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Class 423/594.16 - Alkaline earth metal containing (Mg, Ca, Sr, or Ba)


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Subject matter for products or processes wherein at least
No. of patents: 144
Last issue date: 08/09/2011


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NumberTitleIssue Date
7993623Additives for removal of metals poisonous to catalysts during fluidized catalytic cracking of hydrocarbons
Compositions and methods suitable for removing poisonous metals from hydrocarbons are provided. The compositions comprise hydrotalcite having one or more trapping metals dispersed on the outer surface thereof. ...
08/09/2011
7837972Production method of barium titanate
A production method of barium titanate according to the present invention comprises steps of preparing powder mixture of barium carbonate powder and titanium oxide powder and firing the powder mixture. The temperature of the powder mixture is raised to firing temper...
11/23/2010
7432015Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same
The negative active material for a rechargeable lithium battery of the present invention includes a carbonaceous material and a silicon-based compound represented by Formula 1: Si(1-y)MyO1+x   (1) where 0
10/07/2008
7419736Mixed ion conductor
A mixed ionic conductor of the present invention includes a perovskite oxide of Ba, Ce, and In. The perovskite oxide is a crystalline compound expressed by Ba(Ce1-xInx)pO3, where x is 0.4 to 0.6 and p is 1 to 1.02. An elec...
09/02/2008
7381394Method for producing perovskite-type composite oxide
Methods of producing a safe and hygienic method for industrially and efficiently producing a perovskite-type composite oxide are provided that can maintain the catalytic activity of a noble metal at a high level. Methods include preparing a precursor of the perovski...
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
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
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
7297322Process and apparatus for producing powders of metal compound containing oxygen, and the powders produced by the process
A process for producing powders of metal compound containing oxygen including the steps of: feeding at least one material selected from a liquid material and a solution material obtained by dissolving solid ingredient in organic solvent via a liquid flow controller ...
11/20/2007
7291321Preparation of catalyst and use for high yield conversion of methane to ethylene
A perovskite catalyst is prepared using a ceramic sol-sol methodology comprising preparing slurry in water of an alkaline earth metal salt, a powdered metal salt and a powdered transition metal oxide, adding a polymeric binder to form a paste, drying and comminuting...
11/06/2007
7288241Black composite oxide particle and method for production thereof
A black composite oxide particle includes a composite oxide having Fe, Mg and Al as metal components. The particle contains Fe, Mg and Al in amounts of 30 to 55 mass %, 1 to 10 mass %, and 1 to 10 mass %, respectively, and has an atomic ratio of Fe3+/Fe
10/30/2007
7285259Sintering resistant catalyst material and a method for the preparation thereof
Preparation of sintering resistant hexaaluminates, AAl11O18, wherein A is an alka-line earth or rare earth metal, and more particularly lanthanum, by a combination of sol-gel and microemulsion techniques using a water soluble salt of A, and a method of forming spher...
10/23/2007
7271114Perovskite ceramic powder and electronic component using same and manufacturing methods thereof
A ceramic powder having a perovskite structure is manufactured by synthesizing a ceramic powder by a dry synthesis process and then heat-treating the synthesized ceramic powder in a solution. The dry synthesis method includes a solid phase synthesis method, an oxala...
09/18/2007
7252794Electroconductive oxide sintered compact, sputtering target comprising the sintered compact and methods for producing them
A SrRuO3 conductive oxide sintered body characterized in that the relative density is 93% or more. By improving the additive amount and sintering conditions of Bi2O3, the present invention seeks to improve the relative density of a S...
08/07/2007
7232527Sintered body for thermistor devices, thermistor device and temperature sensor
A sintered body for thermistor device comprising: at least one element selected from elements of group 3 in a periodic table proviso that La is excluded; at least one element selected from elements of group 2 in a periodic table; Mn; Al; and oxygen, and being substa...
06/19/2007
7232556Titanium comprising nanoparticles and related nanotechnology
Nanoparticles comprising titanium, such as nanoscale doped titanium metal compounds, inorganic titanium compounds, and organic titanium compounds, their methods of manufacture, and methods of preparation of products from nanoparticles comprising titanium are provide...
06/19/2007
7232557Method for preparation of magnetic spinel ferrites from layered double hydroxide precursors
The invention describes a method of preparing magnetic ferrites from layered precursors in which Fe2+ is first introduced into the layers of layered double hydroxides (LDHs) in order to prepare Me-Fe2+—Fe3+ LDHs, and then by utiliz...
06/19/2007
7223378Preparation of barium titanate or strontium titanate having a mean diameter of less than 10 nanometers
Process for preparing barium titanate or strontium titanate by reacting titanium alkoxides with barium hydroxide hydrate or strontium hydroxide hydrate in a C1–C8-alcohol or a glycol ether at from 50 to 150° C. ...
05/29/2007
7217406Lithium-manganese composite oxide granular secondary particle, method for production thereof and use thereof
Granular secondary particles of a lithium-manganese composite oxide suitable for use in non-aqueous electrolyte secondary batteries showing high-output characteristics which are granular secondary particles made up of aggregated crystalline primary particles of a li...
05/15/2007
7211236Flame made metal oxides
Described is a method for the production of metal oxides by flame spray pyrolysis, in particular mixed metal oxides such as ceria/zirconia, and metal oxides obtainable by said method. Due to high enthalpy solvents with a high carboxylic acid content said metal oxide...
05/01/2007
7211230Process for producing nanometer grade powders
The present invention discloses a process for producing nanometer powders, comprising the following steps: (a) providing reactant solution A and reactant solution B that can rapidly react to form precipitate; (b) continuously adding said solution A and solution B in...
05/01/2007
7208135Preparation of mixed oxides having mean diameters of less than 10 nanometers
Process for preparing mixed oxides by reacting alkoxides of the elements titanium, zirconium, niobium, tantalum or mixtures thereof with metal hydroxides, metal carboxylates, metal hydroxycarbonates, metal carbonates or mixtures thereof of the elements lithium, sodi...
04/24/2007
7195749Chemical-pressure tailoring of low-field, room temperature magnetoresistance in (Ca, Sr, Ba) FeMoO
The room temperature, low field intergrain magnetoresistance (IMR) of the double perovsktite SrFe0.5MO0.5O3 is found to be highly tunable by doping either Ca or Ba into the Sr site. The dopant exerts a chemical pressure, changing the...
03/27/2007
7182929Nanostructured multi-component and doped oxide powders and method of making same
A method for producing nanostructured multi-component or doped oxide particles and the particles produced therein. The process includes the steps of (i) dissolving salts of cations, which are either dopants or components of the final oxide, in an organic solvent; (i...
02/27/2007
7182930Methods of fabricating barium titanate powders
A method of fabricating barium titanate powders uses titanium tetrachloride and barium hydroxide as reactants in a reaction solution. The pH value of the reaction solution is adjusted to strongly alkaline range by adding potassium hydroxide. Nitrogen is charged into...
02/27/2007
7179441Method for preparing barium-titanate based powder
The present invention relates to a method for preparing barium titanate based powder. More particularly, the present invention provides a method for preparing barium titanate powder comprising the following steps of precipitation of barium titanyl oxalate (BaTiO(C
02/20/2007
7172790Method of producing powder with composite grains and the device for carrying out said method
A method of producing powder formed of composite grains comprising a kernel and one or more surface layers. The inventive method comprises the following steps: mixing the grain kernels with a plasmochemical treatment gas; making said kernel/treatment gas mixture flo...
02/06/2007
7166267Solid solutions, applicable as catalysts, with perovskite structure comprising noble metals
Materials with a perovskite structure in form of solid solutions with general formula: AzZr1−xBxO3 Where A is Ba or a rare earth element, B is Pt, Ir, Rh or Ce z is 1 when A is Ba and is ⅔ when A is a rare earth, x is ...
01/23/2007
7163667Production process for oxide magnetic material and oxide magnetic material
A production process for an oxide magnetic material comprising the steps of blending raw material powder so as to take the composition of a hexagonal ferrite including: at least one kind of an element A selected from the group consisting of Ba, Sr and Ca; Co and Cu;...
01/16/2007
7147834Hydrothermal synthesis of perovskite nanotubes
A low-temperature hydrothermal reaction is provided to generate crystalline perovskite nanotubes such as barium titanate (BaTiO3) and strontium titanate (SrTiO3) that have an outer diameter from about 1 nm to about 500 nm and a length from abou...
12/12/2006
7147835Oxide powder for dielectrics, method of manufacturing oxide powder for dielectrics, and multi-layer ceramic capacitor using the same
Disclosed herein is a small particle oxide powder for dielectrics. The oxide powder has a perovskite structure, an average particle diameter [D50(μm)] of 0.3 μm or less, a particle size distribution of the average particle diameter within 3%, a particle size distr...
12/12/2006
7138102Method for manufacturing highly-crystallized double oxide powder
A method for manufacturing a highly-crystallized double oxide powder composed of a single crystal phase which can be used as a phosphor material, a dielectric material, a magnetic material, etc. The method involves forming fine droplets of a raw material solution co...
11/21/2006
7118728Method and apparatus for making ferrite material products and products produced thereby
A method for making ferrite powder may include providing ferrite feed materials in a form of particles having different sizes and irregular shapes, and exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles ...
10/10/2006
7105138Macroporous perovskite manganese oxides with highly ordered nano-pores and method of preparing the same
The present invention relates to the macroporous manganese oxide material having ferromagnetic property and a method of preparing the same, more particularly to the macroporous ferromagnetic manganese oxide having three-dimensionally ordered nanopores, which is prep...
09/12/2006
7094383Method for preparing pure, thermally stable and high surface area ceria
A method for the preparing pure, thermally stable and high surface area ceria is described, wherein the ceria maintains a surface area of 12 m2/g after calcination at 980° C. in air for 4 hours. In the method, an aqueous solution containing Ce3+
08/22/2006
7094301Method of forming a joint
A method of joining at least two sintered bodies to form a composite structure, including providing a first multicomponent metallic oxide having a perovskitic or fluorite crystal structure; providing a second sintered body including a second multicomponent metallic ...
08/22/2006
7067446Material demonstrating negative or low thermal expansion coefficient and method for manufacture thereof
A material having a negative or low thermal expansion coefficient and composed substantially of a single crystal system is provided. The material is an oxide represented by the chemical formula ((R4+M2+)1-xA3+2...
06/27/2006
7060206Synthesis of metal compounds under carbothermal conditions
Active materials of the invention contain at least one alkali metal and at least one other metal capable of being oxidized to a higher oxidation state. Preferred other metals are accordingly selected from the group consisting of transition metals (defined as Groups ...
06/13/2006
7049031Protective coating on positive lithium-metal-oxide electrodes for lithium batteries
A positive electrode for a non-aqueous lithium cell comprising a LiMn2−xMxO4 spinel structure in which M is one or more metal cations with an atomic number less than 52, such that the average oxidation state of the manganese ions i...
05/23/2006
7049257Low thermal expansion materials
It is a principal object of the present invention to provide low thermal expansion materials able to answer to the needs of various uses. The present invention relates to low thermal expansion materials constituted substantially from a crystalline body represented b...
05/23/2006
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