Process for the conversion of monoethanolamine to ethylenediamine employing a copper-modified zeolite of the MOR framework structure

US11104637B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Andrei-Nicolae Parvulescu · Ludwigshafen am Rhein, DE
• Alvaro Gordillo · Heidelberg, DE
• Marie Katrin Schroeter · Ludwigshafen am Rhein, DE
• Johann-Peter Melder · Schifferstadt, DE
• Juergen Bechtel · Heidelberg, DE
• Thomas Heidemann · Viernheim, DE
• Stephan Schunk · Heidelberg, DE
• Ulrich Müller · Neustadt, DE

Key dates

• Filing date: Nov 29, 2017
• Grant date: Aug 31, 2021
• Expiry date: Nov 29, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2229/183
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the conversion of 2-aminoethanol to ethane-1,2-diamine and/or linear polyethylenimines of the formula H2N—[CH2CH2NH]n—CH2CH2NH2 wherein n≥1 comprising: (i) providing a catalyst comprising a zeolitic material having the MOR framework structure comprising YO2 and X2O3, wherein Y is a tetravalent element and X is a trivalent element, said zeolitic material containing copper as extra-framework ions; (ii) providing a gas stream comprising 2-aminoethanol and ammonia; (iii) contacting the catalyst provided in (i) with the gas stream provided in (ii) for converting 2-aminoethanol to ethane-1,2-diamine and/or linear polyethylenimines.