公开(公告)号：MY136296A

公开(公告)日：2008-09-30

申请号：MYPI20010197

申请日：2001-01-17

Applicant: BASF AG

Inventor： AUER HEINZ ,  BEBLING BERND DR ,  HAMMER HANS ,  HASSE HANS PROF DR ,  SAUER FRIEDRICH ,  VICARI MAXIMILIAN DR ,  WAGNER GERHARD DR ,  ADRIAN TILL DR

IPC: C07C51/56 ,  C07C51/09 ,  C07C51/44 ,  C07C51/48 ,  C07C53/02

Abstract: THE INVENTION RELATES TO A PROCESS FOR OBTAINING ANHYDROUS OR SUBSTANTIALLY ANHYDROUS FORMIC ACID IN WHICH, DURING THE WORK-UP, A COMPOUND OF THE GENERAL FORMULA 1 WHERE THE RADICALS R1 AND R2 ARE ALKYL,CYCLOALKYL, ARYL OR ARALKYL GROUPS, OR R1 AND R2 JOINTLY, TOGETHER WITH THE N ATOM, FROM A HETEROCYCLIC 5-OR 6-MEMBERED RING, AND ONLY ONE OF THE RADICALS IS AN ARYL GROUP, AND WHERE R3 IS HYDROGEN OR A C1-C4-ALKYL GROUP,IS EMPLOYED SIMULTANEOUSLY AS EXTRACTANT FOR FORMIC ACID AND AS ANTIFOAM FOR A DISTILLATION PROCESS.FIG.3

公开(公告)号：MY128445A

公开(公告)日：2007-02-28

申请号：MYPI20010185

申请日：2001-01-16

Applicant: BASF AG

Inventor： AUER HEINZ ,  BEBLING BERND DR ,  HAMMER HANS ,  HASSE HANS PROF DR ,  SAUER FRIEDRICH ,  VICARI MAXIMILIAN DR ,  WAGNER GERHARD DR ,  ADRIAN TILL DR

IPC: B01J14/00 ,  C07C51/56 ,  C07C51/09 ,  C07C51/44 ,  C07C51/48 ,  C07C53/02

Abstract: THE INVENTION RELATES TO A PROCESS FOR THE PREPARATION OF ANHYDROUS OR SUBSTANTIALLY ANHYDROUS FORMIC ACID. THE PROCESS HAS THE SPECIAL FEATURE THAT A LIQUID OF THE GENERAL FORMULA I . WHERE THE RADICALS R AND R2 ARE: ALKYLL CYCLOALKYL, ARYL OR ARALKYL GROUPS, OR R’ AND R2 JOINTLY, TOGETHER WITH THE N ATOM, FORM A HETEROCYCLIC 5- OR 6-MEMBERED RING, AND ONLY ONE OF THE RADICALS IS AN ARY1 GROUP, AND WHERE R3 IS HYDROGEN OR A C1-C4-ALKYL GROUP, EMPLOYED AS EXTRACTANT IS ALSO EMPLOYED AS WASHING LIQUID FOR THE OFFGASES PRODUCED IN THE PROCESS.