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Class 423/594.17 - Vanadium (V), niobium (Nb), or tantalum (Ta) containing


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Subject matter for products or processes wherein the
No. of patents: 110
Last issue date: 05/29/2012


1      
NumberTitleIssue Date
8187567Inorganic compounds
Disclosed is a niobium suboxide powder for the manufacture of capacitors with higher break down voltages, higher temperatures of operation and elongated lifetimes. The powder is doped with nitrogen which is at least partly present in the form homogeneously distribut...
05/29/2012
8110172Methods of making a niobium metal oxide and oxygen reduced niobium oxides
Methods to at least partially reduce a niobium oxide are described wherein the process includes mixing the niobium oxide and niobium powder to form a powder mixture that is then heat treated to form heat treated particles which then undergo reacting in an atmosphere...
02/07/2012
8101151Valve metal-oxide powder and method for producing said powder
A process for the production of a valve metal oxide powder, in particular an Nb2O5 or Ta2O5 powder by continuous reaction of a fluoride-containing valve metal compound with a base in the presence of water and calcination o...
01/24/2012
8029762Porous anode bodies comprising niobium suboxide and capacitors containing such anode bodies
Porous anode bodies suitable for use in solid state capacitors, the porous anode bodies prepared by processes which include providing a niobium suboxide powder comprising niobium suboxide particles having a bulk nitrogen content of 500 to 20,000 ppm, and agglomerati...
10/04/2011
7988945Niobium monoxide
An object of the present invention is to provide a niobium monoxide able to realize large capacitance in a miniature sized capacitor. The invention relates to a niobium monoxide having a porous structure comprising particles, characterized in that the niobium monoxi...
08/02/2011
7833511Capacitor powder
Disclosed herein are capacitors having an anode based on niobium and a barrier layer based on niobium pentoxide, at least the barrier layer having a content of vanadium and process for their preparation and use. ...
11/16/2010
7727508Process for preparing powder of niobium suboxides or niobium
The present invention relates to a process for preparing powders of niobium suboxides or niobium, wherein the process comprising: mixing the niobium oxides as raw material with reducing agent, conducting a reaction at a temperature in the range of 600˜1300° C. in ...
06/01/2010
7655214Phase formation of oxygen reduced valve metal oxides and granulation methods
Valve metal suboxides having a primary suboxide phase and optionally a secondary suboxide phase, a valve metal phase, and/or at least one tertiary suboxide phase can be present in varying amounts. Also disclosed is anodes and capacitors containing the valve metal su...
02/02/2010
7618609Method to prepare defective metal oxides with increased specific capacity
Increased lithium capacity of defective oxide materials and methods for preparation are described herein. Point defects may be introduced into a metal oxide to increase its lithium ion capacity. Defective metal oxides can be prepared by heating the metal oxide under...
11/17/2009
7585486Production of high-purity niobium monoxide and capacitor production therefrom
The present invention relates to high-purity niobium monoxide powder (NbO) produced by a process of combining a mixture of higher niobium oxides and niobium metal powder or granules; heating and reacting the compacted mixture under controlled atmosphere to achieve t...
09/08/2009
7445762Method to partially reduce calcined niobium metal oxide and oxygen reduced niobium oxides
Methods to at least partially reduce a niobium oxide are described wherein the process includes heat treating the niobium oxide in the presence of a getter material and in an atmosphere which permits the transfer of oxygen atoms from the niobium oxide to the getter ...
11/04/2008
7396614Lithium and vanadium oxide, a preparation method thereof and the use of same as an active electrode material
A lithium and vanadium oxide is described having the formula Li1+xV3O8, wherein 0.1≦×≦0.25. The oxide has a monoclinic crystalline structure and comprises non-agglomerated grains in the form of monocrystalline pellets having a l...
07/08/2008
7381396Niobium suboxide powder
A niobium suboxide powder comprising 100 to 600 ppm of magnesium is described. The niobium suboxide powder may (alternatively or in addition to 100 to 600 ppm of magnesium) further include 50 to 400 ppm of molybdenum and/or tungsten. The niobium suboxide powder is s...
06/03/2008
7357910Method for producing metal oxide nanoparticles
Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal vapor, and directing the...
04/15/2008
7354472Metalothermic reduction of refractory metal oxides
A method of producing a refractory metal powder by (A) combining (i) an oxide particle component and (ii) a reducing agent; (B) forming a substantially uniform mixture of (i) and (ii); (C) continuously feeding the mixture into a furnace; (D) igniting the mixture at ...
04/08/2008
7347983Mg2MM'o 6+x, (M=Y, rare earth metal and M'=SN, OR Zr) dielectric ceramics
Complex ceramic oxides of the general formula Mg2MM′O6+x where M=Rare metal ion or Yttrium or Lanthanum and M′=Sn, Sb, Zr, Hf, Ta, and Nb; and where −0.5
03/25/2008
7341705Process for producing niobium suboxide
A method is described for preparing a niobium suboxide represented by the formula, NbOx, in which 0.7
03/11/2008
7338647Synthesis of cathode active materials
The present invention relates to a method for preparing an electroactive metal polyanion or a mixed metal polyanion comprising forming a slurry comprising a polymeric material, a solvent, a polyanion source or alkali metal polyanion source and at least one metal ion...
03/04/2008
7326398Non-silica mesoporous oxide having improved pore structure periodism, method of producing the mesoporous oxide and method of crystallizing pore wall of non-silica mesoporous oxide using template to be filled in pores
A method for preparation for mesoporous oxide comprising a non silica oxide having a hexagonal pore structure periodicity and an average maximum pore length of from 2 nm to 5 nm, characterized by comprising blending 0.003 mol to 0.01 mol of TaCl5, NbCl
02/05/2008
7323158Multiple metal oxide submicron particles
Collections of particles comprising multiple a metal oxide can be formed with average particle sizes less than about 500 nm. In some embodiments, the particle collections have particle size distributions such that at least about 95 percent of the particles have a di...
01/29/2008
7297321Supermicroporous metal oxides
A new class of supermicroporous mixed oxides, with pore sizes in the 10-20 Å range has been prepared utilizing basic metal acetates. The reactions are carried out in non-aqueous solvent media to which an excess of amine is added. Hydrolysis of the reagents is effe...
11/20/2007
7285261Preparation and application of novel chromium based nanocatalyst for gas-phase fluorination and hydrofluorination reactions
A process of reacting a metal chloride, especially chromium (III) chloride, with an alkali metal oleate at a temperature of from about 30° to about 300° C., and especially at about 70±1° C., in a solvent to form a metal oleate complex, especially a chromium-olea...
10/23/2007
7276224Synthesis of nanoporous particles
Methods of producing nanoporous particles by spray pyrolysis of a precursor composition including a reactive precursor salt and a nonreactive matrix salt are provided, wherein the matrix salt is used as a templating medium. Nanoporous aluminum oxide particles produc...
10/02/2007
7276225Process for producing niobium and tantalum compounds
A process for producing valve metal oxides, such as tantalum pentoxide or niobium pentoxide with a narrow particle size distribution within a desired particle size range, is provided. According to the process of the present invention, the valve metal fraction from d...
10/02/2007
7241911Niobium compound
The present invention relates to novel, water-soluble niobium compounds, a process for their preparation and their formulations. ...
07/10/2007
7241436Methods to partially reduce certain metal oxides and oxygen reduced metal oxides
Methods to at least partially reduce valve metal oxides are described wherein the process includes heat treating the valve metal oxide in the presence of a getter material, in an atmosphere which permits the transfer of oxygen atoms from the starting valve metal oxi...
07/10/2007
7223377Process for producing micro-mesoporous metal oxide having regulated pores formed by novel template removal method
The present invention is the method for preparation of transition metal oxide having micro-mesoporous structure whose average fine pores size is not less than 1 nm and not more than 2 nm comprising, adding and dissolving transition metal salt which is a precursor of...
05/29/2007
7220397Modified oxygen reduced valve metal oxides
Pressed material such as anodes are described and formed from oxygen reduced oxide powders using additives, such as binders and/or lubricants. Methods to form the pressed material are also described, such as with the use of atomizing, spray drying, fluid bed process...
05/22/2007
7214362Purification method for producing high purity niobium compound and/or tantalum compound
An object of the present invention is to provide a method for purifying a highly pure niobium compound and/or tantalum compound, the method enabling the purification of a highly pure niobium compound and tantalum compound in a simplified manner at a low cost. The ob...
05/08/2007
7210641Methods of making a niobium metal oxide
Methods to at least partially reduce a niobium oxide are described. In one embodiment, a milling process is described wherein the surfaces of the mill in contact with the starting metal oxide, getter material, and/or oxygen reduced metal oxide are the same as the ma...
05/01/2007
7175823Purification method for producing high purity niobium compound and/or tantalum compound
The present invention provides a method enabling the high purification of a niobium compound and/or tantalum compound in a simplified manner at a low cost. This is accomplished by providing a method enabling the high purification of a niobium compound and/or tantalu...
02/13/2007
7157063Process for the utilization of vanadium from chromium ore as vanadium (V) oxide
Process wherein the vanadium present in the chromium ore chromite is recovered as vanadium pentoxide during the course of the fusion of the chromium ore with alkali and its work-up to produce sodium chromate solution and sodium dichromate. ...
01/02/2007
7157073Production of high-purity niobium monoxide and capacitor production therefrom
The present invention relates to high-purity niobium monoxide powder (NbO) produced by a process of combining a mixture of higher niobium oxides and niobium metal powder or granules; heating and reacting the compacted mixture under controlled atmosphere to achieve t...
01/02/2007
7135141Method of manufacturing a sintered body
A method of manufacturing a sintered body, in which a material powder composed of metallic powder or alloy powder, a getter material having a higher oxidation potential than that of the material powder, and a hydride, which constitutes a hydrogen source, are sealed ...
11/14/2006
7125536Nano-structured particles with high thermal stability
This invention relates to a composition comprising nano-structured metal oxide particles (particularly, zirconia) and at least one stabilizing agent, a method to produce the composition, and a method to produce the thermally stable nano-structured particles. The met...
10/24/2006
7122168Shape anisotropic metal oxide nanoparticles and synthetic method thereof
In a metal oxide nanoparticle and a synthetic method thereof, and in particular to maghemite (γ-Fe2O3) nanoparticles usable as a superhigh density magnetic recording substance by having good shape anisotropy and magnetic characteristics, hemat...
10/17/2006
7118726Method for making oxide compounds
A method of making an oxide compound, comprising subjecting a base material to a source of heat that produces a localized temperature in the range of 2,000 to 5,500 degrees Celsius that vaporizes the base material which is drawn upward above the surface of the base ...
10/10/2006
7118727Method of making oxide particles
The present invention provides a process for producing particles, such as oxide nanoparticles, in a substantially water-free environment. The process involves mixing at least one metal compound of the formula MX(m−n) with at least one surfactant and at ...
10/10/2006
7099143Wet electrolytic capacitors
A wet electrolytic capacitor that includes an anode, cathode, and a liquid electrolyte disposed therebetween is provided. The cathode contains a metal oxide coating, such as NbO2, in conjunction with other optional coatings to impart improved properties t...
08/29/2006
6994807Electrolytic perovskites
An electrolytic perovskite and method for synthesizing the electrolytic perovskite are described herein. Basically, the electrolytic perovskite is a solid that has an ion conductivity greater than 10−5 S/cm in a temperature range of 0–400° C., wherei...
02/07/2006
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