公开(公告)号：EP2108011A1

公开(公告)日：2009-10-14

申请号：EP08701190.4

申请日：2008-01-02

Applicant: BASF SE

Inventor： WLOKA, Veronika ,  MATTKE, Torsten ,  BREUNINGER, Daniel ,  SIEGERT, Markus

IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50

CPC classification number: C07C209/78 ,  C07C209/84 ,  C07C211/50

Abstract: The subject of the invention is a method for the production of diphenylmethane diamine, comprising the following steps: a) reaction of aniline with formaldehyde in the presence of an acid, b) neutralization of the acid with ammonia, c) separation of the reaction mixture from step b) into an aqueous and an organic phase, d) treatment of the aqueous phase obtained from step c) with an oxide or hydroxide of an alkaline earth metal, e) removal of the ammonia obtained in step d).

公开(公告)号：EP2089370A1

公开(公告)日：2009-08-19

申请号：EP08774263.1

申请日：2008-06-24

Applicant: BASF SE

Inventor： WABNITZ, Tobias ,  BREUNINGER, Daniel ,  HEIMANN, Jens ,  BACKES, Rene ,  PINKOS, Rolf

IPC: C07D307/06 ,  C07D307/08

CPC classification number: C07D307/06 ,  C07D307/08

Abstract: The present invention relates to a method for the synthesis of 2-methyltetrahydrofuran by the one-step hydrogenation of furfural with a hydrogen-containing gas in the presence of at least one support catalyst containing a noble metal of group 8, 9, and/or 10 of the periodic system of elements.

公开(公告)号：EP2051972A1

公开(公告)日：2009-04-29

申请号：EP08761344.4

申请日：2008-06-24

Applicant: BASF SE

Inventor： WABNITZ, Tobias ,  BREUNINGER, Daniel ,  HEIMANN, Jens ,  BACKES, Rene ,  PINKOS, Rolf

IPC: C07D307/06

CPC classification number: C07D307/06

Abstract: The present invention provides a process for preparing 2-methyltetra-hydrofuran by one-stage hydrogenation of furfural with a hydrogen-containing gas in the presence of a structured bed composed of at least one copper catalyst and at least one catalyst which comprises at least one noble metal from groups 8, 9 and/or 10 of the Periodic Table of the Elements on a support material.