PROCESS TO PREPARE ETHYLENE AMINES AND ETHYLENE AMINE DERIVATIVES

A process is provided for preparing ethyleneamines of the formula NH2-(C2H4-NH-)pH wherein p is at least 3, or derivatives thereof wherein one or more units -NH-C2H4-NH- may be present as a cyclic ethylene urea unit or piperazine unit or between two units -NH-C2H4-NH- a carbonyl moiety is present. T...

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Main Authors JOVIC, Slavisa, EDVINSSON, Rolf Krister, TEN KATE, Antoon Jacob Berend, VENEMAN, Rens, LAKE, Karl Fredrik, ADRIAN MEREDITH, Jenny Valborg Therese, SARNING, Michael Bertil Einar, SKANSEN, Björn Patrik, EHLERS, Ina, RAAIJMAKERS, Michiel Jozef Thomas, KANTZER, Eike Nicolas, VAN DAM, Hendrik
Format Patent
LanguageEnglish
Published 28.05.2020
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:A process is provided for preparing ethyleneamines of the formula NH2-(C2H4-NH-)pH wherein p is at least 3, or derivatives thereof wherein one or more units -NH-C2H4-NH- may be present as a cyclic ethylene urea unit or piperazine unit or between two units -NH-C2H4-NH- a carbonyl moiety is present. The process includes reacting an ethanolamine-functional compound OH-(C2H4-NH-)qH wherein q is at least 2, an amine-functional compound NH2-(C2H4-NH-)rH wherein r is at least 1, in the presence of a carbon oxide delivering agent, wherein the molar ratio of ethanolamine-functional compound to amine-functional compound is from about 0.05:1 to about 0.7:1 and the molar ratio of carbon oxide delivering agent to amine-functional compound is higher than the molar ratio of ethanolamine-functional compound to amine-functional compound, provided that the process does not comprise reacting 3 moles of ethylenediamine (EDA) and 1 mole of AEEA (aminoethylethanolamine) in the presence of 1.65 moles of urea at 280 deg C. for 2 hours.
Bibliography:Application Number: US201816630291