| Patent Number |
Title Of Patent |
Date Issued |
| 4658080 |
Acetylene removal process |
April 14, 1987 |
| A catalyst for removing acetylenic impurities from gaseous organic product streams, comprising at least Fe and Ni, other elements from Groups 8, 1b, 2b, 4b, 6b and 7b of the Periodic Table, an alkaline earth metal and an alkali metal. |
| 4658074 |
Catalytic oxidative dehydrogenation process |
April 14, 1987 |
| Oxidative dehydrogenation of organic compounds in vapor phase with catalysts comprising crystalline compositions of iron, oxygen and at least one other metallic element. Preferred catalysts are ferrites. |
| 4644088 |
Acetylene removal process |
February 17, 1987 |
| A catalyst for removing acetylenic impurities from gaseous organic product streams, comprising at least Fe and Ni, other elements from Groups 8, 1b, 2b, 4b, 6b and 7b of the Periodic Table, an alkaline earth metal and an alkali metal. |
| 4570026 |
Production of isobutene from methyl tertiary butyl ether |
February 11, 1986 |
| MTBE can be dissociated with high selectivity to isobutene and methanol over acid action exchange resin catalysts using very high LHSV, e.g. of 7 to 35 at pressure drops of 0.5 to 50 psig through the fixed bed at reaction pressure of 0.5 to 4 atmospheres and bed temperatures in a fixed |
| 4540839 |
Process for the production of polymer gasoline |
September 10, 1985 |
| Conversions of over 80 mole % of n-butenes to oligomers can be obtained with less than 15 mole % C.sub.12 or higher oligomers by passing a predominantly C.sub.4 stream containing at least 40 mole % n-butenes through an acidic cation exchange resin at LHSV 2 to 5 at temperatures in th |
| 4513159 |
Acetylene removal process |
April 23, 1985 |
| A catalyst for removing acetylenic impurities from gaseous organic product streams, comprising at least Fe and Ni, other elements from Groups 8, 1b, 2b, 4b, 6b and 7b of the Periodic Table, an alkaline earth metal and an alkali metal. |
| 4469911 |
Isobutene removal from C.sub.4 streams |
September 4, 1984 |
| The isobutene in C.sub.4 hydrocarbon streams containing 5 to 60 mole % isobutene and n-butenes may be reduced to a level of 0.2 mole % or less by passing the feed stream at LHSV 0.5 to 12 in liquid phase through a fixed bed cation exchange resin catalyst in a tubular reactor with a water |
| 4463211 |
Process for oligomerization of C.sub.2 to C.sub.10 normal olefins |
July 31, 1984 |
| A process for the oligomerization of normal C.sub.2 -C.sub.10 olefins, for example n-butenes by passing a feed containing said olefins in liquid phase through a fixed bed of acid, cation exchange resin at a temperature in the range of 40.degree. to 185.degree. C. at LHSV of 0.10 to 10 an |
| 4332972 |
Modified zinc ferrite oxidative dehydrogenation catalysts in oxidative dehydrogenation |
June 1, 1982 |
| Improved oxidative dehydrogenation catalysts are prepared by modifying a preformed zinc ferrite oxidative dehydrogenation catalyst with zinc oxide. The resulting catalyst compositions exhibit higher conversions and yields. |
| 4313016 |
Isobutene removal from C4 streams |
January 26, 1982 |
| The isobutene in C.sub.4 hydrocarbon streams containing from 0.5 to 5% isobutene and n-butenes is reduced preferably to a level of 0.2 mole % or less by passing the feed stream at LHSV 2.5 to 12 in liquid phase through a fixed-bed cation exchange resin catalyst in a tubular reactor with |
| 4172854 |
Dehydrogenation process and catalyst |
October 30, 1979 |
| Magnesium chromite dehydrogenation catalysts are improved by incorporation therein up to about 10% of an alkali metal. |
| 4154086 |
Apparatus and method for the discovery of volatile organic compounds in water |
May 15, 1979 |
| An apparatus for discovery of trace amounts of volatile organic compounds, such as C.sub.3 to C.sub.7 hydrocarbons in water comprising a column having a lower zone containing a heating means, a sample water outlet means and a carrier gas inlet means located therein, an intermediate zone |
| 4152358 |
Preparation of hydroperoxides by autoxidation |
May 1, 1979 |
| In autoxidation of tertiary, aryl or cycloalkanes the selectivity for organic hydroperoxides can be substantially increased by using a phosphate compound of Li, Na, Mg, Ca, Sr, Fe, Cu, U or B. For example an autoxidation of isopentane with 0.05 wt. % boron phosphate at 9.9 mole % con |
| 4150064 |
Activating zinc ferrite oxidative dehydrogenation catalysts |
April 17, 1979 |
| Zinc ferrite oxidative dehydrogenation catalyst are activated by the use of only steam. |
| 4150063 |
Purification of unsaturated compounds |
April 17, 1979 |
| Gaseous streams containing unsaturated hydrocarbons and carbonyl compounds are contacted with a catalyst comprising at least one metal of group 8, 1b, 2b, 4b, 6b and at least one element from group 1a and 2a to destroy the carbonyl compounds without substantial loss of unsaturated hy |
| 4149996 |
Dehydrogenation catalyst |
April 17, 1979 |
| Magnesium chromites promoted with aluminum have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The aluminum is either added to the preformed magnesium chromite or is incorporated into the spinel structure of t |
| 4100220 |
Dimerization of isobutene |
July 11, 1978 |
| An improved process for the preparation of isobutene dimer comprising passing isobutene and a controlled amount of t-butanol and/or water (water reacts with isobutene under the conditions of the reaction to form t-butanol) through a fixed bed acidic cation exchange resin, producing o |
| 4098817 |
Oxidation of cycloaliphatic compounds |
July 4, 1978 |
| Cyclic compounds, particularly cycloalkanes and cycloalkenes can be oxidized using known metal oxidation catalysts in an organic ester solvent with considerable advantage over prior art solvents. For example cyclohexane was oxidized with a combination cobalt-manganese catalyst at a c |
| 4087471 |
Fixed bed process for the production of t-butanol |
May 2, 1978 |
| An improved process for the preparation of tertiary butyl alcohol comprising passing isobutene and water in a molar ratio of water to isobutene in the range of 0.06 to 0.24 : 1 or preferably less than 0.2 : 1 through a fixed bed acidic cation exchange resin, producing only a hydrocar |
| 4083887 |
Carbonyl removal from gaseous streams using ZnS |
April 11, 1978 |
| Gaseous streams containing carbonyl compounds have the carbonyl content reduced by contacting the gaseous streams with a catalyst of ZnS. Reactor effluent from an oxidative dehydrogenation reaction to produce butadiene-1,3, is contacted with ZnS to remove carbonyl compounds. |
| 4083884 |
Calcium oxide modified zinc ferrite oxidative dehydrogenation catalysts and use |
April 11, 1978 |
| Improved oxidative dehydrogenation catalysts are prepared by modifying zinc ferrite oxidative dehydrogenation catalysts with calcium oxide. The resulting catalysts exhibit reduced carbonyl compound production when used in oxidative dehydrogenation. |
| 4075256 |
Purification of unsaturated compounds |
February 21, 1978 |
| Gaseous streams containing carbonyl compounds have the carbonyl content reduced by contacting the gaseous streams with a catalyst of calcium aluminate or calcium aluminate and Ca.sub.2 SiO.sub.4. Reactor effluent from an oxidative dehydrogenation reaction to produce butadiene-1,3 is |
| 4067924 |
Dehydrogenation process |
January 10, 1978 |
| Magnesium chromites promoted with aluminum have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The aluminum is either added to the preformed magnesium chromite or is incorporated into the spinel structure of t |
| 4067922 |
Lithium ferrite catalysed oxidative dehydrogenation process |
January 10, 1978 |
| Oxidative dehydrogenation catalysts containing lithium, iron and oxygen, with or without aluminum or chromium, and containing the corresponding ferrite, give superior results and operate at generally lower temperatures than many other ferrite oxidative dehydrogenation catalysts. |
| 4065512 |
Iso-C.sub.4 compound reactions with perfluorosulfonic acid resin catalysts |
December 27, 1977 |
| Perfluorosulfonic acid resin membranes are active catalysts for the hydration and polymerization of isobutene and dehydration of t-butanol. The membranes offer unique advantages for hydration and dehydration since they are semi-permeable to water and impermeable to hydrocarbons. |
| 4061850 |
Emulsion polymerization of chloroprene in the presence of a polysulfide modifier |
December 6, 1977 |
| Chloroprene is polymerized in the presence of compounds of the formula ##STR1## where X, Y and Z are selected from the group consisting of oxygen and sulfur, R.sub.1 is a hydrocarbon radical having from 1 to 8 carbon atoms, R.sub.2 is a hydrocarbon radical having from 1 to 8 carbon a |
| 4058577 |
Modified zinc ferrite oxidative dehydrogenation catalysts |
November 15, 1977 |
| Improved oxidative dehydrogenation catalysts are prepared by modifying a zinc ferrite oxidative dehydrogenation catalyst with manganese oxide. The resulting catalyst compositions exhibit higher conversions and yields. |
| 4056490 |
Dehydrogenation process and catalyst |
November 1, 1977 |
| Magnesium chromite dehydrogenation catalyst are improved by preparation in oxygen deficient or essentially inert calcination atmospheres and in the presense of halogen, either singularly or in combination. |
| 4056487 |
Vanadium phosphorus oxygen oxidation catalysts useful for preparing anhydrides from alkanes |
November 1, 1977 |
| A catalyst complex useful for the partial oxidation of alkanes to the corresponding anhydrides, e. g., converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase, comprising as components vanadium, phosphorus, oxygen, Nb, Cu, Mo, Ni, Co and Cr. Preferred are those comp |
| 4049579 |
Dehydrogenation catalyst |
September 20, 1977 |
| Magnesium chromites promoted with B, Si, Sn, Pb and Se have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The promoter is either added to the preformed magnesium chromite or is incorporated into the spinel |
| 4049574 |
Catalyst and process for preparing maleic anhydride from C.sub.4 hydrocarbons |
September 20, 1977 |
| A catalyst complex useful for converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus, copper, an element selected from the group of Te, Zr, Ni, Ce, W, Pd, Ag, Mn, Cr, Zn, Mo, Re, Sm, La, Hf, Ta, Th, Co, U, and Sn, prefe |
| 4046821 |
Oxychlorination of hydrocarbons in the presence of non-halide copper containing catalysts |
September 6, 1977 |
| Copper chloride has been employed as a reagent for oxychlorination of hydrocarbons. It has now been found that a non-halide copper compound in combination with a rare earth compound is an excellent oxychlorination catalyst, e.g. a CuCO.sub.3 - CeO.sub.2 catalyst calcined at 900.degree. |
| 4045370 |
Catalyst for the depolymerization of lower polymers of isobutene |
August 30, 1977 |
| Oligomers of isobutene are depolymerized at 200.degree. to 580.degree. C in vapor phase by contact with a catalyst consisting essentially of the oxide of Cr, Mo or W on a high surface area silica support. |
| 4044067 |
Purification of unsaturated compounds |
August 23, 1977 |
| Gaseous streams containing carbonyl compounds are reduced in carbonyl compounds by reacting a vapor phase with catalyst comprising as the major cation portion at least two metals of Periodic Table Groups 1b, 2b, 4b, 6b, 7b and 8. Reactor effluent from oxidative dehydrogenation reaction t |
| 4038336 |
Purification of unsaturated compounds |
July 26, 1977 |
| Gaseous streams containing carbonyl compounds are reduced in carbonyl compounds by reacting a vapor phase with catalyst comprising as the major cation portion at least two metals of Periodic Table Groups 1b, 2b, 4b, 6b, 7b and 8. Reactor effluent from oxidative dehydrogenation reaction t |
| 4038215 |
Dehydrogenation catalyst |
July 26, 1977 |
| Magnesium chromites promoted with B, Si, Sn, Pb and Se have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The promoter is either added to the preformed magnesium chromite or is incorporated into the spinel |
| 4036781 |
Dehydrogenation catalyst |
July 19, 1977 |
| Magnesium chromites promoted with B, Si, Sn, Pb and Se have been found to be superior to chromia-alumina type dehydrogenation catalysts, for example, in the dehydrogenation of n-butane. The promoter is either added to the preformed magnesium chromite or is incorporated into the spinel |
| 4034049 |
Mo catalyzed chlorination of dichlorobutenes |
July 5, 1977 |
| Meso-1,2,3,4-tetrachlorobutane is produced in an improved liquid phase chlorination process wherein the trans-1,4-dichlorobutene-2 is contacted with chlorine in the presence of a catalytic amount of molybdenum. |
| 4032583 |
Purification of 1,4-butanediol |
June 28, 1977 |
| An improved process is disclosed for recovering 1,4-butanediol in high purity from a mixture comprising 1,4-butanediol in admixture with minor amounts of certain impurities which comprises diluting the 1,4-butanediol-containing mixture with water to form an aqueous mixture having fro |
| 4032458 |
Production of 1,4-butanediol |
June 28, 1977 |
| An improved process is disclosed wherein 1,4-butanediol is produced from a maleic acid-containing solution in a multistep process comprising esterification of maleic acid at elevated temperature and pressure in the presence of a monohydric alcohol to form dialky esters of maleic acid, |
| 4026920 |
Chromium modified manganese ferrite oxidative dehydrogenation catalysts |
May 31, 1977 |
| The presence of 0.05 to 0.4 atom of chromium per atom of manganese in a manganese ferrite oxidative dehydrogenation catalyst improves the yields from oxidative dehydrogenation reactions employing such catalyst. A chromium modified manganese ferrite catalysts containing from 1 to 20 w |
| 4025461 |
Oxychlorination of hydrocarbons in the presence of non-halide copper containing catalysts |
May 24, 1977 |
| Copperchloride has been employed as a reagent for oxychlorination of hydrocarbons. It has now been found that a non-halide copper compound in combination with a rare earth compound is an excellent oxychlorination catalyst, e.g. a CuCO.sub.3 -- CeO.sub.2 catalyst calcined at 900.degree. |
| 4020120 |
Modified zinc ferrite oxidative dehydrogenation catalysts |
April 26, 1977 |
| Improved oxidative dehydrogenation catalysts are prepared by modifying a zinc ferrite oxidative dehydrogenation catalyst with magnesium oxide. The resulting catalyst compositions exhibit higher conversions and yields. |
| 4018709 |
Catalyst for preparing maleic anhydride from C.sub.4 hydrocarbons |
April 19, 1977 |
| A catalyst complex useful for converting normal C.sub.4 hydrocarbons to maleic anhydride in vapor phase comprising as components vanadium, phosphorus, an element selected from the group of U, W, or a mixture of elements from the group Zn, Cr, U, W, Cd, Ni, B or Si. |
| 4016105 |
Catalyst preparative method |
April 5, 1977 |
| C.sub.4 vanadium - phosphorus oxidation catalysts for producing maleic acid are prepared in an aqueous phosphoric acid solution using a reducing agent comprising an organic acid or aldehyde and a secondary alcohol such as oxalic acid and ethanol in a mole of 1:1 to 3 respectively, in whi |
| 4012335 |
Process for removing intermittent organic compounds from gaseous streams |
March 15, 1977 |
| Intermittent hydrocarbon contaminants, which are volatilized by an air regeneration stream from coked catalyst in cyclic dehydrogenation process, are effectively removed from the gaseous regeneration stream containing them prior to venting it by contacting that portion of the stream |
| 4009126 |
Catalyst for removing acetylenic impurities |
February 22, 1977 |
| A catalyst for removing acetylenic impurities from gaseous organic product streams, comprising at least Fe and Ni, other elements from Groups 8, 1b, 2b, 4b, 6b and 7b of the Periodic Table, an alkaline earth metal and an alkali metal. |
| 4007145 |
Method of polymerizing chloroprene using conjugated long-chain fatty acids as emulsifiers |
February 8, 1977 |
| Long-chain fatty acids having conjugated unsaturation, such as tung acid, when used as emulsifiers in the polymerization of chloroprene, produce polymers having higher tensile strength than produced by similar unconjugated fatty acid emulsifiers. |
| 4006168 |
Catalyst treatment |
February 1, 1977 |
| Molybdenum - vanadium - oxygen oxidation catalyst for producing maleic anhydride from benzene is regenerated and stabilized by the addition of a compound of Mo, Ni, Co, Mn or U, preferably a volatile compound, to the catalyst, after a decline in activity. |
| 4000200 |
Preparation of ketones from olefins |
December 28, 1976 |
| Olefins oxidized with organic hydroperoxides in the presence of water and the appropriate metal catalyst at temperatures in the range of 140.degree. to 250.degree. C. give high yields of the corresponding ketone (based on the hydroperoxide charged.) For example, 2-methyl-2-butene reacted |
