公开(公告)号：US11267792B2

公开(公告)日：2022-03-08

申请号：US16630291

申请日：2018-07-03

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Michiel Jozef Thomas Raaijmakers ,  Antoon Jacob Berend Ten Kate ,  Rens Veneman ,  Karl Fredrik Lake ,  Slavisa Jovic ,  Eike Nicolas Kantzer ,  Ina Ehlers ,  Rolf Krister Edvinsson ,  Björn Patrik Skansen ,  Michael Bertil Einar Sarning ,  Jenny Valborg Therese Adrian Meredith ,  Hendrik Van Dam

IPC分类号： C07D241/04 ,  C07C213/08 ,  C07D233/34 ,  C07D263/22 ,  C07D413/06 ,  C07D233/36

摘要： 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.

公开(公告)号：US10793511B2

公开(公告)日：2020-10-06

申请号：US16638393

申请日：2018-08-07

申请人： NOURYON CHEMICALS INTERNATIONAL B.V.

发明人： Antoon Jacob Berend Ten Kate ,  Rens Veneman ,  Michiel Jozef Thomas Raaijmakers ,  Slavisa Jovic ,  Rolf Krister Edvinsson ,  Hendrik Van Dam ,  Eike Nicolas Kantzer ,  Ina Ehlers ,  Björn Patrik Skansen ,  Michael Bertil Einar Andersson-Sarning ,  Karl Fredrik Lake ,  Stig Mikael Wernersson

IPC分类号： C07C209/00 ,  C07C213/00 ,  C07C209/62 ,  C07C213/02

摘要： A process is provided for converting cyclic alkyleneureas into their corresponding alkyleneamines. The process includes reacting a feedstock comprising cyclic alkyleneureas in the liquid phase with water in an amount of from about 0.1 to about 20 mole water per mole urea moiety, at a temperature of at least 230° C., with removal of CO2. The process may allow the efficient conversion of alkyleneureas into the corresponding alkyleneamines. In certain embodiments, the process has a high yield and low side product production.