| Patent Number |
Title Of Patent |
Date Issued |
| 5529763 |
CO adsorbents with hysteresis |
June 25, 1996 |
| The Present Invention is directed to a composition, its synthesis and a process for adsorptive separation of carbon monoxide from gas mixtures using adsorbents, which comprise cuprous compounds on amorphous oxide macroporous supports. The compositions are prepared by impregnating cupric |
| 5419891 |
Zinc cation exchanged lithium X-zeolite for nitrogen adsorption |
May 30, 1995 |
| The present invention is directed to an at least binary exchanged X-zeolite having lithium and zinc cations in a ratio of preferably 5% to 40% zinc and 50% to 95% lithium, wherein the sum of the lithium and zinc ion exchange is at least 65% of the exchangeable ion content. Theses ads |
| 5417957 |
Divalent cation exchanged lithium X-zeolite for nitrogen adsorption |
May 23, 1995 |
| The present invention is directed to an at least binary exchanged X-zeolite having lithium and a divalent cation selected from the group consisting of cobalt, copper, chromium, iron, manganese, nickel and mixtures thereof in a ratio of preferably 5% to 50% of the divalent cation and 50% |
| 5258571 |
Separations using highly dispersed cuprous compositions |
November 2, 1993 |
| The present invention is directed to a process for adsorptive separation of carbon monoxide or olefins from gas mixtures using adsorbents, which comprise cuprous compounds dispersed on amorphous oxide or carbon macroporous supports. The compositions are prepared by impregnating cupric |
| 5258058 |
Nitrogen adsorption with a divalent cation exchanged lithium X-zeolite |
November 2, 1993 |
| The present invention is directed to a process for separating nitrogen from gas mixtures containing nitrogen and less strongly adsorbed components such as oxygen, hydrogen, argon or helium by use of an at least binary exchanged X-zeolite having lithium and a divalent cation selected from |
| 5175137 |
Highly dispersed cuprous compositions |
December 29, 1992 |
| The present invention is directed to a process for adsorptive separation of carbon monoxide or olefins from gas mixtures using adsorbents, which comprise cuprous compounds dispersed on amorphous oxide or carbon macroporous supports. The compositions are prepared by impregnating cupric |
| 5152813 |
Nitrogen adsorption with a Ca and/or Sr exchanged lithium X-zeolite |
October 6, 1992 |
| The present invention is directed to a process for separating nitrogen from gas mixtures containing nitrogen and less strongly adsorbed components such as oxygen, hydrogen, argon or helium by use of an at least binary exchanged X-zeolite having lithium and calcium and/or strontium ions i |
| 5144074 |
Process for the synthesis of carboxamides |
September 1, 1992 |
| Carboxamides having the structural formula:wherein:R.sup.1 is H, C.sub.1 -C.sub.6 alkyl or aryl;R.sup.2 is H, C.sub.1 -C.sub.6 alkyl;R.sup.3 is benzyl, C.sub.1 -C.sub.8 alkyl or hydroxyalkyl; andR.sup.4 is H, C.sub.1 -C.sub.6 alkyl or aryl;are synthesized by reacting an aldehyde having the structura |
| 5136094 |
Process for the synthesis of secondary formamides |
August 4, 1992 |
| Secondary formamides having the structural formula:whereinR.sup.1 is H, C.sub.1 -C.sub.6 alkyl or aryl;R.sup.2 is H, or C.sub.1 -C.sub.6 alkyl; andR.sup.3 is benzyl, C.sub.1 -C.sub.8 alkyl or hydroxyalkyl;are synthesized by reacting an acetal having the structural formula: R.sup.1 CHR.sup.2 CH(O |
| 4996322 |
Separation of amides with molecular sieves |
February 26, 1991 |
| Amides having different molecular kinetic diameters or heats of adsorption, such as formamide and N-(1-alkoxyethyl)formamide, are separated under mild conditions with a molecular sieve which selectively adsorbs one of the amides, such as formamide. N-vinylformamide can be purified by rem |
| 4968841 |
Synthesis of ethylidene bisformamide from vinyl acetate |
November 6, 1990 |
| Ethylidene bisformamide is produced in high selectivity by the reaction of formamide with vinyl acetate in a molar ratio of at least 1:1 at a temperature from about 60.degree. to 150.degree. C. in the presence of a catalyst comprising an acid salt of mercury of which the parent acid has |
| 4950690 |
Process for the animation of alcohols using activated phosphorus-containing catalysts |
August 21, 1990 |
| The present invention is a process for selectively aminating alcohols wherein a mixture of an amine and a primary or secondary alcohol or diol is contacted with a catalytically effective amount of a phosphorus-containing catalyst which has been impregnated or titrated with a metal ca |
| 4900832 |
Process for the catalytic animation of alcohols and diols using non-acidic hydroxyapatite cataly |
February 13, 1990 |
| The present invention relates to a process for the catalytic amination of 1.degree. and 2.degree. alcohols and diols wherein an amine is reacted with an alcohol or diol in the presence of a non-acidic cationic hydroxyapatite catalyst. A typical reaction includes the amination of etha |
| 4869929 |
Process for preparing sic protective films on metallic or metal impregnated substrates |
September 26, 1989 |
| Silicon carbide protective films are produced on the surface of metallic or metal-impregnated substrates. A silicide or silicon diffusion coating is initially formed on the surface of the substrate, and subsequently said surface is treated with a gas stream which is reducing to the coati |
| 4851579 |
Alkylation of aromatic amines over Al exchanged zeolites |
July 25, 1989 |
| This present invention is a process for alkylating aromatic amines to form ortho-alkylated products in high selectivity relative to N-alkylated products. Aromatic amines are contacted with an olefin or an alcohol in the presence of an ion exchanged zeolite in which at least a portion of |
| 4822642 |
Method of producing silicon diffusion coatings on metal articles |
April 18, 1989 |
| A silicon diffusion coating is formed in the surface of a metal article by exposing the metal article to a reducing atmosphere followed by treatment in an atmosphere of 1 ppm to 100% by volume silane, balance hydrogen or hydrogen inert gas mixture. Hydrogen with a controlled dew point is |
| 4801751 |
Process for the disproportionation of alkylated aromatic primary amines |
January 31, 1989 |
| Alkylated aromatic primary amines undergo disproportionation and transalkylation in the presence of a carbon-containing catalyst at a temperature between 200.degree. C. and 500.degree. C. The carbon-containing catalyst may have carbon as the only active component, or optionally, may |
| 4760184 |
Alkylation of aromatic amines in the presence of non-zeolitic molecular sieves |
July 26, 1988 |
| This invention relates to a process for producing ring alkylated aromatic amines. In accordance with this process an aromatic amine is reacted with an olefin, diolefin or an alcohol using a non-zeolitic molecular sieve as a catalyst. Under the conditions of the process the catalyst is ex |
| 4714632 |
Method of producing silicon diffusion coatings on metal articles |
December 22, 1987 |
| A silicon diffusion coating is formed in the surface of a metal article by exposing the metal article to a reducing atmosphere followed by treatment in an atmosphere of 1 ppm to 100% by volume silane, balance hydrogen or hydrogen inert gas mixture. Hydrogen with a controlled dew point is |
| 4681867 |
Supported fischer-tropsch catalyst and method of making the catalyst |
July 21, 1987 |
| A Fischer-Tropsch catalyst and a method of making the catalyst for a Fischer-Tropsch process utilizing the catalyst by which synthesis gas, particularly carbon-monoxide rich synthesis gas, is selectively converted to higher hydrocarbons of relatively narrow carbon number range is dis |
| 4670472 |
Fischer-Tropsch process |
June 2, 1987 |
| A Fischer-Tropsch process utilizing a product selective and stable catalyst by which synthesis gas, particularly carbon-monoxide rich synthesis gas is selectively converted to higher hydrocarbons of relatively narrow carbon number range is disclosed. In general, the selective and notably |
| 4652587 |
F-T process using an iron on mixed zirconia-titania supported catalyst |
March 24, 1987 |
| A Fischer-Tropsch catalyst comprising iron co-deposited with or deposited on particles comprising a mixture of zirconia and titania, preferably formed by co-precipitation of compounds convertible to zirconia and titania, such as zirconium and titanium alkoxide. The invention also com |
| 4624942 |
Iron on mixed zirconia-titania substrate Fischer-Tropsch catalyst and method of making same |
November 25, 1986 |
| A Fischer-Tropsch catalyst comprising iron co-deposited with or deposited on particles comprising a mixture of zirconia and titania, preferably formed by co-precipitation of compounds convertible to zirconia and titania, such as zirconium and titanium alkoxide. The invention also com |
| 4619910 |
Catalyst for selective conversion of synthesis gas and method of making the catalyst |
October 28, 1986 |
| A Fischer-Tropsch (F-T) catalyst, a method of making the catalyst and an F-T process utilizing the catalyst by which synthesis gas, particularly carbon-monoxide rich synthesis gas is selectively converted to higher hydrocarbons of relatively narrow carbon number range. In general, the |
| 4605639 |
Methods for making a supported iron-copper catalyst |
August 12, 1986 |
| A catalyst is described for the synthesis of hydrocarbons from CO+H.sub.2 utilizing a porous Al.sub.2 O.sub.3 support impregnated with iron and copper and optionally promoted with an alkali metal. The use of an Al.sub.2 O.sub.3 support results in the suppression of heavy waxes (C.sub |
| 4521540 |
Process for producing dimethyl ether form synthesis gas |
June 4, 1985 |
| This invention pertains to a Fischer Tropsch process for converting synthesis gas to an oxygenated hydrocarbon with particular emphasis on dimethyl ether. Synthesis gas comprising carbon monoxide and hydrogen are converted to dimethyl ether by carrying out the reaction in the presence |
| 4510267 |
Preparation of olefins from synthesis gas using ruthenium supported on ceric oxide |
April 9, 1985 |
| A catalyst comprising a ruthenium carbonyl compound deposited on a cerium oxide-containing support material provides for the selective synthesis of low molecular weight olefinic hydrocarbons from mixtures of hydrogen and carbon monoxide. |
| 4508846 |
Ruthenium carbonyl catalyst supported on ceric oxide for preparation of olefins from synthesis g |
April 2, 1985 |
| A catalyst comprising a ruthenium carbonyl compound deposited on a cerium oxide-containing support material provides for the selective synthesis of low molecular weight olefinic hydrocarbons from mixtures of hydrogen and carbon monoxide. |
