Abstract:
Die vorliegende Erfindung betrifft neuartige cyclische Carbaldehyde, deren Herstellung und die Verwendung als Aromachemikalie, insbesondere als Riechstoff, sowie Aromastoffzusammensetzungen und Mittel, enthaltend diese Carbaldehyde.
Abstract:
The present invention relates to a process for recovering 3-methylbut-3-en-1 -ol from a feed stream F1 comprising 3-methylbut-3-en-1 -ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1 -ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1 -ol, in the one or more solvents and in water compared to the feed stream F1 subjec The present invention relates to a process for recovering 3-methylbut-3-en-1 -ol from a feed stream F1 comprising 3-methylbut-3-en-1 -ol, one or more solvents, water, and isobutene, wherein 3-methylbut-3-en-1 -ol, the one or more solvents and water are separated from isobutene by distillation, the process comprising subjecting the feed stream F1 to distillation conditions in a distillation unit, obtaining a bottoms stream B1 which is enriched in -methylbut-3-en-1 - ol, in the one or more solvents and in water compared to the feed stream F1 subjected to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bottoms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3. ted to distillation conditions, and a top stream T1 which is enriched in isobutene, further subjecting the bot- toms stream B1 to distillation conditions in a second distillation unit and obtaining a bottoms stream B2 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B1 and a top stream T2 which is enriched in water compared to the bottoms stream B1, further subjecting the bottoms stream B2 to distillation conditions in a third distillation unit and obtaining a top stream T3 which is enriched in 3-methylbut-3-en-1-ol compared to the bottoms stream B2 and a bottoms stream B3.
Abstract:
Described is a process for producing 1-(4-isobutylphenyl)ethanol by reacting 1-(4-isobutyl- phenyl)ethanone with hydrogen in the presence of a catalyst composition comprising cop- per and one or more metals other than copper, and a use of a respective composition and/or of a pre-composition, the pre-composition comprising a mixture of oxides of copper and oxides of one or more metals other than copper, in a catalytic hydrogenation process for producing 1-(4-isobutylphenyl)ethanol from 1-(4-isobutylphenyl)ethanone.
Abstract:
Die vorliegende Erfindung betrifft neuartige Gemische von Cyclopentadecenon-Isomeren, deren Herstellung und deren Verwendung als Aromastoff, insbesondere als Riechstoff, sowie Aromastoffzusammensetzungen und Mittel, enthaltend diese Gemische.
Abstract:
The present invention relates to a process for preparing an unsaturated alcohol, preferably 3,7- dimethyl-2,6-octadienal, by contacting an alkene, preferably isobutene, with formaldehyde in the presence a condensation catalyst comprising a zeolitic material comprising the framework structure of which comprises a tetravalent element Y other than Si.
Abstract:
Die vorliegende Erfindung betrifft ein neuartiges Verfahren zur Reinigung von Cyclohexadec-8-en-1-οn, ein Verfahren zur Herstellung von Cyclohexadec-8-en-1-on und Cyclopentadecenonen, die damit hergestellten Stoffe und Stoffgemische und deren Verwendung als Aromastoff, insbesondere als Riechstoff, sowie Aromastoffzusammensetzungen und Mittel, enthaltend diese Gemische.
Abstract:
The invention relates to a method of performing a chemical reaction under elevated pressure. It is suggested that the method comprises the steps of pressurizing a first vessel (3) and a second vessel (5) with reactant-containing liquid and gas to a predetermined pressure, providing reaction conditions in one of the vessels (3, 5) such that the chemical reaction is effected and a product-containing liquid is obtained, withdrawing liquid from the respective vessel (3, 5) as reaction product when a predetermined amount of reaction product has formed, preferably after the chemical reaction in the respective vessel (3, 5) has concluded, and synchronously supplying reactant-containing liquid to the respective other vessel (3, 5), wherein the first and second vessels (3, 5) are in fluid communication by way of a gas communication passage (27). The invention also relates to an apparatus and use thereof for performing said chemical reaction.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Verbindungen mit 6-Oxabicyclo[10.3.1]pentadecengerüst, speziell von14-Methyl-16-oxabicyclo[10.3.1]- pentadecenen,und deren Folgeprodukten.
Abstract:
Die vorliegende Erfindung betrifft die Verwendung von Hexadeca-8,15-dienaloder eines Stoffgemisches, welches diese Verbindung enthält, als Aromachemikalie, insbesondere als Riechstoff, oder Formulierungshilfsmittel; sowie Verfahren zu dessen Herstellung, außerdem Aromastoffzusammensetzungen und Mittel, enthaltend Hexadeca-8,15-dienal.
Abstract:
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung von Granulaten enthaltend ein Pestizid, umfassend das Aufsprühen einer Pestizid-haltigen Sprühflüssigkeit im Bereich einer kreisähnlichen Gas-Material-Strömung eines Strahlschichtapparates auf die Partikeloberfläche des Materials, und die Trocknung und Granulierung in der Gasströmung. Des weiteren betrifft die Erfindung ein Granulat enthaltend ein Pestizid, erhältlich nach dem genannten Verfahren, wobei das Granulat eine Rundheit von mindestens 0,85 hat.