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| Number | Title | Issue Date |
| 8105481 | Reduction of organic halide contamination in hydrocarbon products A method for reducing halide concentration in a hydrocarbon product having an organic halide content from 50 to 4000 ppm which is made by a hydrocarbon conversion process using an ionic liquid catalyst comprising a halogen-containing acidic ionic liquid comprising c... | 01/31/2012 |
| 7955498 | Reduction of organic halide contamination in hydrocarbon products A method for reducing halide concentration in a hydrocarbon product having an organic halide content which is made by a hydrocarbon conversion process using a halogen-containing acidic ionic liquid catalyst comprising contacting at least a portion of the hydrocarbon... | 06/07/2011 |
| 7601255 | Process for removal of residual catalyst components A process for reducing the level of residual catalyst comprising one or more alkylhalide, alkoxyhalide, metal halide, metal oxyhalide, alkyl metal, alkoxy metal, boron compound and coordinated metal compound wherein the metal is a Group III, Group IV, Group V, Group... | 10/13/2009 |
| 7365152 | Method for producing highly reactive, low halogen polyisobutenes A process is described for preparing polyisobutene having a low halogen content, in which isobutene is polymerized in the presence of a catalyst which comprises a halogenated Lewis acid, the catalyst is removed and/or deactivated, and the resulting polyisobutene is ... | 04/29/2008 |
| 7196034 | Nickel-iron-silica-alumina The invention is directed to a catalyst suitable for the hydrogenation of hydrocarbon resins, comprising a supported nickel on silica and alumina catalyst, said catalyst having a nickel content of 45 to 85 wt. %, a silicon content, calculated as SiO2, of ... | 03/27/2007 |
| 7183449 | Process for the treatment of the by-products from a reaction for the production of organic compounds Process for the treatment of by-products from a reaction for the production of organic compounds comprising a stage of evaporation of a liquid phase comprising heavy by-products on a surface, in order to form a concentrated phase comprising the bulk of the heavy by-... | 02/27/2007 |
| 6998050 | Method of treating fats and oils The present invention provides a method of treating fats and oils containing low concentrations of aromatic halogen compounds and other contaminants by contacting the fats or oils with an adsorbing agent. The adsorbing agent contains a porous body and a non-protonic... | 02/14/2006 |
| 6991720 | Structured catalysts incorporating thick washcoats and method Structured catalysts comprising thick porous inorganic catalyst support coatings disposed on monolithic catalyst support structures, the support coatings having open interconnected porosities of controlled pore size but being characterized by improved durability, ph... | 01/31/2006 |
| 6979394 | Alkylaromatic process with catalyst regeneration A process for producing a product aromatic compound is disclosed which uses an on-stream alkylation reactor and an off-stream alkylation reactor, and in which at least a portion of the feed aromatic compound in the effluent stream of off-stream alkylation reactor un... | 12/27/2005 |
| 6974496 | Apparatus for thermal swing adsorption and thermally-enhanced pressure swing adsorption The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention,... | 12/13/2005 |
| 6905664 | Method for removal of PCDD and PCDF from combustion gases A method for the removal of micro-pollutants, in particular PCDD and PCDF, from the combustion gases resulting from the incineration of chlorinated organic wastes (ICG), the gases containing acidic products and traces of metals and being treated with catalytically a... | 06/14/2005 |
| 6902662 | Method of reducing hydrolysis in hydrocarbon streams A method of reducing hydrolysis in a hydrocarbon stream comprising adding to a hydrocarbon stream containing a chloride compound which undergoes hydrolysis at elevated temperatures in the presence of water to form hydrochloric acid, an effective amount of a treating... | 06/07/2005 |
| 6649044 | Process for the reductive dehalogenation of halogenated hydrocarbons The present invention relates to a process for the reductive dehalogenation of halogenated hydrocarbons. It comprises reacting halogenated hydrocarbons with a reducing metal and a hydrogen donating compound in the presence of an amine. Preferably, the hal... | 11/18/2003 |
| 6638488 | Method and apparatus for removing organic hazardous substances using selected solvents Method and apparatus for isolating, decomposing, and fixing the organic hazardous substances in a stable manner using chemical techniques and isolating and decomposing the organic hazardous substances from various waste mixtures. The temperature treatment... | 10/28/2003 |
| 6576122 | Process for the reductive dehalogenation of liquid and solid halogenated hydrocarbons 1. Process for the reductive dehalogenation of liquid or solid halogenated hydrocarbons. 2.1 Toxic liquid or solid halogenated hydrocarbons such as DDT, HCH, in particular halogenated aromatics such as TCB, PCB, PCP and PCDD/PCDF as such or as contaminant... | 06/10/2003 |
| 6504068 | Method for converting a plastic waste into oil in a stainless steel reactor A method of converting a plastic waste into oil by decomposing the plastic waste by a reaction using water in a supercritical or near supercritical region as a reaction medium. In this method, the reaction is conducted by using a tubular continuous reacto... | 01/07/2003 |
| 6476284 | Method of dehalogenating hydrocarbon containing carbon-carbon double bond An efficient dehalogenation can be carried out by a method which comprises treating an organic compound containing a compound of halogen, such as fluorine or chlorine, as an impurity and having non-conjugated carbon-carbon double bonds, for example, buten... | 11/05/2002 |
| 6462151 | Method of removing and recovering boron trifluoride with metal fluoride and process for polyolefin production using the same Boron trifluoride can be recovered in a reusable state by a method that is economical and does not cause environmental pollution, which method comprises the steps of bringing a fluid containing boron trifluoride or its complex into contact with metal fluo... | 10/08/2002 |
| 6455023 | Metallic catalysts for non-neutral liquid media Carbon monolith-supported catalysts with high leach resistance used in catalytic applications involving strong acidic and basic conditions in a pH range of from 0 to 6.5 and from 7.5 to 14, are respectively described. The leach resistance of the catalyst ... | 09/24/2002 |
| 6423211 | Method for reducing organic fluoride levels in hydrocarbons A system and/or process for decreasing the level of at least one organic fluoride present in a hydrocarbon mixture by first passing the hydrocarbon mixture to an eductor and educting into the hydrocarbon mixture a catalyst comprising a volatility reducing... | 07/23/2002 |
| 6312587 | Method of treating polychlorinated aromatic compound A method of treating a polychlorinated aromatic compound or a hydrocarbon oil containing a polychlorinated aromatic compound involves the step of heating while stirring the polychlorinated aromatic compound or the hydrocarbon oil containing the polychlori... | 11/06/2001 |
| 6281405 | Alkylation process using membrane for recovery of halides A process for recovering halides from hydrocarbon containing streams is disclosed using a sulfonated hexafluro bis-A-polysulfone membrane of polymers and copolymers having the polymer repeat unit of the formula: ##STR1## in the polymer or copolymer. This ... | 08/28/2001 |
| 6114593 | Method for reducing organic fluoride levels in hydrocarbons A system and/or process for decreasing the level of at least one organic fluoride present in a hydrocarbon mixture by first passing the hydrocarbon mixture to an eductor and educting into the hydrocarbon mixture a catalyst comprising a volatility reducing... | 09/05/2000 |
| 6072099 | Process for low temperature pyrolysis of dioxins Pyrolysis of dioxins adsorbed on a carbonaceous adsorbent such as activated carbon or activated cokes is carried out with much higher efficiency by heating a dioxins-adsorbed carbonaceous adsorbent in the presence of an alkali component in an oxygen-defic... | 06/06/2000 |
| 6043404 | Removal of alkyl halides from hydrocarbon stream A process for the removal of alkyl halides from a liquid hydrocarbon substrate by reaction of the halides with an isoalkane and/or aromatic hydrocarbons in the presence of an acid catalyst supported on a solid support material.... | 03/28/2000 |
| 6023007 | Catalytic decomposition of perfluoro-compound A method for decomposing a perfluorocarbon in the presence of water vapor or water vapor and molecular oxygen in gas phase, in which a catalyst of a phosphate comprising at least one element selected from the group consisting of aluminum, boron, alkali ea... | 02/08/2000 |
| 5994604 | Method and apparatus for low temperature destruction of halogenated hydrocarbons A method and apparatus for decomposing halogenated hydrocarbons are provided. The halogenated hydrocarbon is mixed with solvating agents and maintained in a predetermined atmosphere and at a predetermined temperature. The mixture is contacted with recycla... | 11/30/1999 |
| 5993607 | Process for the purification of chlorinated aromatic hydrocarbons In a process for the purification by distillation of chlorinated aromatic hydrocarbons originating from the chlorination of aromatic hydrocarbons in the presence of FeCl3, the crude reaction product is first partially degassed and then directly... | 11/30/1999 |
| 5986147 | Method and solution for removal of poly chlorinated biphenyl A method and apparatus is provides for decontamination of soil from contaminates such as polychlorinated biphenyls. The method involves (a) admixing a short chain alcohol and a ethoxylated alcohol to provide a solvent composition, (b) admixing the solvent... | 11/16/1999 |
| 5962366 | Treatment to improve the durability and selectivity of a hydrodechlorination catalyst and catalyst The durability and selectivity of a supported nobel metal hydrodeclorination catalyst can be improved by treating the supported catalyst, which comprises support and catalytic noble metal, with a late transition metal halide salt, a post transition metal ... | 10/05/1999 |
| 5951852 | Destruction of halide containing organics and solvent purification A process for removal of halide from a halide containing organic compound in a solvent, a process for simultaneous removal of halide from a halide containing organic compound and reduction of an oxygen containing organic compound in a solvent, a process f... | 09/14/1999 |
| 5936137 | Process for destroying halogenated compounds A method of destroying halogenated compounds by a vapor phase chemical reaction using an alkali metal vapor, alkaline earth metal vapor, or a combination of the two, in a heated reactor to produce mineralized or solid products. The production of solid pro... | 08/10/1999 |
| 5928500 | Removal of halogenated organic compounds from hydrocarbon streams This invention is a process for removing minor amounts of organic halide e.g., organic chloride, contaminants from hydrocarbon feedstocks by contact with a regenerable solid adsorbent comprising a metal and/or metal hydride selected from nickel, cobalt or... | 07/27/1999 |
| 5895636 | Catalytic compositions and methods for suppression of halogenation of organic compounds with oxidation products of halogenated organic compounds in gaseous emission streams Methods and chemical compositions for treating a gas stream comprising non-halogenated and halogenated organic compounds while suppressing halogenation of the non-halogenated organic compounds with the oxidation products of the halogenated organic compoun... | 04/20/1999 |
| 5885944 | Low chlorine polyalkylene substituted carboxylic acylating agent compositions and compounds derived therefrom Polyalkylene substituted carboxylic acylating agents which contain chlorine are synthesized by chlorine induced condensation of polyalkylenes and -ଲ unsaturated carboxylic groups are treated with sulfur to reduce chlorine content of the carbo... | 03/23/1999 |
| 5783068 | Process for dechlorination of a spent oil fraction The present invention relates to a process for dechlorinating a spent lubricating oil fraction, optionally mixed with another hydrocarbon stock. Upstream of the recycling operation in refining the spent oil, the latter is subjected to a dechlorination ope... | 07/21/1998 |
| 5773549 | Process for hydrotreating an organic feedstock containing a halogenated component and contaminated with distillable oxygen and nitrogen compounds having boiling points lower than the halogenated compounds The invention provides a process for hydrotreating an organic feedstock containing a halogenated component and contaminated with distillable oxygen compounds, and/or distillable nitrogen compounds having boiling points lower than the halogenated compounds... | 06/30/1998 |
| 5770048 | Method for removal of acid from compressor oil An alcohol, specifically ethanol, methanol and isopropanol, is used to remove acid from a refrigeration system, a heat pump or an air conditioner. The alcohol vaporizes acid, primarily inorganic acid, in the system and, in the filter/dryer, reacts with su... | 06/23/1998 |
| 5721189 | Treatment to improve the durability of a hydrodechlorination catalyst and catalyst The durability of a supported noble metal hydrodechlorination catalyst can be improved by (1) treating the supported catalyst, which comprises support and catalytic noble metal, with a non-elemental halide compound, which is not a mineral acid (such as an... | 02/24/1998 |
| 5672266 | Treatment of organic compounds to reduce chlorine level The present invention relates to a process for reducing the chlorine content of an organochlorine compound comprising: introducing into the organochlorine compound, at least one Lewis acid to form a mixture, and contacting the organochlorine compound with... | 09/30/1997 |
