Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7408089 | Ni catalyst, process for making catalysts and selective hydrogenation process More selective and efficient Ni hydrotreating catalysts are those which contain more than about 60% of the Ni content on the peripheral surface of porous supports, such as extruded alumina, which may be obtained by spraying an atomized solution of a Ni compound onto... | 08/05/2008 |
| 7390933 | Reduction of the Bromine Index of linear alkylbenzenes In a process for reducing the Bromine Index of a feed containing a linear alkylbenzene and bromine-reactive olefinic hydrocarbon contaminants, the feed is contacted under conditions effective to remove bromine-reactive olefinic hydrocarbon contaminants with a cataly... | 06/24/2008 |
| 7385097 | Process for the purification of a diolefin hydrocarbon stream A process for the purification of a diolefin hydrocarbon stream containing acetylene and sulfur compounds. ... | 06/10/2008 |
| 7301062 | Process for the selective hydrogenation of alkynes and/or dienes in an olefin-containing hydrocarbon stream A process for the selective hydrogenation of one or more alkyne and/or one or more diene in an olefin-containing hydrocarbon feed includes contacting the hydrocarbon feed with a catalyst under selective hydrogenation conditions, the catalyst including from about 0.0... | 11/27/2007 |
| 7297824 | Ni hydrogenation catalysts, manufacture and use Improved Ni catalysts for hydrogenation reactions are disclosed. The catalysts are useful for hydrogenation such as selective hydrogenation of acetylenic impurities in crude olefin and diolefin streams. The catalysts are prepared by depositing nickel on a porous sup... | 11/20/2007 |
| 7241841 | Hydrogenated copolymers of unsubstituted and substituted conjugated dienes The random, hydrogenated copolymers according to the present invention of unsubstituted conjugated dienes and substituted conjugated dienes, having a glass transition temperature of ≦−60° C., an enthalpy of fusion of ≦100 J/g and a content of residual double ... | 07/10/2007 |
| 7208646 | Selective hydrogenation of butadiene A process for the selective hydrogenation of dienes in mixed streams of olefin containing hydrocarbons, such as butadiene in a mixed C4 stream with minimum loss of monoolefins is disclosed wherein the reactor is operated at conditions which induce pulse f... | 04/24/2007 |
| 7199273 | Selective hydrogenation of alkynes and/or diolefins A process for selectively removing alkynes and/or diolefins from a feedstock also containing olefins comprises contacting the feedstock with hydrogen in the presence of a catalyst composition. The catalyst composition comprises at least one metal component selected ... | 04/03/2007 |
| 7199076 | Methods of making and using a selective hydrogenation catalyst In an embodiment, a method of hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon includes contacting the highly unsaturated hydrocarbon with a catalyst in the presence of hydrogen. The catalyst comprises palladium and an inorganic support h... | 04/03/2007 |
| 7176262 | Hydrogenated vinyl-polybutadienes The hydrogenated vinyl-polybutadienes according to the present invention have degrees of hydrogenation of from 20 to 100%, Mooney viscosities in the range of from 10 to 150 Mooney units (ML 1+4/100° C.), glass transition temperatures (Tg) of ≦−57° C... | 02/13/2007 |
| 7141709 | Methods and systems of producing monoolefins by the extraction-hydrogenation of highly unsaturated hydrocarbons In some embodiments, methods of producing monoolefins include contacting an olefin stream with a polar solvent to extract a highly unsaturated hydrocarbon from the olefin stream, followed by contacting the polar solvent with a hydrogenation catalyst in the presence ... | 11/28/2006 |
| 7119240 | Method for converting natural gas to olefins A process for converting natural gas to an olefin includes heating the gas to a selected range of temperature to convert a fraction of the gas stream to reactive hydrocarbons, primarily ethylene or acetylene, and reacting with hydrogen in the presence of a catalyst ... | 10/10/2006 |
| 7087155 | Production of olefins A process for cracking an olefin-rich hydrocarbon feedstock which is selective towards light olefins in the effluent, the process comprising contacting a hydrocarbon feedstock containing olefins having a first composition of at least one olefinic component with a cr... | 08/08/2006 |
| 7041860 | Process for the selective hydrogenation of alkynes An improved selective hydrogenation process for removing acetylenic impurities such as vinyl acetylene, ethyl acetylene, propyl acetylene and acetylene in a steam cracked crude butadiene stream by selective hydrogenation is carried out in two steps. In the first ste... | 05/09/2006 |
| 7038096 | Hydrocarbon hydrogenation catalyst composition, a process of treating such catalyst composition, and a process of using such catalyst composition A process of treating a catalyst composition containing palladium, an inorganic support, and a catalyst component, such as silver and/or a modifier such as alkali metal fluoride, is provided. The process involves contacting a catalyst composition with a first treati... | 05/02/2006 |
| 7009085 | Selective hydrogenation catalyst and processes therefor and therewith A catalyst composition comprising an inorganic support material, a palladium component, a silver component, and a promoter component having the formula XYFn, wherein X is an alkaline metal, Y is an element selected from the group consisting of antimony, p... | 03/07/2006 |
| 6949686 | Pyrolysis gasoline stabilization A method for stabilizing pyrolysis gasoline by hydrogenating same over a Group VIII metal catalyst wherein the catalyst is promoted against poisoning by at least one metal from Groups I B, VI B, VII B, and zinc. Poisons preferentially bind with the promoters and not... | 09/27/2005 |
| 6858766 | Process for selectively hydrogenating mixed phase front end C2-C10 greater unsaturated hydrocarbons The present invention provides a process for selectively hydrogenating C2-C10 greater unsaturated hydrocarbons (acetylenes and diolefins) at the upstream side of a front depropanizer or front deethanizer in an olefin production plant. After pas... | 02/22/2005 |
| 6830678 | Process of desulphurizing gasoline comprising desulphurization of the heavy and intermediate fractions resulting from fractionation into at least three cuts The invention relates to a process of producing gasoline with a low sulphur content from a feedstock containing sulphur. This process comprises at least one step a1 of selectively hydrogenating the diolefins and acetylenic compounds, at least one separation of the g... | 12/14/2004 |
| 6822127 | Selective hydrogenation catalyst for selectively hydrogenating of unsaturated olefin, process for preparing the same and its use A selective hydrogenation catalyst for the seletive hydrogenation of unsaturated hydrocarbons, a process for preparing this catalyst and its use. The catalyst of the invention comprises a support, active component Pd, rare earth metals, and auxiliary metal Bi, Ag et... | 11/23/2004 |
| 6759562 | Olefin plant recovery system employing a combination of catalytic distillation and fixed bed catalytic steps Presented is an improvement to a previous invention involving the catalytic hydrogenation of the C2 to C5 and heavier acetylenes and dienes in a thermally cracked feed stream without significantly hydrogenating the C2 and C3 | 07/06/2004 |
| 6747181 | Process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a catalyst The invention relates to a process for the hydrogenation of phenyl acetylene in a styrene-containing medium with the aid of a supported nickel catalyst with a nickel content of 10-25 wt. %. This process is by preference used for the hydrogenation of phenyl acetylene... | 06/08/2004 |
| 6734328 | Process for the selective hydrogenation of alkynes An improved selective hydrogenation process for removing acetylenic impurities such as vinyl acetylene, ethyl acetylene, propyl acetylene and acetylene in a steam cracked crude butadiene stream by selective hydrogenation is carried out in two steps. In the first ste... | 05/11/2004 |
| 6689926 | Process for purifying styrene monomer feedstock prior to polymerization A process is disclosed which provides for the reduction of phenylacetylene levels in styrene monomer feedstreams, which process utilizes a normal styrene inhibitor additive, such as an hydroxylamine, injected into the styrene monomer feedstream immediatel... | 02/10/2004 |
| 6686510 | Production of high-purity isobutene and propylene from hydrocarbon fractions with four carbon atoms A process for production, from an olefinic C4 fraction, on the one hand, of high-purity isobutene and, on the other hand, of propylene by metathesis is described. The process comprises three successive stages: 1) the selective hydrogenation of butad... | 02/03/2004 |
| 6632414 | Mini-structured catalyst beds for three-phase chemical processing Three-phase chemical hydrogenation reactions involving the processing of gas-liquid reactant feed streams over "mini-structured" solid catalyst beds formed e.g., of channeled honeycomb monoliths incorporating solid catalysts achieve reaction efficiencies ... | 10/14/2003 |
| 6583260 | Functionalized diene monomers and polymers containing functionalized dienes and methods for their preparation Functionalized monomers and polymerized functionalized monomers selected from the group consisting of 2-(N,N-dimethylaminomethyl)-1,3-butadiene, 2-(N,N-diethylaminomethyl)-1,3-butadiene, 2-(N,N-di-n-propylaminomethyl)-1,3-butadiene, 2-(cyanomethyl)-1... | 06/24/2003 |
| 6512151 | Process for the purification and production of a diolefin hydrocarbon stream A selective acetylene hydrogenation process which is able to produce a high quality diolefin having extremely low levels of acetylene over an extended period of time compared with the prior art. The process of the present invention provides a selective hy... | 01/28/2003 |
| 6469223 | Selective hydrogenation of dienes A process is provided for the selective hydrogenation of dienes from a mixed hydrocarbon stream. The catalyst contains nickel in an amount between approximately 5 and 15 weight percent and, alternatively, may contain nickel oxide and molybdenum oxide in a... | 10/22/2002 |
| 6410811 | Selective hydrogenation process comprising partial separation of hydrogen by a membrane upstream of a reactive column The process of the invention is a process for selective hydrogenation of a hydrocarbon feed containing hydrogen and C2+ hydrocarbons, characterized in that it comprises at least one step for separating a fraction of the hydrogen cont... | 06/25/2002 |
| 6388162 | Diene removal from an olefin feedstock The invention pertains to a process of removing dienes from an olefin feedstock. A preferred olefin feedstock is for the production of primary alcohol compositions by skeletal isomerization of the olefins followed by hydroformylation. In this preferred em... | 05/14/2002 |
| 6344538 | Functionalized diene monomers and polymers containing functionalized dienes and methods for their preparation Functionalized monomers and polymerized functionalized monomers selected from the group consisting of 2-(N,N-dimethylaminomethyl)-1,3-butadiene, 2-(N,N-diethylaminomethyl)-1,3-butadiene, 2-(N,N-di-n-propylaminomethyl)-1,3-butadiene, 2-(cyanomethyl)-1... | 02/05/2002 |
| 6297415 | Catalytic distillation process A catalyst packing which can be produced by vapor deposition and/or sputtering of at least one substance active as catalyst and/or promotor onto woven or knitted fabrics or sheets as support material is used in a process for catalytic distillation in whic... | 10/02/2001 |
| 6278033 | Catalyst and process for purifying streams of materials A catalyst which contains, in its active composition, from 0.05 to 1.0% by weight of at least one metal or compound of a metal of the 10th group of the Periodic Table of the Elements and from 0.05 to 1.0% by weight of at least one metal or compound of a m... | 08/21/2001 |
| 6127588 | Hydrocarbon hydrogenation catalyst and process A supported hydrogenation catalyst composition is disclosed which comprises palladium, an inorganic support such as alumina, and a selectivity enhancer selected from the group consisting of silver, phosphorus, sulfur, and combinations of two or more there... | 10/03/2000 |
| 6118034 | Process for the selective hydrogenation of dienes in reformate flows In the process for the selective hydrogenation of dienes in diene-containing feed streams, a diene-containing feed stream is hydrogenated over a nickel-containing precipitated catalyst at from 40 to 100° C., a pressure of from 3 to 20 bar and a WHSV (wei... | 09/12/2000 |
| 6100373 | Functionalized diene monomers and polymers containing functionalized dienes and methods for their preparation Functionalized diene monomers and polymerized functionalized diene monomers including 2-cyanomethyl-1,3-butadiene, 2-acetoxymethyl-buta-1,3-diene, dimethyl-(2-methylene-but-3-enyl)-amine, 2-dimethylaminomethyl-1,3-butadiene, 2-di-n-propylaminomethyl-... | 08/08/2000 |
| 6096933 | Hydrocarbon hydrogenation and catalyst therefor A supported hydrogenation catalyst composition is disclosed which comprises a palladium component, at least one alkali metal iodide such as, for example, potassium iodide, and an inorganic support material such as alumina. The palladium component is conce... | 08/01/2000 |
| 6075173 | Process for production of isobutene and propylene from hydrocarbon cuts containing four carbon atoms The present invention concerns a process for the production of isobutene and propylene by metathesis of an olefinic C4 cut. The process comprises three successive steps: 1) selective hydrogenation of butadiene with isomerisation of butene-1 to ... | 06/13/2000 |
| 5877364 | Process for the simultaneous selective hydrogenation of diolefins and nitriles in multiple reactor units A process is provided for simultaneous selective hydrogenation of diolefins and nitriles from a hydrocarbon feedstock, wherein hydrogenation is carried out using a catalyst in one reactor zone while partially deactivated catalyst in another reactor zone i... | 03/02/1999 |
