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.

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：US10414716B2

公开(公告)日：2019-09-17

申请号：US15534856

申请日：2015-12-01

Applicant: BASF SE

Inventor： Christof Wilhelm Wigbers ,  Wolfgang Mägerlein ,  Thomas Krug ,  Johann-Peter Melder

IPC: B01J21/04 ,  B01J21/06 ,  B01J23/04 ,  B01J23/14 ,  B01J23/28 ,  B01J23/72 ,  B01J23/75 ,  C08G65/26 ,  B01J23/755 ,  C07C213/02

Abstract: A process for producing a polyetheramine by reacting a polyether alcohol, previously synthesized in the presence of a basic potassium or sodium compound as catalyst, with ammonia in the presence of hydrogen and a catalyst in one reactor or a plurality of reactors, wherein the employed polyether alcohol when previously synthesized in the presence of a basic potassium compound as catalyst has a content of potassium ions of less than 50 wppm and when previously synthesized in the presence of a basic sodium compound as catalyst has a content of sodium ions of less than 50 wppm.

公开(公告)号：US09981904B2

公开(公告)日：2018-05-29

申请号：US15505803

申请日：2015-08-25

Applicant: BASF SE

Inventor： Christof Wilhelm Wigbers ,  Wolfgang Maegerlein ,  Thomas Krug ,  Johann-Peter Melder ,  Thomas Heidemann ,  Bernd Stein

IPC: C07C209/48 ,  B01J23/75 ,  B01J37/18 ,  B01J35/00 ,  B01J23/78

CPC classification number: C07C209/48 ,  B01J23/75 ,  B01J23/78 ,  B01J35/0006 ,  B01J35/002 ,  B01J37/18 ,  C07C2523/75 ,  Y02P20/582 ,  C07C211/11 ,  C07C211/09 ,  C07C211/12 ,  C07C211/18

Abstract: The invention relates to a process for preparing primary amines, which comprises hydrogenating at least one nitrile in an apparatus (V1) in the presence of an unsupported cobalt catalyst to obtain at least one primary amine, with recurrent or continuous addition of at least one compound (I) to the apparatus (V1), said compound (I) comprising at least one component selected from alkali metal, alkaline earth metal and rare earth metal.

公开(公告)号：US11753364B2

公开(公告)日：2023-09-12

申请号：US16968140

申请日：2019-01-28

Applicant: BASF SE

Inventor： Christian Gruenanger ,  Gabriele Iffland ,  Zeljko Kotanjac ,  Hermann Luyken ,  Thomas Krug ,  Jian Zhong Yi ,  Johann-Peter Melder

IPC: C07C213/04 ,  B01J8/06 ,  B01J31/08

CPC classification number: C07C213/04 ,  B01J8/065 ,  B01J31/08

Abstract: 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.

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).