Abstract:
A process for treating an organic solution of a partially deactivated solubilized rhodium - tertiary organophosphine complex hydroformylation catalyst with an organic reagent in order to improve the extractability of rhodium therefrom into an aqueous solution containing an ionic organophosphine ligand.
Abstract:
Catalyst compositions based upon a) a palladium containing component, b) an acid component, c) a supported bidentate ligand which can be obtained from 1) a solid support comprising reactive groups, and 2) an unsupported bidentate ligand comprising two phosphorus, nitrogen or sulphur containing dentate groups via which the bidentate ligand is able to form a complex with the palladium containing component, and comprising, in addition to the dentate groups, a reactive group, by a coupling reaction involving the reactive groups of the solid support and the unsupported bidentate ligand, and d) optionally, a 1,4-quinone, and a process for the preparation of polymers of carbon monoxide and one or more olefinically unsaturated compounds using the aforementioned catalyst compositions.
Abstract:
L'invention concerne une composition catalytique résultant de la mise en contact, dans un ordre quelconque, d'au moins un composé de nickel bivalent avec au moins un halogénure d'hydrocarbylaluminium et au moins un composé époxy. Elle concerne également la mise en oeuvre de ladite composition catalytique dans un procédé d'oligomérisation de monooléfines.
Abstract:
On a mis au point un procédé de traitement d'une solution organique d'un catalyseur d'hydroformylation à complexe de rhodium - organophosphine tertiaire solubilisé partiellement désactivé, à l'aide d'un réactif organique, afin d'améliorer la capacité d'extraction de rhodium à partir de ladite solution, par l'obtention d'une solution aqueuse contenant un ligand d'organophosphine ionique.
Abstract:
A process for hydroxylating olefins, such as ethylene or propylene, using an oxidant selected from organic hydroperoxides, H 2 0 2 , and oxygen and a catalyst composition comprising at least one osmium carbonyl catalyst, such as Os 3 (CO) 12 , and optionally at least one co-catalyst such as Nal, is disclosed.
Abstract translation:使用选自有机氢过氧化物,H 2 O 2和氧气的氧化剂和包含至少一种羰基锇催化剂如Os 3(CO)12的催化剂组合物和任选的至少一种助催化剂的催化剂组合物来使烯烃如乙烯或丙烯进行羟基化的方法 例如NaI,被公开。
Abstract:
The present invention relates to a hydroprocessing catalyst comprising: (i) one or more hydrogenation metal components selected from a group consisting of VIB group metal, VIIB group metal and VIII group metal; and (ii) an organic compound expressed by the following chemical formula 1 or an organometallic compound expressed by the following chemical formula 2. Chemical formula 1: R 1 COCH 2 COR 2 (wherein, R 1 and R 2 are the same or different from each other, and are one or more groups selected from a group consisting of C1 to C12 alkyl, C6 to C12 allyl, C1 to C12 alkoxy and hydroxy). Chemical formula 2: X( R 1 COCH 1 COR 2 )n (wherein, X is selected from a group consisting of VIB group metal, VIIB group metal and VIII group metal, R 1 and R 2 are the same or different from each other, and are one or more groups selected from a group consisting of C1 to C12 alkyl, C6 to C12 allyl, C1 to C12 alkoxy and hydroxy, and n is an integer of 1 to 6).
Abstract:
The invention relates to a method for preparing a catalyst from a catalytic precursor including an alumina and/or silica-alumina and/or zeolite support, and including at least one Group VIB element and optionally at least one Group VIII element, said method involving impregnating said precursor with a solution of a C1-C4 dialkyl succinate. The method comprises a step (step 1) of impregnating said dried, calcined or regenerated precursor with at least one solution containing at least one carboxylic acid other than acetic acid, followed by aging and drying at a temperature of less than or equal to 200°C, optionally followed by a heat treatment at a temperature of less than 350°C, step 1 being followed by impregnation (step 2) with a solution containing at least one C1-C4 dialkyl succinate followed by aging, and drying at a temperature of less than 200°C, without a subsequent calcining step. The catalyst is used in hydroprocessing and/or hydroconversion.