Patent application number | Description | Published |
20080216390 | Biodiesel Fuel Mixture Containing Polyoxymethylene Dialkyl Ether - A biodiesel fuel mixture having a cetane number of >40, comprising
| 09-11-2008 |
20080221366 | Method for the Hydrogenation of Mass Fluxes Containing Aldehyde - The present application relates to a process for reacting a composition I comprising at least one aldehyde with hydrogen in the presence of a catalyst in at least one main reactor and at least one postreactor, wherein at least 50% of the fresh hydrogen fed to the reaction system is fed into at least one postreactor. In a preferred embodiment, composition I comprises at least one further organic compound. | 09-11-2008 |
20080296145 | Method for Improving the Color Number - The present invention relates to a process for purifying a composition (I) at least comprising cyclododecanone. The process according to the invention for purifying a composition (I) at least comprising cyclododecanone comprises at least step (i)
| 12-04-2008 |
20100191018 | PROCESS FOR PREPARING PURE CYCLODODECANONE - The present invention relates to a process for preparing at least one cyclic compound with Z cycles and 7 to 16 carbon atoms with a keto group, at least comprising the stages:
| 07-29-2010 |
20100240913 | PROCESS FOR PREPARING EPSILON-CAPROLACTONE - The present invention provides a process for preparing ε-caprolactone in a purity of more than 99% by cyclizing 6-hydroxycaproic esters in the liquid phase at from 150 to 400° C. and from 1 to 1020 hPa abs., and removing and condensing the compounds which are volatile under cyclization conditions, which comprises thermally treating the remaining bottom product of the cyclization in at least one further reactor, removing and condensing volatile compounds and obtaining ε-caprolactone by distillation from the condensates. | 09-23-2010 |
20110015429 | PROCESS FOR PREPARING 6-HYDROXYCAPROIC ESTERS - The present application relates to an improved process for preparing 6-hydroxycaproic esters from the by-product mixtures which are obtained in the oxidation of cyclohexane to cyclohexanol and cyclohexanone with oxygen or oxygen-comprising gas mixtures. | 01-20-2011 |
20110040030 | USE OF A CYCLOHEXANE DIOL MIXTURE FOR MANUFACTURING POLYMERS - A polymer obtainable by polycondensation or polyaddition from monomeric compounds, wherein one monomeric compound used is a mixture of hydroxymethylcyclohexanepropanol or its alkoxylated derivatives and hydroxymethylcyclohexaneisopropanol or its alkoxylated derivatives (referred to below for short as C1/C3 cyclohexanediol mixture). | 02-17-2011 |
20110124809 | USE OF 2-ISOPROPYL-2-ALKYL-1,3-PROPANEDIOLS FOR PREPARING POLYMERS - Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of | 05-26-2011 |
20110130514 | USE OF A C11 DIOL OR C11 DIOL MIXTURE FOR PRODUCING POLYMERS - A polymer obtainable by polycondensation or polyaddition of monomeric compounds, wherefor accompanying use is made as monomeric compound of | 06-02-2011 |
20110144259 | USE OF 1,1-DIMETHYLOL CYCLOALKANES OR 1,1-DIMETHYLOL CYCLOALKENES FOR THE PRODUCTION OF POLYMERS - Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of 1,1-dimethylolcycloalkanes of the formula I or 1,1-dimethylolcycloalkenes of the formula Ia | 06-16-2011 |
20110178239 | USE OF SUBSTITUTED 2-ARYL-2-ALKYL-1,3-PROPANEDIOLS OR SUBSTITUTED 2-CYCLOHEXYL-2-ALKYL-1,3-PROPANEDIOLS FOR MANUFACTURING POLYMERS - Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of | 07-21-2011 |
20110263907 | PROCESS FOR PREPARING 1,6-HEXANEDIOL - A process for preparing 1,6-hexanediol from a carboxylic acid mixture which comprises adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols and is obtained as a by-product of the oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases by water extraction of the reaction mixture, by esterification and hydrogenation to hexanediol, which comprises
| 10-27-2011 |
20120010419 | METHOD FOR PRODUCING 1,6-HEXANEDIOL AND CAPROLACTONE - The invention relates to a process for preparing 1,6-hexanediol and caprolactone, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol and cyclizing 6-hydroxycaproic ester, the 1,4-cyclohexanediols being removed either in the course of fractionation of the esterification mixture or last from the caprolactone. | 01-12-2012 |
20120022298 | METHOD FOR PRODUCING 1,6-HEXANEDIOL - The invention relates to a process for preparing 1,6-hexanediol, preferably with at least 99.5% purity, which are especially virtually free of 1,4-cyclohexanediols, from a carboxylic acid mixture which is obtained as a by-product of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by hydrogenating the carboxylic acid mixture, esterifying and hydrogenating a substream to hexanediol. | 01-26-2012 |
20120035399 | METHOD FOR PRODUCING 1,6-HEXANEDIOL BY HYDROGENATION OF OLIGO- AND POLYESTERS - The present invention relates to a process for hydrogenating oligo- and/or polyesters obtainable by esterifying a DCS with a diol or diol mixture, said hydrogenation being performed in the presence of a catalyst whose catalyst precursor comprises copper oxide, aluminum oxide and at least one oxide of lanthanum, of iron, of tungsten, of molybdenum, of titanium or of zirconium, and to a process for preparing 1,6-hexanediol by catalytically hydrogenating ester mixtures which comprise, as main components, oligo- and polyesters of adipic acid and 6-hydroxycaproic acid, and are obtained by esterifying DCS with diols, especially 1,6-hexanediol or diol mixtures. | 02-09-2012 |
20120108779 | METHOD FOR PRODUCING POLYOLS ON THE BASIS OF RENEWABLE RESOURCES - The invention provides a method for producing polyols, comprising the steps of
| 05-03-2012 |
20120108780 | METHOD FOR PRODUCING POLYOLS ON THE BASIS OF RENEWABLE RESOURCES - A method for producing a polyol, the method including: | 05-03-2012 |
20120245394 | METHOD FOR PRODUCING A SUPPORTED HYDROGENATION CATALYST HAVING INCREASED HYDROGENATION ACTIVITY - In a process for preparing a supported hydrogenation catalyst with increased hydrogenation activity, which comprises a hydrogenating metal and/or an oxide of a hydrogenating metal on an Al | 09-27-2012 |
20130253132 | USE OF 2-ISOPROPYL-2-ALKYL-1,3-PROPANEDIOLS FOR PREPARING POLYMERS - Polymer obtainable by polycondensation or polyadduct formation from monomeric compounds, wherein accompanying use is made as monomeric compound of 2-isopropyl-2-alkyl-1,3-propanediols of the formula I | 09-26-2013 |