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:
Synthesis of olefin from synthesis gas in the presence of at least a Fischer-Tropsch catalyst in a reaction column comprises introducing the synthesis gas into the beneath of the zone (A) of the reaction column and removing the obtained olefin from the beneath of the inlet for the synthesis gas. An independent claim is included for a mixture of olefin obtained by the above process.
Abstract:
Preparation of ethylene amine comprises reacting a monoethanol amine with ammonia in the presence of a transition metal heterogeneous catalyst; where the catalytic active mass of the catalyst before treating with hydrogen contains oxides of aluminum, copper, nickel or cobalt; where the catalyst is in a bead or rod shape with a diameter of less than 3 mm or in tablet shape with a height of less than 3 mm and as well as in other geometrical forms. Preparation of ethylene amine comprises reacting a monoethanol amine with ammonia in the presence of a transition metal heterogeneous catalyst; where the catalytic active mass of the catalyst before treating with hydrogen contains oxides of aluminum, copper, nickel or cobalt; the catalyst is in a bead or rod shape with a diameter of less than 3 mm or in tablet shape with a height of less than 3 mm, and in other geometrical forms the catalyst has an equivalent diameter (L) equal to 1/a of less than 0.70 mm (where a is A p/V p, in which a is an external surface area per volume (mm s 2>/mm p 3>), A p is an external surface area of the catalyst particle and V p is the volume of the catalyst particle).
Abstract:
Preparation of aminodiglycol and morpholine comprises reacting diethyleneglycol with ammonia in the presence of a transition metal heterogeneous catalyst. The catalytically active mass of the catalyst, before treatment with hydrogen, contains oxygen-containing compounds of aluminum and/or zirconium, copper, nickel and cobalt, and that the catalyst molding is in spherical or strand form has a diameter of less than 3 mm, in tablet form has a height of less than 3 mm and in all other geometrical shapes with an equivalent diameter (L is I/a) of less than 0.70 mm. Preparation of aminodiglycol and morpholine comprises reacting diethyleneglycol with ammonia in the presence of a transition metal heterogeneous catalyst. The catalytically active mass of the catalyst, before treatment with hydrogen, contains oxygen-containing compounds of aluminum and/or zirconium, copper, nickel and cobalt, and that the catalyst molding is in spherical or strand form has a diameter of less than 3 mm, in tablet form has a height of less than 3 mm and in all other geometrical shapes with an equivalent diameter (L is I/a) of less than 0.70 mm (where a is the external surface per volume unit (mm s2>/mm p3>), with the formula (a is A p/V p), in which A pis the external surface of the catalyst particle (mm s2>) and V pis the volume of the catalyst particle (mm p3>)).
Abstract:
Processes for preparing amines comprising reacting an aldehyde and/or ketone with hydrogen and a nitrogen compound in the presence of a heterogeneous catalyst, wherein the heterogeneous catalyst comprises a catalyst packing prepared by applying at least one compound selected from the group consisting of catalytically active metals, compounds of catalytically active metals, and mixtures thereof to a support material selected from the group consisting of woven fabrics, knitted fabrics, foils, and combinations thereof.