Sanjay Chaturvedi
Sanjay Chaturvedi, Anne Mae Gaffney, Scott Han, Michele Doreen Heffner, Ruozhi Song: Ir and/or Sm promoted multi-metal oxide catalyst. Rohm And Haas Company, May 23, 2002: US20020062038-A1

A catalyst comprising a promoted mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.

Carl D Keith, William R Larsen, Thomas Shimrock: Catalyst compositions and the method of manufacturing them. Engelhard Minerals & Chemicals Corporation, October 16, 1979: US04171288 (137 worldwide citation)

Catalysts are disclosed which have good activity and life when used to promote the conversion of hydrocarbons, carbon monoxide and nitrogen oxides contained in small concentrations in gaseous streams, to obtain the less noxious materials, carbon dioxide, water and nitrogen. The catalysts contain a c ...

Chung Zong Wan: Catalyst composition containing segregated platinum and rhodium components. Engelhard Corporation, October 15, 1991: US05057483 (122 worldwide citation)

A catalyst composition suitable for three-way conversion of internal combustion engine, e.g., automobile gasoline engine, exhaust gases includes a catalytic material disposed in two discrete coats on a carrier. The first coat includes a stabilized alumina support on which a first platinum catalytic ...

Charles E Thompson, John J Mooney, Carl D Keith, William A Mannion: Polyfunctional catalysts. Engelhard Minerals & Chemicals Corporation, June 5, 1979: US04157316 (108 worldwide citation)

This invention provides polyfunctional catalysts comprising a composite of platinum and one or more of rhodium, ruthenium and iridium, a substantially larger quantity of one or more base metal oxides in which the metal is selected from the group consisting of metals having an atomic number from 25 t ...

Chung Zong Wan, Joseph C Dettling: Aluminum-stabilized ceria catalyst compositions, and methods of making the same. Engelhard Corporation, December 22, 1987: US04714694 (102 worldwide citation)

A catalyst material comprises an aluminum-stabilized ceria which optionally may be combined with an activated alumina and may also comprise one or more platinum group metal catalytic components. A method of making the material includes impregnating bulk ceria or a bulk ceria precursor with an alumin ...

Richard W Brotzman Jr, Marc L Kullberg: Composite nanoparticle materials and method of making the same. Nanophase Technologies Corporation, Wildman Harrold Allen & Dixon, May 30, 2006: US07052777 (98 worldwide citation)

A composite nanoparticle material comprising a plurality of cores and a plurality of shells. At least one of the cores is encapsulated by one of the shells. An oxygen storage material comprising a plurality of oxygen storage catalyst cores. A plurality of oxygen transport shells. At least one of the ...

Saul G Hindin, Joseph C Dettling: Rare earth containing catalyst composition. Engelhard Minerals & Chemicals Corporation, November 23, 1976: US03993572 (83 worldwide citation)

Catalysts suitable for promoting selected oxidation and reduction reactions; especially for eliminating or substantially reducing pollutants in waste gas streams such as automobile exhaust, or nitric acid plant tail gas, are described, as are processes for their preparation and use. The catalysts co ...

Michael G Henk, Jack C Summers II: Layered automotive catalytic composite. Allied Signal, Frank S Molinaro, Harold N Wells, Roger H Criss, September 19, 1989: US04868148 (82 worldwide citation)

This invention relates to a catalytic composite for treating an exhaust gas comprising a first support which is refractory inorganic oxide having dispersed thereon at least one noble metal component and having dispersed immediately thereon an overlayer comprising at least one oxygen storage componen ...

Howard L Mitchell III, Robert H Waghorne: Catalysts for the conversion of relatively low molecular weight hydrocarbons to higher molecular weight hydrocarbons and the regeneration of the catalysts. Exxon Research & Engineering Co, Llewellyn A Proctor, December 16, 1980: US04239658 (76 worldwide citation)

Novel regenerable catalyst-reagents, and a new and improved process utilizing said regenerable catalyst-reagents, for the conversion, and oligomerization of hydrocarbons, notably methane, at relatively low temperatures to produce products rich in ethylene or benzene, or both, usually in admixture wi ...

Yoshihiro Suzuki, Hiroo Kinoshita, Naomi Akasaka: Catalyst for purifying exhaust gas and the process for manufacturing thereof. Toyota Jidosha Kogyo Kabushiki Kaisha, Oblon Fisher Spivak McClelland & Maier, June 23, 1981: US04274981 (74 worldwide citation)

A catalyst for purifying exhaust gas composed of a catalyst carrier coated with a metal oxide material containing a spinel metal oxide of the formula: MAl.sub.2 O.sub.4 wherein M is Sr, Mg, Cu, Mn, Mo, Zn, Fe, Co or Ni the metal oxide coated carrier further being coated with rhodium and platinum and ...