Abstract:
Catalysts comprising cobalt on a titania support are produced by mixing together particles of a solid titania support and an aqueous solution of cobalt ammine carbonate, and heating to an elevated temperature sufficient to effect decomposition of the cobalt ammine carbonate and precipitation of a cobalt species onto said support. The catalysts are useful in hydrogenation and Fischer-Tropsch reactions.
Abstract:
A catalyst or precursor thereto comprising cobalt and/or a cobalt compound on a transition alumina support having a total cobalt content of at least 41 % by weight and a cobalt surface area, after reduction, greater than 25 m per gram of total cobalt. The catalyst or precursor may be made by slurrying a transition alumina powder having a pore volume of at least 0.7 ml/g with an aqueous cobalt ammine carbonate complex and heating the slurry to decompose the complex.
Abstract:
L'invention concerne l'utilisation de plantes accumulatrices de métaux pour la préparation de catalyseurs utilisables dans des réactions chimiques.
Abstract:
Method for reducing the concentration of nitrogen oxides in waste gases released during the production of organic amino compounds, wherein an organic compound is first reacted with NO x and/or nitric acid to form an organic nitro compound with the formation of an NO x -containing waste gas stream and the organic nitro compound is converted to the organic amino compound by means of a hydrogen-containing reaction gas, the reaction of the organic nitro compound with the hydrogen-containing reduction gas taking place with the formation of a hydrogen-containing waste gas stream, the method being characterised in that the NO x -containing waste gas stream (1) is combined with the hydrogen-containing waste gas stream and/or an externally supplied hydrogen stream (3) and is reacted at a temperature of 800 to 1700°C for the at least partial reduction of the NO x concentration. An apparatus for carrying out the method is also described.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen von Nitrobenzolderivaten und Anilinderivaten, die als Zwischenprodukte für fungizid wirksame Alkylanilide Bedeutung haben.
Abstract:
Provided herein are (phenylene)dialkanamines, and methods of producing such (phenylene)dialkanamines from various furanyl and benzyl compounds. Such furanyl compounds may include, for example, bis(nitroalkyl)furans, bis(aminoalkyl)furans, and nitroalkyl(furan)acetonitriles. Such compounds may include, for example, bis(nitroalkyl)benzenes. Provided herein are also alkyldiamines, and methods for producing such alkyldiamines from furanyl compounds.