Abstract:
Disclosed is a one step process for making of 1,1,1,4,4,4-hexafluoro-2-butene. More specifically, the present invention provides a process for making hexafluoro-2-butene, continuously, from 2-chloro-3,3,3-trifluoropronene using Fe2O3/NiO impregnated carbon catalyst at 600° to 650° C.
Abstract:
The invention relates to a method for synthesizing a primary amine, comprising the steps of: a) providing at least one dianhydrohexitol, and b) aminating the dianhydrohexitol by reacting same with ammonia, the amination being performed by heterogeneous catalysis using a hydrogenation catalyst in the presence of hydrogen.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung von C 3 - bis C 19 -Aldehyden und/oder Alkoholen durch die Hydroformylierungvon Olefinen und Alkinen in der Gasphase mit einem Gemisch aus Wasserstoff und Kohlenmonoxid an einem heterogenen Katalysator bei einer Temperatur von 80 - 250 °C und einem Druck von 1,5 - 50 bar über dem Atmosphärendruck. Der heterogene Katalysator umfasst eine katalytisch aktive Komponente, wobei als katalytisch aktive Komponente Rh- oder Co-Phosphid oder Gemische der beiden verwendet wird, vorzugsweise wird als katalytisch aktive Komponente Rh-Phosphid verwendet. Das Gemisch aus Wasserstoff und Kohlenmonoxid weist ein H 2 /CO-Verhältnis von 0,1 - 1 auf.
Abstract:
Provided is a honeycomb structure 100 including: a pillar-shaped honeycomb structure body 4 that includes a porous partition wall which defines and forms a plurality of cells 2 formed as fluid flow passages and extending from a first end face as one end face to a second end face as the other end face, and that includes a circumferential wall 3 located at an outer circumference of the honeycomb structure body; and a pair of electrodes 6 and 6 which are disposed on a side surface of the honeycomb structure body 4. Here, an open frontal area of a center part 21 is 0.70 to 0.95 times an open frontal area of an outer circumferential part 22, where the center part 21 is defined as an area from a center of the honeycomb structure body 4 to a position of 10% of a length from the center to the outer circumference in a direction toward the outer circumference in a cross-section orthogonal to an extending direction of the cells 2 of the honeycomb structure body 4, and the outer circumferential part 22 is defined as an area from the outer circumference to a position of 10% of a length from the outer circumference to the center in a direction toward the center in the cross-section. The honeycomb structure is a catalyst carrier and also serves as a heater when a voltage is applied thereto, and is able to raise a temperature thereof to a necessary temperature up to a center part thereof in a short time when a voltage is applied thereto to purify an exhaust gas.
Abstract:
A method of forming a catalytic assembly comprises forming a support structure comprising at least one surface comprising at least one catalyst material. At least one mounted nanocatalyst is formed on the at least one support structure, the at least one mounted nanocatalyst comprising a nanoparticle of the at least one catalyst material bound to a nanostructure. A catalytic assembly and system for producing a catalytic assembly are also described.
Abstract:
The present invention relates to a polymer electrolyte membrane (PEM) water electrolyser, wherein a nitrogen-doped carbon is present in the anode-containing half-cell.
Abstract:
The invention relates to a method for preparing polyglycerol, comprising —providing a catalyst salt on a support, the catalyst salt having catalytic activity with respect to an etherification reaction of a polyol selected from the group of glycerol and oligoglycerols, —contacting the catalyst salt on the support with a fluid phase comprising a polyol selected from the group of glycerol and oligoglycerols, —and subjecting the polyol in the fluid phase to an etherification reaction in the presence of the catalyst salt, thereby forming the polyglycerol.
Abstract:
The present invention provides a novel hydrogenation reaction and hydrogenolysis reaction, and does not require a large scale hydrogen supply equipment and a high-pressure facility for a respective reaction. The present invention relates to a method for producing a hydrogenated compound, characterized in reducing a compound to be hydrogenated (C) using a hydrogen-containing compound (A) and a reduced compound (B) to produce the hydrogenated compound (c).
Abstract:
Carbonylation catalysts and methods for using them are disclosed. In some embodiments, the carbonylation catalyst includes the contact product of: (a) a nitrogen compound selected from monomeric pyridines and imidazoles; (b) a Group VIII metal; and (c) an alkali metal compound; wherein the catalyst material is on a solid support.