Abstract:
The invention relates to a method for stripping sulfur and/or a sulfur-containing compound from a sugar, a sugar alcohol and/or from a sugar acid by bringing the sugar, sugar alcohol and/or the sugar acid in a liquid phase into contact with an adsorber. Sugar, sugar alcohol or sugar acid can be produced by using this method, and they can be used as constituents in pharmaceutical or cosmetic products or in foodstuffs or as a building block in chemical synthesis.
Abstract:
The invention relates to a porous organo-metallic skeleton material for accommodating at least one substance. The skeleton material contains at least one at least bidentate organic compound that is coordinatively bound to at least one metal ion, whereby the skeleton material has, at least in part, pores that contain a polymer, which is suited for adsorbing a substance. The invention also relates to a method for producing the skeleton material, to a method for accommodating at least one substance by the skeleton material, and to the use of the skeleton material, in particular, for storing, separating, controlled release or chemically converting an accommodated substance.
Abstract:
The invention relates to a method for producing a porous metal-organic framework material which contains at least two organic compounds which are co-ordinatively connected to at least one metal ion. The invention also relates to porous metal-organic framework materials which are produced according to said method, in addition to the use thereof, in particular, for storing and separating gas.
Abstract:
The invention relates to methods for storing an acetylene-containing gas in a porous metal-organic framework material, said metal-organic framework material containing at least one, at least bidentate compound that is coordinately bound to at least one metal ion. The method according to the invention comprises the step of contacting the acetylene-containing gas with the metal-organic framework material, the metal-organic framework material being copper-free. The invention also relates to a porous metal-organic framework material which contains the acetylene-containing gas and to a corresponding acetylene gas-pressure container and the use thereof.
Abstract:
The invention relates to a method for production of xenon from gas mixtures, containing xenon and krypton as main components, whereby the gas mixture is brought into contact with a porous organometallic framework material and xenon is subsequently obtained by desorption.
Abstract:
The invention concerns a process for preparing polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butin-1,4-diol, diesters of these polymers with C2-C20 monocarboxylic acids or monoesters of these polymers with C1-C10 monocarboxylic acids by polymerizing tetrahydrofuran in the presence of one of the following telogens, water, 1,-4-butane diol, 2-butin-1,4-diol, polytetrahydrofuran with a molecular weight of between 200 and 700 Dalton, or of a C1-C10 monocarboxylic acid or a carboxylic acid anhydride produced from C2-C20 monocarboxylic acids or mixtures of these telogens on a heterogeneous carrier catalyst which contains a catalytically active amount of an oxygenous molybdenum and/or tungsten compound on an oxidic carrier material, and which has been calcined at temperatures of between 500 °C and 1000 °C after application of the precursor compounds of the oxygenous molybdenum and/or tungsten compounds to the carrier material precursors. Before it is used as a polymerization catalyst, the catalyst is activated by treatment with a reducing agent.
Abstract:
The invention relates to a method for producing propene from propane. Said method comprises the following steps: A) a feed gas stream (a) containing propane is prepared; B) the feed gas stream (a) containing propane, is introduced with optionally water vapour and optionally, an oxygen-containing gas stream into a dehydrogenation zone and then the propane is dehydrogenated to form propene, and a product gas stream (b) containing propane, propene, methane, ethane, ethene, hydrogen, optionally carbon monoxide, carbon dioxide, water vapour and oxygen, is obtained; C) the product gas stream (b) is cooled, optionally compressed and then water vapour is separated by condensation and a product gas stream (c) depleted in water vapour is obtained; D) the product gas stream (c) is brought into contact with a selectively active adsorber which selectively adsorbs propene in the selected adsorption conditions, and an adsorber charged with propene and a gas stream (d2) depleted in propene and containing propane, methane, ethane, ethene and hydrogen, carbon monoxide and carbon dioxide are obtained; E) a gas stream (e1) containing propene is released from the adsorber charged with propene by reducing the pressure and/or heat of the adsorber.
Abstract:
The invention relates to a method for producing an aqueous amorphous titanium dioxide dispersion having an average particle size ranging from 10 to 500 nm. The inventive method is characterized in that at least one titanium tetraalcoholate of general formula Ti(OR) 4 , wherein R = C 1 to C 6 alkyl, is hydrolyzed in the aqueous dispersion.
Abstract:
The invention relates to a porous organometallic backbone material that is formed by AI III ions to which fumarate ions are bound so as to embody a backbone structure. The invention further relates to molded articles containing such a porous organometallic backbone material as well as the production and use thereof as a carrier or for absorbing a substance in order to store said substance, dispense the same in a controlled manner, separate or chemically react the same.
Abstract translation:本发明涉及到AI III SUP>离子在配位Fumarationen形成的多孔金属有机骨架连接,以形成框架结构。 还包括,本发明涉及这样的成型制品的多孔金属有机骨架材料和其生产和使用列入的物质的到其存储,控制释放,分离,化学反应,或者作为载体。
Abstract:
The present invention relates to a process for the alkoxylation of a monool with at least one alkoxylating agent to an alkoxylated alcohol wherein a catalyst is employed which comprises a metallo-organic framework material of metal ions and at least bidentate coordinately bound organic ligands.