Patents for C01D 17 - Rubidium, caesium, or francium compounds (266)
07/2004
07/14/2004CN1512966A Methods of making cesium salts and other alkali metal salts
07/13/2004CA2176744C Method of preparing a caesium and rubidium salt solution
05/2004
05/19/2004EP1171384A4 Proton conducting membrane using a solid acid
05/13/2004WO2004027783A3 Method of confining caesium and/or rubidium in sintered ceramic matrices based on expanded perlite, matrices used and products thus obtained
04/2004
04/07/2004CN1486643A Cigarette Processing method for lowering benzo[a] pyrene content in smoke
04/07/2004CN1486642A Method of optimizing tobacco leaf as upper tobacco material
04/01/2004WO2004027783A2 Method of confining caesium and/or rubidium in sintered ceramic matrices based on expanded perlite, matrices used and products thus obtained
01/2004
01/02/2004EP1373141A1 Methods of making cesium salts and other alkali metal salts
11/2003
11/25/2003US6652820 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
08/2003
08/06/2003CN1117030C Adsorbent for cesium ion and method or making and using
07/2003
07/30/2003EP0819098B1 Process for the production of cesium compounds
07/24/2003US20030139281 Immobilization, confining radioactive material
05/2003
05/21/2003CN1108985C Preparation method of lithium hexafluorophosphate
04/2003
04/23/2003CN1106345C Method for production of cesium salt
01/2003
01/09/2003US20030008190 For use in electrochemical device; electroconductivity; impermeable to fluids such as gas and water, can operate without hydration
11/2002
11/06/2002EP1254942A2 Drilling fluid containing caesium compounds
10/2002
10/24/2002US20020156321 Passing fluorine and carbon dioxide through a fluorination catalyst
10/22/2002US6468684 Proton conducting membrane using a solid acid
10/10/2002WO2002079089A1 Methods of making cesium salts and other alkali metal salts
10/03/2002US20020143209 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
09/2002
09/18/2002EP0909447B1 method for producing nickel or cobalt hexacyanoferrates
08/2002
08/20/2002US6436879 Drilling fluid of cesium formate having a substantially reduced level of divalent and multivalent cation impurities and sulfate and chloride ions
05/2002
05/14/2002US6387340 Manufacturing method for lithium hexafluoro phosphate
04/2002
04/10/2002CN1082383C Process for separating cesium from industrial streams contg. other alkali metals using poly(hydroxyarylene) polymeric resins
04/09/2002CA2204112C Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
04/03/2002EP0789608B1 Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
02/2002
02/27/2002EP1181246A1 Method for activating mineral fluoride in an organic medium
01/2002
01/16/2002EP1171384A2 Proton conducting membrane using a solid acid
10/2001
10/18/2001WO2000045447A9 Proton conducting membrane using a solid acid
05/2001
05/29/2001CA2149138C Process of preparing a caesium and rubidium salt solution having a high density
04/2001
04/12/2001WO2000045447A8 Proton conducting membrane using a solid acid
04/10/2001US6214234 Using aqueous solution of hexacyanoferrate salt
04/10/2001CA2161245C Process of preparing cesium salts from cesium-aluminum-alum
11/2000
11/16/2000WO2000045447A3 Proton conducting membrane using a solid acid
10/2000
10/05/2000WO2000058215A1 Method for activating mineral fluoride in an organic medium
10/05/2000CA2366448A1 Method for activating mineral fluoride in an organic medium
08/2000
08/23/2000CN1055677C Method of preparing caesium salts from caesium aluminium alum
08/16/2000CN1263047A Preparation method of lithium hexafluorophosphate
08/03/2000WO2000045447A2 Proton conducting membrane using a solid acid
07/2000
07/25/2000US6093664 Adsorbent for metal ions and method of making and using
07/13/2000DE19963399A1 Production of lithium hexafluorophosphate useful in lithium ion secondary battery or lithium polymer battery uses anhydrous hydrogen fluoride dried with fluorine gas in reaction with phosphorus pentachloride and lithium chloride
06/2000
06/07/2000EP0885169B1 Adsorbent for cesium ion and method of making and using
06/06/2000CA2188723C Thermally-driven ion-exchange process for lithium recovery
04/2000
04/04/2000US6046131 Method for the preparation of a cesium-separating sorbent
01/2000
01/18/2000US6015535 Process for producing purified cesium compound from cesium alum
11/1999
11/10/1999CN1046253C Method for preparing caesium and ribidium salt solution
08/1999
08/31/1999US5945037 Optical polarizer material
08/10/1999US5935380 Spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield
07/1999
07/27/1999CA2015057C Recovery of cesium chloride from pollucite ore
07/20/1999US5926687 Crown calix |4| arenes, their preparation process and their use for the selective extraction of cesium and actinides
06/1999
06/08/1999US5910294 Ozone depleting nitrogen difluoride removed from gas in form of metal halides, carbon dioxide and nitrogen gas
05/1999
05/04/1999US5900221 Process of preparing a solution of cesium and rubidium salts
04/1999
04/21/1999EP0909447A1 Method for cesium removal from radioactive waste liquids and method for producing hexacyanoferrates
04/14/1999CN1214026A Adsorbent for cesium ion and method or making and using
02/1999
02/23/1999US5875407 Method for synthesizing pollucite from chabazite and cesium chloride
12/1998
12/23/1998EP0885169A1 Adsorbent for cesium ion and method of making and using
11/1998
11/10/1998US5833844 Thermally-driven ion-exchange process for lithium recovery
10/1998
10/21/1998EP0789608A4 Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
08/1998
08/04/1998US5789496 Contacting with phenol-formaldehyde polymers for salt formation and as ligands
07/1998
07/01/1998CN1186480A Production of cesium compounds
06/1998
06/10/1998CN1038668C Process for producing a caesium and rubidium salt solution with high density
01/1998
01/21/1998EP0819098A1 Process for the production of cesium compounds
01/07/1998EP0695286B1 Method of preparing caesium salts from caesium aluminium alum
12/1997
12/31/1997WO1997050092A1 Method for cesium removal from radioactive waste liquids and method for producing hexacyanoferrates
12/16/1997US5698169 Methods and agents for the extraction of cesium and strontium from nuclear waste
11/1997
11/12/1997CN1164830A Process for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
10/1997
10/28/1997US5681477 Variations in temperature
10/01/1997EP0695304B1 Calix[4]arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides
09/1997
09/12/1997WO1997032816A1 Adsorbent for cesium ion and method of making and using
09/09/1997US5666642 Extraction of cesium and strontium ions from nuclear waste
09/09/1997US5666641 Preparation and use of polymeric materials containing hydrophobic anions and plasticizers for separation of cesium and strontium
08/1997
08/27/1997CN1157800A Thermally-driven ion-exchange process for lithium recovery
08/20/1997EP0789608A1 Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
08/12/1997US5656702 Water pollution control
05/1997
05/02/1997EP0770427A2 Thermally-driven ion-exchange process for lithium recovery
05/02/1997EP0668845B1 Process for producing a high-density caesium and rubidium salt solution
04/1997
04/09/1997EP0729438B1 Method of preparing a caesium and rubidium salt solution
04/03/1997WO1996039702A3 Methods and agents for the extraction of cesium and strontium from nuclear waste
02/1997
02/25/1997US5605669 Reacting cesium aluminum alum with calcium hydroxide and a calcium salt
02/11/1997US5603074 Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents
02/11/1997US5601722 Converting anion exchange resin to hexacyanoferrate/ii/ form, washing with water, adding aqueous copper salt solution to form insoluble copper hexacyanoferrate in pores, oxidizing, reducing in presence of monovalent cations, copper ions
01/1997
01/14/1997US5593650 Method for producing a high-density saline cesium and rubidium solution
12/1996
12/12/1996WO1996039702A2 Methods and agents for the extraction of cesium and strontium from nuclear waste
12/03/1996US5580490 Crystallites of cerium/lanthanum/terbium phosphates from insoluble rare earth salts
11/1996
11/20/1996CN1136306A Method of preparing a caesium and ribidium salt solution
10/1996
10/24/1996WO1996033132A1 Extraction of cesium and strontium ions from nuclear waste
10/10/1996WO1996031435A1 Process for the production of cesium compounds
09/1996
09/04/1996EP0729438A1 Method of preparing a caesium and rubidium salt solution
05/1996
05/17/1996WO1996014125A1 Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
05/01/1996CN1121705A Method of preparing caesium salts from caesium aluminium alum
04/1996
04/09/1996US5505924 Multistage countercurrent recrystallization process and apparatus for performing same
02/1996
02/07/1996EP0695304A1 Calix 4 arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides
02/07/1996EP0695286A1 Method of preparing caesium salts from caesium aluminium alum
10/1995
10/24/1995US5460980 Process for forming a phosphor
08/1995
08/30/1995EP0668845A1 Process for producing a high-density caesium and rubidium salt solution.
06/1995
06/14/1995DE4342219A1 X=ray image intensifier
05/1995
05/26/1995WO1995013986A1 Method of preparing a caesium and rubidium salt solution
04/1995
04/05/1995CN1101079A Process of preparing a caesium and rubidium salt solution having a high density
03/1995
03/29/1995EP0645778A1 Process for forming a phosphor
03/28/1995CA2131243A1 Process for forming a phosphor
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