitrate and magnesium chloride |
| 09/28/2005 | CN1220632C Purification process of potassium nitrate for producing chemical toughened glass |
| 08/17/2005 | CN1214989C Cleaning production method of chromic acid anhydride |
| 06/28/2005 | US6911188 Producing alkali metal nitrate and phosphate in same process from phosphate and nitrate raw materials by reacting raw materials to provide nitrophosphate feed, exchanging cations in feed with alkali metal ions present on resin, crystallizing |
| 06/08/2005 | CN1205125C Preparation method of granular sodium nitrate |
| 05/04/2005 | CN1199723C Method for prodn. of potassium nitrate by using sea water and amonium nitrate as raw materials |
| 03/30/2005 | CN1194893C Three-step circular metathesis process of producing potassium nitrate |
| 02/16/2005 | CN1189395C Potassium nitrate anticaking agent |
| 01/05/2005 | CN1559904A Purification process of potassium nitrate for producing chemical toughened glass |
| 12/29/2004 | CN1182024C Method for manufacturing granulated sodium nitrite |
| 07/14/2004 | CN1512966A Methods of making cesium salts and other alkali metal salts |
| 05/26/2004 | CN1151068C Process for preparing potassium nitrate by metathesis method |
| 05/05/2004 | CN1493525A New cleaning technology of chromic acid anhydride and nitric acid anhydride joint production |
| 03/02/2004 | US6699584 Nitric acid-based salt granule and aggregate thereof |
| 02/04/2004 | CN1137050C Process for increasing concentration of solid-phase potassium nitrate and quality of resultant potassium nitrate |
| 01/14/2004 | CN1467156A Potassium nitrate anticaking agent |
| 01/02/2004 | EP1373141A1 Methods of making cesium salts and other alkali metal salts |
| 11/25/2003 | US6652820 Reacting cesium sulfate containing solution with lime to form solution comprising cesium hydroxide and residue comprising calcium sulfate; removing residue from solution; converting the cesium hydroxide in solution to cesium salt |
| 11/04/2003 | US6641638 Process for nitrogen oxide waste conversion to fertilizer |
| 10/01/2003 | CN1122639C Method for preparing sodium 15-N-nitrite |
| 09/24/2003 | EP1235743B1 Production of two alkali metal salts by a combined ion exchange and crystallisation process |
| 07/17/2003 | US20030133862 Production of two alkali metal salts by a combined ion exchange and crystallisation process |
| 06/19/2003 | US20030113537 Nitric acid-based salt granule and aggregate thereof |
| 05/21/2003 | CN1418816A Method for prodn. of potassium nitrate by using sea water and ammonium nitrate as raw materials |
| 03/05/2003 | CN1400165A Industrial sodium nitrate new product and its preparation method |
| 03/05/2003 | CN1400161A Industrial sodium nitrite new product and its preparation method |
| 01/01/2003 | CN1388065A Three-step circular metathesis process of producing potassium nitrate |
| 10/30/2002 | CN1093516C Process for preparing bittern mirabilite and separating anhydrous sodium |
| 10/10/2002 | WO2002079089A1 Methods of making cesium salts and other alkali metal salts |
| 10/03/2002 | US20020143209 Reacting cesium sulfate containing solution with lime to form solution comprising cesium hydroxide and residue comprising calcium sulfate; removing residue from solution; converting the cesium hydroxide in solution to cesium salt |
| 10/02/2002 | CN1371864A Novel method for preparing potassium nitrate by utilizing salt lake potassium resource and nitratine |
| 09/04/2002 | EP1235743A1 Production of two alkali metal salts by a combined ion exchange and crystallisation process |
| 07/16/2002 | US6419887 Mixing with sulfuric acid |
| 02/07/2002 | WO2001077019A3 A process for the production of potassium nitrate |
| 10/18/2001 | WO2001077019A2 A process for the production of potassium nitrate |
| 09/19/2001 | EP0904251B1 A process for producing high-purity potassium salts |