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| Number | Title | Issue Date |
| 8147786 | Gas exhaust system of film-forming apparatus, film-forming apparatus, and method for processing exhaust gas A film-forming apparatus includes a processing chamber, and TiCl4 gas and NH3 gas are supplied into the processing chamber for forming a TiN film on a substrate W in the processing chamber by CVD. The processing chamber has a gas exhaust system... | 04/03/2012 |
| 8092769 | Production of one or more useful products from lesser value halogenated materials A process and apparatus are described for converting a feed that is substantially comprised of halogenated materials, and especially byproduct and waste chlorinated hydrocarbons as are produced from a variety of chemical manufacturing processes, to one or more highe... | 01/10/2012 |
| 8080226 | Methods and sytems for the destruction of perfluorinated compounds Methods and systems for the destruction of one or more PFCs in a gas stream are provided. The gas stream can come from semiconductor processing, for example. The PFCs in the gas stream are reacted with steam in the presence of a catalyst to fragment the PFCs into ot... | 12/20/2011 |
| 7976807 | Method for detoxifying HCD gas and apparatus therefor Hexachlorodisilane is decomposed into hydrochloric acid, silicon dioxide and water by introducing hexachlorodisilane-containing flue gas into a reaction region without moistening the flue gas and by supplying oxygen-containing gas that also contains a small amount o... | 07/12/2011 |
| 7976806 | Granular material comprising porous particles containing calcium and/or magnesium A granular material having a high strength and a large BET specific surface area composed of porous particles comprising calcium oxide and calcium hydroxide wherein the calcium oxide is contained in an amount of 30 to 80 weight % based on a total amount of the calci... | 07/12/2011 |
| 7972582 | Method and apparatus for treating exhaust gas An apparatus for treating an exhaust gas that includes a pre-treatment section that removes a powdery component, a water-soluble component or a hydrolytic component from the exhaust gas. The exhaust gas contains a fluorine compound and CO. A heating oxidative decomp... | 07/05/2011 |
| 7833503 | Exhaust gas treatment A method for scrubbing a halogen-containing gas, comprises contacting the halogen-containing gas with water at a temperature of at least 30° C., the gas optionally subsequently being subjected to a further treatment step comprising contacting it with water at a tem... | 11/16/2010 |
| 7790129 | Set of processes for removing impurities from a silcon production facility Two low cost processes for removing boron, phosphorus, carbon and titanium during the process of converting metallurgical grade silicon to electronic grade silicon are described. A first process removes boron and titanium by using one or more high temperature solids... | 09/07/2010 |
| 7691351 | Method for treatment of a gas stream containing silicon tetrafluoride and hydrogen chloride The present invention is directed to a method for treatment of a gas stream comprising silicon tetrafluoride and hydrogen chloride. For example, the present invention is directed to a method for treatment of such a gas stream that involves contacting the gas stream ... | 04/06/2010 |
| 7678353 | Process for scrubbing alkyl halides from gases Alkyl halides can be effectively scrubbed from gas streams containing them by passing the gas streams through dispersers having a very small pore size into an aqueous scrubbing liquid containing a nucleophile such as thiosulfate. Optionally, the addition of a water-... | 03/16/2010 |
| 7476374 | Catalytic destruction of halogenated hydrocarbons The destruction of chlorinated hydrocarbons, such as carbon tetrachloride, over lanthanide-based solid catalysts in the presence of steam has been investigated between 200 and 350° C. Ln2O3/AL2O3 (e.g. Ln=La, Nd, Ce and P... | 01/13/2009 |
| 7438876 | Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury A selective catalytic reduction apparatus has at least first and last catalyst layers in series for reducing nitrogen oxides in a flue gas, at least one interstage heat exchanger located after the first layer and before the last layer, that lowers flue gas temperatu... | 10/21/2008 |
| 7384615 | Method oil shale pollutant sorption/NOreburning multi-pollutant control A method of decreasing pollutants produced in a combustion process. The method comprises combusting coal in a combustion chamber to produce at least one pollutant selected from the group consisting of a nitrogen-containing pollutant, sulfuric acid, sulfur trioxide, ... | 06/10/2008 |
| 7381387 | Mercury reduction system and method in combustion flue gas using coal blending A method to reduce mercury in gas emissions from the combustion of low rank coal in a combustion system including: combusting coal having a low chlorine content in the combustion system, wherein elemental mercury (Hg0) is released in the flue gas produced... | 06/03/2008 |
| 7371357 | Process for removal of pollutants A process for the removal of pollutants from a combustion process and, more particularly, a process for removing pollutants such as carbon dioxide, mercury, sulphur dioxide, nitrogen compounds and oxygen compounds from a combustion process. The process includes the ... | 05/13/2008 |
| 7368096 | Process for separating solids from a purification purge stream The disclosure is directed to a process for isolating solids from a purification purge stream comprising an impurity present as a solid, wherein the purification purge stream is substantially free of chlorides other than titanium tetrachloride and vanadium chloride,... | 05/06/2008 |
| 7348288 | Catalyst composition A process comprises passing a contaminated gaseous stream through a photocatalytic stage and, thereafter, through a catalytic stage. ... | 03/25/2008 |
| 7347980 | Process for treating fluorine compound-containing gas A gas stream containing at least one fluorine compound selected from the group consisting of compounds of carbon and fluorine, compounds of carbon, hydrogen and fluorine, compounds of sulfur and fluorine, compounds of nitrogen and fluorine and compounds of carbon, h... | 03/25/2008 |
| 7329397 | Method of removing ammonia from fly ash and fly ash composition produced thereby A method of treating fly ash and fly ash treated thereby, the method involving contacting ammonia-laden fly ash with an organic base-containing treatment composition, where the organic base causes the ammonia within the fly ash to evolve from the fly ash. The treatm... | 02/12/2008 |
| 7323583 | Catalysts for the production of methylchlorosilanes using zinc oxide promoters The present invention provides a catalyst that may be used to facilitate the formation of dimethylchlorosilanes. A catalyst in which copper oxide and zinc oxide are in intimate contact and form agglomerated particles allows for the increased selectively of the produ... | 01/29/2008 |
| 7323152 | Catalyst or sorbent beds A fixed bed containing a particulate catalyst or sorbent material (10) subject to operation at high temperature having a shaped boundary member (16) inclined to the direction of fluid flow through the bed that maintains the depth of said catalyst or so... | 01/29/2008 |
| 7318915 | Oxidation-reduction catalyst and its process of use This invention relates generally to a ruthenium stabilized oxidation-reduction catalyst useful for oxidizing carbon monoxide, and volatile organic compounds, and reducing nitrogen oxide species in oxidizing environments, substantially without the formation of toxic ... | 01/15/2008 |
| 7314846 | Method for preparing metal oxide particles and an exhaust gas purifying catalyst The present invention relates to metal oxide particles having cores comprising larger molar amounts of zirconia than of ceria, and surface layers comprising larger molar amounts of ceria than of zirconia. Further, the present invention relates to a method for prepar... | 01/01/2008 |
| 7303735 | Process for the removal of contaminants from gas streams The present invention provides for a method and apparatus for removing contaminants from a gas stream such as a flue gas stream from an industrial process. The process utilizes a prescrubber to contact the gas stream before the gas stream contacts an oxidizer in an ... | 12/04/2007 |
| 7294315 | Method and apparatus for disposing of fluorine-containing compound by decomposition Fluorine compounds such as C2F6, CF4, CHF3, SF6 and NF3, are made in contact with a fluorine compound decomposition catalyst and a catalyst the decomposition oft least one of CO, SO2F2... | 11/13/2007 |
| 7294320 | Hydrogen peroxide abatement of metal hydride fumes A method and apparatus for reducing the level of metal hydride found in effluent of a process chamber is disclosed. The method includes introducing hydrogen peroxide into the process chamber to react with metal hydride and reduce the level of metal hydride to a leve... | 11/13/2007 |
| 7285247 | Apparatus and method for operating a fuel reformer so as to purge soot therefrom A method of operating a fuel reformer includes advancing a first air/fuel mixture having a first air-to-fuel ratio into the fuel reformer. The method further includes determining if a soot purge is to be performed and generating a purge-soot signal in response there... | 10/23/2007 |
| 7255842 | Multi-component removal in flue gas by aqua ammonia A new method for the removal of environmental compounds from gaseous streams, in particular, flue gas streams. The new method involves first oxidizing some or all of the acid anhydrides contained in the gas stream such as sulfur dioxide (SO2) and nitric o... | 08/14/2007 |
| H2198 | Multi-stage pyrolysis systems for treating chlorine contaminated wastes A method of decontaminating solids contaminated with chlorinated hydrocarbons includes a first step of heating the contaminated solids at a temperature high enough to volatize chlorine contaminates but below a temperature range favorable to the formation of the diox... | 08/07/2007 |
| 7252768 | Method for eliminating metal halides that are present in a liquid or gaseous, organic or non-organic effluent The invention relates to a method for eliminating metal halides which are present in a liquid or gaseous, organic or non-organic effluent. According to the invention, the elimination is carried out by absorption of said metal halides on alumina agglomerates. The inv... | 08/07/2007 |
| 7244281 | Method and apparatus for trapping and purging soot from a fuel reformer A plasma fuel reformer assembly for producing reformate gas includes a fuel reformer having an air/fuel input assembly, an electrode assembly, and a soot trap positioned downstream of the electrode assembly. The electrode assembly includes a first electrode and a se... | 07/17/2007 |
| 7238650 | Low-chlorine, polyolefin-substituted, with amine reacted, alpha-beta unsaturated carboxylic compounds A composition of matter comprising an amine acylated with a hydrocarbyl group substituted carboxylic acylating agent containing an average of from 1.3 to 1.6 groups derived from α,β-unsaturated carboxylic compounds per Mn of the hydrocarbyl group... | 07/03/2007 |
| 7220396 | Processes for treating halogen-containing gases There are disclosed various processes, apparatuses and systems for treating a halogen-containing gas such as F2 that involve generating a plasma in order to reduce chemically the halogen-containing gas into products that are more environmentally manageabl... | 05/22/2007 |
| 7208128 | Manganese-based oxidation catalyst A catalyst for the oxidation of volatile organic compounds and carbon monoxide comprising manganese and alumina, such catalyst having been impregnated with a phosphorus compound. The presence of the phosphorus compound results in a significant oxidative conversion o... | 04/24/2007 |
| 7163615 | Method of treating substance to be degraded and its apparatus There is provided a method of treating a substance to be degraded comprising the steps of: degrading the substance to produce a degraded product; contacting the product obtained in the degrading step with a liquid; and entrapping a component of the product not trapp... | 01/16/2007 |
| 7156027 | Method for producing soil, soil-processing unit, method for processing and unit for processing An object to be treated such as soil, burned fly ashes, or the like containing organic halides is introduced to a hermetically sealable thermal decomposition furnace 310 and heated under reduced pressure. Emitted gases of the object to be treated are treated ... | 01/02/2007 |
| 7157064 | Method for treatment of flue gas cleaning products The invention relates to a method of treating a halogen containing solid or semi solid waste material from a flue gas cleaning process, wherein the amount of alkaline compounds is sufficient to provide a suspension of the waste material in water with a pH value of a... | 01/02/2007 |
| 7150669 | Electroluminescent panel and a manufacturing method therefor A second planarization insulating layer disposed under an organic EL layer is heat-treated so as to bring the moisture content thereof to an extremely low level. By lowering this moisture content to 77 ng/cm3 or below, an organic EL panel can be realized ... | 12/19/2006 |
| 7138096 | Method for decomposition oxidation of gaseous pollutants An apparatus is provided for treating pollutants in a gaseous stream. The apparatus comprises tubular inlets for mixing a gas stream with other oxidative and inert gases for mixture and flame production within a reaction chamber. The reaction chamber is heated by he... | 11/21/2006 |
| 7128890 | Purification of hydrochloric acid obtained as by-product in the synthesis of methanesulfonic acid Process for purifying the hydrochloric acid obtained as by-product in the synthesis of MSA, characterized in that the gaseous flow of hydrogen chloride evacuated from the top of the synthesis reactor is placed in contact in a treatment column, counter-currentwise, w... | 10/31/2006 |
