公开(公告)号：RU2290400C2

公开(公告)日：2006-12-27

申请号：RU2002129001

申请日：2001-03-19

Applicant: BASF AG

Inventor： MJULLER UL RIKH ,  TELES KHOAKIM EHNRIKE ,  RIBER NORBERT ,  VAL KH ANDREAS ,  BASSLER PETER ,  REFINGER ALVIN ,  VENTSEL ANNE ,  KHARDER VOL FGANG

IPC: C07D301/12 ,  B01J8/02 ,  B01J19/00 ,  B01J29/89 ,  B01J29/90 ,  C07D301/19 ,  C07D301/32

公开(公告)号：RU2283308C2

公开(公告)日：2006-09-10

申请号：RU2003110374

申请日：2001-09-11

Applicant: BASF AG

Inventor： MJULLER UL RIKH ,  TELES JOAKHIM EHNRIKE ,  VENTSEL ANNE ,  KHARDER VOL FGANG ,  RUDOL F PETER ,  REFINGER ALVIN ,  BASSLER PETER ,  RIBER NORBERT

IPC: C07D301/12 ,  B01J29/89 ,  B01J29/90

公开(公告)号：RU2214425C2

公开(公告)日：2003-10-20

申请号：RU99106581

申请日：1997-08-26

Applicant: BASF AG

Inventor： VAJS ROBERT ,  KRAUSS DITER ,  KELLER DITER ,  PIPPER GJUNTER ,  KHARDER VOL FGANG ,  LJUDVIG AL FONS ,  MORSHLADT RAL F

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/28 ,  C08G69/46

Abstract: FIELD: polymer production. SUBSTANCE: invention proposes production of polyamide via reaction of at least one aminonitrile with water at molar ratio from 1:1 to 1:30 at 100 to 360 C and pressure from 4 to 30 x 106 Pa followed by heating reaction mixture at temperature from 150 to 400 C and pressure lower than first-step reaction pressure, temperature and pressure being selected such as to allow forming first gas phase and first liquid phase. The former is separated from the latter and the latter is treated with gas or water-containing liquid phase at 150 to 400 C and pressure 0.1 to 30 x 106 Pa to give mixture of products. This mixture is condensed at 200 to 350 C and pressure lower than pressure in preceding step, temperature and pressure being selected such as to allow forming second water- and ammonia-containing gas phase and second liquid or second solid phase, or mixture of the two latter, which in each case contain polyamide. EFFECT: increased content of end carboxyl groups in polyamide and improved workability of product. 16 cl, 3 tbl, 2 ex