Abstract:
The invention relates to a method for producing ethanolamines by means of reacting glycol aldehyde with monoethanolamine and/or diethanolamine in the presence of a catalyst.
Abstract:
The invention relates to a method for producing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound, selected from the group including ammonia, primary and secondary amines, in the presence of a zirconium dioxide-containing and nickel-containing catalyst, the catalytically active mass of the catalyst prior to its reduction with hydrogen containing oxygen-containing compounds of zirconium, nickel and iron and 0.2 to 5.5% by weight of oxygen-containing compounds of tin, lead, bismuth, molybdenum, antimony and/or phosphorous, each calculated as SnO, PbO, Bi2O3, MoO3, Sb2O3 or H3PO4. The invention also relates to catalysts of the above type.
Abstract:
Disclosed is a method for producing an amine by reacting a primary or secondary alcohol, aldehyde, and/or ketone with hydrogen and a nitrogen compound selected from among the group comprising ammonia and primary and secondary amines in the presence of a catalyst containing zirconium dioxide, copper, and nickel. Before being reduced with hydrogen, the catalytically active material of the catalyst contains oxygen-containing compounds of zirconium, copper, and nickel, 1.0 to 5.0 percent by weight of oxygen-containing compounds of cobalt, calculated as CoO, and 0.2 to 5.0 percent by weight of a polyoxometallate. Also disclosed are catalysts as defined above.
Abstract:
Method for producing ethylamines and monoisopropylamine (MIPA), in which bioethanol is reacted with ammonia in the presence of hydrogen and a heterogeneous catalyst to form ethylamines, wherein the bioethanol contains sulphur and/or sulphur-containing compounds of ≥ 0.1 ppm by weight (calculated S), and then in the presence of the same catalyst, isopropanol is reacted with ammonia in the presence of hydrogen to form MIPA.
Abstract:
The present invention relates to a process for hydrogenating organic nitriles by means of hydrogen in the presence of a catalyst in a reactor, where the shaped body catalyst is arranged in a fixed bed, wherein the shaped body in the shape of spheres or rods has in each case a diameter of 3 mm or less, in the shape of tablets a height of 4 mm or less, and in the case of all other geometries in each case has an equivalent diameter L = 1/a' of 0.70 mm or less, where a' is the external surface area per unit volume (mms 2/mmp 3), with: (I) where Ap is the external surface area of the catalyst particle (mms 2) and Vp is the volume of the catalyst particle (mmp 3). The present invention further relates to a process for preparing downstream products of isophoronediamine (IPDA) or N,N-dimethylaminopropylamine (DMAPA) from amines prepared according to the invention.
Abstract:
The invention relates to a method for producing an amine by reacting a primary or secondary alcohol, aldehyde and/or ketone with hydrogen and a nitrogen compound, selected from the group containing ammonia and primary and secondary amines, in the presence of a supported catalyst that contains copper, nickel and cobalt. According to the invention, the catalytically active mass of the catalyst, prior to the reduction of the same using hydrogen, contains oxygen-containing compounds of aluminium, copper, nickel and cobalt and an amount ranging between 0.2 and 5.0 wt. % of oxygen-containing compounds of tin, calculated as SnO. The invention also relates to catalysts defined as above.