Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7956000 | Process for activating a hydrotreating catalyst The invention pertains to a process for activating an hydrotreating catalyst comprising a Group VIB metal oxide and a Group VIII metal oxide which process comprises contacting the catalyst with an acid and an organic additive which has a boiling point in the range o... | 06/07/2011 |
| 7858549 | Method for regeneration of iron-loaded denox catalysts The invention relates to a method for regenerating denox catalysts having an increased SO2/SO3 conversion rate as a result of the cumulation of iron compounds, and is characterized in that the catalysts are treated with an essentially aqueous a... | 12/28/2010 |
| 7825055 | Regeneration of ionic liquid catalyst using a regeneration metal in the presence of added hydrogen A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at least one ‘regeneration’ metal in a regeneration zone in the presence of added hydrogen under regeneration conditions for a time sufficien... | 11/02/2010 |
| 7666808 | Denitrification catalyst regeneration method A denitrification catalyst regeneration method comprises heat-treating a used denitrification catalyst, then cleaning the denitrification catalyst with an aqueous solution of oxalic acid, and then finish washing the denitrification catalyst with water to regenerate ... | 02/23/2010 |
| 7592283 | Method of regenerating honeycomb type SCR catalyst by air lift loop reactor Provided is a method of regenerating a honeycomb type SCR catalyst which is used in selective catalytic reduction (SCR), comprising treating a waste honeycomb type SCR catalyst used in an industrial boiler with a mixed solution containing 0.1 M to 1.0 M H2 | 09/22/2009 |
| 7569506 | Method for regenerating iron-loaded denox catalysts The invention relates to a method for regenerating DeNOx catalysts having an increased SO2/SO3 conversion rate as a result of the cumulation of iron compounds, and is characterized in that the catalysts are treated with an essentially aqueous a... | 08/04/2009 |
| 7399725 | Perchlorate destruction Perchlorate is removed and effectively destroyed in devices and methods that employ a eluting solvent in which the anion of an acid solubilizes Ti (III), which may be electrochemically generated or added in situ. Using such solvents, destruction of perchlorate is un... | 07/15/2008 |
| 7384882 | Process for regenerating titanium-containing catalysts The present invention discloses a process for regenerating titanium-containing catalysts, characterized in that a deactivated catalyst is treated in an acidic solution having a pH value of ≦3, and then dried and calcined. The process is simple in procedure and can... | 06/10/2008 |
| 7316988 | Gas turbine single plant modifying method, a catalyst re-using method and a re-produced catalyst A high temperature denitration catalyst of a gas turbine single plant contains TiO2, at least one of WO3 and MoO3 and V2O5 of 0.5 wt % or less, preferably 0.2 wt % or less, or none of V2O5,... | 01/08/2008 |
| 7309675 | Method for regenerating platinum catalysts The regeneration of platinum group metal suspension catalysts involves a dissolution step using HCl and an oxidant, such as Cl2 or H2O2, and a precipitating step carried out in the presence of a reducing agent, especially an aldehyde... | 12/18/2007 |
| 7202195 | Method of heat treating carbonaceous material to enhance its adsorption of taste-and-odor-causing and other organic compounds from water An activated carbon that is capable of adsorbing taste-and-odor-causing and other organic compounds, wherein the activated carbon comprises a uniquely modified carbonaceous material. The activated carbon comprising: (a) a pore volume per gram of the activated carbon... | 04/10/2007 |
| 7193963 | Method for inputting information into a data storage medium that is optically recordable and readable In a method of entering information into an optically writable and readable data storage medium having a polymer film which can be changed locally by heating in order to store information and to which there is assigned an absorber dye (34) which is set up to ... | 03/20/2007 |
| 7179426 | Large catalyst activator A catalyst activator vessel for heat conditioning a catalyst is disclosed. The activator vessel includes inner and outer vessels, a perforated, normally generally horizontal grid plate within the inner vessel, and a fluid path extending through the grid plate within... | 02/20/2007 |
| 7115537 | Process for the regeneration of zeolite catalysts A process for the regeneration of a zeolitic catalyst which is at least partially exhausted by use in the synthesis of optionally substituted methylenedianiline (MDA) and derivatives thereof, or of a mixture of optionally substituted MDA and derivatives thereof, wit... | 10/03/2006 |
| 7084085 | Process for regenerating a layered double hydroxide A process for producing alumina from bauxite is described in which bauxite is treated with an alkali to form a mixture comprising a solution of aluminum-containing ions and alumina trihydrate is precipitated from the solution. The process comprises treatment of the ... | 08/01/2006 |
| 7033418 | Method and materials for purifying hydride gases, inert gases, and non-reactive gases A process for removing trace amounts of moisture and/or one or more impurities from contaminated hydride, inert and non-reactive gases, thus decreasing the concentration of the impurities to parts-per-billion (ppb) or parts-per-trillion (ppt) levels. The gas purifie... | 04/25/2006 |
| 7014737 | Method of purifying nanotubes and nanofibers using electromagnetic radiation Disclosed are methods of purifying mixtures comprising nanofibers and/or nanotubes and residual catalyst particles that are covered by outer layers of the nanotube or nanofiber material. The mixtures are exposed to electromagnetic radiation, which induces localized ... | 03/21/2006 |
| 6992038 | Zinc chloride-loaded support and method for producing the same The present invention is to solve the problems caused by a conventional method for producing a zinc chloride-loaded support wherein zinc chloride is adsorbed on a solid support in an aqueous solution of zinc chloride. The problems include environmental destruction c... | 01/31/2006 |
| 6972327 | Regeneration of chromatography material The invention provides improved methods of regenerating and using affinity chromatography material, in particular Protein A affinity chromatography resins. ... | 12/06/2005 |
| 6933257 | Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. ... | 08/23/2005 |
| 6929701 | Process for decoating a washcoat catalyst substrate The invention relates to a process for decoating a used washcoat carrier substrate to produce a clean, inert carrier or substrate. In a preferred embodiment, a process according to the invention includes treating a washcoat catalyst substrate in an aqueous solution ... | 08/16/2005 |
| 6923922 | Recover and recycle rhodium from spent partial oxidation catalysts A method for the recovery of rhodium from spent supported catalysts. In one embodiment, a method for recovering rhodium from a host material includes roasting the host material in air at a temperature sufficient to convert at least a portion of rhodium to Rh2 | 08/02/2005 |
| 6921731 | Process for regenerating Pd catalysts Process for regenerating a Pd catalyst after a homogeneously catalyzed C—C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with I2 or Br2. The Pd catalyst can then be us... | 07/26/2005 |
| 6905997 | Method for generating catalysts A process is provided for the regeneration of a heterogeneous catalyst used for the preparation of compounds containing NH2 groups by the hydrogenation, with hydrogen, of compounds containing at least one unsaturated carbon-nitrogen bond, wherein ... | 06/14/2005 |
| 6891076 | Process for the recovery of perfluorinated sulphonic acids from spent acid residue Process for the recovery of perfluorinated sulphonic acid from a hydrocarbon residue, comprising the steps of (a) treating the residue with an alkyl ammonium salt of the perfluorinated sulphonic acid or a mixture of an alkyl ammonium salt of the perfluo... | 05/10/2005 |
| 6878654 | Reactivation of aromatics alkylation catalysts The present invention provides a process for regenerating a spent aromatics alkylation or transalkylation catalyst comprising a molecular sieve by contacting the spent catalyst with an oxygen-containing gas at a temperature of about 120 to about 600° C. and then co... | 04/12/2005 |
| 6872859 | Process for the preparation of bisphenols with zeolites The present invention relates to a process for preparing bisphenols which comprises reacting a carbonyl compound containing at least two carbon atoms with an aromatic compound, containing a hydroxyl group and at least one hydrogen atom bound to the aromatic ring, in... | 03/29/2005 |
| 6861383 | Catalyst support material and use thereof A process for the preparation of a catalyst support material involving the steps of: (a) subjecting a used titania-on-silica catalyst to a decoking treatment, (b) washing the decoked catalyst with a washing liquid selected from an aqueous solution of a mineral acid,... | 03/01/2005 |
| 6800585 | Catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same Disclosed are a catalyst for selective catalytic reduction of nitrogen oxides and a method for preparing the same. Useful for the removal of nitrogen oxides is a catalyst prepared using spent catalysts having been absorbed with vanadium, nickel and sulfur in the hyd... | 10/05/2004 |
| 6764662 | Recover and recycle rhodium from spent partial oxidation catalysts A method for the recovery of rhodium from spent supported catalysts. In one embodiment, a method for recovering rhodium from a host material includes roasting the host material in air at a temperature sufficient to convert at least a portion of rhodium to Rh2 | 07/20/2004 |
| 6753285 | Process for regenerating a used precious metal catalyst The invention is directed to a process for the regeneration of a catalyst, said catalyst comprising at least one precious metal on an amorphous silica-alumina support, in which process the catalyst is impregnated with an acid, followed by reduction or oxidation of t... | 06/22/2004 |
| 6673732 | Process for catalytic ammonia production--preparation and recovery of ammonia synthesis catalyst A catalyst active in ammonia synthesis with improved activity and a process for the recovery of useful components from the catalyst.... | 01/06/2004 |
| 6673733 | Method for regenerating heteropolyacid catalyst and method for producing methacrylic acid The invention provides a method for regenerating with high efficiency a deteriorated catalyst of reduced activity, said catalyst originating from a heteropolyacid catalyst containing heteropolyacid formed of molybdophosphoric acid and/or molybdovanadophos... | 01/06/2004 |
| 6559085 | Method for regenerating molybdenum-containing oxide fluidized-bed catalyst A method for regeneration of a molybdenum-containing oxide fluidized bed catalyst which comprises impregnating a fluidized catalyst of a metal oxide containing molybdenum, bismuth and iron which has been deteriorated by being used for a reaction in produc... | 05/06/2003 |
| 6417128 | Methods and replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst This invention relates to methods of replacing water and cyclohexanone with acetic acid in an aqueous solution of catalyst, preferably a cobalt compound. Such an aqueous solution is produced by extracting catalyst with water from a cyclohexanone/water sol... | 07/09/2002 |
| 6395665 | Methods for the regeneration of a denitration catalyst This invention provides a method for the regeneration of a denitration catalyst which comprises cleaning a denitration catalyst having reduced denitration power with an aqueous alkaline solution to remove the substances deposited thereon, and subjecting t... | 05/28/2002 |
| 6395664 | Process for reactivating a deactivated dehydrocyclodimerization catalyst with water This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The... | 05/28/2002 |
| 6291394 | Process for improving catalysts Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals which catalysts in addition contain a nanocrystalline phase of alumina of a crystalline size at the surface of les... | 09/18/2001 |
| 6281157 | Self-catalytic bath and method for the deposition of a nickel-phosphorus alloy on a substrate Disclosed are a self-catalytic bath and a method for the deposition of Ni--P alloy on a substrate. The bath comprises nickel sulfate, sodium hypophosphite as a reducing agent, acetic acid as a buffer and traces of lead as a stabilizer. It also includes a ... | 08/28/2001 |
| 6248683 | Process for the regeneration of used silica gel The present invention is concerned a process for the regeneration of the spent silica gel used in chromatography and for any other kind of silica. The process comprises 5 main steps, namely: washing with an extractant of organic compounds and removing volatile... | 06/19/2001 |
