Patent application number | Description | Published |
20120088935 | PROCESS FOR PREPARING KETONES, IN PARTICULAR MACROCYCLIC KETONES - Ketones of the formula II | 04-12-2012 |
20120101306 | PROCESS FOR THE PREPARATION OF 1-METHYLCYCLOPENTANE DERIVATIVES - Process for the preparation of 1-methylcyclopentene by thermal reaction of cyclohexanol or cyclohexene or mixtures of both compounds to give 1-methylcyclopentene, wherein the resulting by-products 3-methylcyclopentene and 4-methylcyclopentene (double-bond isomers of 1-methylcyclopentene) are returned to the reaction. | 04-26-2012 |
20120101307 | PROCESS FOR THE PREPARATION OF 1-METHYL-1-ALKOXYCYCLOPENTANES - Process for the preparation of cyclopentane derivatives of the formula I | 04-26-2012 |
20120108780 | METHOD FOR PRODUCING POLYOLS ON THE BASIS OF RENEWABLE RESOURCES - A method for producing a polyol, the method including: | 05-03-2012 |
20120123136 | PROCESS FOR THE PREPARATION OF 2-OXO-[1,3] DIOXOLANE-4-CARBOXYLIC ACID ESTERS - A process for the preparation of 2-oxo-[1,3] dioxolane-4-carboxylic acid esters of formula I | 05-17-2012 |
20120142950 | PROCESS FOR THE PRODUCTION OF PROPYLENE OXIDE - A continuous process for the production of propylene oxide comprising reacting propene with hydrogen peroxide in methanolic solution in the presence of a titanium silicalite-1 catalyst to obtain propylene oxide, wherein a reaction feed comprising propene, methanol and hydrogen peroxide is introduced into a reactor, said reaction feed containing potassium cations and phosphorus in the form of anions of at least one phosphorus oxyacid. | 06-07-2012 |
20120157719 | TUBE BUNDLE REACTOR FOR UNCATALYZED OR HOMOGENEOUSLY CATALYZED REACTIONS - The invention relates to a tube bundle reactor with a flat feed hood. Alternatively, the release hood may also have a flat design. The flat design reduces the heat of reaction which arises in the hood in the case of reaction types which take place not only in the tube bundle (uncatalyzed reactions and reactions with homogeneously distributed catalyst). This greatly suppresses undesired reactions which already take place in the hood owing to accumulated heat, which achieves a higher selectivity in the case of thermally sensitive reactions. In addition, the thermal distribution within the hoods can be controlled precisely. | 06-21-2012 |
20120165588 | USE OF SUPPORTED RUTHENIUM-CARBENE COMPLEXES IN CONTINUOUSLY OPERATED REACTORS - The present invention relates to a process for carrying out a chemical reaction in the presence of a ruthenium-carbene complex supported on silicon dioxide in a continuously operated reactor and also the use of corresponding supported catalysts in continuously operated reactors. | 06-28-2012 |
20120203013 | PROCESS FOR THE OXIDATION OF MESITOL - The invention relates to a process for the oxidation of mesitol with singlet oxygen, which is released from hydrogen peroxide, this release taking place in the presence of a bismuth compound as catalyst. In the process, 2,4,6-trimethylquinol is formed in high yield and selectivity as product, which can be used in further reactions for the synthesis of vitamins and in particular of vitamin A and vitamin E. | 08-09-2012 |
20130006021 | METHOD FOR ISOMERIZING OLEFINICALLY UNSATURATED ALCOHOLS - A process for isomerizing olefinically unsaturated alcohols over supported noble metal catalysts with a support based on carbon in an oxygenous atmosphere. | 01-03-2013 |
20130018205 | PROCESS FOR PREPARING CYCLOHEPTENE - The present invention provides a process for preparing cycloheptene and derivatives thereof by ring-closing metathesis of unsymmetric 1,8-dienes whose C—C double bond at the 8 position is nonterminal. Cycloheptene and the cycloheptanone, cycloheptylamine, cycloheptanecarbaldehyde, cycloheptanecarboxylic acid and cycloheptanecarbonyl chloride conversion products thereof, and the derivatives thereof, are important synthesis units for active ingredient compounds. The ring-closing metathesis is preferably performed as a reactive distillation. The unsymmetric 1,8-dienes for the ring-closing metathesis can be obtained by catalytic decarbonylation or oxidative decarboxylation from the corresponding unsaturated carboxylic acids or carboxylic acid derivatives. | 01-17-2013 |
20130190532 | PROCESS FOR PREPARING FORMIC ACID - Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid, tertiary amine (I) and water is produced by combining tertiary amine (I) and a formic acid source in the presence of water, water and organic decomposition products of the tertiary amine (I) are removed and formic acid is removed by distillation from the resulting liquid stream in a distillation apparatus, wherein the stream comprising water and organic decomposition products of the tertiary amine (I) which have been separated off is separated into two liquid phases, the upper liquid phase is removed and the lower, water-comprising liquid phase is recirculated to the formic acid source. | 07-25-2013 |
20130197246 | PROCESS FOR PREPARING EPOXYCARBOXYLIC ESTERS - Process for preparing epoxides of the formula I | 08-01-2013 |
20130204018 | MICROPOWDER AND MOLDING CONTAINING A ZEOLITIC MATERIAL CONTAINING TI AND ZN - The present invention relates to a micropowder, wherein the particles of the micropowder have a Dv10 value of at least 2 micrometer and the micropowder comprises mesopores which have an average pore diameter in the range of from 2 to 50 nm and comprise, based on the weight of the micropowder, at least 95 weight-% of a microporous aluminum-free zeolitic material of structure type MWW containing titanium and zinc. | 08-08-2013 |
20130338402 | PROCESS FOR PREPARING MACROCYCLIC KETONES - The present invention relates to a process for preparing cyclic compounds having at least eight carbon atoms and at least one keto group, to the cyclic compounds obtained by this process and to the use thereof, in particular as fragrance or for providing a fragrance. | 12-19-2013 |
20140018456 | PROCESS FOR PREPARING FORMIC ACID - Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid and tertiary amine (I) is produced by combining tertiary amine (I) and a formic acid source, secondary components comprised therein are separated off, formic acid is removed by distillation from the resulting liquid stream in a distillation apparatus, where the bottom output from the distillation apparatus is separated into two liquid phases, and the upper liquid phase is recirculated to the formic acid source and the lower liquid phase is recirculated to the separation of the secondary components and/or to the distillation apparatus, wherein low boilers are removed by distillation from the upper liquid phase and recirculated to the depleted stream. | 01-16-2014 |
20140128622 | Process for the Oxidation of Organic Carbonyl Compounds - A process for the oxidation of an organic carbonyl compound comprising reacting the organic carbonyl compound, optionally in the presence of a solvent, with hydrogen peroxide in the presence of a catalyst comprising a tin-containing zeolitic material having an MWW-type framework structure. | 05-08-2014 |
20140148614 | PROCESS FOR PREPARING METHYL FORMATE BY REACTION OF METHANOL WITH CARBON MONOXIDE IN THE PRESENCE OF A CATALYST SYSTEM COMPRISING ALKALI METAL FORMATE AND ALKALI METAL ALKOXIDE - Process for preparing methyl formate by carbonylation of methanol by means of carbon monoxide in a carbonylation reactor in the presence of a catalyst system comprising alkali metal formate and alkali metal alkoxide to give a reaction mixture (R | 05-29-2014 |
20140148617 | PROCESS FOR PREPARING FORMIC ACID - Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which, in step (a), a liquid stream comprising formic acid, methanol, water and tertiary amine (I) is produced by combining methyl formate, water and tertiary amine (I), from there in step (b), methanol is separated off and in step (c), formic acid is removed by distillation from the liquid stream obtained in a distillation apparatus, wherein, when methyl formate, water and tertiary amine (I) are combined, methyl formate, water and optionally tertiary amine (I) are first introduced in step (a1) in a molar ratio of 0≦n(amine to a1)/n(mefo to a1)≦0.1, and from 70 to 100% of the hydrolysis equilibrium possible is set and then, in step (a2), tertiary amine (I) is introduced in a molar ratio of 0.1≦n(amine to a2)/n(mefo to a1)≦2, and the mixture is reacted. | 05-29-2014 |
20140163243 | Tin-Containing Zeolitic Material Having an MWW-Type Framework Structure - A tin containing zeolitic material having an MWW-type framework structure (Sn-MWW), having a tin content of at most 2 weight-%, calculated as element and based on the weight of the Sn-MWW, and having an X-ray diffraction pattern comprising peaks at 2 theta diffraction angles of (6.6±0.1)°, (7.1±0.1)°, and (7.9±0.1)°. | 06-12-2014 |
20140171667 | MICROPOWDER AND MOLDING CONTAINING A ZEOLITIC MATERIAL CONTAINING TI AND ZN - The present invention relates to a micropowder, wherein the particles of the micropowder have a Dv10 value of at least 2 micrometer and the micropowder comprises mesopores which have an average pore diameter in the range of from 2 to 50 nm and comprise, based on the weight of the micropowder, at least 95 weight-% of a microporous aluminum-free zeolitic material of structure type MWW containing titanium and zinc. | 06-19-2014 |