公开(公告)号：DE502005010616D1

公开(公告)日：2011-01-13

申请号：DE502005010616

申请日：2005-01-18

Applicant: BASF SE

Inventor： URBAN DIETER ,  SCHWALM REINHOLD ,  KIRSCH STEFAN ,  EXNER KAI MICHAEL ,  CENTNER ALEXANDER

IPC: C07C69/54 ,  C07C67/08 ,  C07C67/26 ,  C07C69/732 ,  C07C233/20 ,  C08L33/00

公开(公告)号：AT425951T

公开(公告)日：2009-04-15

申请号：AT03769425

申请日：2003-10-21

Applicant: BASF SE

Inventor： PASTRE JIRG ,  EXNER KAI MICHAEL ,  ST ER WOLFRAM ,  GEISSLER ELKE ,  MACHHAMMER OTTO

IPC: C07C51/54 ,  C07C51/09 ,  C07C51/56 ,  C07C53/02 ,  C07C53/122 ,  C07C53/124 ,  C07C63/313 ,  C07C67/10

Abstract: Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).

公开(公告)号：DE502004011181D1

公开(公告)日：2010-07-01

申请号：DE502004011181

申请日：2004-07-07

Applicant: BASF SE

Inventor： DANIEL THOMAS ,  RIEGEL ULRICH ,  ELLIOT MARK ,  VON OEHSEN UBBO ,  EXNER KAI MICHAEL ,  MASSONNE KLEMENS

IPC: C08F8/30 ,  A61L15/60 ,  C08J3/24 ,  C08L101/14

公开(公告)号：DE502004011432D1

公开(公告)日：2010-09-02

申请号：DE502004011432

申请日：2004-12-14

Applicant: BASF SE

Inventor： SZARVAS LASZLO ,  MASSONNE KLEMENS ,  LAAS HARALD ,  EXNER KAI MICHAEL ,  GLAS DETLEV

IPC: C07F9/54

公开(公告)号：DE50311316D1

公开(公告)日：2009-04-30

申请号：DE50311316

申请日：2003-10-21

Applicant: BASF SE

Inventor： PASTRE JOERG ,  EXNER KAI MICHAEL ,  STUEER WOLFRAM ,  GEISSLER ELKE ,  MACHHAMMER OTTO

IPC: C07C51/54 ,  C07C51/09 ,  C07C51/56 ,  C07C53/02 ,  C07C53/12 ,  C07C53/122 ,  C07C53/124 ,  C07C63/313 ,  C07C67/10 ,  C07C69/14

Abstract: Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).