| Patents for C01F 17 - Compounds of the rare-earth metals, i.e. scandium, yttrium, lanthanum, or the group of the lanthanides (4,902) |
|---|
| 04/22/1997 | US5622679 Extraction of rare earth elements using alkyl phosphinic acid or salt/tetraalkylammonium salt as extractant |
| 04/16/1997 | CN1147501A Producing process for rare earth oxide |
| 04/09/1997 | EP0767141A1 Process for preparing precipitate of metal oxide |
| 04/08/1997 | US5618472 Vitrified glass or tungsten bronze for storing radioactive waste material |
| 04/08/1997 | US5618406 Processes for reacting bastnaesite with alkaline-earth metals |
| 03/27/1997 | WO1997011031A1 Rare-earth and alkali sulphide, method for preparing same and use thereof as a pigment |
| 03/26/1997 | EP0764042A1 Fluid extraction |
| 03/19/1997 | EP0762918A1 Fluid extraction of metals and/or metalloids |
| 03/19/1997 | CN1145332A Compound based on yttrium or holmium which is redispersible in form of sol |
| 03/06/1997 | WO1997007917A1 Process for the production of ultrafine particles |
| 03/04/1997 | US5607892 Treatment or conversion of exhaust gases from internal combustion engines |
| 02/27/1997 | WO1997007057A1 Method for producing anhydrous rare earth chlorides |
| 02/26/1997 | CN1143609A Superfine rare-earth-transition metal alloy and preparation of permanent-magnetic material thereof |
| 02/25/1997 | CA2044457C Alumina-based composition for catalyst and production process thereof, catalyst and production process thereof |
| 02/05/1997 | EP0712332A4 Processes for reacting bastnaesite with metal oxides |
| 02/05/1997 | CN1141882A Method for crystallizing and sedimenting rare-earth carbonate |
| 02/04/1997 | US5599588 Hydrolyzing a homogeneous solution of an alkaline earth or rare earth haloalkoxide in an anhydrous solvent; low temperature |
| 01/29/1997 | CN1141271A Translucent polycrystalline alumina and method of making same |
| 01/29/1997 | CN1033913C Method for prepn. of epoxy unsaturated high-grade fatty acid rare earth non-toxic stabilizing agent |
| 01/23/1997 | WO1997002212A1 Colloidale dispersion and redispersible composition in the form of a cerium oxide based colloidal dispersion |
| 01/23/1997 | CA2223842A1 Colloidale dispersion and redispersible composition in the form of a cerium oxide based colloidal dispersion |
| 01/21/1997 | US5595714 Complexing gadolinium with polyaminocarboxylic acids, acidification, adding oxalate ions, filtration the gadolinium oxalate, basification and precipitation |
| 01/15/1997 | EP0665814B1 Precursors and processes for making metal oxides |
| 12/24/1996 | US5587346 Translucent polycrystalline alumina |
| 12/18/1996 | EP0748780A1 Translucent polycrystalline alumina and method of making same |
| 12/18/1996 | EP0748767A2 Rare earth metal sulfide based compositions, their preparation and use |
| 12/18/1996 | EP0655984B1 Preparation of nanophase solid state materials |
| 12/11/1996 | EP0746406A1 Method for surface-modifying a polymeric membrane, and resulting membrane |
| 12/11/1996 | CN1137784A Composition precursor and cerium and zirconium mixed oxide based composition, method for its preparation and use thereof |
| 12/11/1996 | CN1033521C Ionic type rare earth ore in-situ lixiviation processing |
| 11/27/1996 | EP0744379A1 Redispersible yttrium or holmium based sol composition |
| 11/25/1996 | CA2177222A1 Yttrium or holmium hydroxide compound redispersable as a sol |
| 11/20/1996 | EP0743283A2 Recovery of gadolinium and its complexing agents from aqueous solutions containing their complexes |
| 11/20/1996 | CN1136061A Acrylic coatings containing inorganic UV screen |
| 11/20/1996 | CN1136016A Large specific surface area earth-rare oxides and its preparation |
| 11/06/1996 | EP0665817A4 Oxide particles and method for producing them. |
| 10/09/1996 | EP0735984A1 Composition precursor and cerium and zirconium mixed oxide based composition, method for its preparation and use thereof |
| 10/03/1996 | WO1996030029A1 Pharmaceutical composition containing selected lanthanum carbonate hydrates |
| 10/02/1996 | EP0735386A2 Optical layers with intermediate refractive index |
| 10/02/1996 | EP0735116A1 Use of terbium based compounds as colouring pigment |
| 10/02/1996 | CN1132104A Extraction of acids and metal salts from queous solutions with diethyl dodecylphosphonate |
| 09/29/1996 | CA2172776A1 Use of terbium compounds as colour pigments |
| 09/25/1996 | EP0733592A1 Process for the preparation of rare earth sulphides from halides |
| 09/25/1996 | EP0652849B1 Process for the preparation of metal sulphides |
| 09/23/1996 | CA2172333A1 Process for preparing rare earth sulfides from halides |
| 09/19/1996 | WO1996028385A1 Process for preparing precipitate of metal oxide |
| 09/19/1996 | WO1996028384A1 Yttrium and/or rare earths aluminates having perovskite structure, preparation thereof and use as pigments |
| 09/18/1996 | EP0732356A2 Acrylic coatings containing inorganic UV screen |
| 09/18/1996 | CN1032805C Preparation of rare-earth oxide ultramicro powder by carbonate precipitation method |
| 08/28/1996 | CN1129671A A high pH colloidal dispersion of a cerium compound and a process for its preparation |
| 08/13/1996 | US5545604 Calcining solid solution comprising spray dried mixture of alumina sol, magnesium compound and bastnaesite |
| 08/13/1996 | US5545386 Method for the preparation of globular particles of a rare earth oxide |
| 08/06/1996 | US5543126 Adjusting an aqueous medium containing cerium(iv) hydroxide and a nitrate to a ph of from 8 to 11 and heating under pressure |
| 07/23/1996 | US5539135 Reaction of fatty acid with hydrotalcite and other minerals, catalyst for the addition of ethylene and propylene oxides to active hydrogen compounds |
| 07/09/1996 | US5534160 Method for the re-treatment of residue generated from the removal of fluorine dissolved in waste water |
| 07/02/1996 | US5531974 Flux grown, monosize oxide particles |
| 06/25/1996 | US5529969 B.E.T. specific surface-stabilized ceria |
| 06/25/1996 | CA2070507C Ceric oxide composition, its preparation and its uses |
| 06/25/1996 | CA2032247C Process for preparing an aqueous cerium iv compound colloid dispersion and said dispersions |
| 06/19/1996 | CN1124758A Rare earth oxysulphide, a process for the preparation thereof, and use thereof as a luminophore |
| 05/30/1996 | WO1996015847A1 Method for surface-modifying a polymeric membrane, and resulting membrane |
| 05/30/1996 | DE4442077A1 Purificn. of halide such as alkali(ne earth) or rare earth halide |
| 05/29/1996 | EP0713840A1 Process for preparing metal halides by the sol-gel method |
| 05/29/1996 | CN1123249A A high concentration colloidal dispersion of a cerium compound and a process for its preparation |
| 05/22/1996 | EP0712332A1 Processes for reacting bastnaesite with metal oxides |
| 05/22/1996 | CN1122773A Method for prepn. of cerium sulfide |
| 05/21/1996 | US5518703 Production of finely divided rare earth ammonium oxalates/finely divided rare earth oxides |
| 05/07/1996 | US5514822 Precursors and processes for making metal oxides |
| 05/01/1996 | EP0709471A1 Use of diethyl dodecylphosphonate for extracting acid and metal salts from aqueous solutions |
| 05/01/1996 | CN1031703C Process for preparing double oxalate of rare earth ammonium |
| 04/27/1996 | CA2161180A1 Extraction of acids and metal salts from aqueous solutions with diethyl dodecylphosphonate |
| 04/23/1996 | US5510090 Stronger complexing with actinides(iii) makes possible thei separation from lanthanides(iii) |
| 04/23/1996 | US5510068 Titanium/zirconium/cerium oxide granular particulates/agglomerates |
| 04/17/1996 | EP0449942B1 Method for separating metal ions using phosphonic acids as complexants |
| 04/17/1996 | CN1120588A Calcining system and technique for fluidized bed-mobile bed mixed reactor |
| 04/02/1996 | US5503814 Removing sulfur oxides from fluid catalytic cracking process |
| 03/28/1996 | WO1996006700A3 Nanoscale particles, and uses for same |
| 03/26/1996 | US5501733 Rare earth metal sulfide pigments comprising fluorine values |
| 03/20/1996 | CN1118716A Dispersible rare earth-based compound, colloidal suspension obtained from this compound, the procedures for the preparation thereof, and use for the manufacture of catalysts |
| 03/14/1996 | WO1996007614A1 Very high temperature and atmospheric pressure superconducting compositions and methods of making and using same |
| 03/13/1996 | EP0700871A1 Colloidal dispersion of a cerium compound with high concentration and process for the preparation thereof |
| 03/13/1996 | EP0700870A1 Colloidal dispersions of a cerium compound with high pH, and processes for their preparation |
| 03/07/1996 | WO1996006700A2 Nanoscale particles, and uses for same |
| 03/05/1996 | US5496528 Rare earth oxides |
| 02/27/1996 | US5494647 Use of Chelex-100 for selectively removing Y-90 from its parent Sr-90 |
| 02/22/1996 | WO1996004986A1 Processes for reacting bastnaesite with alkaline-earth metals |
| 02/21/1996 | EP0642468A4 A method for preparing mixed metal oxides. |
| 02/20/1996 | US5492776 Upconversion waveguide which is capable of converting ir radiation and visible light into visible rgb-uv radiation |
| 02/20/1996 | US5492680 Extraction with sulfuric acid solution; scrubbing; stripping |
| 01/24/1996 | CN1115262A Organic adhesive of four valence oxide and application of same as hydrocarbon containing compound additive |
| 01/18/1996 | WO1996001297A1 Method of preparing small particle size phosphors |
| 01/18/1996 | CA2193856A1 Method of preparing small particle size phosphors |
| 01/17/1996 | EP0692035A1 Recovery of cerium from fluoride-containing ores |
| 01/11/1996 | WO1996000698A1 Rare earth recovery process |
| 01/03/1996 | EP0690116A1 Rare earth oxysulfide, process for its manufacturing and its use as phosphor |
| 01/03/1996 | CN1114503A Metal oxide powder and process for producing the same |
| 01/03/1996 | CN1114502A Composite metal oxide powder and process for producing the same |
| 01/03/1996 | CN1114365A Process for extracting high-valence cerium from ore leachate directly |
| 01/03/1996 | CN1114363A Process for extracting rare-earth from electrolytic slag of rare-earth chloride |
| 12/30/1995 | CA2152871A1 Rare-earth oxysulfide, process for preparing the same and use thereof as a phosphor |