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7851406 Nano-sized palladium-doped cation exchange resin catalyst, preparation method thereof and method of removing dissolved oxygen in water using the same  
Disclosed are a nano-sized palladium-doped anion exchange resin catalyst or palladium-doped cation exchange resin catalyst, a preparation method thereof and a method of removing dissolved oxygen in...
7828978 Simultaneous synthesis and purification of a fatty acid monoester biodiesel fuel  
Simultaneous synthesis and purification of a fatty acid monoester biodiesel fuel from a triacylglycerol feedstock is described. In an exemplary method, the triacylglycerol feedstock is continuously...
7767179 Method for producing adsorbent, adsorbent, and adsorption apparatus  
A method for producing an adsorbent which is stable toward a liquid such as an eluant and which shows excellent reproducibility in selectively adsorbing and separating an object compound, the...
7393466 Compositions and methods for anion absorbent metal hydroxides  
A metal hydroxide complex has a formula Me(OH)4*A−*nH2O or MeO2*A−*nH2O. Preferred complexes are formed in an alkaline medium, and particularly especially preferred anions include cyanide and cya...
7329624 Regenerable adsorbents for the purification of silicone based solvents  
An adsorbent for removal of impurities from silicone based solvents is presented. The adsorbent is regenerable for repeated use in cleaning silicone based solvents.
7098327 Dual-functional ion exchange resins from agricultural by-products  
A process for the production of dual-functional ion exchange resins from lignocellulosic agricultural material involving anionization of the lignocellulosic agricultural material with citric acid...
7001523 Ion exchange  
An ion exchange material comprising a superabsorbent polyurethane foam having an ion exchange medium contained therein. The ion exchange may be used in a process for the extraction of metal anions...
6897272 α-olefins and olefin polymers and processes therefor  
Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The...
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...
6657036 Polycondensation resins and polyaddition resins produced by heterogeneous catalysis  
The invention relates to polycondensation resins which are prepared by polycondensation of compounds having a low molecular weight and separation of small molecules in the presence of at least one...
6218327 Mixed cation adsorbent having substantially uniform cation distribution  
An improved process for production of mixed cation-exchanged adsorbents that involves a single pass ion exchange. The precursor (non-exchanged) zeolite is treated with a combined essentially...
6124508 Quaternary phosphonium salt catalysts in catalytic hydrolysis of alkylene oxides  
A process for the preparation of alkylene glycols by reacting an alkylene oxide with water in the presence of at least one ionic composition of a quaternary phosphonium cation of the general...
5958817 Adsorbent production with single pass ion exchange  
An improved process for production of mixed cation-exchanged adsorbents that involves a single pass ion exchange. The precursor (non-exchanged) zeolite is treated with a combined essentially...
5948265 Ion-exchanger, process for production thereof, and process for removal of multiply charged anions employing the ion-exchanger  
An ion-exchanger is provided which comprises zirconium hydroxide supported on active carbon. The process for producing the ion-exchanger, and a process for removing a multiply charged anion are...
5780384 Hydrated manganese dioxide oxidation catalysts and process of producing same  
The present invention generally relates to supported mono charged cation delta manganese dioxide hydrate having a noble metal on the surface thereof, and to the use thereof for low temperature...
5502016 Method to treat an ion-exchanger catalyst for the process of bisphenol-A synthesis  
In the process of bisphenol-A systhesis a method for controlling the water content of the resultant cation-exchanger bed wherein an acid ion-exchanger resin in the form of a sulphonated...
5468536 Sorbent articles  
A microfibrous sorbent article is provided. The microfibrous sorbent article comprises an elongate boom having a substantially oval cross-section. The boom is formed of multiple adjacent...
5461022 Thin film hydrous metal oxide catalysts  
Thin film (<100 nm) hydrous metal oxide catalysts are prepared by 1) synthesis of a hydrous metal oxide, 2) deposition of the hydrous metal oxide upon an inert support surface, 3) ion exchange with...
5382558 Heat resistant layered porous silica and process for producing the same  
A heat resistant layered porous silica having a honeycomb porous structure comprises a plurality of waved or bent sheet layers of crystalline layered silicate superposed one after another, and the...
5175064 Fuel cells based on oxidation of organics over metal exchanged β-aluminas  
Novel fuel cells based on the fast ion conductors, transition metal exchanged β"-alumina and other similar metals capable of undergoing a change in oxidation state, which are used as catalysts for ...
5139981 Process for preparing silver(I)-exchanged resins  
This invention relates to a method for removing halides from liquid carboxylic acid contaminated with a halide impurity by contacting the liquid halide-contaminated acid with a silver(I)-exchanged...
5051202 Process for bleaching and increasing the ion-exchange capability of sepiolite  
The present invention refers to a process for bleaching and increasing the ion-exchange capability of the sepiolite mineral, basically consisting of treating, at high pH and temperature, the...
4956154 Selective removal of chromium, nickel, cobalt, copper and lead cations from aqueous effluent solutions  
Aqueous effluent solutions containing metal cations may be treated with an extractant comprising an organophosphinic acid, a di-2-ethylhexyl phosphoric acid and/or an aliphatic amine to selectively...
4929582 Hydrous oxide ion-exchange compound catalysts  
A catalytic material of improved activity which comprises a hydrous, alkali metal or alkaline earth metal or quaternary ammonium titanate, zirconate, niobate, or tantalate, in which the metal or...
4795824 Process for the production of dialkyl maleates  
A process is described for the production of a dialkyl maleate by reaction of maleic anhydride with an alkyl alcohol in a monoesterification zone to form the corresponding monoalkyl maleate,...
4780239 Ion exchange resin for immobilizing radioactive waste  
Disclosed is a method of making an ion exchange material. A ceramic material is ion implanted with sulfur, carbon, phosphorus, or nitrogen, which is oxidized to sulfate, carboxylate or carbonate,...
4695556 Catalyst resins and process for their preparation  
The invention relates to a new process for the preparation of strongly acid cation exchangers loaded with catalytically active metals by loading the cation exchangers with a solution of a salt of...
4661465 Method for preparing transition metal component of Ziegler-Natta catalysts  
A method for preparing Ziegler catalysts is disclosed wherein a mixture (A) containing the product resulting from mixing in an inert hydrocarbon diluent (1) a hydrocarbon soluble magnesium alkyl...
4629710 Resin catalysts and method of preparation  
Heat stabilized catalyst compositions are prepared from nuclear sulfonic acid, for example, macroporous crosslinked polyvinyl aromatic compounds containing sulfonic acid groups are neutralized with...
4542002 Silicates with high ion exchange capacity derived from sepiolite and processes for their production  
Silicate having high ion exchange capacity are obtained by reacting sepiolites with a base, preferably a strong base in the presence of a polar liquid at a temperature, preferably elevated, and for...
4540509 Crystalline 3-layer lithium aluminates  
Ion exchange resins in the base form, e.g., DOWEX MWA--1--OH ion exchange resin, which contain crystalline Al(OH)3, e.g., gibbsite, and/or bayerite, and/or norstrandite, are treated with hot,...
4523027 Purification of carboxylates containing aldehydes, acetals and/or unsaturated compounds  
Carboxylates which contain aldehydes, acetals and/or unsaturated compounds and are obtained by reacting an olefinically unsaturated compound with carbon monoxide and an alkanol are purified by a...
4466906 Catalyst for the oxidation of mercaptans to disulfides, process for the preparation thereof, and its use in the sweetening of petroleum distillates  
A catalyst suited for use in the sweetening of petroleum distillates (by oxidizing mercaptans to disulfides) which is formed of a metal complex of a polyaminoalkylpolycarboxylic acid deposited...
4461714 Method of making crystalline 2-layer lithium aluminates in ion exchange resins  
The bayerite form of crystalline alumina, Al(OH)3, contained within a macroporous ion exchange resin is converted to the gibbsite form of Al(OH)3 by reaction with hot MgX2, where X is halide,...
4343717 Process for the preparation of stable silica sol  
Stable, colloidal, silica sol is provided by a process which comprises vigorously mixing a slurry of calcium silicate with a dilute acid having a pKa value of less than about 8, such as sulfuric...
4299735 Heavy metal-manganese oxidation catalysts and process of producing same  
Alkali metal delta manganese dioxide hydrate, which is obtained as a by-product in the industrial oxidation of organics by KMnO4 is subjected to ion exchange reaction with heavy metal ions (copper,...
4292205 Ion exchange and impregnation of catalysts  
An improved process for impregnation or ion exchange of catalysts or catalyst supports utilizing ebullated bed techniques.
4278820 Process for preparing monoalkylene glycol monoethers  
A monoalkylene glycol monoether is produced with good efficiency and commercial advantage by reacting an alkylene oxide with an alcohol in the presence of a solid catalyst resulting from the...
4136062 Highly active Pd-Au catalyst  
A highly active catalyst for oxidative dehydrogenation reactions made up of Pd-Au alloy particles containing about 40 to 80 aromatic percent Au and ranging from 15 to 40 A in size, said particles...
4125483 Dimerization process catalyst  
An improved catalyst for the dimerization of butadiene to 4-vinylcyclohexene comprises a cation-exchangeable alumino silicate having incorporated in the lattice thereof by the exchange Cu(I) ions...
4094698 Dye or color developing inorganic pigments  
An oxidizing clay for pressure sensitive record materials is provided by treating an acid leached clay with cupric salts.
4078991 Treatment of clay materials to form super-active catalyst  
This invention relates to an improved method for treating clay materials to prepare a super-active catalyst for use in catalytic conversion of organic materials such as, for example, hydrocarbon...
4028133 Reduced charge montmorillonite pigment for sensitizing record material  
A reduced charge montmorillonite pigment useful as a color-former in record material, especially pressure-sensitive carbonless copying record systems. The pigment is produced by replacing...
3974099 High activity amorphous silica-alumina catalyst  
An amorphous hydrocarbon cracking catalyst of high activity is prepared by mixing solutions of sodium silicate and sodium aluminate, allowing the gel and age, acidulating said gel to precipitate...
3953517 Process for preparing methyl isobutyl ketone and catalyst  
Methyl isobutyl ketone is produced in a one-step process by contacting acetone and hydrogen at a temperature of from about 50°-200°C and a pressure between 50-100 atm, preferably 60-100 atm, in t...
3855342 ISOPARAFFIN-OLEFIN ALKYLATION WITH A COMPLEX OF A MACRORETICULAR ACID CATION EXCHANGE RESIN AND BF  
This invention relates to a process for effecting alkylation of an isoparaffin with an olefin in the presence of a catalyst comprising a macroreticular acid cation exchange resin characterized by a...
3676369 MANGANESE SILICATE-CONTAINING MINERALS IN THE FORM OF NODULES AND THEIR USE IN HYDROCARBON CONVERSION  
A catalyst comprising a base-exchanged, calcined manganese silicate-containing mineral in the form of a manganese nodule, said mineral having hydrogen ions bonded thereto in an amount of at least...
3673114 DISPROPORTIONATION CATALYSTS  
A catalyst for the disproportionation of olefins is prepared by (i) adsorbing aluminum ions into silica (ii) adsorbing sodium ions and (iii) adsorbing ions of one or more of the metals rhenium,...
3509041 MANGANESE SILICATE-CONTAINING MINERALS AND THEIR USE IN HYDROCARBON CONVERSIONS  
3489692 PREPARATION OF CATALYSTS  
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