Abstract: A supported catalyst system for polymerizing olefins comprising a) a support, b) a Lewis base of the formula M3R6R7R8 ??(I) wherein M3 is an element of main group III of the Periodic Table of the Elements, c) an organometallic compound of the formula II as cocatalyst, M3R6R7R8 ??(II) wherein M3 is an element of main group III of the Periodic Table of the Elements, d) at least one metallocene, e) an organometallic compound of the formula [M4R9j]kIII where M4 is an element of main groups I, II or III of the Periodic Table of the Elements, where the organometallic compound of the formula II is covalently bound to the support.

Abstract: An aqueous catalyst solution comprising rhodium and an aqueous solution comprising sulfonated arylphosphines by reacting arylphosphines with oleum to form a sulfonation mixture, diluting the sulfonation mixture with water, extracting the diluted sulfonation mixture with a solution of a water-insoluble amine in a water-insoluble organic solvent, reacting the resulting water-immiscible organic phase with a solution of an inorganic base in water, adjusting the resulting aqueous solution of sulfonated arylphosphines of pH of up to 3 by addition of an acid, and passing an inert gas stream through the aqueous solution comprising sulfonated arylphosphines until sulfur dioxide is no longer liberated from the aqueous solution of sulfonated arylphosphines.

Abstract: A process for preparing sulfonated arylphosphines by reaction of arylphosphines with oleum, wherein, after reaction of the arylphosphines with oleum, the sulfonation mixture is firstly diluted with water, an inert gas stream is then passed through the diluted sulfonation mixture until SO2 is no longer liberated from the diluted sulfonation mixture and the latter is then worked up further in a customary manner and its use.

Abstract: 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 quaternary singly-charged ammonium ion or the equivalent of a multiply charged ammonium ion and organic sulfonates or sulfates.

Abstract: A process for preparing sulfonated arylphosphines by reaction of arylphosphines with oleum, wherein, after reaction of the arylphosphines with oleum, the sulfonation mixture is firstly diluted with water, an inert gas stream is then passed through the diluted sulfonation mixture until SO2 is no longer liberated from the diluted sulfonation mixture and the latter is then worked up further in a customary manner and its use.

Abstract: 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 quaternary singly-charged ammonium ion or the equivalent of a multiply charged ammonium ion and organic sulfonates or sulfates.

Abstract: A process for preparing solutions of sulfonated arylphosphines comprising reacting arylphosphines with oleum, diluting the sulfonation mixture with water, extracting the diluted sulfonation mixture with a solution of a water-insoluble organic solvent, reacting the organic phase with a solution of an inorganic base in water, adjusting the resulting aqueous solutin of sulfonated arylphosphines to a pH of up to 3 by addition of an acid, and passing an inert gas stream through the aqueous solution comprising sulfonated arylphosphines until sulfur is no longer liberated from the aqueous solution of sulfonated arylphosphines.

Abstract: The invention relates to a process for preparing cyclohexanedicarboxylic esters (hexahydrophthalic diesters) by esterifying the corresponding benzenedicarboxylic acids and immediately hydrogenating the esterification mixture in the presence of nickel catalysts.

Abstract: The invention relates to novel ionic liquids and to the production and use thereof. The novel ionic liquids are salts of sulphonated or carboxylated triesters of phosphorous acid as the anionic component and ammonium ions, which can be substituted with organic radicals, as the cationic component.

Abstract: 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 metallic rhodium and/or more than one rhodium compound with rhodium-complexing compounds and with carbon monoxide and hydrogen, the use of said reaction product in catalytic processes and also the preparation of a catalytic composition with addition of said reaction product.

Abstract: A process for preparing solutions of sulfonated arylphosphines comprising reacting arylphosphines with oleum, diluting the sulfonation mixture with water, extracting the diluted sulfonation mixture with a solution of a water-insoluble organic solvent, reacting the organic phase with a solution of an inorganic base in water, adjusting the resulting aqueous solutin of sulfonated arylphosphines to a pH of up to 3 by addition of an acid, and passing an inert gas stream through the aqueous solution comprising sulfonated arylphosphines until sulfur is no longer liberated from the aqueous solution of sulfonated arylphosphines.

Abstract: A catalyst system with at least one specifically substituted metallocene which contains a cationic group as a substituent, a process for preparing such a catalyst system and its use in the polymerization of olefins. In particular, said catalyst system has (a) at least one support, (b) at least one cocatalyst and (c) at least one metallocene of the formula where M1, R1, R2, R3, m, m′, A, k and X are defined herein.

Abstract: A catalyst system comprises a) a cocatalytically active chemical compound A, b) at least one metallocene B and c) an aluminum compound C.

Abstract: A catalyst system which can be used in the polymerization of propylene comprises at least one metallocene as a rac/meso isomer mixture, at least one organoboroaluminum compound, at least one passivated support, at least one Lewis base and, if desired, at least one further organometallic compound.

Abstract: 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 metallic rhodium and/or more than one rhodium compound with rhodium-complexing compounds and with carbon monoxide and hydrogen, the use of said reaction product in catalytic processes and also the preparation of a catalytic composition with addition of said reaction product.

Abstract: Specifically substituted metallocenes can be used in the polymerization of olefins. The novel compounds contain a cationic group as substituents and are suitable as constituents of a catalyst system for the polymerization of olefins.

Abstract: The invention relates to a process for preparing cyclohexanedicarboxylic esters (hexahydrophthalic diesters) by esterifying the corresponding benzenedicarboxylic acids and immediately hydrogenating the esterification mixture in the presence of nickel catalysts.

Abstract: A catalyst system comprises a) a cocatalytically active chemical compound A, b) at least one metallocene B and c) an aluminum compound C.

Abstract: Mixtures of critic acid esters useful as plasticizers and a process of producing the same.

Abstract: The present invention relates to a catalyst system comprising metallocene, cocatalyst, support material and, if desired, further organometallic compounds. The catalyst system can advantageously be used for the polymerization of olefins, where the use of aluminoxanes such as methylaluminoxane (MAO), which usually has to be used in a large excess, as cocatalyst can be dispensed with and a high catalyst activity and good polymer morphology are nevertheless achieved.