Process for the conversion of ethylene glycol to ethylenediamine employing a zeolite catalyst

US11091425B2 · 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 17, 2021
• Expiry date: Nov 29, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C211/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the conversion of ethane-1,2-diol 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 comprising YO2 and X2O3, wherein Y is a tetravalent element and X is a trivalent element, wherein the zeolitic material is selected from the group consisting of zeolitic materials having the MOR, FAU, CHA and/or GME framework structure, including combinations of two or more thereof; (ii) providing a gas stream comprising ethane-1,2-diol and ammonia; (iii) contacting the catalyst provided in (i) with the gas stream provided in (ii) for converting ethane-1,2-diol to ethane-1,2-diamine and/or linear polyethylenimines.