公开(公告)号：US12162842B2

公开(公告)日：2024-12-10

申请号：US17617335

申请日：2020-06-02

Applicant: BASF SE

Inventor： Martin Ernst ,  Tatjana Huber ,  Johann-Peter Melder ,  Stephanie Jaegli ,  Thomas Krug

IPC: C07C29/154 ,  C07C209/16 ,  C07C209/26 ,  C07C209/62 ,  C07C209/84 ,  C07C213/02 ,  C07C213/04 ,  C07C213/08 ,  C07C213/10 ,  C07D251/04

Abstract: A process for the conversion of glycolaldehyde with an aminating agent in the presence of hydrogen and of a catalyst in a glycolaldehyde conversion reactor, wherein one or more organic carboxylic acids are fed into the glycolaldehyde conversion reactor.

公开(公告)号：US09695121B2

公开(公告)日：2017-07-04

申请号：US14764010

申请日：2014-01-27

Applicant: BASF SE

Inventor： Stephanie Jaegli ,  Thomas Schmidt ,  Alfred Oftring ,  Alexander Panchenko ,  Kirsten Dahmen ,  Oliver Molt

IPC: C07D211/26 ,  C07D211/60

CPC classification number: C07D211/26 ,  C07D211/60

Abstract: The present invention relates to 2,6-bis(aminomethyl)piperidine derivatives as such (in the following text abbreviated to “2,6-BAMP derivatives”) which are defined by the general formula (I) shown in the following text. In addition, the present invention relates to a process for preparing such 2,6-BAMP derivatives by hydrogenation of the corresponding 2,6-dicyanopiperidine derivatives (hereinafter abbreviated to “2,6-DCP derivatives”) in the presence of a catalyst. The present invention further provides for the use of the 2,6-BAMP derivatives of the invention as hardeners for epoxy resins, as intermediate in the preparation of diisocyanates, which play an important role in the production of polyurethanes, as starters in the preparation of polyetherols and/or as monomers for polyamide production. The present invention further relates to the diisocyanates as such prepared from the 2,6-BAMP derivatives and also the corresponding preparative process.

公开(公告)号：US10995057B2

公开(公告)日：2021-05-04

申请号：US16323578

申请日：2017-09-01

Applicant: BASF SE

Inventor： Christian Eidamshaus ,  Thomas Krug ,  Johann-Peter Melder ,  Joerg Pastre ,  Regine Helga Bebensee ,  Stephanie Jaegli

IPC: C07C209/48 ,  C07C213/02 ,  B01J23/46 ,  B01J21/06 ,  C07C211/03 ,  C07C211/14 ,  C07C217/08

Abstract: The present invention relates to a process for hydrogenating nitriles with hydrogen in the presence of a ZrO2-supported ruthenium catalyst.

公开(公告)号：US09914693B2

公开(公告)日：2018-03-13

申请号：US14771409

申请日：2014-02-12

Applicant: BASF SE

Inventor： Hermann Luyken ,  Stephanie Jaegli ,  Michael Lorenz ,  Gordon Brasche ,  Markus Jegelka ,  Barbara Becker ,  Robert Baumann ,  Johann-Peter Melder ,  Boris Buschhaus ,  Thomas Krug

IPC: C07C209/48 ,  C07C253/00 ,  C07C253/30 ,  C07C209/86 ,  C07C253/08

CPC classification number: C07C209/48 ,  C07C209/86 ,  C07C253/00 ,  C07C253/08 ,  C07C253/30 ,  C07C255/12 ,  C07C255/25 ,  C07C211/10

Abstract: The present invention relates to a process for preparing ethylenediamine (EDA), where the process comprises the steps a) to c). In step a), formaldehyde is reacted with hydrocyanic acid (HCN) to form formaldehyde cyanohydrin (FACH), where the hydrocyanic acid is completely free or largely free of sulfur dioxide (SO2). The FACH prepared in this way is reacted with ammonia (NH3) to form aminoacetonitrile (AAN) in step b), whereupon a hydrogenation of AAN in the presence of a catalyst to form EDA is carried out in step c).

公开(公告)号：US09828329B2

公开(公告)日：2017-11-28

申请号：US15125850

申请日：2015-03-11

Applicant: BASF SE

Inventor： Hermann Luyken ,  Stephanie Jaegli ,  Michael Lorenz ,  Gordon Brasche ,  Markus Jegelka ,  Barbara Becker ,  Robert Baumann ,  Johann-Peter Melder ,  Boris Buschhaus ,  Thomas Krug

IPC: C07C209/84

CPC classification number: C07C209/84 ,  C07C209/16 ,  C07C209/48 ,  C07C213/04 ,  C07C253/08 ,  C07C253/30 ,  C07C211/10 ,  C07C255/16 ,  C07C255/25 ,  C07C215/08

Abstract: The present invention relates to a process for purifying ethylenediamine (EDA) by distillation, wherein the process comprises the steps a) and b). In step a), a mixture (G1) comprising water, EDA and N-methylethylenediamine (N-MeEDA) is fed into a distillation apparatus (D1), and the major part of the water comprised in the mixture (G1) is separated off overhead at a pressure of greater than 4.8 bara. From the bottom of (D1), the water-enriched mixture (G2) is fed into a distillation apparatus (D2) in step b). At the top of (D2), the major part of the N-MeEDA is distilled off. The stream (S3) obtained from the bottom of (D2) comprises EDA, with the components water and N-MeEDA comprised in the mixture (G1) having been largely or completely removed. Further distillation steps can optionally be carried out in order to obtain pure EDA, for example when diethylenetriamine (DETA) is additionally comprised in the mixture (G1). If ammonia is additionally comprised in the mixture (G1), an ammonia removal is preferably additionally carried out before carrying out the step a) in the process of the invention.