摘要:
Mercury and/or arsenic or compounds thereof are removed from streams of matter by contacting them with an absorption composition containing silver and aluminium oxide, which absorption composition is characterized in that the aluminium oxide is at least 50% by weight theta-aluminium oxide.
摘要:
Catalyst in the form of an extrudate which comprises from 5 to 85% by weight of copper oxide and in which the same oxidic support material is present in the active composition and as binder, and the use of the catalyst for the hydrogenation of carbonyl compounds.
摘要:
A container for uptaking, or storing, or releasing, or uptaking and storing, or uptaking and releasing, or storing and releasing, or uptaking, storing and releasing at least one gas, comprising a metal-organic framework material comprising pores and at least one metal ion and at least one at least bidentate organic compound which is bound to said metal ion, as well as to a fuel cell comprising said container, and to a method of using said container or said fuel cell for supplying power to power plants, cars, trucks, busses, cell phones, and laptops.
摘要:
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.
摘要:
Catalysts or carriers which consist essentially of monoclinic zirconium dioxide are prepared by pecipitation of zirconium salts with ammonia, by adding a zirconyl nitrate or zirconyl chloride solution to an aqueous ammonia solution at a decreasing pH from 14 to 6 and drying, calcining and pelletizing the product.
摘要:
An organometallic framework material is prepared by a process which comprises reacting a fluid mixture comprising a metal salt with at least one at least bidentate organic compound capable of coordination to metal ions in the presence of at least one base and a solvent, where the solvent comprises at least one cyclic amide (lactam) and/or at least one cyclic ester (lactone).
摘要:
The present invention relates to a method for the absorption of liquids, which comprises the step bringing the liquid into contact with at least one sorbent comprising a porous metal-organic framework, the framework taking up the liquid and comprising at least one at least bidentate organic compound having a coordinate bond to at least one metal ion.
摘要:
A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is brought into contact in the presence of hydrogen with a shaped article which can be produced in a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and at least one of the oxides of lanthanum, tungsten, molybdenum, titanium or zirconium is prepared, (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to a shaped article.
摘要:
A process for the hydrogenation of an organic compound containing at least one carbonyl group comprises bringing the organic compound in the presence of hydrogen into contact with a shaped body which can be produced by a process in which (i) an oxidic material comprising copper oxide, zinc oxide and aluminum oxide is made available, (ii) pulverulent metallic copper or pulverulent cement or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to form a shaped body.
摘要:
The present invention relates to a process for preparing optionally alkyl-substituted 1,4-butanediol by two-stage catalytic hydrogenation in the gas phase of C4-dicarboxylic acids and/or of derivatives thereof having the following steps: a) introducing a gas stream of a C4-dicarboxylic acid or of a derivative thereof at from 200 to 300° C. and from 2 to 60 bar into a first reactor and catalytically hydrogenating it in the gas phase to a product which contains mainly optionally alkyl-substituted γ-butyrolactone; b) removing succinic anhydride from the product obtained in step a), preferably to a residual level of from