Patent application number | Description | Published |
20080247929 | HIGH ACTIVITY TITANIA SUPPORTED METAL OXIDE DeNOx CATALYSTS - The present invention is directed to high activity titanium oxide DeNOx catalysts. In preferred embodinents, by depositing vanadium oxide on a titania supported metal oxide such as tungsten oxide, an improved catalyst may be generated. This catalyst may be used in the treatment of exhaust from sources such as automobiles and industrial plants. | 10-09-2008 |
20080279740 | DeNOx catalyst preparation method - A catalyst comprising iron and a titanium-zirconium mixed oxide gel, and a process for preparing the catalyst are disclosed. The process comprises combining an iron compound and a titanium-zirconium mixed oxide gel in water to form an iron-titanium-zirconium mixed oxide, and then removing water to produce the catalyst. The catalyst is particularly effective for DeNO | 11-13-2008 |
20090062111 | Transparent, Stable Titanium Dioxide Sols - A method of preparing stable, transparent photocatalytic titanium dioxide sots is disclosed which involves thermal treatment of a suspension of amorphous titanium dioxide in the presence of certain alpha-hydroxy acids. The sots comprise titanium dioxide particles in the anatase form having a crystallite size less than about 10 nm and exhibit excellent stability and transparency at basic, neutral, and acid pH. | 03-05-2009 |
20090192323 | Spray-dried transition metal zeolite and its use - A catalyst comprising a spray-dried transition metal zeolite and a noble metal is disclosed. The spray-dried transition metal zeolite comprises a transition metal zeolite and a binder. At least 50 wt. % of the binder is titania. The catalyst is used in a process to produce an epoxide by reacting an olefin, hydrogen, and oxygen. The catalyst is easy to filter from a slurry and produces a reduced level of hydrogenation products. | 07-30-2009 |
20090209665 | COLLOIDAL TITANIUM DIOXIDE SOLS - Stable, translucent or transparent titanium dioxide sols comprising amorphous titanium dioxide and an organic peptizing agent are provided that are useful in particulate binding applications. Also provided are methods for preparing the inventive sols. The inventive sols are prepared from titanium dioxide precursors including organotitanium compounds and water-soluble titanium salts that are treated to precipitate amorphous titanium dioxide. The amorphous titanium dioxide is re-dispersed and peptized to form a translucent or transparent mixture. The inventive sols are stable for an extended period of time. | 08-20-2009 |
20090324472 | NANOCOMPOSITE PARTICLE AND PROCESS OF PREPARING THE SAME - A nanocomposite particle, its use as a catalyst, and a method of making it are disclosed. The nanocomposite particle comprises titanium dioxide nanoparticles, metal oxide nanoparticles, and a surface stabilizer. The metal oxide nanoparticles are formed hydrothermally in the presence of the titanium dioxide nanoparticles. The nanocomposite particle is an effective catalyst support, particularly for DeNO | 12-31-2009 |
20090325787 | NANOCOMPOSITE PARTICLE AND PROCESS OF PREPARING THE SAME - A nanocomposite particle, its use as a catalyst, and a method of making it are disclosed. The nanocomposite particle comprises titanium dioxide nanoparticles, metal oxide nanoparticles, and a surface stabilizer. The metal oxide nanoparticles are formed hydrothermally in the presence of the titanium dioxide nanoparticles. The nanocomposite particle is an effective catalyst support, particularly for DeNO | 12-31-2009 |
20100099552 | Nanocomposite particle and process of preparing the same - A nanocomposite particle, its use as a catalyst, and a method of making it are disclosed. The nanocomposite particle comprises titanium dioxide nanoparticles, metal oxide nanoparticles, and a surface stabilizer. The metal oxide nanoparticles are formed hydrothermally in the presence of the titanium dioxide nanoparticles. The nanocomposite particle is an effective catalyst support, particularly for DeNo | 04-22-2010 |
20100209323 | MOBILE DeNOx CATALYST - DeNOx catalysts for the reduction of NOx compounds and porous catalyst support materials are provided. The inventive catalysts comprise an active metal catalyst component and mixed TiO | 08-19-2010 |
20100267550 | Transparent, Stable Titanium Dioxide Sols - A method of preparing stable, transparent photocatalytic titanium dioxide sots is disclosed which involves thermal treatment of a suspension of amorphous titanium dioxide in the presence of certain alpha-hydroxy acids. The sots comprise titanium dioxide particles in the anatase form having a crystallite size less than about 10 nm and exhibit excellent stability and transparency at basic, neutral, and acid pH. | 10-21-2010 |
20110183838 | TRANSPARENT, STABLE TITANIUM DIOXIDE SOLS - A method of preparing stable, transparent photocatalytic titanium dioxide sots is disclosed which involves thermal treatment of a suspension of amorphous titanium dioxide in the presence of certain alpha-hydroxy acids. The sots comprise titanium dioxide particles in the anatase form having a crystallite size less than about 10 nm and exhibit excellent stability and transparency at basic, neutral, and acid pH. | 07-28-2011 |
20110251055 | Supported Precious Metal Catalysts Via Hydrothermal Deposition - A process for making a catalyst having precious metal nanoparticles deposited on a support includes first providing an aqueous dispersion of support particles. A pre-treatment slurry is prepared by mixing the aqueous dispersion of support particles with a water-soluble precious metal precursor and a reducing agent. The pre-treatment slurry is hydrothermally treated at a temperature in the range of from about 40° C. to about 220° C. for a time sufficient to deposit precious metal nanoparticles on the surface of the support particles, the precious metal nanoparticles having an average particle size less about 50 nm. | 10-13-2011 |
20120308460 | Nanocomposite Particle and Process of Preparing the Same - A nanocomposite particle, its use as a catalyst, and a method of making it are disclosed. The nanocomposite particle comprises titanium dioxide nanoparticles, metal oxide nanoparticles, and a surface stabilizer. The metal oxide nanoparticles are formed hydrothermally in the presence of the titanium dioxide nanoparticles. The nanocomposite particle is an effective catalyst support, particularly for DeNO | 12-06-2012 |
20130122298 | MESOPOROUS TITANIUM DIOXIDE NANOPARTICLES AND PROCESS FOR THEIR PRODUCTION | 05-16-2013 |
20140271448 | RUTILE TITANIUM DIOXIDE NANOPARTICLES AND ORDERED ACICULAR AGGREGATES OF SAME - Ordered acicular aggregates of elongated TiO | 09-18-2014 |
20140272416 | RUTILE TITANIUM DIOXIDE MICROSPHERES AND ORDERED BOTRYOIDAL SHAPES OF SAME | 09-18-2014 |