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8173566 Process for regenerating a spent sorbent  
A method and apparatus is provided for regenerating a sorbent that has been poisoned by components derived from flue gas. The sorbent is treated with an agent to remove the poisoning components and...
8153542 Method for treating flue gas catalysts  
A method for treating a catalyst base that comprises a contact area of porous material. A fluid, such as a flue gas stream, can be conducted along the contact area. A catalytically relevant...
8148284 Injection of liquid sorbent conditioning into a sorbent transporting passageway  
A system for effecting the pretreatment therewith of a sorbent comprising a conveying line (105), such as a pipe, and a plurality of solution nozzles operative for purposes of introducing a...
7901644 Catalytic gasification process with recovery of alkali metal from char  
Processes are described for the extraction and recovery of alkali metal from the char that results from catalytic gasification of a carbonaceous material. Among other steps, the processes of the...
7897126 Catalytic gasification process with recovery of alkali metal from char  
Processes are described for the extraction and recovery of alkali metal from the char that results from catalytic gasification of a carbonaceous material. Among other steps, the processes of the...
7838455 Method of regeneration of titanium-containing molecular sieve catalyst  
Disclosed herein is a method of regenerating a titanium-containing molecular sieve catalyst. Particularly, this invention provides a method of regenerating a titanium-containing molecular sieve...
7833510 Method for activating hydrogenation catalyst and method for producing hydrogen peroxide including same  
A method for producing hydrogen peroxide by an anthraquinone process includes the steps of: reducing with hydrogen a working solution containing an organic solvent and anthraquinone in the presence...
7741239 Methods of regeneration of SCR catalyst poisoned by phosphorous components in flue gas  
A method of regeneration of a SCR catalyst for use in high temperature thermal processes such as in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein...
7723251 Method of regeneration of SCR catalyst  
A method of regeneration of a SCR catalyst for use in a power plant facility burning fossil fuels, bio-based fuels, or a combination thereof, wherein poisons are removed from the catalyst. The...
7674739 Regeneration of ionic liquid catalyst using a metal in the absence of added hydrogen  
A process for regenerating a used acidic ionic liquid catalyst comprising contacting the used ionic liquid catalyst with at least one metal in a regeneration zone in the absence of added hydrogen...
7592282 Enhancement of alkylation catalysts for improved supercritical fluid regeneration  
A method of modifying an alkylation catalyst to reduce the formation of condensed hydrocarbon species thereon. The method comprises providing an alkylation catalyst comprising a plurality of active...
7578984 Regeneration of caustic solutions  
A caustic recovery system comprising an oxygen source adapted to provide a gas stream comprising at least 30% oxygen. A method of regenerating caustic comprising intermingling spent caustic with a...
7559993 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...
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, a...
7232782 Regeneration, pretreatment and precipitation of oxides of manganese  
Methods and systems for regenerating and pretreating oxides of manganese and precipitation of oxides of manganese from manganese salt solutions. The oxides of manganese and manganese salt solutions...
7183233 Method for separating an esterification catalyst  
Process for removal of the esterification catalyst by separation from a crude plasticizer ester obtained by reacting a dicarboxylic acid with C8–C13 alcohols, by treating the crude ester with an a...
6995107 Raney catalyst, process for producing it and process for producing a sugar-alcohol using the same  
To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same. For this object,...
6797184 Catalyst for treating waste water, method for preparing the same and process for treating waste water  
A method is provided for oxidizing and/or decomposing organic and/or inorganic oxidizable substances in waste water by wet oxidation with a use of a catalyst, wherein the oxidizable substances are...
6777369 Process for producing catalyst  
The present invention relates to the effective utilization of a used catalyst containing at least molybdenum, an A element (at least one element selected from the group consisting of phosphorus and...
6727202 Enhanced NOx trap having increased durability  
A catalytic trap disposed in an exhaust passage of an internal combustion engine which is operated with periodic alternations between lean and stoichiometric or rich conditions, for abatement of...
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.
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...
6558533 Process for sulfur removal from hydrocarbon liquids  
The present invention is directed to a method of desulfurization of a sulfur laden hydrocarbon liquids that comprises contacting the liquid with a sponge nickel metal alloy, removing the sulfur...
6423657 Process for the reactivation of activated carbon  
A process and a set of equipment for reactivating spent activated carbon onto which pollutants were adsorbed. The present process comprises subjecting the activated carbon to be reactivated in a...
6403514 Process for the regeneration of zeolitic catalysts containing titanium  
A process is described for regenerating exhausted zeolitic catalysts containing titanium and deriving from oxidation processes of organic substrates with hydrogen peroxide. Said process consists in...
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...
6362122 Regeneration of spent zeolite compositions  
A process for regenerating spent zeolite composites. The process involves contacting the composite, either as a shaped article or a fine powder, with a caustic solution, e.g., sodium hydroxide at...
6342462 Process for regenerating an adsorbent  
A novel process for the regeneration of a solid adsorbent which is at least partially spent and has a reactive metal (e.g. silver) dispersed thereon is disclosed. The regeneration consists of a...
6331261 Water softener salt formulation  
The monosodium and monopotassium citrates are improved iron-sequestering agents in salt compositions for regenerating spent water softener cation exchange resins. The dry compositions comprise a...
6294703 Process for the manufacture of cycloalkyldimethanol  
A process for making cycloalkyldimethanol, includes hydrogenating at least one cycloalkyldicarboxylic acid and/or an alkyl ester thereof with a catalyst, to produce a cycloalkyldimethanol, where...
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...
6239054 Process for regenerating 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...
6162753 Process for recovering cobalt carbonyl catalysts used to produced N-acyl-alpha-amino acid derivatives by amidocarbonylation  
6100210 Method for regenerating a catalyst with a sulphurus active phase and contaminated by a mercury compound  
The invention features a method for treating a supported catalyst with a sulphur compound based active phase and a mercury compound contaminated mineral support. This method consists in...
6080696 Method for cleaning fouled ion exchange resins  
Methods are disclosed for the regeneration of fouled ion exchange (IX) resins. In one embodiment, the fouled resin is treated simultaneously with reducing agent and acid. In a preferred embodiment,...
6071843 Process for reactivating catalyst systems containing a platinum group metal  
Platinum metal-containing catalyst systems, which comprise at least one platinum metal, a co-catalyst and other salts, and which are used for the production of diaryl carbonates by the oxidative...
6066750 High efficiency epoxidation process  
Propylene is converted to propylene oxide in a highly efficient liquid phase process wherein temperature and pressure are both increased over the course of the epoxidation, which is preferably...
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...
5958990 Trimerization catalysts for making polyisocyanurate foams  
A method for making a rigid polyurethane/polyisocyanurate foam by reacting a polyisocyanate and a polyol in the presence of a trimerization catalyst and a urethane catalyst, a blowing agent and a...
5840643 Recovery of oxidation catalysts used for the production of trimellitic acid  
A method for separating oxidation catalysts used for producing trimellitic acid, which comprises the steps of: adding water to a reactor effluent in a volume ratio of water to the reactor effluent...
5770537 Low-temperature method to regenerate carbon loaded with sulfur compounds  
Disclosed is a low-temperature process for regenerating carbon adsorbents utilized in flue gas desulfurization where carbon loss is minimized. The carbon adsorbent is soaked or washed in a basic...
5756413 Process for recovering cobalt carbonyl catalysts used in the preparation of N-acyl-α-amino acid derivates by amidocarbonylation  
The present invention relates to a process for recovering the cobalt carbonyl catalyst used, in which a water-soluble cobalt salt is first prepared by addition of acid and this is subsequently...
5741748 Catalyst production for use in a process for fluorination of hydrocarbons  
A process for the removal of fluoride from a spent chromium-based fluroination catalyst by contacting the catalyst with potassium hydroxide to produce a suspension of solid hydrated chromium oxide...
5739071 Method and apparatus for regeneratinig and stabilizing dehydrogenation catalysts  
A method and apparatus are disclosed for regenerating and/or stabilizing the activity of a dehydrogenation catalyst used in dehydrogenating an alkylaromatic hydrocarbon to obtain an alkenylaromatic...
5710083 Process to rejuvenate spent zinc oxide sorbents  
A process to rejuvenate a spent sorbent to produce a rejuvenated sorbent is provided. This process comprises: (a) contacting a spent sorbent with a zinc composition that comprises zinc oxide, or a...
5686369 Method and apparatus for treating dehydrogenation catalysts  
A method and apparatus are disclosed for regenerating and/or stabilizing the activity of a dehydrogenation catalyst used in dehydrogenating an alkylaromatic hydrocarbon to obtain an alkenylaromatic...
5674796 Processes of regenerating Ni catalysts and of preparing Ni catalysts  
The present invention relates to processes of regenerating Ni catalysts which had been used in a hydrogenation of unsaturated fatty oil or petroleum resin, which comprise separating the...
5652190 Method for regenerating magnetic polyamine-epichlorohydrin resin  
Magnetic polymer resins capable of efficient removal of actinides and heavy metals from contaminated water are disclosed together with methods for making, using, and regenerating them. The resins...
5608129 Process for the purification of difluoromethane  
To remove the traces of chlorofluoromethane present in a difluoromethane, the difluoromethane to be purified is passed over a 13X molecular sieve at a temperature of at least 60° C.The sieve can ...
5580991 Process for preparing butyrolactone and method for separating organic phosphorous-ruthenium complex as catalyst and reusing the same  
The disclosure describes a method for separating a ruthenium complex, which comprises removing an objective hydrogenation reaction product from a hydrogenation reaction solution of an organic...
Matches 1 - 50 out of 226 1 2 3 4 5 >