US 11,753,364 B2
Method for producing C2-C4 mono alkanol amines using an acid cation exchanger as a catalyst
Christian Gruenanger, Ludwigshafen am Rhein (DE); Gabriele Iffland, Ludwigshafen am Rhein (DE); Zeljko Kotanjac, Ludwigshafen am Rhein (DE); Hermann Luyken, Ludwigshafen am Rhein (DE); Thomas Krug, Ludwigshafen am Rhein (DE); Jian Zhong Yi, Ludwigshafen am Rhein (DE); and Johann-Peter Melder, Ludwigshafen am Rhein (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 16/968,140
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Jan. 28, 2019, PCT No. PCT/EP2019/051948
§ 371(c)(1), (2) Date Aug. 6, 2020,
PCT Pub. No. WO2019/154647, PCT Pub. Date Aug. 15, 2019.
Claims priority of application No. 18155331 (EP), filed on Feb. 6, 2018.
Prior Publication US 2021/0363097 A1, Nov. 25, 2021
Int. Cl. C07C 213/04 (2006.01); B01J 8/06 (2006.01); B01J 31/08 (2006.01)
CPC C07C 213/04 (2013.01) [B01J 8/065 (2013.01); B01J 31/08 (2013.01)] 13 Claims
 
1. A process for continuous production of C2-C4-monoalkanolamines by reaction of a corresponding C2-C4-alkylene oxide with a molar excess of ammonia (NH3), wherein aqueous ammonia is employed, in the liquid phase and in the presence of an acidic cation exchanger as catalyst which contains a crosslinked copolymer comprising acidic functional groups as the carrier matrix, wherein the cation exchanger has a total exchange capacity of not less than 1.8 eq/L, is macroporous and the acidic functional groups are sulfonic acid groups.