Patents Examined by R. H. Liles
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Patent number: 3950430Abstract: A process for preparing compounds of the type of sinensal, which is suitable as a flavor-imparting agent of orange aroma, and novel intermediates including those having the general formula: ##SPC1##Wherein R signifies a CH.sub.2 OH, CHO or COOH group and the broken lines present a double bond emanating from C-atom 4, are disclosed.Type: GrantFiled: January 25, 1974Date of Patent: April 13, 1976Assignee: Givaudan CorporationInventors: Erhard Bertele, Peter Schudel
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Patent number: 3948999Abstract: An unsaturated compound is subjected to a hydroformylation reaction which comprises reacting said unsaturated compound with carbon monoxide and hydrogen in the presence of a catalyst containing a rhenium complex.Type: GrantFiled: August 13, 1973Date of Patent: April 6, 1976Assignee: Universal Oil Products CompanyInventor: Edwin H. Homeier
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Patent number: 3946082Abstract: A process for preparing oxygenated products comprising aldehydes, which have high normal to branched-chain isomer ratios. The process involves using particularly characterized rhodium-containing complex catalysts under a specific combination of carefully controlled reaction conditions. The product aldehydes as made above may be condensed and hydrogenated to form saturated aldehyde dimers thereof.Type: GrantFiled: February 6, 1974Date of Patent: March 23, 1976Assignee: Exxon Research & Engineering Co.Inventor: Gary B. McVicker
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Patent number: 3944623Abstract: Ethylenic carbonyl compounds are obtained by heating an .alpha.-ethylenic tertiary alcohol with oxygen and 0.0001 to 5% by weight, based on the alcohol, of a catalyst comprising a compound of a transition metal of Groups V, VI or VII of the Periodic Table.Type: GrantFiled: December 18, 1970Date of Patent: March 16, 1976Assignee: Rhone-Poulenc S. A.Inventors: Pierre Chabardes, Charles Grard, Charles Schneider
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Patent number: 3941848Abstract: An improvement in the process for the manufacture of predominantly straight-chain aldehydes by hydroformylation of olefinically unsaturated compounds of 2 to 20 carbon atoms with carbon monoxide and hydrogen in which, in a first stage, aqueous cobalt solutions are treated with carbon monoxide and hydrogen at temperatures of 50.degree. to 200.degree.C and pressures of 100 to 400 atmospheres in the presence of active charcoal, zeolites or basic ion exchangers which are charged with cobalt carbonyl, in a second stage cobalt carbonyl-hydride is extracted from the reaction mixtures thus obtained, at temperatures of 20.degree. to 180.degree.Type: GrantFiled: July 24, 1973Date of Patent: March 2, 1976Assignee: Badische Anilin- & Soda-Fabrik AktiengesellschaftInventors: Rudolf Kummer, Hans-Juergen Nienburg, Heinz Hohenschutz, Max Strohmeyer, Theo Teutsch
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Patent number: 3940447Abstract: A new, solid catalyst suitable for the hydroformylation of low molecular weight olefins is disclosed. The catalyst composition is a hydrido-platinum group metal carbonyl-Group VA electron donor ligand complex on a solid, sodium form natural or synthetic crystalline aluminosilicate support.Type: GrantFiled: December 7, 1973Date of Patent: February 24, 1976Assignee: Atlantic Richfield CompanyInventor: Jin Sun Yoo
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Patent number: 3940446Abstract: Dehydrogenating a primary or secondary alcohol to the corresponding aldehyde or ketone in a compound also containing a tertiary alcohol, with survival of said tertiary alcohol, by effecting the dehydrogenation at a temperature of about 200.degree. to about 350.degree.C. in a stirred suspension of dehydrogenation catalyst and high boiling inert liquid.Type: GrantFiled: July 8, 1971Date of Patent: February 24, 1976Assignee: Universal Oil Products CompanyInventor: Samuel Kahn
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Patent number: 3940445Abstract: A process for the production of 2-methyl-4-halobut-2-en-1-als by reacting 2-methylbut-3-en-1-al-2-ol or an acetal or acylate thereof at a temperature of from -10.degree.C to +100.degree.C in the presence of copper or a copper salt with the appropriate hydrogen halides.Type: GrantFiled: October 15, 1970Date of Patent: February 24, 1976Assignee: Badische Anilin- & Soda-Fabrik AktiengesellschaftInventors: Werner Reif, Roman Fischer, Horst Pommer
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Patent number: 3939209Abstract: Acetaldehyde is produced from ethane by contacting ethane in the absence of added chlorine or hydrogen chloride with a molten mixture of the higher and lower valent form of a multivalent metal chloride and the oxychloride of the metal, such as a mixture of cuprous chloride, cupric chloride and copper oxychloride, in the presence of ethylene and ethyl chloride and optionally also vinyl chloride. Acetaldehyde is produced with no net production of ethyl chloride and ethylene, and if vinyl chloride is present, no net production of vinyl chloride.Type: GrantFiled: February 24, 1975Date of Patent: February 17, 1976Assignee: The Lummus CompanyInventors: Morgan C. Sze, Ruey H. Wang
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Patent number: 3939208Abstract: Methacrolein is prepared by the gaseous phase reaction of isobutene and oxygen, in the presence of new solid catalysts consisting of the elements tellurium, cerium, molybdenum, of one or more of the elements lithium, sodium potassium, rubidium, cesium and, in addition, of oxygen.Type: GrantFiled: July 23, 1974Date of Patent: February 17, 1976Assignee: Montedison S.p.A.Inventors: Enrico Cavaterra, Donato Petrera, Francesco Pignataro, Gabriele Colucci
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Patent number: 3937739Abstract: A process for the oxidation of a diethylbenzene feed which comprises passing a molecular oxygen containing gas into contact with said feed at a temperature between 100.degree. and 180.degree.C in the presence of a superbasic sulfonate of an alkaline-earth metal in an amount within the range of 0.01 to 5% by weight of the diethylbenzene feed.Type: GrantFiled: June 19, 1973Date of Patent: February 10, 1976Assignee: Labofina S. A.Inventors: Pierre M. J. G. de Radzitzky d'Ostrowick, Philippe J. A. Camerman
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Patent number: 3935275Abstract: A process for preparing compounds of the type of sinensal, which is suitable as a flavor-imparting agent of orange aroma, and novel intermediates including those having the general formula: ##SPC1##Wherein R signifies a CH.sub.2 OH, CHO or COOH group and the broken lines present a double bond emanating from C-atom 4, are disclosed.Type: GrantFiled: January 25, 1974Date of Patent: January 27, 1976Assignee: Givaudan CorporationInventors: Erhard Bertele, Peter Schudel
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Patent number: 3933751Abstract: Olefinic aldehydes such as acrolein are produced by the oxidation of an olefin such as propylene in the presence of an antimony oxide-uranium oxide catalyst containing at least one of a number of specified promoter elements.Type: GrantFiled: May 7, 1971Date of Patent: January 20, 1976Assignee: The Standard Oil CompanyInventors: James L. Callahan, Robert K. Grasselli, Warren R. Knipple
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Patent number: 3932523Abstract: The formation of an emulsion when working up reaction mixtures containing butyraldehydes and cobalt is avoided by a treatment with gases containing molecular oxygen in an aqueous acid medium at an elevated temperature, at least twice the amount of molecular oxygen stoichiometrically required for the oxidation of the cobalt being used per gram atom of cobalt present in the oxoreaction mixture.Type: GrantFiled: January 20, 1975Date of Patent: January 13, 1976Assignee: BASF AktiengesellschaftInventors: Max Strohmeyer, Helmut Walz, Max Appl, Hans Moell, Horst Kerber, Heinz Hohenschutz
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Patent number: 3932522Abstract: The manufacture of formaldehyde by oxidative dehydrogenation of crude methanol in the presence of a silver catalyst, the crude methanol being caused to impinge against baffle plates before the reaction takes place, the impurities which separate at the baffle plates being collected. The formaldehyde manufactured by the process of the invention is valuable as a disinfectant, tanning agent, reducing agent and intermediate in the manufacture of synthetic resins, adhesives and plastics.Type: GrantFiled: March 22, 1972Date of Patent: January 13, 1976Assignee: Badische Anilin- & Soda-Fabrik AktiengesellschaftInventors: Karl Seither, Guenther Matthias, Hans Diem, Oskar Hussy, Hans Haas
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Patent number: 3931332Abstract: In hydroformylation reactions at temperatures in the range 100.degree.-225.degree.C. the destructive dissociation of cobalt carbonyl complex compounds to cobalt metal and residue is inhibited by the presence of minor amounts of 2,2'-bipyridine, alkyl-substituted 2,2'-bipyridines, N-alkyl-substituted alkylene diamines and mixtures of these compounds.Type: GrantFiled: June 4, 1973Date of Patent: January 6, 1976Assignee: Chevron Research CompanyInventor: John B. Wilkes