| Patent application number | Description | Published |
|---|
| 20090163687 | PROCESS FOR PREPARING 3-METHYLBUT-1-ENE - The present invention relates to the preparation of 3-methylbut-1-ene from a hydrocarbon stream I comprising isobutene by feeding a hydrocarbon stream II which comprises at least 70% by mass of isobutene in relation to the olefins present in the hydrocarbon stream and which has been obtained from hydrocarbon stream I or is identical to it to a process step for hydroformylation in which isobutene is hydroformylated in the presence of a rhodium catalyst, hydrogenating the aldehyde obtained from the hydroformylation of isobutene to the corresponding alcohol and preparing 3-methylbut-1-ene by water elimination from the alcohol. | 06-25-2009 |
| 20090301348 | MIXTURE OF DIESTERS OF DIANHYDROHEXITOL DERIVATIVES WITH CARBOXYLIC ACIDS OF THE EMPIRICAL FORMULA C8H17COOH, PROCESS FOR PREPARING THESE DIESTERS, AND USE OF THESE MIXTURES - The present invention relates to a mixture comprising diesters of the formula (I) where R | 12-10-2009 |
| 20100137486 | MIXTURE OF ALICYCLIC POLYCARBOXYLIC ESTERS HAVING HIGH CIS CONTENT - The present invention relates to mixtures of alicyclic polycarboxylic esters with high cis content, to a process for their preparation by ring-hydrogenation of the corresponding aromatic polycarboxylic esters, and also to the use of the mixtures. | 06-03-2010 |
| 20100210880 | MULTISTAGE CONTINUOUS PROCESS FOR THE HYDROFORMYLATION OF HIGHER OLEFINS OR OLEFIN MIXTURES - The invention relates to a process for the continuous preparation of aldehydes and/or alcohols having at least 6 carbon atoms by multistage hydroformylation of olefins or olefin mixtures having at least 5 carbon atoms in the presence of unmodified cobalt complexes, in which at least two reactors are operated at different temperatures in the temperature range from 100 to 220° C. and pressures of from 100 to 400 bar, which is characterized in that
| 08-19-2010 |
| 20100249464 | ONE-STAGE CONTINUOUS PROCESS FOR HYDROFORMYLATING HIGHER OLEFINS OR OLEFIN MIXTURES - The invention relates to a one-stage continuous process for hydroformylating olefins having at least 5 carbon atoms to the corresponding aldehydes and/or alcohols having at least 6 carbon atoms in the presence of unmodified cobalt catalysts in a process in which, in the presence of an aqueous phase and of an organic phase, catalyst formation, catalyst extraction and hydroformylation proceed in the same reactor, which is characterized in that more aqueous cobalt salt solution is fed into the reactor as an aqueous phase with the liquid reaction mixture and is discharged from the reactor with the gas phase, and in that the level of the aqueous bottom phase is kept constant by continuously conducting a portion of the aqueous bottom phase out of the reactor. | 09-30-2010 |
| 20110060169 | HYDROGENATION CATALYST AND PROCESS FOR PREPARING ALCOHOLS BY HYDROGENATION OF CARBONYL COMPOUNDS - The invention relates to a hydrogenation catalyst which comprises a support material and at least one hydrogenation-active metal and in which the support material is based on titanium dioxide, zirconium dioxide, aluminium oxide, silicon oxide or mixed oxides thereof and the hydrogenation-active metal is at least one element from the group consisting of copper, cobalt, nickel, chromium, wherein the support material contains the element barium. | 03-10-2011 |
| 20110130595 | PROCESS FOR PREPARING C5 ALDEHYDE MIXTURES WITH A HIGH N-PENTANAL CONTENT - A process for preparing a C | 06-02-2011 |
| 20120035382 | METHOD FOR SEPARATION AND PARTIAL RETURN OF RHODIUM AND CATALYTICALLY EFFECTIVE COMPLEX COMPOUNDS THEREOF FROM PROCESS STREAMS - The invention relates to a method for separating and partially returning transition metals and/or catalytically effective complex compounds thereof from a reaction mixture by combining one at least one-stage membrane separation and an adsorption, wherein a current comprising a catalyst, comprising a transition metal, is divided over at least one one-stage membrane separation step in a transition metal enriched retentate stream that resupplies the reaction mixture and a transition metal depleted permeate stream and the transition metal depleted permeate stream is further supplied to an adsorption step. The invention further relates to a method for producing tridecanals. | 02-09-2012 |
