Abstract:
The present invention relates to a process for the alkoxylation of organic compounds comprising the reaction of at least one organic compound with at least onealkoxylating agent in the presence of a catalyst system, wherein a polyetheralcohol is obtained. The catalyst system comprises a metallo organic framework mate-rial comprising pores and at least one metal ion and at least one at least bidentate organic compound, which is coordinately bounded to said metal ion. Furthermore it relates to polyurethanes or polyurethane foams, which are obtainable by using a prepared polyether alcohol as a starting material.
Abstract:
The invention relates to producing a silicate containing at least one type of silicium and oxygen consisting (1) in mixing silicium dioxide and/or silicium dioxide precursors with an aqueous solution, which comprises at least one type of R 1 R 2 R 3 R 4 N + compound containing a tetra-acryl ammonium compound and at least one type of base, wherein R 1 and R 2 represent methyl and, at the same time, R 3 and R 4 represent n-propyl; (2) in heating the colloidal solution thus obtained with a temperature greater than a boiling temperature at a selected colloidal solution pressure up to 180 °C at a normal pressure in such a way that at least one type of silicate-containing suspension is obtained. Said invention is characterised in that the silicium and oxygen-containing silicate is added in the form of a crystallisation-assisting agent.
Abstract:
The invention relates to a catalyst support and to catalysts comprising said support and having a defined tortuosity. The invention also relates to the use thereof for heterogeneous catalytic hydrogenation processes of hydrocarbons.
Abstract:
The invention relates to a method for producing polyether alcohols by adding alkylene oxides to H-functional starting substances by means of multi-metal cyanide catalysts. The inventive method is characterized in that the multi-metal cyanide catalysts are microporous and have a specific surface of greater than 100 m /g defined by nitrogen adsorption at 77K.
Abstract:
The present invention relates to a process for preparing a porous metal organic framework comprising at least two organic compounds coordinated to at least one metal ion, which comprises the steps (a) oxidation of at least one anode containing metal corresponding to the at least one metal ion in a reaction medium in the presence of at least a first organic compound, where the first organic compound is an optionally substituted monocyclic, bicyclic or polycyclic saturated or unsaturated hydrocarbon in which at least two ring carbons are replaced by heteroatoms selected from the group consisting of N, O and S, to form a reaction intermediate containing at least one metal ion and the first organic compound; and (b) reaction of the reaction intermediate at a prescribed temperature with an at least second organic compound which coordinates to the at least one metal ion, where the second organic compound is derived from a dicarboxylic, tricarboxylic or tetracarboxylic acid.
Abstract:
The invention relates to a method for producing a shaped body that contains at least one zeolite. The inventive method comprises the following steps: (X) producing a mixture containing a zeolite or a mixture of two or more thereof, (XI) mixing the mixture obtained in (I) with a binder, and (XII) kneading, shaping, drying and calcinating the mixture obtained in step (II). The method is further characterized in that the binder contains aluminum.
Abstract:
The invention relates to an oxidic catalyst which comprises at least the elements Si, Al, O and N and does not comprise carbon and is provided with at least one of the zeolite structures selected from the group consiting of MFI, MEL, BEA, MOR, MWW, RUT, RTH, EUO, FER, LTA, MTT, MTW, CHA, AFI, ERI, SOD, RHO, BOG, NON, EMT, MTN, HEU, DDR, DOH, LTL, NES, KFI, RSN, SGT, MFS and MTF.
Abstract:
Hydrogen or methane gas pressure container having a minimum volume of 1 m3 a prescribed maximum filling pressure, has a filter through which oxygen, methane respectively, can flow during uptake. The filter has an adsorbent for adsorbing impurities selected from the group consisting of a higher hydrocarbon, ammonia, an odorous substance, hydrogen sulfide and a mixture of two or more of these substances. The pressure container and the filter comprise porous metal organic frameworks as adsorbent.
Abstract:
A process for preparing an organometallic framework material comprising reacting at least one metal salt with at least one at least bidentate compound capable of coordination to the metal ion of said metal salt, in the presence of an aqueous solvent system and at least one base wherein at least one bidentate compound comprises at least carboxy group and at least one further group which is not a carboxy group and which is capable of forming a hydrogen bridge linkage.
Abstract:
A process for preparing an organometallic framework material comprising reacting at least one metal salt with at least one at least bidentate compound capable of coordination to the metal ion of said metal salt, in the presence of an aqueous solvent system and at least one base wherein at least one bidentate compound comprises at least carboxy group and at least one further group which is not a carboxy group and which is capable of forming a hydrogen bridge linkage.