Patents for C01G 23 - Compounds of titanium (11,177)
05/1991
05/01/1991CN1051027A Method for producing particulate titanium dioxide
04/1991
04/30/1991US5011674 Method of producing titanium oxides
04/30/1991CA1283647C Layered silicates and their synthesis
04/30/1991CA1283646C Layered metal oxides containing interlayer oxides and their synthesis
04/28/1991CA2024547A1 Process and apparatus for concentrating a liquid which contains sulfuric acid and water
04/24/1991EP0424058A1 Method for producing particulate titanium oxides
04/23/1991US5009879 Opacifier for vitreous enamels
04/23/1991US5009876 Pyrolysis of barium titanyl oxalate, made from oxalic acid, barium chloride, titanium oxychloride
04/17/1991EP0422386A1 Process for preparing a superconductor based on oxalate
04/17/1991CA2019387A1 Method for producing particulate titanium oxides
04/09/1991US5006175 High infra red reflecting brown rutile pigment compositions
03/1991
03/27/1991EP0418632A1 Process for the preparation of titanium dioxide
03/26/1991US5002646 Method for making titanium nitride
03/20/1991CN1012059B Method and equipment for continuous washing of titanium dioxide hydrates
03/17/1991CA2025456A1 Process for the preparation of titanium dioxide
03/12/1991US4999181 Method of manufacturing titanium dioxide powder
03/07/1991WO1991002697A1 Method of producing pulverized perovskite compound
02/1991
02/27/1991EP0413824A1 Production of spherical particulate titanium oxide
02/20/1991EP0413564A2 Formation of polymeric metal oxide materials
02/07/1991WO1991001355A1 Moisture resistant sodium titanate and potassium titanate
02/06/1991EP0411053A1 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalcogenide
01/1991
01/29/1991US4988495 Process for the recorvery of sulphuric acid in the production of titanium dioxide
01/22/1991US4987012 Maintaining constant ph during alkaline hydrolysis of metal alkoxide in seeded dispersion
01/22/1991US4986742 Extraction of titanyl sulfate with an organophosphorus compound
01/16/1991EP0408326A1 Method for manufacturing a composite oxide thin film
01/15/1991US4985380 Method of making thin refractory flakes
01/09/1991EP0406605A1 Process for the calcination of filter cakes in directly heated rotary furnaces
01/08/1991US4983374 Methods for forming titanium calcium oxide and zirconium calcium oxide
01/02/1991CA1278417C Process for manufacture of metal oxide
01/01/1991US4981819 Phase transfer catalyst
12/1990
12/30/1990CA2020013A1 A process for the calcination of filter cakes in directly heated rotary kilns
12/27/1990EP0403473A1 Process for preparing monodisperse titania spheres
12/27/1990CA1278169C Process for the production of titanium dioxide pigments
12/26/1990CN1048080A Mfg. method of material and element having positive temp. coefficient for vehicles under cold-starting
12/25/1990US4980333 Perovskite-related layered oxides containing interspathic polymeric oxide
12/14/1990WO1990015775A1 Method of hydrolyzing metal halides
12/14/1990CA2034004A1 Method of hydrolyzing metal halides
12/12/1990CN1010770B Process for preparing pigmentary titanium dioxide
11/1990
11/12/1990WO1990013614A1 Production of acid soluble titania
11/07/1990EP0396389A1 Production of aluminum master alloy rod
11/06/1990US4968498 Hydrolysis of alcoholate in presence of acid or derivative
11/06/1990CA1275783C Preparation of unagglomerated metal oxide particles with uniform particle size
10/1990
10/24/1990EP0393857A1 Coated titanium dioxide particles, process for producing them and their use
10/24/1990EP0393430A2 Process for the preparation of titanium dioxide
10/22/1990WO1990012755A1 Preparation of thin film ceramics by sol gel processing
10/22/1990CA2065381A1 Preparation of thin film ceramics by sol gel processing
10/20/1990CA2013224A1 Particulate material
10/17/1990CA2014485A1 Process for the production of titanium dioxide
10/10/1990EP0391448A2 Method for production of powder of fine inorganic particles
10/10/1990EP0391447A2 Method for production of inorganic oxide particles
10/09/1990US4961889 Process for producing inorganic fiber
10/04/1990WO1990011249A1 Method of obtaining complex oxides
10/03/1990CN1045762A Process for producing sub-micron ceramic powders of perovskite compounds with controlled stoichiometry and particle size
09/1990
09/25/1990CA1274375A1 Process for the preparation of ticl.sub.4
09/18/1990US4957888 Method of manufacturing ceramic powders having the perovskite structure
09/13/1990DE3938692C1 Prodn. of titanium di:oxide using the sulphate process - includes using sulphuric acid, wash water, etc. contg. specified total max. levels of chloride and calcium ions to prevent corrosion
09/07/1990WO1990009963A1 Production of spherical particulate titanium oxide
09/07/1990WO1990009844A1 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalcogenide
09/05/1990EP0261590B1 Process for the preparation of metal oxides or mixed metal oxides
09/04/1990US4954476 Method of making catalysts from titanium oxide
08/1990
08/29/1990EP0272306B1 Oligomerization of olefins
08/29/1990EP0271563B1 Layered silicates and their synthesis
08/29/1990EP0270659B1 Layered metal oxides containing interlayer oxides and their synthesis
08/22/1990EP0257373B1 Process for the preparation of titanium dioxide pigments
08/22/1990EP0180900B1 Process for the adjustment of the structure and/or surface characteristics of oxidized materials
08/16/1990EP0382310A2 Process for preparing monoliths of aerogels of metal oxides
08/08/1990CN1009079B Prodn. of titanium
08/07/1990US4946810 Preparation of ABO3 compounds from mixed metal aromatic coordination complexes
07/1990
07/31/1990US4944936 Titanium dioxide with high purity and uniform particle size and method therefore
07/24/1990US4943419 Process for recovering alkali metal titanium fluoride salts from titanium pickle acid baths
07/04/1990EP0376508A1 Process for producing submicron ceramic powders of perovskite compounds with controlled stoichiometry and particle size
07/04/1990EP0376453A1 The oxidation of saturated hydrocarbon chains
07/04/1990EP0376216A1 Titanium dioxide aggregates, process for producing same and electrophotographic photosensitive material containing same
07/04/1990EP0376031A2 Process for the recovery of sulfuric acid in the production of titanium dioxide
06/1990
06/28/1990WO1990006898A1 Extraction and purification of titanium products from titanium bearing minerals
06/27/1990EP0375594A1 Preparation of thin films of ferroelectric materials
06/27/1990EP0374754A1 Coating composition and a process for manufacturing the same
06/27/1990CN1043296A Titanium oxide with stable properties
06/26/1990US4937219 Oxidation or reduction catalyst, inflammable gas sensor
06/26/1990US4937213 Process for preparing titanates and zirconates
06/26/1990US4937064 Reaction titanium tetra chloride with oxygen and cooling; antiagglomeration
06/26/1990US4937062 High speed atomizing of metal salt solution into very hot gases in reactor; conversion to oxides
06/24/1990CA2006396A1 Process for the recovery of sulphuric acid in the production of titanium dioxide
06/14/1990WO1990006291A1 Process for producing sub-micron ceramic powders of perovskite compounds
06/13/1990CN1008356B Preparation of rutile type pigment titanium white by high activity crystal
06/13/1990CA2005305A1 Electrically conductive zirconia-based sintered body and process for the production thereof
06/09/1990CA2004984A1 Process for producing sub-micron ceramic powders of perovskite compounds with controlled stoichiometry and particle size
06/06/1990EP0371343A1 Titanium dioxide, process for its preparation and use thereof
06/06/1990EP0371329A2 Titanium dioxide, process for its preparation and its use
06/06/1990EP0371152A1 Metal oxide powders, their mixtures, mixed metal oxide powders, their mixtures and use thereof for the catalytic dehydrogenation of hydrocarbons
06/05/1990US4931213 Reducing titania with metal-intercalated graphite; corrosion resistant ceramic recovered
06/05/1990EP0305502A4 Process for the production of group ivb transition metal-alkali metal-fluoride salts and purification thereof.
06/05/1990CA1270001A1 Oligomerization of olefins
05/1990
05/30/1990EP0370701A1 Method for making pigment flakes
05/30/1990CN1042527A Treatment for waste acid
05/29/1990US4929587 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalcogenide by treatment with polymeric chalcogenide precursor in inert atmosphere
05/29/1990US4929575 Melt processable, green, ceramic precursor powder
05/29/1990US4929381 Inorganic anion exchangers and preparation thereof
05/29/1990CA2003935A1 Titanium dioxide, a process for its production and its use
05/29/1990CA2003932A1 Titanium dioxide, a process for its production and its use