公开(公告)号：US20230017999A1

公开(公告)日：2023-01-19

申请号：US17781405

申请日：2020-11-23

Applicant: BASF SE

Inventor： Jaroslaw Michael MORMUL ,  Dieter KOLASSA ,  Dominic RIEDEL ,  Joaquim Henrique TELES ,  Ansgar Gereon ALTENHOFF ,  Richard DEHN ,  Peter OECHSLE

IPC: C07C209/84

Abstract: The present invention relates to a process for purification of a mixture comprising water, N-alkyl-hydroxylammonium salts and some byproducts wherein from the mixture water and byproducts are distilled off until the purity of N-alkyl-hydroxylammonium salts in the residue is 95% or higher and additionally keeping the water content during and after the distillation ≥40 wt.-% according to the residue.

公开(公告)号：US20230025575A1

公开(公告)日：2023-01-26

申请号：US17781928

申请日：2020-11-24

Applicant: BASF SE

Inventor： Martin ERNST ,  Ansgar Gereon ALTENHOF ,  Hermann LUYKEN ,  Tatjana HUBER ,  Sebastian HAUPT ,  Dieter KOLASSA

IPC: C07C209/60 ,  B01J23/72 ,  B01J23/10 ,  B01J23/89 ,  B01J21/04

Abstract: A process for preparing an amine by reacting an aldehyde and/or ketone with a nitrogen compound selected from the group consisting of ammonia and primary and secondary amines, and subsequent hydrogenation of the resulting reaction product in the liquid phase and in the presence of hydrogen and a heterogeneous copper oxide hydrogenation catalyst at a temperature of 20 to 230° C., wherein the aldehyde and/or ketone is reacted with the nitrogen compound either together with the hydrogenation in the liquid phase and in the presence of the hydrogen and of the catalyst (alternative 1) or in a step preceding the hydrogenation (alternative 2), and wherein the catalytically active composition of the catalyst, prior to reduction thereof with hydrogen, comprises at least 24% by weight of oxygen compounds of copper, calculated as Cu.