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| Number | Title | Issue Date |
| 7531697 | Process for the preparation of aromatic aldehydes (Hetero)aromatic are prepared from halogen-substituted (hetero)aromatic compounds in the presence of a base and a palladium catalyst having a nonpyrophoric monodentate phosphane ligand. The phosphane ligand structure includes two radical groups having a tertiary car... | 05/12/2009 |
| 7232931 | Method for the rhodium-catalyzed hydroformylation of olefins with reduction of rhodium losses Process for preparing aldehydes and alcohols by rhodium-catalyzed hydroformylation of olefins having 6–20 carbon atoms with subsequent separation by distillation of the output from the hydroformylation reaction into the hydroformylation products and a rhodium-cont... | 06/19/2007 |
| 7196230 | Phosoxophite ligands and use thereof in carbonylation processes A novel organophosphorus composition and synthesis thereof, the composition being characterized by one phosphite moiety, one phosoxophite moiety, and a plurality of sterically bulky substituents. The novel composition finds utility as a ligand in Group VIII transiti... | 03/27/2007 |
| 7164045 | Electroluminescent iridium compounds with phosphinoalkoxides and phenylpyridines or phenylpyrimidines and devices made with such compounds The present invention is generally directed to electroluminescent Ir(III) compounds with phosphinoalkoxides and phenylpyridines or phenylpyrimidines, and devices that are made with the Ir(III) compounds. ... | 01/16/2007 |
| 7161043 | Process for the carbonylation of ethylenically unsaturated compounds and bidentate diphosphine composition used in this process Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst system includes (a) a source of Pt group metal cations,... | 01/09/2007 |
| 7154012 | Process for preparing alcohols from olefins by hydroformylation and hydrogenation A process for preparing aliphatic alcohols that includes cobalt-catalyzed hydroformylation of olefins, treatment of a hydroformylation mixture with oxygen-containing gases in the presence of acidic, aqueous cobalt(II) salt solutions, separation of a mixture into an ... | 12/26/2006 |
| 7135542 | Bidentate ligands for the carbonylation of unsaturated compounds Bidentate ligand of formula (I), R1R2M1-R-M2R3R4 wherein M1 and M2 each indenpendently represent P, As or Sb; R1, R2, R3 and R4 each i... | 11/14/2006 |
| 7087795 | Method for the production of aldehydes The invention relates to a hydroformylation method, whereby the homogeneous liquid reactor discharge is first supplied to a gas/liquid separator and then run through an extraction column with a counter-current of synthesis gas and finally fed to an evaporator. The i... | 08/08/2006 |
| 7084089 | Process for the carbonylation of ethylenically unsaturated compounds, bidentate diphosphine composition used in this process and a process for preparation of this bidentate diphosphine composition Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst system includes (a) a source of Pt group metal cations,... | 08/01/2006 |
| 7081553 | Cobalt flash process The Cobalt Flash Process is modified by replacing formic acid with acetic acid as process acid. Efficiency using acetic acid as process acid is achieved by two improvements which may be added separately and independently: (1) separation of acetic acid and water from... | 07/25/2006 |
| 7081554 | Oxo process The Oxo Process that recycles its cobalt primarily as cobalt salt is improved by concentration of the cobalt salt solution from the demetalling section and the addition of a separation step for organic acid and water. This allows for a higher reuse of acid in the pr... | 07/25/2006 |
| 7015360 | Asymmetric catalysts prepared from optically active bisphosphites bridged by achiral diols This invention relates to asymmetric hydroformylation (hf) processes in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active aldehyde or product derived from an opticall... | 03/21/2006 |
| 7002044 | Catalysis by water-soluble organometallic complexes in water-in-densified fluid microemulsions A microemulsion containing water, a densified fluid, a surfactant, and an organometallic catalyst is used to catalyze chemical reactions. The organometallic catalyst preferably has substantial solubility in the water phase of the microemulsion. Separation of reactio... | 02/21/2006 |
| 6995293 | Method for the production of aldehydes The present invention relates to a hydroformylation method by conversion of olefins or olefinically unsaturated compounds in the presence of at least one rhodium compound and in the presence of sulfonated arylphosphines in ionic liquids, which are based on a quatern... | 02/07/2006 |
| 6995292 | Process for reducing fluoride impurities resulting from use of fluorophosphite catalysts Described is a process for reducing the fluoride content of products prepared in a process utilizing a fluorophosphite-containing transition metal complex catalyst, involving contacting the products with an adsorbent. ... | 02/07/2006 |
| 6960695 | Hydroformylation process A hydroformylation process comprising reacting a compound having at least one olefinic carbon-to-carbon bond with hydrogen and carbon monoxide in the presence of a cobalt catalyst, the hydroformylation process being carried out in one or more reactors, at least one ... | 11/01/2005 |
| 6939515 | Apparatuses and methods for creating and testing pre-formulations and systems for same The invention provides methods, apparatus, and systems for performing high-throughput preparation and screening of salts and polymorphs of drug candidates. The invention is directed towards enhancing the pre-formulation discovery process used for drug development. I... | 09/06/2005 |
| 6852661 | Catalyst comprising a metal complex of the VIII subgroup based on a phosphine amidite ligand and its utilization for hydroformylation and hydrocyanation A catalyst comprising at least one complex of a metal of transition group VIII comprising at least one monodentate, bidentate or multidentate phosphinamidite ligand in which the phosphorus atom and the oxygen atom of the phosphinamidite group form part of a 5- to 8-... | 02/08/2005 |
| 6846960 | Process for reducing fluoride impurities resulting from use of fluorophosphite catalysts Disclosed is a process for reducing fluoride content in a process utilizing a fluorophosphite-containing transition metal catalyst. ... | 01/25/2005 |
| 6806391 | Process for the carbonylation of ethylenically unsaturated compounds and bidentate diphosphine composition used in this process Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst system includes (a) a source of Pt gro... | 10/19/2004 |
| 6777579 | Hydroformylation process A hydroformylation process is provided that involves reacting a compound having at least one olefinic carbon-to-carbon bond with hydrogen and carbon monoxide in the presence of a cobalt catalyst and a sulfur-containing additive which suppresses the formation of coba... | 08/17/2004 |
| 6720457 | Process for the hydroformylation of higher olefins using cobalt compounds as catalyst Olefins having from 5 to 24, in particular from 5 to 12, carbon atoms are hydroformylated by reacting an olefin or a mixture of olefins in the presence of an unmodified cobalt catalyst in a single-stage process in a reactor at a temperature of from 100° C. to 220°... | 04/13/2004 |
| 6700021 | Preparation of aldehydes The present invention relates to a process for preparing aldehydes by reaction of olefinically unsaturated compounds with carbon monoxide and hydrogen, wherein, during the process, rhodium is added in the form of a reaction product from the reaction of me... | 03/02/2004 |
| 6680414 | Process for the hydrogenation of hydroformylation mixtures The present invention provides a process, which includes: in a homogeneous liquid phase including water, and over a fixed-bed catalyst, continuously hydrogenating at least one hydroformylation product obtained from a hydroformylation of one or more C | 01/20/2004 |
| 6660889 | Method of manufacturing oxygenated fuel A Fischer-Tropsch reaction is conducted using a synthesis gas (mixture of carbon monoxide and hydrogen) as a raw material to synthesize hydrocarbons containing a large amount of olefin. These hydrocarbons are separated into a light fraction and a heavy fr... | 12/09/2003 |
| 6579997 | Metallacrown ether catalysts for hydroformylation A metallacrown ether ligand chelates a transition metal atom to form a catalyst well suited to perform hydroformylation in the presence of carbon monoxide, hydrogen and an unsaturated substrate compound.... | 06/17/2003 |
| 6559344 | Hydroformylation In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex or compound of a metal of transition group VIII with at least one bidentate phosphine ligand is used as hydroformylation catalyst and at least one of the re... | 05/06/2003 |
| 6492525 | Organometallic complexes comprising cationic heterocyclic carbenes The invention concerns novel organometallic complexes comprising cationic heterocyclic carbenes. It also concerns a method for preparing said complexes from dicationic heterocyclic precursor compounds. It further concerns the use as catalysts of said orga... | 12/10/2002 |
| 6403836 | Process for the hydroformylation of olefins by reducing the formic acid concentration The present invention is a process for preparing C4-25 aldehydes by hydroformylating the corresponding C3-24 olefins in the presence of a cobalt hydroformylation catalyst, and catalytically decomposing the formic acid formed in the h... | 06/11/2002 |
| 6388141 | Hydroformylation with unmodified rhodium catalysts in supercritical carbon dioxide The present invention relates to processes for the preparation of oxo products by the hydroformylation of substrates having C.dbd.C double bonds using unmodified rhodium catalysts in a reaction mixture essentially consisting of the substrates, the catalys... | 05/14/2002 |
| 6369257 | Hydroformylation of olefins using supported bis(phosphorus) ligands Supported bis(phosphorus) ligands are disclosed for use in hydroformylation reactions, including the hydroformylation of olefins. Catalysts are formed when the ligands are complexed with a catalytically active metal (e.g., rhodium or iridium).... | 04/09/2002 |
| 6362305 | Method for producing formaldehyde from methanol In a process for preparing formaldehyde from methanol by dehydrogenation in a reactor in the presence of a catalyst at a temperature in the range from 300 to 1000° C., a circulating gas stream comprising by-products of the dehydrogenation is passed throu... | 03/26/2002 |
| 6229052 | Hydroformylation of olefins using supported bis(phosphorus) ligands Supported bis(phosphorus) ligands are disclosed for use in hydroformylation reactions, including the hydroformylation of olefins. Catalysts are formed when the ligands are complexed with a catalytically active metal (e.g., rhodium or iridium).... | 05/08/2001 |
| 5910600 | Bisphosphite compound, process for its production and hydroformylation process employing the bisphosphite compound A bisphosphite compound of the following formula (A): ##STR1## wherein --Ar--Ar-- is a bisarylene group represented by any one of the formulae (A-I) to (A-III) defined in the specification, and each of Z1 to Z4 is a C4-20 | 06/08/1999 |
| 5817850 | Ferrocene bis(phosphonite) ligands and complexes for transition-metal-catalyzed reactions The synthesis of new sterically hindered ferrocene bis(phosphonites) of formula I ##STR1## the synthesis of the corresponding transition-metal complexes and the use of these complexes in transition-metal-catalyzed reactions are described.... | 10/06/1998 |
| 5498801 | Process for the catalytic hydroformylation of alkenes A process is effected using water soluble metal complex catalysts in the presence of a promoter in the organic (water immiscible) phase. The process results in the enhancement of the rate of hydroformylation by interfacial catalysis induced by the presenc... | 03/12/1996 |
| 5488175 | Hydroformylation process A process for the hydroformylation of unsaturated compounds containing a group C.dbd.C.dbd.C--OH, in the presence of a catalyst system containing rhodium and a ligand of the formula R1 R2 P--R--NR3 R4 wherein R | 01/30/1996 |
| 5488174 | Hydroformylation process Process for the hydroformylation of ethylenically unsaturated compounds, by reaction with carbon monoxide and hydrogen in the presence of a catalyst based on a metal of the platinum group, a source of anions and a bidentate ligand of the formula R1 | 01/30/1996 |
| 5481044 | Process for the preparation of -alkyl substituted aldehydes -alkyl aldehydes having 8 to 17 carbon atoms are obtained from terminal olefins containing one less carbon atom. The olefins are first isomerized in the presence of iron carbonyl and then, without separating out the iron compound, hydroformylated i... | 01/02/1996 |
| 5475146 | Enantioselective hydroformylation Enantioselective hydroformylation of vinyl compounds using a catalyst composition of a chiral carbohydrate phosphorous ligand with a Rh, Pt, Co or Ir metal, to produce chiral 2-substituted propanals, wherein the phosphorous of the ligand is substituted wi... | 12/12/1995 |
