| Patents for C01G 25 - Compounds of zirconium (4,186) |
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| 09/06/1988 | US4769351 Hydrothermal process for preparing zirconia-alumina base ultra-fine powders of high purity |
| 08/31/1988 | EP0280673A2 Method for production of inorganic minute globular particles |
| 08/31/1988 | EP0280033A1 Process for producing perovskite-type oxides of the abo3 type |
| 08/30/1988 | US4767798 Yttrium fluoride or alkaline earth hexafluoro-zirconate, -titanate or -hafnate |
| 08/23/1988 | US4765970 Flaky zirconia type fine crystals and methods of producing the same |
| 08/16/1988 | US4764497 Amorphous, spherical inorganic compound and process for preparation thereof |
| 08/16/1988 | US4764357 Heating metal oxide with compounde which decomposes to gas |
| 08/16/1988 | US4764352 Process for preventing the extraction of technetium and/or rhenium, particularly during the extraction of uranium and/or plutonium by an organic solvent |
| 08/10/1988 | CN87107765A Super conductivity in squar-planar compound systems |
| 08/09/1988 | CA1240109A1 Process for producing inorganic fiber |
| 07/20/1988 | CN87100207A Preparing zirconium oxide from zircon |
| 07/14/1988 | WO1988005029A1 Superconductivity in square-planar compound systems |
| 07/05/1988 | US4755365 Method of producing high purity zirconia powder from zircon powder |
| 06/30/1988 | DE3743096A1 Chlorierung metallurgischer zusammensetzungen Chlorination metallurgical compositions |
| 06/29/1988 | EP0272294A1 Preparation of hydrolysed zirconium salt precursors and high purity zirconia. |
| 06/29/1988 | CN87108130A Chlorination of metallurgical composites |
| 06/29/1988 | CN87104006A Barium titanate coforms |
| 06/28/1988 | US4753787 Method and structure for forming a reaction product |
| 06/21/1988 | US4752454 Heating hydrated fluoride of zirconium, thorium, hafnium, ytterium, scandium or rare earth metal in reactive vapors of hydrofluoric acid, carbon dioxide and a fluoroalkane |
| 06/15/1988 | EP0270637A1 Manufacture of high purity zirconia from low-silica zirconiferous materials. |
| 06/14/1988 | US4751070 Low temperature synthesis |
| 06/14/1988 | CA1237870A1 Spray-dried inorganic oxides from non-aqueous gels or solutions |
| 06/07/1988 | US4749664 Emulsion-char method for making fine ceramic powders |
| 06/07/1988 | US4749448 Reduced solvent viscosity; low temperature stripping, corrosion resistance, minimal carryover |
| 05/24/1988 | US4746497 Process for the production of high purity zirconia |
| 05/24/1988 | US4746468 Suspension, drying, roasting |
| 05/18/1988 | EP0267449A1 Synthesis of partially-stabilized tetragonal zirconia |
| 05/17/1988 | US4744973 Boron, silicon, zirconium polymerized |
| 05/05/1988 | WO1988003128A1 Process for the production of zirconium sulphate |
| 04/18/1988 | EP0253818A4 Purification of zirconium compounds. |
| 04/13/1988 | EP0263544A1 Process for the production of a powder for ceramic materials, containing at least one metal oxide, and a powder of at least one metal oxide obtained by this process |
| 04/12/1988 | US4737244 Zirconium and hafnium tetrachloride separation by extractive distillation with molten zinc chloride lead chloride solvent |
| 04/06/1988 | EP0262579A2 Process for manufacturing fine zirconium oxide powder |
| 03/30/1988 | EP0261590A2 Process for the preparation of metal oxides or mixed metal oxides |
| 03/29/1988 | US4734104 Blend of superior and inferior grains |
| 03/24/1988 | WO1988001990A1 Improved binders for refractories |
| 03/15/1988 | US4731234 Process for producing zirconium sols and gels, and process for producing zirconia using the same |
| 02/24/1988 | EP0256831A2 Preparation of antiperspirants |
| 02/11/1988 | DE3710975A1 Verfahren zur herstellung einer keramikzusammensetzung A process for preparing a ceramic composition |
| 02/10/1988 | EP0255702A2 Process for preparing fine particles of metal oxides |
| 02/02/1988 | US4722833 Fine coagulated particles of ultrafine monoclinic zirconia crystals oriented in a fiber bundle-like form and method of manufacturing them |
| 01/27/1988 | EP0254641A1 Process for the preparation of metalfluorides which can be used for manufacturing fluoride glasses |
| 01/27/1988 | EP0253818A1 Purification of zirconium compounds |
| 01/21/1988 | EP0205443A4 Treatment of zircon. |
| 01/20/1988 | EP0253570A2 Method and structure for forming a reaction product |
| 01/20/1988 | EP0253552A2 Preparation of unagglomerated metal oxide particles with uniform particle size |
| 01/12/1988 | US4719091 Boasting |
| 01/07/1988 | EP0251589A2 Synthesis of crystalline binary oxides |
| 01/07/1988 | EP0251538A2 Preparation of mono-sized zirconia powders |
| 01/07/1988 | EP0251537A2 Preparation of high purity homogeneous zirconia mixtures |
| 01/07/1988 | EP0210236A4 Process for the production of high purity zirconia. |
| 12/30/1987 | WO1987007915A1 Manufacture of high purity zirconia from low-silica zirconiferous materials |
| 12/30/1987 | WO1987007885A1 Preparation of hydrolysed zirconium salt precursors and high purity zirconia |
| 12/30/1987 | CN87104300A Production of high purity zirconia from zirconiferous materials |
| 12/15/1987 | US4713233 Pore size catalyst |
| 12/01/1987 | US4710227 Hydrolyzing two alkoxides to form mixed oxide dispersion |
| 11/25/1987 | EP0246761A1 Preparation of high purity zirconia and zirconia mixtures from zirconium carbonate |
| 11/19/1987 | DE3714911A1 Process for preparing a slurry of an ultra-fine powder based on zirconium oxide/aluminium oxide |
| 11/12/1987 | DE3714819A1 Cosynthetisierte zusammensetzungen auf der basis von bariumtitanat Cosynthetisierte compositions based on barium titanate |
| 11/10/1987 | US4705762 Process for producing ultra-fine ceramic particles |
| 10/28/1987 | CN87100809A High dispersion gel or sol of monoclinic zirconium dioxide supermicrocrystallite and process for preparing them |
| 10/21/1987 | EP0241647A2 Basic products for the manufacture of ceramic materials |
| 10/14/1987 | EP0241329A1 Process for the preparation of stabilized submicronic zirconia from zirconium fluosulfate, and use of the obtained stabilized zirconia in ceramic compositions |
| 09/29/1987 | US4696810 Wet process for the production of a readily sinterable powder material of perovskite or its solid solution |
| 09/24/1987 | DE3706172C1 Process for preparing a stabilised zirconium oxide powder suitable for plasma-spraying, and use thereof |
| 09/23/1987 | EP0238103A1 Process for manufacturing a metal oxide powder for ceramic materials. |
| 09/23/1987 | EP0238025A2 X-ray opaque polymerisable dental materials |
| 09/23/1987 | EP0237640A2 Method for production of ceramic composition |
| 09/22/1987 | US4695439 Yttrium oxide stabilized zirconium oxide |
| 09/16/1987 | EP0236952A2 A method for producing a flaky material |
| 09/02/1987 | EP0234816A2 Processes for preparing mono-dispersed particles |
| 09/02/1987 | EP0234647A2 Process for making vitreous metallic oxides |
| 09/02/1987 | CN86108381A Fine coagulated particles of ultrafine monoclinic zirconia crystals oriented in fiber bundle-like form and method of manufacturing them |
| 09/01/1987 | CA1226225A1 Permanent wave neutralizer composition and process |
| 08/26/1987 | EP0233343A1 Fine coagulated particles of ultrafine monoclinic zirconia crystals oriented in a fiber bundle-like form and method of manufacturing them |
| 08/18/1987 | US4687643 Hydrated metal oxides; calcined |
| 08/18/1987 | US4686774 Method for dehydration of a composition of a fine powder and water |
| 08/12/1987 | EP0232094A2 Chemical preparation of zirconium-aluminum-magnesium oxide composites |
| 08/05/1987 | CN87100401A Process for the manufacture of a metal oxide powder for ceramic materials and metal oxide powder produced by this process |
| 07/22/1987 | EP0229657A1 High-dispersion sol or gel of monoclinic zirconia supermicrocrystals and a process for its production |
| 07/15/1987 | CN86107671A Transparent non-vitreous zirconia microspheres |
| 06/10/1987 | EP0225184A2 Inorganic polymeric cationic ion exchange matrices |
| 06/03/1987 | EP0224375A2 Transparent non-vitreous zirconia microspheres |
| 05/12/1987 | US4665040 Alumina-zirconia ceramic powders and a method of making the same |
| 05/12/1987 | US4664894 Continuous addition of alkali in flow type system at fixed ph |
| 04/21/1987 | US4659352 Removing anion impurities from fluorozirconate glass; fluorine reactive gas treatment |
| 04/01/1987 | EP0216649A2 Method and system for manufacturing fine-grained silicon monoxide |
| 03/31/1987 | US4654075 For ceramics |
| 03/31/1987 | US4654048 Metal oxide or carbide, salts, emulsification, immiscibility, microdrops, drying, heat treatment |
| 03/25/1987 | CN85106679A Transparent non-vitreous ceramic particulate |
| 03/24/1987 | US4652438 Chemical vapor purification of fluorides |
| 03/18/1987 | EP0214308A1 Method for preparing super-fine spherical particles of metal oxide |
| 03/10/1987 | US4649037 Hydrolyzing oranometallic compound with water in an organic solvent |
| 03/10/1987 | US4649030 Solvent extraction; sulfuric acid; alkali metal, thallium or ammonium sulfate |
| 02/26/1987 | DE3529688A1 Process for producing a heat-resistant material, in particular for use in machine construction and machine tool construction |
| 02/18/1987 | CN86104600A Flaky zirconia type fine crystals and method of producing them |
| 02/17/1987 | US4643984 Process for producing a composition which includes perovskite compounds |
| 02/17/1987 | CA1217918A1 Method for manufacturing fine powder of barium zirconate |
| 02/10/1987 | US4642207 Process for producing ultrafine particles of ceramics |
| 02/04/1987 | EP0210236A1 Process for the production of high purity zirconia |