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| Number | Title | Issue Date |
| 4560806 | Process and catalyst useful in the production of glycol aldehyde An improved transition metal-phosphine-amide hydroformylation catalyst is disclosed having a substantially increased solubility in non-polar organic solvents, thereby preventing migration of the catalyst into the glycol aldehyde product during the hydrofo... | 12/24/1985 |
| 4559183 | Preparation of carboxylic acid anhydrides A carboxylic acid anhydride such as acetic anhydride, is prepared from a carboxylate ester or a hydrocarbyl ether in processes comprising the use of a halide, carbon monoxide and a Group VIII noble metal.... | 12/17/1985 |
| 4558026 | Catalyst comprising tellurium chemically bound to aromatic polymer The present invention relates to a novel tellurium catalyst and its preparation, and to a process for preparing oxirane compounds using the novel catalyst. Specifically, the invention relates to a novel catalyst in which tellurium is chemically bound to a... | 12/10/1985 |
| 4551560 | Thermally-induced hydrolysis of acetal A process for the selective, thermally-induced hydrolysis of acetals to the corresponding aldehydes and alcohols is disclosed, involving heating and pressurizing a substantially acid-free acetal containing solution to effect the rapid hydrolysis of the ac... | 11/05/1985 |
| 4547588 | Process for producing methacrylic acid A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, and cesium and/or calcium an... | 10/15/1985 |
| 4540811 | Preparation of carboxylic acid esters A carboxylic acid esters, such as methyl propionate, is prepared by carbonylation of an olefin, such as ethylene, in the presence of an alcohol by the use of a molybdenum-nickel-alkali metal, a tungsten-nickel-alkali metal or a chromium nickel-alkali meta... | 09/10/1985 |
| 4537871 | Carbonylation catalyst A liquid-phase catalyst is represented by the formula X:T:Z:Q, wherein X is molybdenum, tungsten or chromium, T is nickel, X and T being in zero valent form or in the form of a halide, an oxide, a carboxylate of 1 to 20 carbon atoms, a carbonyl or an hydr... | 08/27/1985 |
| 4535188 | Conversion of isobutane to methacrolein Isobutane in a C4 hydrocarbon feed stream is converted to methacrolein in an integrated two-step process. Isobutane is dehydrogenated in a first step to isobutylene, hydrogen, and by-products and the reaction effluent is passed directly into a ... | 08/13/1985 |
| 4532365 | Conversion of alkanes to unsaturated aldehydes Alkanes, particularly propane and isobutane are converted to unsaturated aldehydes, particularly acrolein and methacrolein in an integrated two-step process wherein the alkane is dehydrogenated in a first step to the corresponding olefin, hydrogen, and by... | 07/30/1985 |
| 4524581 | Method for the production of variable amounts of power from syngas A process for the production of variable amounts of electric power from a syngas feedstock is disclosed. The process captures, stores and releases carbon monoxide by forming and dissociating a suitable organic molecule, i.e., an alkyl formate, and thereby... | 06/25/1985 |
| 4523980 | Process for the recovery of high purity squaric acid A process is disclosed for the recovery of high purity squaric acid from squarate containing solids from the electrochemical cyclization of carbon monoxide, involving contacting the squaric acid containing product with a two-phase mixture of strong, nonox... | 06/18/1985 |
| 4519815 | Slug-catching method and apparatus Liquids in natural gas pipelines are separated, accumulated and distributed in a system wherein the pipeline contents are introduced into a vertical separation zone, the separated gaseous components are withdrawn from the upper portion of the separation z... | 05/28/1985 |
| 4517062 | Process for the electrochemical synthesis of ethylene glycol from formaldehyde A process for the formation of glycols, particularly ethylene glycol through the electrochemical coupling of aldehydes such as formaldehyde in neutral or acidic solutions producing high yields and product selectivities is disclosed. The process can also b... | 05/14/1985 |
| 4503247 | Process for producing methacrylic acid A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, cesium and rhenium in predet... | 03/05/1985 |
| 4497967 | Process for the preparation of ethanol from methanol, carbon monoxide _and hydrogen An integrated process for the preparation of ethanol from methanol, carbon monoxide and hydrogen feedstock is disclosed; the process featuring the steps of esterifying methanol and acetic acid to form methyl acetate; carbonylating the methyl acetate to fo... | 02/05/1985 |
| 4496781 | Process for the production of ethylene glycol through the hydroformylation of glycol aldehyde A process for the preparation and purification of a glycol aldehyde intermediate which is later hydrogenated to ethylene glycol is disclosed. The process proceeds via the catalytic reaction of formaldehyde, carbon monoxide and hydrogen and utilizes a nove... | 01/29/1985 |
| 4483996 | Process for production of olefin oxides and ketones A process for converting a desired olefin to the corresponding olefin oxide, such as propylene oxide, and/or ketone comprising reacting a mixture of the olefin, thallic oxide, carbon dioxide and water in a substantially organic solvent-free reaction zone;... | 11/20/1984 |
| 4483994 | Process for the production of alkylene carbonates and oxides A process for the production of alkylene carbonates, such as propylene carbonate, is disclosed. The process involves reacting the desired olefin with a thallic oxide or a weak acid thallic salt with carbon dioxide in an aqueous, organic solvent containing... | 11/20/1984 |
| 4483804 | Preparation of carboxylic acid anhydrides A carboxylic acid anhydride, such as acetic anhydride, is prepared from a carboxylate ester or a hydrocarbyl ether in carbonylation processes comprising the use of an iodide or bromide carbon monoxide and a molybdenum-nickel-alkali metal or a tungsten-nic... | 11/20/1984 |
| 4483803 | Preparation of carboxylic acid anhydrides A carboxylic acid anhydride, such as propionic anhydride, is prepared from an olefin and a carboxylic acid in carbonylation processes comprising the use of a halide, carbon monoxide and a molybdenum-nickel-alkali metal, a tungsten-nickel-alkali metal or a... | 11/20/1984 |
| 4482497 | Preparation of carboxylic acids A carboxylic acid, such as acetic acid, is prepared by carbonylation of a hydrocarbyl alcohol, such as methanol by the use of a molybdenum-nickel-alkali metal or a tungsten-nickel-alkali metal co-catalyst in the presence of an iodide or bromide.... | 11/13/1984 |
| 4480113 | Epoxidation catalyst and process The present invention relates to a novel tellurium catalyst and its preparation, and to a process for preparing oxirane compounds using the novel catalyst. Specifically, the invention relates to a novel catalyst in which tellurium is chemically bound to a... | 10/30/1984 |
| 4462978 | Preparation of hydrogen peroxide Hydrogen peroxide is produced in a reaction between carbon monoxide, oxygen, and water in the presence of a solvent using a Group 8 noble metal as a catalyst. Especially preferred as the working solution is palladium chloride in acetone.... | 07/31/1984 |
| 4461681 | Process for the preparation of squaric acid by the electrolysis of carbon monoxide in anhydrous aliphatic nitrile solvent media An improved process for the preparation of squaric acid, its complexes and/or salts, by means of a process for the electrolytic cathodic reductive tetramerization of carbon monoxide, involving the usage of an anhydrous aliphatic nitrile solvent containing... | 07/24/1984 |
| 4454346 | Process for producing methacrylic acid A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, and cesium in predetermined ... | 06/12/1984 |
| 4437939 | Process for separating ethylene oxide from aqueous solutions Ethylene oxide is extracted from aqueous solutions by carbon dioxide under (near) super-critical conditions and thereafter recovered by distillation at sub-critical conditions. Improved distillation is obtained by adding to the carbon dixoide a gas (or ga... | 03/20/1984 |
| 4437938 | Process for recovering ethylene oxide from aqueous solutions Ethylene oxide is recovered from aqueous solutions by extracting with carbon dioxide in the near-critical or super-critical state, thereby selectively removing the ethylene oxide from water, and thereafter recovering ethylene oxide from the carbon dioxide... | 03/20/1984 |
| 4434240 | Recovery of noble metal values from carbonylation residues Heavy residues produced by noble metal catalyzed carbonylation reactions and containing Group VIII noble metals, particularly rhodium, are treated with reagents to precipitate solids containing substantially all of the noble metal contained in the residue... | 02/28/1984 |
| 4413147 | Conversion of isobutane to methacrolein Isobutane is converted to methacrolein in an integrated two-step process wherein isobutane is dehydrogenated in a first step to isobutylene, hydrogen, and by-products and the reaction effluent is passed directly into a second step where isobutylene is oxi... | 11/01/1983 |
| 4407726 | Preparation of carboxylic acids A carboxylic acid, such as propionic acid, is prepared by carbonylation of an olefin, such as ethylene in the presence of water by the use of a molybdenum-nickel or tungsten-nickel co-catalyst in the presence of a promoter comprising an organo-phosphorus ... | 10/04/1983 |
| 4404399 | Coproduction of aniline and diphenylamine A process for the coproduction of aniline and diphenylamine from phenol and ammonia is shown. An aniline reaction mixture containing ammonia and phenol is at least partially reacted to form aniline and that reaction mixture is distilled to separate a port... | 09/13/1983 |
| 4400559 | Process for preparing ethylene glycol Ethylene glycol is prepared by a process in which ethylene oxide is extracted from an aqueous solution with near-critical or super-critical carbon dioxide. Thereafter an ethylene oxide--carbon dioxide--water mixture is contacted with a catalyst to form et... | 08/23/1983 |
| 4400364 | Process for oxidizing carbon monoxide in the presence of methacrolein In a process for oxidation of methacrolein to methacrylic acid the carbon monoxide present in the recycle gas can be selectively oxidized to carbon dioxide with substantially no oxidation of the methacrolein content. A preferred catalyst for such an oxida... | 08/23/1983 |
| 4391612 | Gasification of coal A gaseous effluent rich in hydrogen and carbon monoxide is produced from coal by a process which involves the gasification of the coal in a fluidized gasification zone interconnected with a combustor zone comprising a combustion unit and an entrained flow... | 07/05/1983 |
| 4377501 | Catalyst and process for producing methacrylic acid A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, cesium and rhenium in predet... | 03/22/1983 |
| 4374757 | Catalyst and process for producing methacrylic acid A catalyst composition useful for the oxidation of unsaturated aldehydes, particularly the oxidation of methacrolein to produce methacrylic acid, comprises the combination of oxides of molybdenum, copper, phosphorus, antimony, and cesium in predetermined ... | 02/22/1983 |
| 4374759 | Catalysts and process for unsaturated aldehydes A catalyst composition useful for the oxidation of olefins, particularly the vapor phase oxidation of isobutylene and/or tertiary butyl alcohol to produce methacrolein, consists essentially of the combination of oxides of molybdenum, cobalt, iron, bismuth... | 02/22/1983 |
| 4372889 | Preparation of carboxylic acids A carboxylic acid, such as propionic acid, is prepared by carbonylation of an olefin, such as ethylene in the presence of water by the use of a molybdenum-nickel or tungsten-nickel cocatalyst in the presence of a promoter comprising an organophosphorus co... | 02/08/1983 |
| 4362883 | Preparation of dibenzofuran Dibenzofuran is prepared by reacting diphenyl ether in an oxygen-containing atmosphere in the presence of a palladium carboxylate catalyst, a carboxlyic acid and a copper carboxylate promoter or co-catalyst.... | 12/07/1982 |
| 4359811 | Method of coating or lining metals Coating or lining normally-corrodible tubular metal shapes with corrosion-resistant metal coatings or linings is effected by placing the tubular metal shape in concentric telescopic relationship with a tubular shape of the corrosion-resistant metal to pro... | 11/23/1982 |
