Abstract:
The invention relates to a method for producing triethylenetetramine that is substituted with at least one methyl group (Me-TETA or methyl-substituted TETA compounds). Me-TETA is produced by hydrogenating biscyanomethyl imidazolidine (BCMI) in the presence of a catalyst. The present invention further relates to methyl-substituted TETA compounds as such. The present invention further relates to the use of methyl-substituted TETA compounds as an educt or intermediate product in the production of, for example, coatings or adhesives.
Abstract:
The invention relates to a method for producing an ethyleneamine mixture, wherein an aminonitrile mixture containing at least 30 wt. % aminoacetonitrile (AAN) and at least 5 wt. % iminodiacetonitrile (IDAN) is hydrogenated in the presence of a catalyst. Ethylenediamine (EDA) and/or diethylenetriamine (DETA) and optionally further ethyleneamines can be isolated from the resulting ethyleneamine mixtures.
Abstract:
The invention relates to 5-isopropyl-3-aminomethyl-2-methyl-1-amino-cyclohexane (carvone diamine) and a method for the production thereof by a) reacting carvone with hydrogen cyanide, b) then reacting the carvone nitrile obtained in step a) with ammonia in the presence of an imine-forming catalyst, and c) subsequently reacting the reaction mixture that is obtained in step b) and contains carvone nitrilimine with hydrogen and ammonia on hydrogenation catalysts. The invention further relates to the use of carvone diamine as a curing agent for epoxy resins, as an intermediate product when producing diisocyanates, as an initiator entity when producing polyetherols, and/or as a monomer for producing polyamides.
Abstract:
The invention relates to a method for producing an aminonitrile mixture containing aminoacetonitrile (AAN) and 5 to 70 wt. % iminodiacetonitrile (IDAN), wherein crude AAN, essentially free of formaldehyde cyanohydrin (FACH-free) is heated to a temperature of 50 to 150°C.
Abstract:
The invention relates to a method for producing triethylenetetramine (TETA), comprising the following steps: a) ethylenediamine (EDA) is reacted with formaldehyde and hydrogen cyanide (HCN), the molar ratio of EDA to formaldehyde to HCN being between 1 : 1.5 : 1.5 and 1 : 2 : 2 [mol/mol/mol], to obtain ethylenediamine diacetonitrile (EDDN); b) the EDDN obtained in step a) is hydrogenated in the presence of a catalyst and a solvent.
Abstract:
The invention relates to a method for producing an ethyleneamine mixture, according to which an aminonitrile mixture containing at least 2 α-aminonitrile is hydrogenated to at least 5 % by weight in the presence of a catalyst and optionally a solvent.
Abstract:
The invention relates to aminocarboxylic acid esters having EO/PO/BuO-blockpolymers, to a method for producing said type of compounds and to the use thereof as demulsifiers, in particular for crude oil emulsions.
Abstract translation:本发明涉及具有EO / PO / BuO-嵌段共聚物的氨基羧酸酯,涉及用于制备所述类型的化合物的方法,并涉及其作为破乳剂,特别是用于原油乳液的用途。
Abstract:
Mixture of L- and D-enantiomers of methyl glycine diacetic acid (MGDA) or its respective mono-, di or trialkali metal or mono-, di- or triammonium salts, said mixture containing predominantly the respective L-isomer with an enantiomeric excess (ee) in the range of from 10 to 75%.