| Patent Number |
Title Of Patent |
Date Issued |
| 7615654 |
Direct epoxidation process |
November 10, 2009 |
| A process is disclosed for the epoxidation of an olefin with hydrogen and oxygen in the presence of an oxidation catalyst comprising a transition metal zeolite, and a noble metal catalyst comprising a noble metal and an ion-exchange resin. The process is highly productive and selective i |
| 7612241 |
Hydroformylation process |
November 3, 2009 |
| A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst system comprising a rhodium complex and a substituted or unsubstituted 4,5-bis( |
| 7595410 |
Direct epoxidation process using improved catalyst composition |
September 29, 2009 |
| A process for producing an epoxide comprising reacting an olefin, hydrogen and oxygen in the presence of a catalyst comprising a titanium or vanadium zeolite, palladium, and lead. The process results in significantly reduced alkane by-product formed by the hydrogenation of olefin. |
| 7575604 |
Drycleaning method |
August 18, 2009 |
| A drycleaning method is disclosed. The method uses a composition comprising 30 to 90 wt. % of a dipropylene glycol C.sub.3-C.sub.4 alkyl ether, 5 to 65 wt. % of one or more C.sub.10-C.sub.15 hydrocarbons, and 1 to 10 wt. % of water. The method combines acceptable stain removal with f |
| 7571890 |
Valve construction and method of use |
August 11, 2009 |
| An actuated valve having a rotatable cam that controls an opening and closing disc and stop members for the cam, the cam having a notch that allows the cam to be stopped between fully open and fully closed, and an adjustable member on the stop member that corresponds with the notch that |
| 7563740 |
Direct epoxidation process |
July 21, 2009 |
| A catalyst comprising a transition metal zeolite and a noble metal is disclosed. The catalyst is prepared by an extrusion method using a comb-branched polymer as an extrusion aid. The catalyst is used in a reaction to produce epoxide from an olefin, hydrogen, and oxygen. The comb-bra |
| 7550610 |
Direct epoxidation process |
June 23, 2009 |
| A process is disclosed for reacting an olefin, hydrogen, and oxygen in a slurry comprising a catalyst and a solvent in a reactor. The gas bubbles in the slurry are in a churn-turbulent flow regime. The process gives improved yield and operational and maintenance advantages. |
| 7550065 |
Method for recovering solvents |
June 23, 2009 |
| A method for recovering a solvent from its mixture containing oligomers extracted from grafted polyolefins is disclosed. The method includes distilling the solvent from the mixture in the presence of a naphthalene compound. The method of the invention significantly increases the solvent |
| 7541479 |
Direct epoxidation process |
June 2, 2009 |
| A process is disclosed for reacting an olefin, hydrogen, and oxygen in a slurry comprising a catalyst and a solvent in a reactor having a column and at least one side arm. The column is operated in a churn-turbulent flow regime. The slurry is circulated through the side arm, filtered, an |
| 7531675 |
Direct epoxidation process using improved catalyst composition |
May 12, 2009 |
| Catalysts useful for the direct epoxidation of olefins are disclosed. The catalysts comprise a noble metal, lead, bismuth, and a titanium or vanadium zeolite. The noble metal, lead, and bismuth may be supported on the titanium or vanadium zeolite. The catalyst may also be a mixture c |
| 7528269 |
Process for oxidizing organic compounds |
May 5, 2009 |
| This invention is a process for oxidizing an organic compound with a hydrogen peroxide solution produced by reacting hydrogen and oxygen in the presence of an oxidation catalyst. The hydrogen peroxide is produced by reacting hydrogen and oxygen in a solvent in the presence of a H.sub |
| 7527725 |
Upgrading drip oil |
May 5, 2009 |
| A method is disclosed for upgrading drip oil comprising subjecting the drip oil to multiple distillation steps to form a stream rich in aromatics and a separate stream rich in dicyclopentadiene. |
| 7524988 |
Preparation of acetic acid |
April 28, 2009 |
| A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting an acetic acid stream containing aldehyde impurities with a hydroxyl compound to form corresponding acetals. The acetals are subsequently removed from the acetic acid by, |
| 7501532 |
Process for producing hydrogen peroxide |
March 10, 2009 |
| A process comprising reacting hydrogen and oxygen in the presence of a noble metal, a thiol or thiolate, and a solvent is disclosed. The thiol or thiolate improves the hydrogen peroxide yield. The produced hydrogen peroxide may be used to oxidize organic compounds in the presence of an |
| 7485749 |
Preparation of acetic acid |
February 3, 2009 |
| A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting aldehyde impurities with a hydroxyl compound in a drying distillation column or a combined column to form corresponding acetals. The acetals are subsequently removed as heavy |
| 7482495 |
Process for making alkylene glycol ether compositions useful for metal recovery |
January 27, 2009 |
| A process for making an alkylene glycol ether composition is disclosed. In one aspect, the process comprises reacting propylene glycol methyl ether (PM) with from 1.5 to 3 equivalents of propylene oxide (PO). The resulting alkoxylation mixture is distilled to provide a composition co |
| 7476770 |
Epoxidation catalyst |
January 13, 2009 |
| The invention is a catalyst comprising a titanium or vanadium zeolite, a binder, and zinc oxide, wherein the catalyst is preparing an aqueous mixture of the zeolite, a binder source, and a zinc oxide source, and subjecting the mixture to rapid drying. The catalyst is useful in olefin |
| 7470801 |
Direct epoxidation process using a mixed catalyst system |
December 30, 2008 |
| Catalyst mixtures useful for the direct epoxidation of olefins are disclosed. The catalyst mixture comprises a titanium or vanadium zeolite and a supported catalyst comprising a noble metal, bismuth, and a carrier. The invention includes a process for producing an epoxide comprising |
| 7470800 |
Titanium zeolite catalysts |
December 30, 2008 |
| Catalysts useful for epoxidizing olefins are disclosed. The catalysts comprise a vinylpyridine polymer and a titanium zeolite. Preferably, the vinylpyridine polymer encapsulates the titanium zeolite. The catalysts are easy to prepare and use, they are easy to recover and reuse, and they |
| 7453003 |
Direct epoxidation catalyst and process |
November 18, 2008 |
| A catalyst comprising a transition metal zeolite, a noble metal, and a thiol is disclosed. The catalyst is used in an epoxidation process comprising reacting an olefin, hydrogen, and oxygen. The presence of a thiol in the catalyst reduces the formation of alkanes from the hydrogenati |
| 7439405 |
Purification of propylene glycol monoalkyl ether |
October 21, 2008 |
| The invention is a method of purifying a propylene glycol monoalkyl ether containing carbonyl impurities which comprises contacting the propylene glycol monoalkyl ether stream in the liquid phase with a carbon adsorbent, and recovering a purified propylene glycol monoalkyl ether prod |
| 7432384 |
Direct epoxidation process |
October 7, 2008 |
| A process is disclosed for the epoxidation of an olefin with hydrogen and oxygen in the presence of an oxidation catalyst comprising a transition metal zeolite and a polymer-encapsulated noble metal catalyst. The noble metal catalyst comprises a noble metal and an ion-exchange resin. The |
| 7425652 |
Preparation of alkanolamines |
September 16, 2008 |
| Alkanolamine compositions are disclosed. The composition comprises an alkanolamine and hydroxylamine or hydrazine. Preferred alkanolamine includes diethanolamine, triethanolamine, and mixtures thereof. The composition of the invention has significantly reduced discoloration. |
| 7414164 |
Diisobutylene process |
August 19, 2008 |
| This invention is a process for producing diisobutylene from isobutylene. The process comprises first forming dry sulfonic acid resin by contacting water wet sulfonic acid resin catalyst with a first reaction feed comprising isobutylene under conditions effective to produce tertiary |
| 7399726 |
Process for direct oxidation of propylene to propylene oxide and large particle size titanium si |
July 15, 2008 |
| Large crystals of titanium silicalite or intergrowths of intergrown smaller crystals, having a mean particle size greater than 2 .mu.m, have been found catalytically effective at commercially reasonable rates for the epoxidation of olefins in the presence of hydrogen peroxide. Crystals |
| 7393424 |
Gypsum composition |
July 1, 2008 |
| A gypsum composition comprising water, stucco, clay, an amine compound, a polyoxyalkylene, and a comb-branched copolymer is disclosed. The gypsum composition has improved fluidity. A method for preparing the gypsum composition is also disclosed. The method comprises mixing the components |
| 7390919 |
Methyl acetate purification and carbonylation |
June 24, 2008 |
| Disclosed is a method for removing aldehyde impurities from a methyl acetate supply. The method comprises reacting the methyl acetate supply with a polyol and converting the aldehyde impurities to cyclic acetals. The acetals are subsequently removed from the methyl acetate supply by, |
| 7387981 |
Direct epoxidation catalyst and process |
June 17, 2008 |
| A catalyst comprising a transition metal zeolite and a supported noble metal is disclosed. The mean mass diameter of the catalyst is greater than 0.5 mm. The catalyst is formed from transition metal zeolite particles and the supported noble metal particles each having a mean mass dia |
| 7381675 |
Direct epoxidation catalyst |
June 3, 2008 |
| A catalyst comprising a noble metal supported on a diatomaceous earth and a transition metal zeolite is disclosed. The catalyst is used in an epoxidation process comprising reacting an olefin, hydrogen, and oxygen. The diatomaceous earth is readily available and may be used in a slurry |
| 7365217 |
Oxidation process |
April 29, 2008 |
| A process is disclosed for reacting an olefin, hydrogen, and oxygen in a reactor in the presence of an epoxidation catalyst comprising a transition metal zeolite and a noble metal to produce a product stream comprising an epoxide and an alkane. The alkane is separated and oxidized to |
| 7357909 |
Process for producing hydrogen peroxide |
April 15, 2008 |
| A process for producing hydrogen peroxide from hydrogen and oxygen in the presence of a noble metal and a cationic polymer comprising a halogen-containing anion is disclosed. The cationic polymer improves hydrogen peroxide yield, and it can be easily recycled. |
| 7345197 |
Preparation of acetic acid |
March 18, 2008 |
| A method for removing aldehyde impurities from acetic acid is disclosed. The method comprises extracting the aldehyde impurities from a methyl iodide solution such as the decanter heavy phase with a polyol. After the aldehyde impurities are removed, the methyl iodide heavy phase can be |
| 7314545 |
Desulfurization process |
January 1, 2008 |
| This invention is a method of purifying fuels containing organosulfur impurities. The fuel is oxidized with an organic hydroperoxide in the presence of an oxidation catalyst to form a sulfone product, followed by extraction of the sulfone product by solid-liquid or liquid-liquid extr |
| 7294602 |
Hydroformylation process |
November 13, 2007 |
| A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst system comprising a rhodium complex and a trans-1,2-bis(bis(3,5-di-n-alkylpheny |
| 7288237 |
Epoxidation catalyst |
October 30, 2007 |
| Titanium or vanadium zeolite catalysts are prepared by reacting a titanium or vanadium compound, a silicon source, a templating agent, a hydrocarbon, and a surfactant at a temperature and for a time sufficient to form a molecular sieve. The catalyst is useful in olefin epoxidation wi |
| 7279606 |
Hydroformylation process |
October 9, 2007 |
| A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst system comprising a rhodium complex and a trans-1,2-bis(bis(3,5-di-n-alkylpheny |
| 7279145 |
Multiphase reactor design incorporating filtration system for fixed--bed catalyst |
October 9, 2007 |
| A unique reactor configuration especially suitable for interphase mass transfer and mixing of multiple phases, i.e. gas(es), liquid(s), and solid(s) where reaction is catalyzed by a solid catalyst comprises a draught tube reactor wherein the solid catalyst particles are maintained in |
| 7276464 |
Titanium zeolite catalysts |
October 2, 2007 |
| Catalysts useful for epoxidizing olefins are disclosed. The catalysts comprise a vinylpyridine polymer and a titanium zeolite. Preferably, the vinylpyridine polymer encapsulates the titanium zeolite. The catalysts are easy to prepare and use, they are easy to recover and reuse, and they |
| 7273826 |
Epoxidation catalyst |
September 25, 2007 |
| The invention is a catalyst comprising a titanium or vanadium zeolite, a binder, and zinc oxide, wherein the catalyst is preparing an aqueous mixture of the zeolite, a binder source, and a zinc oxide source, and subjecting the mixture to rapid drying. The catalyst is useful in olefin |
| 7271295 |
Hydroformylation process |
September 18, 2007 |
| A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst system comprising a rhodium complex and a 2,3-O-isopropylidene-2,3-dihydroxy-1, |
| 7271117 |
Epoxidation catalyst |
September 18, 2007 |
| Noble metal-containing titanium or vanadium zeolite catalysts are prepared by adding a noble metal source to a titanium or vanadium zeolite that contains templating agent used in the preparation of the zeolite, and then removing the templating agent to form the noble metal-containing |
| 7270742 |
Organosulfur oxidation process |
September 18, 2007 |
| This invention is a method of purifying fuel streams containing organonitrogen and organosulfur impurities. The fuel stream is first treated to extract organonitrogen impurities so that the nitrogen content of the fuel stream is reduced by at least 50 percent. After separation and re |
| 7261772 |
Gypsum composition |
August 28, 2007 |
| A gypsum composition comprising water, stucco, clay, an amine compound, a polyoxyalkylene, and a comb-branched copolymer is disclosed. The gypsum composition has improved fluidity. A method for preparing the gypsum composition is also disclosed. The method comprises mixing the components |
| 7259280 |
Process for producing alkenyl alcohols |
August 21, 2007 |
| A process for producing an alkenyl alcohol from a diol is disclosed. The process comprises dehydrating a diol in the presence of a catalyst comprising cerium oxide supported on a carrier. The carrier has a surface area in the range of 0.1 to 50 m.sup.2/g. The catalyst is more active |
| 7256149 |
Catalyst regeneration process |
August 14, 2007 |
| Used noble metal-containing titanium zeolite catalysts, that have been employed in the liquid-phase epoxidation of olefins with hydrogen and oxygen in the presence of a buffer, are regenerated by heating the used catalyst at a temperature of at least 250.degree. C. in the presence of a |
| 7238817 |
Direct epoxidation process |
July 3, 2007 |
| A process is disclosed for reacting an olefin, hydrogen, and oxygen in a reactor in the presence of a catalyst comprising a transition metal zeolite and a noble metal to produce a reaction mixture comprising an epoxide and acidic byproducts. A portion of the reaction mixture is conta |
| 7238260 |
Purification of N-(2-hydroxyethyl)-2-pyrrolidone |
July 3, 2007 |
| N-(2-hydroxyethyl)-2-pyrrolidone (HEP) is purified by a distillation sequence in which the purified HEP is recovered as a side stream without being separated as an overhead at any point in the procedure. |
| 7232875 |
Preparation of comb-branched polymers |
June 19, 2007 |
| A comb-branched polymer is disclosed. The polymer comprises recurring units of an unsaturated carboxylic monomer, an oxypropylene-rich poly(oxyethylene-oxypropylene) macromonomer and an oxyethylene-rich poly(oxyethylene-oxypropylene) macromonomer. The comb-branched polymer can be use |
| 7232783 |
Propylene oxide catalyst and use |
June 19, 2007 |
| A process is provided for the production of a noble metal on TS-1 catalyst useful for the production of propylene oxide wherein TS-1 from hydrothermal crystallization has noble metal dispersed thereon, the resulting material is spray dried and template used in the crystallization is |
| 7208625 |
Removing permanganate-reducing impurities from acetic acid |
April 24, 2007 |
| A method for removing permanganate-reducing impurities from an acetic acid product is disclosed. The method comprises contacting an acetic acid product containing permanganate-reducing impurities with peracetic acid and an oxygen-containing gas. The method is particularly suitable for |
