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Class 423/636 - Process of manufacturing


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Processes for making the compound.
No. of patents: 148
Last issue date: 07/28/2009


1        
NumberTitleIssue Date
7566439Perovskite 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...
07/28/2009
7371357Process for removal of pollutants
A process for the removal of pollutants from a combustion process and, more particularly, a process for removing pollutants such as carbon dioxide, mercury, sulphur dioxide, nitrogen compounds and oxygen compounds from a combustion process. The process includes the ...
05/13/2008
7371356Method for the production of precipitated calcium carbonate with a high degree of brightness
Calcium carbonate with high brightness is prepared by treating calcium carbonate and/or the milk of lime used for its preparation by reacting milk of lime with carbon dioxide and/or at least one of the calcium-containing preliminary products used for the preparation...
05/13/2008
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
7338649Method of producing food grade hydrated lime
A method is shown for producing food grade hydrated lime. A source of raw, hydrated lime is first passed through a classification step which divides the raw hydrated lime into a first fine stream and a first coarse stream. The first fine stream is passed through a f...
03/04/2008
7329396Process for the recovery of value metals from material containing base metal oxides
A process for leaching a value metal from oxidic materials, such as a lateritic nickel ore, comprising the step of leaching the ore with a lixiviant comprising a cationic salt (e.g., magnesium chloride) and hydrochloric acid is disclosed. An oxidant or additional me...
02/12/2008
7318897Method of removing spectator ions from aqueous suspension of solid particles
The present invention provides a method of removing spectator ions and contaminants from aqueous suspensions of solid particles. In accordance with the method of the invention, the solid particles are transported across a phase boundary into a non-polar organic solv...
01/15/2008
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
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
7202197Organic lime slurry and method of preparation
A method is shown for producing stable, non-settling calcium hydroxide slurries with defined solids, viscosity, reactivity, and particle size. A traditional hydrated lime is first blended with an organic solvent. The hydrated lime and organic solvent blend is then w...
04/10/2007
7179438Methods and apparatus for recovering gypsum and magnesium hydroxide
The present invention provides methods and apparatus for treating flue gas containing sulfur dioxide using a scrubber, and more particularly relates to recovering gypsum and magnesium hydroxide products from the scrubber blowdown. The gypsum and magnesium hydroxide ...
02/20/2007
7147868Antacid and laxative tablets
An antacid and laxative tablet comprising magnesium oxide particles as an effective component, wherein (i) the magnesium oxide particles contained in the tablet have an average secondary particle diameter measured by a laser diffraction scattering metho...
12/12/2006
7143806Fine particle generating apparatus casting apparatus and casting method
A fine metal particle producing mechanism has a metal holder for housing a body of magnesium, a tube for supplying an argon gas to the body of magnesium, an argon gas flow rate controller for controlling a rate at which the argon gas is supplied to the tube, and an ...
12/05/2006
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
7018464Body pigment and process for preparing the same
A body pigment with a good skin feel for cosmetics is provided which has an appropriate crumbling property and combines slipping property and adhesiveness without compromising oil absorption. The body pigment is comprised of a metal-containing compound and has a str...
03/28/2006
6984369Process for making surfactant capped metal oxide nanocrystals, and products produced by the process
Disclosed is a process for making surfactant capped nanocrystals of metal oxides which are dispersable in organic solvents. The process comprises decomposing a metal cupferron complex of the formula MXCupX, wherein M is a metal, and Cup is a N-...
01/10/2006
6971276Recovery of purified volatile metal such as lithium from mixed metal vapors
The present invention is concerned with a method for extracting selectively a metal from a metal mixture in the gaseous phase. The method comprises heating the metal mixture to vaporize the metal; condensing the metal contaminants present in the vapor; reacting any ...
12/06/2005
6926879Method of producing food grade hydrated lime
A method is shown for producing food grade hydrated lime. A source of raw, hydrated lime is first passed through a classification step which divides the raw hydrated lime into a first fine stream and a first coarse stream. The first coarse stream is then passed to a...
08/09/2005
6863819Water treatment method
The invention provides a method treating acid raw water including the step of neutralising the water by adding calcium carbonate to it in a neutralising stage. The neutralised water is then rendered alkaline or more alkaline by adding an alkali thereto selected from...
03/08/2005
6855187Method for recycling waste wire harness
In a waste wire harness including electric wires each coated with a resin comprised of an olefin-based resin and magnesium hydroxide as a fire retardant, and including accompanied members having at least one of terminals, connectors, various kind of boxes such as ju...
02/15/2005
6761866Single step process for the synthesis of nanoparticles of ceramic oxide powders
The present invention relates to a single step process for the synthesis of nanoparticles of phase pure ceramic oxides of a single or a multi-component system comprising one or more metal ions. The process comprises preparing a solution containing all the required m...
07/13/2004
6676920Magnesium hydroxide particles, process for producing the same, and resin composition containing the particles
Provided are magnesium hydroxide particles having a hexagonal crystal form and having an aspect ratio (H) which satisfies the following expression (I), (wherein H is an aspect ratio, A is an average secondary particle diameter (μm) of all of the particle...
01/13/2004
6592834Calcium hydroxide, a process for the production thereof and use thereof
Calcium hydroxide in which the average secondary particle diameter at a cumulative percentage of 50% by number in a particle size distribution is 2.0 μm or less and the BET specific surface area is 7 to 20 m2 /g and which is surface-treated wi...
07/15/2003
6589902Attrition resistant, shaped, crystalline anionic clay-containing bodies
The present invention is directed to a process for the preparation of crystalline anionic clay-containing bodies from sources comprising an aluminum source and a magnesium source comprising the steps of: a) preparing a precursor mixture, b) shaping the precurs...
07/08/2003
6569399Process for the preparation of high-purity magnesium hydroxide and magnesium oxide from magnesium alkoxides
There is provided a process for producing high-purity magnesium hydroxide by reaction of magnesium or reactive magnesium compounds with hydroxy compounds yielding magnesium alkoxides, followed by hydrolysis to form magnesium hydroxide, or a process for pr...
05/27/2003
6517802Methods of synthesis for nanostructured oxides and hydroxides
A chemical synthetic route for nanostructured materials that is scalable to large volume production, comprising spray atomization of a reactant solution into a precursor solution to form a nanostructured oxide or hydroxide precipitate. The precipitate is ...
02/11/2003
6428760Method for desulfurizing exhaust gas
The present invention relates to the improvement of a replenishment method of a magnesium-based compound and to the improvement of a double decomposition method, which can be used in a magnesium hydroxide desulfurization method. In the improved replenishm...
08/06/2002
6391273Process and apparatus for producing oxidic nanocrystals
The present invention relates to oxidic nanocrystals and a process and apparatus for producing oxidic nanocrystals from metalorganic compounds or volatile inorganic compounds. In particular, the process is suitable for oxidic or oxysulfidic nanocrystals, ...
05/21/2002
6365555Method of preparing metal containing compounds using hydrodynamic cavitation
A process for the preparation of nanostructured materials in high phase purities using cavitation is disclosed. The method comprises mixing a metal containing solution with a precipitating agent and passing the mixture into a cavitation chamber. The chamb...
04/02/2002
6294148Process for high recovery of acetylene and lime from the reaction of calcium carbide with water
A process for controlling the continuous production of acetylene and hydrated lime from the reaction of water with calcium carbide is disclosed where the hydrated lime is withdrawn at a desired mass ratio of the hydrated lime to the calcium carbide feed. ...
09/25/2001
6277353Hydration of alkaline earth metal oxide to produce alkaline earth metal hydroxide
A process for preparing an alkaline earth metal hydroxide which comprises reacting particulate alkaline earth metal oxide having a particle size in the range from about 100 μm to about 10,000 μm with a sufficient quantity of water for a sufficient time ...
08/21/2001
6146607Process for producing highly reactive lime in a furnace
A limestone furnace calcination process involves injecting finely divided limestone particles into a zone in a furnace at which the temperature of the flue gas stream, as it passes through the zone, is above the minimum calcination temperature and below t...
11/14/2000
6042806High surface area triple layered perovskites
Applicant has synthesized a family of novel non-pillared metal oxide compositions which have a triple layered perovskite structure and a surface area of at least 30 m2 /g. These compositions are described by the empirical formula AB2...
03/28/2000
6040070Perovskite type ABO3 with surface layer
On the (100) surface of a perovskite of the type ABO3, a Ruddlerden-Popper AO*(ABO3)n layer is generated by exposing the perovskite to an oxidizing atmosphere at temperatures above 750° C....
03/21/2000
6036881Stabilized liquid lime dispersion for sewage treatment
A stabilized lime slurry for treatment of biological solids in sewage. The composition preferably includes 30-36% calcium hydroxide, 10-16% potassium hydroxide, 2-4% potassium chloride, 2-4% magnesium hydroxide, all on a dry basis, and the balance in wate...
03/14/2000
6025424Heat deterioration resistant flame retardant, resin composition and molded articles
A flame retardant having heat deterioration resistance which is composed of magnesium hydroxide particles having (i) an average secondary particle diameter, measured by a laser diffraction scattering method, of not more than 2 μm, (ii) a specific surface...
02/15/2000
5989517Process for producing stabilized magnesium hydroxide slurries
Magnesium hydroxide slurries and a method of producing same that can be shipped, without agitation, over a period of at least 28 days and can be readily removed from transport vehicles to customer storage. With respect to customer usage, such slurries can...
11/23/1999
5965102Method of manufacturing fused-magnesia
Undersize particles are recovered from a conventional manufacturing process commonly employed to prepare fused magnesia crystals. The recovery hydrolizes a bulk mass of the collected undersize particles causing fracture to eventually occur in the bulk mas...
10/12/1999
5906804Magnesium hydroxide slurries
Magnesium hydroxide slurries having the following characteristics: (i) having a solids content of between 40-80 wt. % based on the weight of the slurry with the balance being water; (ii) containing between 0.01-5.0 wt.% of at least one viscosity modifying...
05/25/1999
5872169Magnesium process
The present invention relates to a flame retardant quality magnesium hydroxide having a BET surface area of less than approximately 10 m2 per gram (uncoated), an average particle size of approximately 0.5 to 10.0 micron, and less than approxima...
02/16/1999
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