| Patent Number |
Title Of Patent |
Date Issued |
| 7205446 |
Conversion of unsaturated chemicals to oligomers |
April 17, 2007 |
| An oligomerization process in which hydrocarbon feedstocks are contacted with a hydrotreating catalyst in the absence of hydrogen and in the liquid phase. The catalyst is a heterogeneous catalyst selected from supported reduced metals, metals oxides, metal sulfides and combinations t |
| 7094389 |
Chabazite-containing molecular sieve, its synthesis and its use in the conversion of oxygenates |
August 22, 2006 |
| A crystalline material substantially free of framework phosphorus and comprising a CHA framework type molecular sieve with stacking faults or at least one intergrown phase of a CHA framework type molecular sieve and an AEI framework type molecular sieve, wherein said material, in its |
| 7067108 |
Chabazite-type molecular sieve, its synthesis and its use in the conversion of oxygenates to ole |
June 27, 2006 |
| The synthesis of a crystalline material, in particular a high silica zeolite, having a chabazite-type framework is aided by the addition to the synthesis mixture of seeds of an AEI framework-type material. The chabazite-type product has a relatively small crystal size and exhibits ac |
| 7008610 |
AEI-Type zeolite, its synthesis and its use in the conversion of oxygenates to olefins |
March 7, 2006 |
| A crystalline material is described that has an AEI framework type, wherein the material, in its calcined, anhydrous form, has a composition involving the molar relationship: (n)X.sub.2O.sub.3:YO.sub.2, wherein X is a trivalent element, Y is a tetravalent element n is from 0 to less |
| 6884916 |
Conversion of unsaturated chemicals to oligomers |
April 26, 2005 |
| An oligomerization process in which hydrocarbon feedstocks are contacted with a hydrotreating catalyst in the absence of hydrogen and in the liquid phase. The catalyst is a heterogeneous catalyst selected from supported reduced metals, metals oxides, metal sulfides and combinations there |
| 6702945 |
Ionic membranes for organic sulfur separation from liquid hydrocarbon solutions |
March 9, 2004 |
| Methods for the separation of sulfur compounds from a hydrocarbon mixture using an ionic membrane are provided. Preferred ionic membranes are Nafion.RTM.-type (polymers of perfluorosulfonic acid) membranes and derivatives thereof. Preferred applications include the removal of sulfur |
| 6649061 |
Membrane process for separating sulfur compounds from FCC light naphtha |
November 18, 2003 |
| A process for the separation of sulfur compounds from a hydrocarbon mixture using a membrane is provided. Preferred hydrocarbon mixtures are oil refining fractions such as light cracked naphtha. Membranes are composed of either ionic or non-ionic materials and preferentially permeate sul |
| 5792721 |
Preparation of phosphomolybdovanadate polyoxoanions |
August 11, 1998 |
| The present invention provides a process for the preparation of acidic aqueous solutions consisting essentially of, phosphomolybdovanadate salts. Certain processes of the present invention dissolve in water an oxide, oxoacid, or mixtures thereof, and at least one oxoanion salt of pho |
| 5695736 |
Tiatanium containing molecular sieve having a zelite beta structure |
December 9, 1997 |
| A crystalline molecular sieve having a framework structure isomorphous with zeolite beta and containing Si and Ti, but essentially no framework Al, usefully catalyzes olefin epoxidation wherein hydrogen peroxide is the oxidant. |
| 5688484 |
Non-hydrothermal method of making a titanium-containing zeolite |
November 18, 1997 |
| A process for producing a titanium-containing zeolite such as TS-1 titanium silicalite is disclosed. A precursor mixture comprising a silica source such as tetraalkylorthosilicate, a titanium source such as titanium alkoxide, a growth medium comprising a nitrogen-containing organic base |
| 5684170 |
Epoxidation process |
November 4, 1997 |
| A crystalline molecular sieve having a framework structure isomorphous with zeolite beta and containing Si and Ti, but essentially no framework Al, usefully catalyzes olefin epoxidation wherein hydrogen peroxide is the oxidant. |
| 5681789 |
Activation of as-synthesized titanium-containing zeolites |
October 28, 1997 |
| An as-synthesized zeolite having titanium substituted in its lattice framework and containing an organic template such as a quaternary ammonium salt may be activated for use as a catalyst by treating said as-synthesized zeolite with ozone. At least partial removal and/or reaction of |
| 5679749 |
Olefin epoxidation using niobium-containing zeolites |
October 21, 1997 |
| Molecular sieve zeolites containing niobium isomorphously substituted in their framework lattice are obtained by hydrothermal crystallization using quaternary ammonium templates. The zeolites are useful catalysts, particularly for the oxidation of hydrocarbons such as olefins. |
| 5663384 |
Asymetric epoxidation using a titanium-containing zeolite and a chiral hydroperoxide |
September 2, 1997 |
| Prochiral ethylenically unsaturated substrates are converted to chiral epoxides by reaction with optically active hydroperoxides in the presence of titanium-containing zeolites such as titanium zeolite beta. The method is particularly suitable for producing epoxides from unsubstituted |
| 5621122 |
Epoxidation process |
April 15, 1997 |
| A crystalline molecular sieve having a framework structure isomorphous with zeolite beta and containing Si and Ti, but essentially no framework Al, usefully catalyzes olefin epoxidation wherein hydrogen peroxide or an organic hydroperoxide is utilized as the oxidizing agent. |
| 5618512 |
Niobium-containing zeolites |
April 8, 1997 |
| Molecular sieve zeolites containing niobium isomorphously substituted in their framework lattice are obtained by hydrothermal crystallization using quaternary ammonium templates. The zeolites are useful catalysts, particularly for the oxidation of hydrocarbons such as olefins. |
| 5557014 |
Catalytic system for olefin oxidation to carbonyl products |
September 17, 1996 |
| The present invention provides aqueous catalyst solutions useful for oxidation of olefins to carbonyl products, comprising a palladium catalyst and a polyoxoacid or polyoxoanion oxidant comprising vanadium. It also provides processes for oxidation of olefins to carbonyl products, com |
| 5554356 |
Method of making essentially silicic zeolite beta |
September 10, 1996 |
| A molecular sieve having a zeolite beta morphology, but essentially free of alumina, is prepared from a silicon oxide source in high yield by a hydrothermal crystallization in the presence of a diquaternary templating agent. The templating agent may be derived from a diamine such as |
| 5527520 |
Method of making a titanium-containing molecular sieve |
June 18, 1996 |
| A crystalline molecular sieve having a framework structure isomorphous with zeolite beta and containing Si and Ti, but essentially no framework Al, usefully catalyzes olefin epoxidation wherein hydrogen peroxide or an organic hydroperoxide is utilized as the oxidizing agent. |
| 5508019 |
Dealumination of aluminosilicates |
April 16, 1996 |
| Crystalline aluminosilicates such as zeolite beta may be readily dealuminated using organic sulfonic acids such as methanesulfonic acid to provide useful catalysts or catalyst precursors. A high degree of aluminum removal with minimal loss of crystallinity is possible even when an or |
| 5506363 |
Catalytic system for olefin oxidation to carbonyl products |
April 9, 1996 |
| The present invention provides aqueous catalyst solutions useful for oxidation of olefins to carbonyl products, comprising a palladium catalyst, a polyoxoacid or polyoxoanion oxidant comprising vanadium, and chloride ions. It also provides processes for oxidation of olefins to carbon |
| 5474754 |
Preparation of an aluminosilicotitanate isomorphous with zeolite beta |
December 12, 1995 |
| Aluminosilicotitanates having a framework structure isomorphous with zeolite beta are prepared by heating a solid amorphous SiO.sub.2 --TiO.sub.2 --Al.sub.2 O.sub.3 cogel which has been impregnated with a quaternary tetraethyl ammonium species. The aluminosilicotitanates, which are u |
| 5453511 |
Bis-piperidinium compounds |
September 26, 1995 |
| A crystalline molecular sieve having a framework structure isomorphous with zeolite beta and containing Si and Ti, but essentially no framework Al, usefully catalyzes olefin epoxidation wherein hydrogen peroxide or an organic hydroperoxide is utilized as the oxidizing agent. |
| 5412122 |
Epoxidation process |
May 2, 1995 |
| Olefins are epoxidized by hydrogen peroxide in the presence of a modified titanium-containing molecular sieve having a framework structure isomorphous with zeolite beta and comprised of Si, Ti, and Al. The molecular sieve is modified by substituting the aluminum-associated cationic s |
| 5374747 |
Epoxidation process and catalyst therefore |
December 20, 1994 |
| A crystalline molecular sieve having a framework structure isomorphous with zeolite beta and containing Si and Ti, but essentially no framework Al, usefully catalyzes olefin epoxidation wherein hydrogen peroxide is the oxidant. |
| 5241118 |
Process for the preparation of trisubstituted ureas by reductive carbonylation |
August 31, 1993 |
| A process for preparing trisubstituted ureas is disclosed. A nitroarene is reacted with carbon monoxide and a secondary amine in the presence of a Group VIII transition metal catalyst and optionally one or more promoters selected from primary amines, halide ion-containing compounds, and |
| 5233095 |
Process for manufacture of resorcinol |
August 3, 1993 |
| A process for the manufacture of resorcinol is described which relies upon the intermediacy of a .alpha.,.beta.-unsaturated ketone which can be reacted with a hydroxy moiety-containing compound to obtain a resorcinol precursor which is subsequently converted to resorcinol. In a specific |
| 5116796 |
Organic solvent soluble oxide supported hydrogenation catalyst precursors |
May 26, 1992 |
| The present invention discloses two polyoxoanion supported metal complexes found to be useful in olefin hydrogenation. The complexes are novel compositions of matter which are soluble in organic solvents. In particular, the compositions of matter comprise A.sub.x [L.sub.n Ir.sup.(I) |
| 5026942 |
Process for selective diisopropylation of naphthyl compounds using shape selective acidic crysta |
June 25, 1991 |
| The selective isopropylation of a naphthyl compound to diisopropylnaphthalene enhanced in the 2,6-diisopropylnaphthalene isomer is obtained in the presence of an acidic crystalline molecular sieve catalyst having twelve membered oxygen rings. The catalyst pore aperture dimension rang |
| 5003122 |
Process for selective diisopropylation of naphthyl compounds using shape selective acidic crysta |
March 26, 1991 |
| The selective isopropylation of a naphthyl compound to diisopropylnaphthalene enhanced in the 2,6-diisopropylnaphthalene isomer is obtained in the presence of an acidic crystalline molecular sieve catalyst having twelve membered oxygen rings. The catalyst pore aperture dimension rang |
| 4861921 |
Process for manufacture of resorcinol |
August 29, 1989 |
| A process for the manufacture of resorcinol is described which relies upon the intermediacy of a .alpha.,.beta.-unsaturated ketone which can be reacted with a hydroxy moiety-containing compound to obtain a resorcinol precursor which is subsequently converted to resorcinol. In a specific |
| 4853357 |
Olefin oxidation catalyst system |
August 1, 1989 |
| The additional of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and |
| 4723041 |
Olefin oxidation catalyst system |
February 2, 1988 |
| The addition of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and |
| 4720474 |
Olefin oxidation catalyst system |
January 19, 1988 |
| The addition of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred modes, heteropolyoxoanions and |
