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Class 423/630 - Utilizing carbon or compound thereof as reactant


Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Processes in which preparation of the aluminum compound
No. of patents: 136
Last issue date: 02/28/2012


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NumberTitleIssue Date
8124048Process for producing high-purity α-alumina
Provided is a process for producing a high-purity α-alumina in which an Si content, an Fe content, a Ca content, and an Na content are simultaneously removed. The high-purity α-alumina is produced by burning aluminum hydroxide having an Na content of 0.11 mass % o...
02/28/2012
7422730Nanoporous ultrafine α-alumina powders and sol-gel process of preparing same
The present invention provides α-alumina powders comprising α-alumina particles of which at least 80% of the α-alumina particles have a particle size of less than 100 nm. The invention also provides slurries, particularly aqueous slurries, which comprise α-alumi...
09/09/2008
7351394Method for producing α-alumina powder
A method for producing an α-alumina powder is described. The method for producing an α-alumina powder comprises a step of calcining an aluminum salt in the presence of a seed crystal at 600-890° C. ...
04/01/2008
7341976Stabilized boehmite-derived catalyst supports, catalysts, methods of making and using
A stabilized catalyst support having improved hydrothermal stability, catalyst made therefrom, and method for producing hydrocarbons from synthesis gas using said catalyst. The stabilized support is made by a method comprising treating a crystalline hydrous alumina ...
03/11/2008
7294184Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
Provided is an ink jet ink containing a coloring material having a buffer region in an ink use range, the ink jet ink being capable of suppressing the occurrence of the deterioration (dissolution) of a heating portion surface in contact with liquid; and the disconne...
11/13/2007
7285159Ink jet ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
Provided is an ink jet ink comprising at least a coloring material comprising a compound represented by the general formula (I) or a salt thereof; and a compound represented by the general formula (II). Thereby, there can be provided an ink jet ink that provides ima...
10/23/2007
7270701Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
An ink jet ink is provided with which metallic luster appearing in printing on a recording medium, i.e. the bronze phenomenon is kept from occurring and good images can be obtained. The ink jet ink includes at least a coloring material which is a compound represente...
09/18/2007
7255901Recording medium for ink and method for producing the same
A recording medium for ink, capable of rapidly absorbing large amounts of ink, showing excellent color forming ability and capable of suppressing image deterioration caused by dye displacement that occurs when an image is stored in humid conditions and image deterio...
08/14/2007
7247193Ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
A second ink to be used in combination with a first ink for use in an ink jet recording apparatus having a first opening to which the first ink is supplied, a second opening to which the second ink is supplied, and a cover member with which the first opening and the...
07/24/2007
7244478Recording medium having ink-receiving layer and method of manufacturing the same
A method of manufacturing a recording medium with an excellent productivity is provided. The method provides a recording medium having excellent ink absorbency and coloring property and includes an ink-receiving layer in which a binder is restricted and controlled. ...
07/17/2007
7241332Ink jet yellow ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
To provide an ink jet yellow ink to be used in combination with ink excellent in light resistance and environmental gas resistance with a color fading balance with respect to light and an environmental gas between the inks uniformized. The ink jet yellow ink is an i...
07/10/2007
7232600Recording medium, image-forming method employing the same, process for producing the same
An ink-jet recording medium having at least a light-reflecting layer and a dye-fixing layer formed in this order on a base material in a multilayer structure, wherein the light-reflecting layer contains two or more pigments different in chemical composition, and whe...
06/19/2007
7226498Ink jet yellow ink, ink jet light-color ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
To provide an ink jet yellow ink having a favorable color tone and capable of providing an image excellent in humidity resistance. The ink jet yellow ink of the present invention is an ink jet yellow ink to be used in combination with an ink jet light-color ink comp...
06/05/2007
7198664Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
An object of the present invention is to provide an ink jet black ink by which an image quality comparable to that of a silver halide photograph is obtained with a compatibility between a high fastness and a high image quality when the ink is printed on a recording ...
04/03/2007
7198837Image forming process, ink set, image by ink-jet recording, recorded article, surface-treated article and surface treating process
An image forming method comprises a step of reacting an ink containing a coloring material with a liquid composition containing fine particles reactive to the coloring material on a recording medium, where the reaction between the coloring material and the fine part...
04/03/2007
7189775Boehmite particles and polymer materials incorporating same
A modified polymer material is discloses, including a polymer base and boehmite particles provided in the polymer base. the boehmite particles are made up of mainly anisotropically shaped particles. ...
03/13/2007
7160372Ink jet ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus
There is provided ink jet ink containing at least a coloring material, in which: the coloring material is a compound represented by the following general formula (I) or a salt thereof; a content (weight %) of the coloring material is 3.0 weight % or more with respec...
01/09/2007
7144613Recording medium, process for production thereof, and ink-jet recording method employing the medium
In a recording medium having a porous ink-receiving layer containing alumina hydrate of boehmite structure formed on a base material, the alumina hydrate has crystallinity ranging from 15 to 80 and microcrystals of the alumina hydrate are directed to be parallel to ...
12/05/2006
7008671Recorded matter, method of producing recorded matter, method for improving image fastness, image fastness-improving agent, image fastness improving kit, dispenser, and applicator
In order to provide a recorded matter having image fastness to light and gas, disclosed is a recorded matter having an ink-receiving layer of a porous structure, wherein the ink-receiving layer has an image region where an image is formed with a coloring material, w...
03/07/2006
6620458Method to produce alumina aerogels having porosities greater than 80 percent
A two-step method for producing monolithic alumina aerogels having porosities of greater than 80 percent. Very strong, very low density alumina aerogel monoliths are prepared using the two-step sol-gel process. The method of preparing pure alumina aerogel...
09/16/2003
6518219Catalyst for hydrorefining fraction oils, its carrier and preparation
A catalyst for hydrofining fraction oils, comprises an alumina carrier and at least one metal and/or thereof oxide of Group VIB and at least one metal and/or thereof oxide of Group VIII supported on said alumina carrier. The pore volume of said alumina ca...
02/11/2003
6506358Process for the preparation of quasi-crystalline boehmites
The present invention pertains to an improved process for the preparation of quasi-crystalline boehmite. In this improved process a quasi-crystalline boehmite precursor is aged at a pH below 7, prefereably under hydrothermal conditions. It was found that ...
01/14/2003
6261533Process for preparing aluminum oxide masses with very narrow pore radius distribution
A process for the production of an aluminum oxide composition which includes subjecting an aluminoxane with a basic structural element of --Al--O--Al-- or a basic oligomeric structural element of --Al--O--Al--O--Al--O--Al-- to mild hydrolysis with at leas...
07/17/2001
6214312Process for synthesising aluminas in a basic medium
The invention concerns a process for synthesising aluminas with a controlled porosity in which the pore diameter is in the range 0.6 nm to 80 nm. This process is carried out in a plurality of steps including at least one step a) in which an alumina precur...
04/10/2001
6207611Catalyst for hydrodemetalization of heavy oil
A catalyst for hydrodemetalization of heavy oil, especially residuum oil, and a process for preparing the same, wherein said catalyst comprises the metal elements of Groups VIII and/or VIB as active components supported on an alumina carrier having large ...
03/27/2001
6197276Hydrated aluminum compounds, their preparation and use thereof
Hydrated aluminium compounds of the present invention are represented by the general formula nS, mM, Al2 O3, xH2 O where S is a surfactant or a group of surfactants, n is the number of moles of S, M is an alkaline cation, ...
03/06/2001
6063358High surface area alumina and other aluminum products method of preparing by Schiff base mediated hydrolysis products made thereof
A process for producing alumina and other aluminia products where the formation of a Schiff base imine by reaction of a orgaonaluminum amide or imide oligomer with a carbonyl compound is promoted by the Lewis acid character of the oligomer. The water bypr...
05/16/2000
6039930Process for producing metal compounds from graphite oxide
A process for providing elemental metals or metal oxides distributed on a carbon substrate or self-supported utilizing graphite oxide as a precursor. The graphite oxide is exposed to one or more metal chlorides to form an intermediary product comprising c...
03/21/2000
6027706Porous aluminum oxide materials prepared by non-ionic surfactant assembly route
Semi-crystalline alumina compositions with framework mesopores are disclosed. The compositions are assembled from inorganic aluminum precursors and nonionic polyethylene oxide surfactants. The new assembly pathway introduces several new concepts to alumin...
02/22/2000
5958363Method for making monolithic metal oxide aerogels
Transparent, monolithic metal oxide aerogels of varying densities are produced using a method in which a metal alkoxide solution and a catalyst solution are prepared separately and reacted. The resulting hydrolyzed-condensed colloidal solution is gelled, ...
09/28/1999
5911967Process and apparatus for production of ferric oxide from iron chloride solutions
A process and an apparatus for the production of iron oxides having low chloride ion content comprising charging of a free HCl containing iron chloride solution into a spray roaster with a feeding device and a spray boom for charging the iron chloride con...
06/15/1999
5885924Halogenated supports and supported activators
The present invention relates to catalyst supports and improvements thereof for use with supported activators and supported transition metal catalyst systems. The invention specifically involves reacting a carrier containing reactive functionalities, e.g....
03/23/1999
5876687Elemental metals or oxides distributed on a carbon substrate or self-supported and the manufacturing process using graphite oxide as template
A process for providing elemental metals or metal oxides distributed on a carbon substrate or self-supported utilizing graphite oxide as a precursor. The graphite oxide is exposed to one or more metal chlorides to form an intermediary product comprising c...
03/02/1999
5863515Mesoporous alumina and process for its preparation
Mesoporous, alumina compositions having an average pore diameter substantially ranging from about 15 Å to about 40 Å and an average surface area of no less than about 500 meter square/gram are disclosed. These materials can be formed by treating an alum...
01/26/1999
5811362Process for preparing a Ziegler-type spherical catalyst for alpha-olefin polymerization process
A proces for preparing a spherical support for the polymerization of alpha-olefins from an ammonium dawsonite which is spray-dryed and formed into spherical particles which are then calcined and impregnated with titanium to produce a spherical catalyst of...
09/22/1998
5780102Process for producing alumina with high specific surface area
A process includes a step of melting aluminium alkoxide in hexylene glycol (2-methyl 2,4-pentonediol). Then, the solution is subject hydrolysis. During this, hydrolysis and dehydrating condensation of hexylene glycol is controlled by alkoxide. This is fou...
07/14/1998
5395805Method for making monolithic metal oxide aerogels
Transparent, monolithic metal oxide aerogels of varying densities are produced using a method in which a metal alkoxide solution and a catalyst solution are prepared separately and reacted. The resulting hydrolyzed-condensed colloidal solution is gelled, ...
03/07/1995
5286687Method for production of needlelike crystalline particles
Needlelike single crystal particles of ଱- alumina, θ-alumina, mullite, sillimanite, etc. are produced by adding a silicon-containing substance to needlelike alumina precursor particles and heating the resultant product of addition....
02/15/1994
5106599Alumina crystal growth additive
A method of modifying crystal structure of alumina trihydrate crystallizing from saturated Bayer liquors, which method includes the treatment of the saturated Bayer liquors with a crystal modifying amount of a polysaccharide, preferably a dextran....
04/21/1992
5098679Purification of alkali metal hydrosulfite solutions
A process for treating an alkali metal hydrosulfite solution which comprises contacting the alkali metal hydrosulfite solution with aluminum in a reaction mixture, and admixing carbon dioxide gas with the reaction mixture to remove dissolved aluminum as a...
03/24/1992
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