公开(公告)号：ZA8803514B

公开(公告)日：1990-01-31

申请号：ZA8803514

申请日：1988-05-18

Applicant: BASF AG

Inventor： GOESELE WILHELM ,  WILHELM GOESELE ,  NONN GUENTHER ,  GUENTHER NONN ,  SCHREINER SIEGFRIED ,  SIEGFRIED SCHREINER ,  SEID BERNHARD ,  BERNHARD SEID ,  THIELE HEINO ,  HEINO THIELE

IPC: B01F7/08 ,  C01B17/66 ,  D06P1/22 ,  D06P1/30 ,  D06P1/673 ,  D21C9/10 ,  C01B

CPC classification number: B01F7/083 ,  C01B17/665

公开(公告)号：MY120067A

公开(公告)日：2005-08-30

申请号：MYPI9900465

申请日：1999-02-10

Applicant: BASF AG

Inventor： MARTIN LEEMANN; ,  VOLKER HILDEBRANDT ,  HEINO THIELE ,  STEFAN EPSIG

IPC: C08G69/00 ,  C08G69/04

Abstract: THE PREPARATION OF POLYAMIDES, THEIR OLIGOMERS OR MIXTURES THEREOF, WHERE APPROPRIATE WITH OTHER REACTION PRODUCTS, TAKES PLACE BY REACTING AMINO NITRILES (A) AND, WHERE APPROPRIATE. OTHER POLYAMIDE-FORMING AMONOMERS AND/OR OLIGOMERS WITH WATER (D) IN A REACTIVE DISTILLATION, WHEREIN THE REACTION PRODUCT (P) IS DISCHARGED FROM THE BOTTOM OF THE REACTIVE DISTILLATION APPARATUS, AND AMMONIA (N) WHICH IS PRODUCED AND. WHERE APPROPRIATE, OTHER LOW MOLECULAR WEIGHT COMPOUNDS WHICH ARE PRODUCED, AND WATER, ARE TAKEN OFF OVERHEAD.(FIG. 1)

公开(公告)号：ZA883514B

公开(公告)日：1990-01-31

申请号：ZA883514

申请日：1988-05-18

Applicant: BASF AG

Inventor： GOESELE WILHELM ,  WILHELM GOESELE ,  NONN GUENTHER ,  GUENTHER NONN ,  SCHREINER SIEGFRIED ,  SIEGFRIED SCHREINER ,  SEID BERNHARD ,  BERNHARD SEID ,  THIELE HEINO ,  HEINO THIELE

IPC: B01F7/08 ,  C01B17/66 ,  D06P1/22 ,  D06P1/30 ,  D06P1/673 ,  D21C9/10 ,  C01B

Abstract: Highly concentrated pumpable hydrosulphite pastes which are free of sediments are prepared from solid and liquid feed materials by continuously mixing and dispersing pulverulent sodium dithionite (2) and an organic liquid (8) inert towards sodium dithionite in an intensive mixer (5) comprising mixing and dispersing elements arranged in steps.