公开(公告)号：EP2114860B1

公开(公告)日：2010-09-29

申请号：EP08709227.6

申请日：2008-02-27

Applicant: BASF SE

Inventor： DAHMEN, Kirsten ,  OFTRING, Alfred ,  BAUMANN, Katrin ,  HUGO, Randolf ,  HAHN, Thilo ,  MELDER, Johann-Peter

IPC: C07C209/48 ,  C07C255/25 ,  C07C211/10 ,  C07C211/13 ,  C07C211/14

CPC classification number: C07C209/48 ,  C07C211/10 ,  C07C211/13 ,  C07C211/14 ,  C07C253/30 ,  C07C255/25

公开(公告)号：EP2132163A1

公开(公告)日：2009-12-16

申请号：EP08717206.0

申请日：2008-02-28

Applicant: BASF SE

Inventor： DAHMEN, Kirsten ,  OFTRING, Alfred ,  HUGO, Randolf ,  HAHN, Thilo ,  BAUMANN, Katrin ,  MELDER, Johann-Peter

IPC: C07C209/48 ,  C07C211/10

CPC classification number: C07C209/48 ,  C07C211/10

Abstract: The invention relates to a method for producing an ethyleneamine mixture, comprising the following steps: a) untreated AAN, which is substantially devoid of formaldehyde cyanohydrin (FACH), is heated to a temperature of between 50 and 150°C to obtain an aminonitrile mixture containing amino acetonitrile (AAN) and between 5 and 70 % by weight of iminodiacetonitrile (IDAN); b) the aminonitrile mixture obtained in step a) is hydrogenated in the presence of a catalyst. Ethylenediamine (EDA) and/or diethylenetriamine (DETA) and optionally other ethyleneamines can be isolated from the ethyleneamine mixtures thus obtained.

公开(公告)号：EP2536680B1

公开(公告)日：2015-09-02

申请号：EP11702838.1

申请日：2011-02-10

Applicant: BASF SE

Inventor： BAUMANN, Robert ,  BIEL, Markus Christian ,  DECKERS, Andreas ,  OFTRING, Alfred ,  RITTIG, Frank ,  STAFFEL, Wolfgang

IPC: C07C51/295 ,  C07C51/235 ,  C07C59/305 ,  C07C227/02

CPC classification number: C07C51/235 ,  C07C51/295 ,  C07C59/305

公开(公告)号：EP2697190B1

公开(公告)日：2015-05-13

申请号：EP12708334.3

申请日：2012-03-13

Applicant: BASF SE

Inventor： BAUMANN, Robert ,  BIEL, Markus, Christian ,  FRANZKE, Axel ,  HEIDENFELDER, Thomas ,  KLINGELHOEFER, Paul ,  OFTRING, Alfred

IPC: C07C227/18 ,  C07C229/12

CPC classification number: C07C227/18 ,  C07C227/02 ,  C07C229/12 ,  C07C229/16

公开(公告)号：EP2443088B1

公开(公告)日：2013-08-14

申请号：EP10725162.1

申请日：2010-06-14

Applicant: BASF SE

Inventor： HUGO, Randolf ,  MELDER, Johann-Peter ,  BAUMANN, Robert ,  OFTRING, Alfred ,  BUSCHHAUS, Boris ,  BRASCHE, Gordon ,  AHRENS, Sebastian ,  PFAB, Peter

IPC: C07D207/327 ,  C07C211/14

CPC classification number: C07D207/327 ,  C07C211/14

公开(公告)号：EP2129651B1

公开(公告)日：2013-04-10

申请号：EP08717210.2

申请日：2008-02-28

Applicant: BASF SE

Inventor： DAHMEN, Kirsten ,  OFTRING, Alfred ,  BAUMANN, Katrin ,  HUGO, Randolf ,  HAHN, Thilo ,  MELDER, Johann-Peter

IPC: C07C211/14 ,  C07C209/48 ,  C07C253/00 ,  C07D295/13

CPC classification number: C07D295/13

公开(公告)号：EP2547648A1

公开(公告)日：2013-01-23

申请号：EP11710452.1

申请日：2011-03-15

Applicant: BASF SE

Inventor： BAUMANN, Robert ,  BIEL, Markus Christian ,  BRASCHE, Gordon ,  FRANZKE, Axel ,  HEIDENFELDER, Thomas ,  KLINGELHOEFER, Paul ,  OFTRING, Alfred ,  SCHRÖTER, Marie Katrin

IPC: C07C227/02 ,  C07C229/02

CPC classification number: C07C227/18 ,  C07C229/16 ,  C07C229/24

Abstract: The present invention relates to a method for producing aminocarboxylates starting from amines using a reaction sequence of ethoxylation to form amino alcohols and subsequent oxidative dehydrogenation to form the corresponding aminocarboxylates, in particular the alkali or alkaline earth salts of the complexing agents MGDA (methylglycinediacetic acid), EDTA (ethylenediaminetetraacetic acid) and GLDA (glutamic acid diacetic acid) or the free acids thereof.

公开(公告)号：EP2114857B1

公开(公告)日：2013-01-09

申请号：EP08717152.6

申请日：2008-02-27

Applicant: BASF SE

Inventor： DAHMEN, Kirsten ,  OFTRING, Alfred ,  HUGO, Randolf ,  HAHN, Thilo ,  BAUMANN, Katrin ,  MELDER, Johann-Peter

IPC: C07C209/48 ,  C07C211/14 ,  C07C255/25

CPC classification number: C07C209/48 ,  C07C255/25 ,  C07C211/14

公开(公告)号：EP2114861B1

公开(公告)日：2012-09-05

申请号：EP08709228.4

申请日：2008-02-27

Applicant: BASF SE

Inventor： DAHMEN, Kirsten ,  OFTRING, Alfred ,  HUGO, Randolf ,  BAUMANN, Katrin ,  HAHN, Thilo ,  MELDER, Johann-Peter

IPC: C07C209/48 ,  C07C211/14 ,  C07C255/25

CPC classification number: C07C209/48 ,  C07C211/14

公开(公告)号：EP1881957B1

公开(公告)日：2011-08-17

申请号：EP06743390.4

申请日：2006-05-02

Applicant: BASF SE

Inventor： OFTRING, Alfred ,  BRAUN, Gerold ,  WIRSING, Friedrich ,  STAMM, Armin ,  BALDENIUS, Kai-Uwe

IPC: C07C227/26 ,  C07C229/16

CPC classification number: C07C227/26 ,  C07C229/16

Abstract: The invention relates to a method for producing a light-coloured methylglycine-N,N-diethanoic acid trialkali metal salt with a low by-product content, by the alkaline hydrolysis of methylglycine diacetonitrile, said method comprises steps that are carried out in the order (a) to (f): (a) mixing of the methylglycine diacetonitrile with an aqueous alkali lye at a temperature of = 30 °C; (b) the aqueous alkali methylglycine diacetonitrile suspension is then reacted at a temperature ranging between 10 and 30 °C for a period of 0.1 to 10 h, to form a solution; (c) the solution obtained in step (b) is then reacted at a temperature ranging between 30 to 40 °C for a period of 0.1 to 10 h; (d) optionally the solution obtained in step (c) is reacted at a temperature ranging between 50 and 80 °C for a period of between 0.5 and 2 h; (e) optionally the solution obtained in step (c) or (d) is reacted at a temperature ranging between 110 and 200 °C for a period of between 5 and 60 min; (f) hydrolysis and isolation of ammonia from the solution obtained in step (c), (d) or (e) by stripping at a temperature of between 90 and 105 °C.