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| Number | Title | Issue Date |
| 8178074 | Method for producing titanium oxide particles Titanium oxide particles having a particle having a decahedral box-shape and a particle size in a range of from 1 nm to 100 nm can be selectively and efficiently produced by carrying out a method in which in a case of oxidizing titanium tetrachloride in vapor at hig... | 05/15/2012 |
| 8147794 | Multi-stage method for manufacturing titanium dioxide The invention relates to manufacturing titanium dioxide by oxidizing titanium tetrachloride by a multi-stage method, where liquid titanium tetrachloride is used in a first and gaseous titanium tetrachloride is used in a second stage. The process is energetically mor... | 04/03/2012 |
| 8114377 | Process for producing titanium dioxide particles having reduced chlorides This disclosure relates to process for producing titanium dioxide pigment having reduced chlorides, comprising: a) reacting titanium tetrahalide vapor, rutile-forming agent and at least a stoichiometric amount of oxygen in a reactor to form a gaseous suspension comp... | 02/14/2012 |
| 8071070 | Titanium dioxide having a variable sintering stability Provided is a crystalline TiO2 powder in the form of aggregated primary particles having a variable sintering stability at a BET surface area of 70-100 m2/g and a rutile content of greater than 10% but less than or equal to 40%, and a process f... | 12/06/2011 |
| 8062622 | Titanium dioxide having increased sintering activity A crystalline titanium dioxide powder, containing aggregated primary particles, wherein a BET surface area of the aggregated primary particles is from 30 to 65 m2/g, and a rutile content of a sum of crystalline modifications in the crystalline titanium di... | 11/22/2011 |
| 7968077 | Method for manufacturing titanium dioxide by oxidizing of titanium tetrachloride A method for manufacturing titanium dioxide by reacting titanium tetrachloride with an oxygen-bearing gas in a tubular reactor and subsequently cooling the titanium dioxide particle/gas mixture in a cooling section, where the gas/particle flow is caused to rotate. T... | 06/28/2011 |
| 7854917 | Methods of controlling the particle size of titanium dioxide produced by the chloride process A process for manufacturing titanium dioxide by the chloride process is provided. In one embodiment, a particle size control agent comprising an ionizing agent such as potassium chloride is introduced into the reaction zone of the oxidation reactor to control the pa... | 12/21/2010 |
| 7708975 | Process for making metal oxide nanoparticles There is described a process for preparing metal oxide particles which are substantially free of coarse tail from an oxidizing agent and a vaporous metal reactant in a flow reactor; comprising, (a) directing a flow of the metal reactant into a contacting region of t... | 05/04/2010 |
| 7638113 | Process for making titanium dioxide The disclosure relates to a process for making titanium dioxide, comprising: reacting titanium tetrachloride with oxygen by contacting the titanium tetrachloride with the oxygen in a vapor phase reactor under mixing conditions and at an elevated temperature to form ... | 12/29/2009 |
| 7585488 | Anatase-type titanium oxide powder and method for producing same An anatase-type titanium oxide powder having a ratio of rutile to anatase of 10% or less and a BET specific surface area of 20 to 80 m2/g. Since the titanium oxide powder has a large specific surface area and a low ratio of rutile to anatase in comparison... | 09/08/2009 |
| 7476378 | Process for producing titanium dioxide This disclosure relates to a process for producing titanium dioxide, comprising: a) providing a quantity of liquid titanium tetrahalide for reacting with an oxygen-containing gas; b) vaporizing a first portion of t... | 01/13/2009 |
| 7416600 | Silicon-titanium mixed oxide powder produced by flame hydrolysis Silicon-titanium mixed oxide powder produced by flame hydrolysis, which consists of aggregates of primary particles, with a BET surface area of 90±15 m2/g, a titanium dioxide proportion of 50±8 wt. % and an anatase/rutile ratio of 60:40 to 70:30. | 08/26/2008 |
| 7413726 | Synthesis of ultrafine rutile phase titanium dioxide particles The present invention provides a low temperature process for the synthesis of ultrafine rutile phase titanium dioxide particles through vapor phase hydrolysis of titanium tetra chloride. ... | 08/19/2008 |
| 7381398 | Titanium oxide powder, methods of manufacturing the same and barium titanate powder, dielectric ceramic, and multilayer ceramic capacitor A titanium oxide powder holding a barium compound on the surface of the particles thereof is used for manufacturing a highly crystalline fine barium titanate powder by solid-phase reaction. When the titanium oxide powder and a barium-containing powder material are m... | 06/03/2008 |
| 7354561 | Chemical reactor and method for chemically converting a first material into a second material A chemical reactor and method for converting a first material into a second material is disclosed and wherein the chemical reactor is provided with a feed stream of a first material which is to be converted into a second material; and wherein the first material is c... | 04/08/2008 |
| 7312916 | Electrophoretic media containing specularly reflective particles An electrophoretic medium (100) comprises at least one type of particle (108) suspended in a suspending fluid (106) and capable of moving therethrough on application of an electric field to the medium, the particles (108) including at lea... | 12/25/2007 |
| 7297323 | Method and apparatus for manufacturing fine particles A method of manufacturing fine particles of the invention includes introducing a reactive gas flow containing a fine particle source material into a reactor from one side, growing fine particles in a gas phase by heating the fine particle source material in the reac... | 11/20/2007 |
| 7247200 | Titanium dioxide finishing process This disclosure relates to process for producing titanium dioxide (TiO2) pigments, comprising the following steps: a) oxidizing a mixture of titanium tetrahalide and a rutile forming agent, such as aluminum halide, present in the vapor phase and in the pr... | 07/24/2007 |
| 7217407 | Plasma synthesis of metal oxide nanoparticles The present invention is a method of increasing particle surface area and decreasing the concentration of over-sized particles in a process for making metal oxide particles, particularly nanoparticle TiO2, in an inlet-fed, plug flow, plasma reactor by vap... | 05/15/2007 |
| 7214363 | Method for preparing composite microparticles Composite microparticles having thin coating layers can be simply prepared by bringing a host particle precursor into contact with a flame generated in a burner movably mounted at the bottom of a coating apparatus, by introducing the precursor in the form of a vapor... | 05/08/2007 |
| 7208126 | Titanium dioxide nanopowder manufacturing process Titanium dioxide nanopowder is produced by a process, comprising: (a) reacting titanium tetrachloride and an oxygen containing gas in the vapor phase in a flame reactor, at a flame temperature of at least about 800° C. in the pres... | 04/24/2007 |
| 7195747 | Process for mixing and reacting two or more fluids A novel process for continuously mixing and reacting at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved using cyclone mixing where at least two supply channels feed a mixing chamber to create a vortex of the f... | 03/27/2007 |
| 7182931 | Process for making titanium dioxide An improved process for producing titanium dioxide by reacting a titanium dioxide ore with chlorine to produce a gaseous stream containing titanium tetrachloride, condensing titanium tetrachloride from the gaseous stream containing titanium tetrachloride to produce ... | 02/27/2007 |
| 7169733 | Visible light-induced photocatalyst A visible light induced, highly oxidative, and highly reductive photocatalyst. The photocatalyst includes a first semiconductor with a bandgap between valence band and conduction band thereof between 2.0 eV and 3.0 eV, and second semiconductor, combined with the fir... | 01/30/2007 |
| 7140558 | Mixing arrangement for atomizing nozzle in multi-phase flow The invention relates to an improved mixing arrangement for, primarily, moving bitumen in steam from sources of such bitumen and steam to a reactor or coker for further processing of the bitumen into petroleum products. The invention provides a main conduit connecte... | 11/28/2006 |
| 7138010 | Amino phosphoryl treated titanium dioxide The invention is a pigment comprising titanium dioxide and an amino phosphoryl compound. The pigment of the invention imparts improved physical qualities, such as improved lacing resistance and dispersion, when incorporated into polymers. ... | 11/21/2006 |
| 7137276 | Process for coating glass A process for the production of durable photocatalytically active self-cleaning coating on glass by contacting a hot glass surface with a fluid mixture of titanium chloride, a source of oxygen and a tin precursor. The coating preferably comprises less than 10 atom %... | 11/21/2006 |
| 7083852 | Ultrafine mixed-crystal oxide, production process and use thereof A process for producing an ultrafine mixed-crystal oxide characterized by producing an ultrafine mixed crystal oxide comprising primary particles in a mixed crystal state with a BET specific surface area of 10 to 200 m2/g, comprising the step of subjectin... | 08/01/2006 |
| 7066980 | Method for manufacturing metal powder A method in which a metal powder is produced by ejecting a thermally decomposable metal compound powder into a reaction vessel through a nozzle together with a carrier gas under the condition V/S>600, where V is the flow rate of the carrier gas per unit time (liter/... | 06/27/2006 |
| 7033952 | Apparatus and method using a remote RF energized plasma for processing semiconductor wafers Chemical generator and method for generating a chemical species at a point of use such as the chamber of a reactor in which a workpiece such as a semiconductor wafer is to be processed. The species is generated by creating free radicals, and combining the free radic... | 04/25/2006 |
| RE39068 | Method and apparatus for producing titanium dioxide A process for reacting titanium tetrachloride vapors with oxygen to produce titanium dioxide wherein the oxygen is introduced into the reactor in at least two points. The process has the ability to control properties, such as particle size, of the raw pigment produc... | 04/18/2006 |
| 7029648 | Process for making durable rutile titanium dioxide pigment by vapor phase deposition of surface treatment The present invention relates to a process for making durable titanium dioxide pigment by vapor phase deposition of surface treatments on the titanium dioxide particle surface by reacting titanium tetrachloride vapor, an oxygen containing gas and aluminum chloride i... | 04/18/2006 |
| 7018608 | Ultrafine particulate titanium oxide and production process thereof A pigment comprises a titanium oxide having a BET specific surface area of from about 3 m2/g to about 200 m2/g, and a D90 diameter corresponding to 90% of a particle size cumulative distribution on a weight basis of about 2.2 μm or less. Also ... | 03/28/2006 |
| 7001443 | Method for producing a metallic alloy by the oxidation and chemical reduction of gaseous non-oxide precursor compounds A metallic alloy is prepared from a gaseous mixture of at least two non-oxide precursor compounds, wherein the non-oxide precursor compounds collectively comprise the metallic constituents. The mixture of the non-oxide precursor compounds is oxidized to form a solid... | 02/21/2006 |
| 6994837 | Plasma synthesis of metal oxide nanopowder and apparatus therefor A process and apparatus for the synthesis of metal oxide nanopowder from a metal compound vapour is presented. In particular a process and apparatus for the synthesis of TiO2 nanopowder from TiCl4 is disclosed. The metal compound vapour is reac... | 02/07/2006 |
| 6991677 | Titanium dioxide-calcium carbonate composite particles Titanium dioxide-calcium carbonate composite particles capable of realizing characteristic properties inherent in titanium dioxide such as a high opacity, a process for producing the same, and a complex composition or complex incorporated with the same are provided.... | 01/31/2006 |
| 6969500 | Method for separating titanium tetrachloride The invention relates to a method for separating titanium tetrachloride and the hydrolyzed reaction products of titanium tetrachloride from the exhaust gases generated during the chlorination of raw materials containing titanium by treating the exhaust gases with a ... | 11/29/2005 |
| 6936114 | Steam cleaning system and method for semiconductor process equipment Disclosed are systems and methods for removing stubborn contaminants, aluminum fluoride and aluminum chloride in particular, from components of semiconductor-processing equipment. One embodiment forces steam through small holes in a gas distribution plate to remove ... | 08/30/2005 |
| 6852306 | Process for making durable rutile titanium dioxide pigment by vapor phase deposition of surface treatments The present invention relates to a process for making durable titanium dioxide pigment by vapor phase deposition of surface treatments on the titanium dioxide particle surface by reacting titanium tetrachloride vapor, an oxygen containing gas and aluminum chloride i... | 02/08/2005 |
| 6830742 | Ultrafine particulate titanium oxide and production process thereof Particulates, particularly ultrafine particulates of titanium oxide having a BET specific surface area of from about 3 m2/g to about 200 m2/g, preferably from about 5 m2/g to about 200 m2/g, and more preferably from about ... | 12/14/2004 |
