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| Number | Title | Issue Date |
| 6313077 | Use of polyalphaolefins (PAO) derived from dodecene or tetradecene to improve thermal stability in engine oil in an internal combustion engine The present invention relates to compositions of base oils and automotive engine oils using synthetic poly alpha olefins derived from 1-dodecene or 1-tetradecene to improve engine oil performance as demonstrated by the severe Volkswagen T-4, Volkswagen TD... | 11/06/2001 |
| 6235954 | Hydrocarbon hydrogenation catalyst and process A catalyst composition and process for preparing such catalyst composition which can be useful in contacting a hydrocarbon-containing fluid which contains a highly unsaturated hydrocarbon such as 1,3-butadiene, in the presence of hydrogen, with such catal... | 05/22/2001 |
| 6150300 | Process to produce sorbents A process to produce a sorbent is provided. This process comprises: mixing a composition that comprises silica, a composition that comprises metal oxide, and a composition that comprises zinc oxide, to form a first mixture; and sphering said first mixture... | 11/21/2000 |
| 6140547 | Isomerization of hydrocarbons An isomerization process for converting an isomerization feed stream containing alkanes having about 4 carbon atoms to about 10 carbon atoms per molecule and cycloalkanes having about 5 carbon atoms to about 10 carbon atoms per molecule to at least one pr... | 10/31/2000 |
| 6133494 | Catalyst composition comprising acid-base leached zeolites A catalyst composition and a process for hydrodealkylating C9 + aromatic compounds such as, for example, trimethylbenzenes, to C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The composition compr... | 10/17/2000 |
| 6124516 | Catalyst composition and processes therefor and therewith A process for isomerizing hydrocarbons is disclosed. The process includes contacting, under reaction conditions, a hydrocarbon-containing fluid containing a saturated hydrocarbon, preferably a normal paraffin containing in the range of from about 4 carbon... | 09/26/2000 |
| 6107534 | Method of making an improved catalyst containing an acid-treated zeolite, a boron component, and a zinc component, a product from such method, and the use thereof in the conversion of hydrocarbons An improved zeolite catalyst containing an acid-treated zeolite, a boron component and a zinc component manufactured by a novel method having certain process steps necessary for providing the improved zeolite catalyst. The process steps include a first st... | 08/22/2000 |
| 6084142 | Method of making an improved zeolite catalyst, a product from such method, and the use thereof in the conversion of hydrocarbons An improved zeolite catalyst containing a zeolite and a zinc component manufactured by a novel method having certain process steps necessary for providing the improved zeolite catalyst. The process steps include incorporation of a zinc component with such... | 07/04/2000 |
| 6077984 | Process for making zeolite containing zinc borate composition, the composition and the use thereof in hydrocarbon conversion A novel zeolite catalyst composition comprising a mixture of a zeolite, a binder, and a zinc borate compound wherein such mixture is calcined or treated with steam. Preferably, the zeolite has not been treated with an acid. Also provided is a process of m... | 06/20/2000 |
| 6037294 | Zeolite material, a process of making such zeolite material, a product from such process, and the use thereof in the conversion of hydrocarbons A process for making an improved zeolite catalyst composition comprising acid-treating a zeolite to provide an acid-treated zeolite, ion-exchanging the ions of such acid-treated zeolite with ions of zinc and at least one other metal in the presence of an ... | 03/14/2000 |
| 5981417 | Method of making an improved catalyst containing an acid-treated zeolite, a boron component, and a zinc component, a product from such method, and the use thereof in the conversion of hydrocarbons An improved zeolite catalyst containing an acid-treated zeolite, a boron component and a zinc component manufactured by a novel method having certain process steps necessary for providing the improved zeolite catalyst. The process steps include a first st... | 11/09/1999 |
| 5952259 | Process for making an acid-base leached zeolite catalyst A catalyst composition and a process for converting a hydrocarbon stream such as, for example, gasoline to olefins and C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition comprises an al... | 09/14/1999 |
| 5948243 | Catalyst comprising aluminum borate and zirconium borate and use thereof in a hydrotreating process A composition comprises a hydrodesulfurization or hydrodenitrogenation, or both, catalyst component and a support component which comprises aluminum, zirconium, and a borate. A process for making the composition comprises the steps of (1) contacting an al... | 09/07/1999 |
| 5945364 | Catalyst composition comprising acid-base leached zeolites A catalyst composition and a process for hydrodealkylating C9 + aromatic compounds such as, for example, trimethylbenzenes, to C6 to C8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The composition compr... | 08/31/1999 |
| 5922630 | Hydrotreating catalyst composition and processes therefor and therewith A catalyst composition and a process for converting a hydrocarbon stream such as, for example, a C9 + aromatic compound to C6 to C8 aromatic hydrocarbons such as xylenes are disclosed. The catalyst composition comprises an... | 07/13/1999 |
