公开(公告)号：DE59905958D1

公开(公告)日：2003-07-17

申请号：DE59905958

申请日：1999-11-25

Applicant: BASF AG

Inventor： RUIDER GUENTHER ,  ROSS KARL-HEINZ

IPC: C07C213/04 ,  C07C213/10 ,  C07C215/08

Abstract: Method of purifying triethanolamine prepared by reacting aqueous ammonia with ethylene oxide in the liquid phase under pressure and at elevated temperature by removing excess ammonia, water and monoethanolamine from the reaction product, reacting the resulting crude product with ethylene oxide at temperatures of from 110 to 180° C., and then rectifying the mixture in the presence of phosphorous or hypophosphorous acid or compounds thereof.

公开(公告)号：DE10011942A1

公开(公告)日：2001-09-13

申请号：DE10011942

申请日：2000-03-11

Applicant: BASF AG

Inventor： RUIDER GUENTHER ,  ROS KARL-HEINZ ,  MELDER JOHANN-PETER ,  SCHULZ GERHARD ,  GUTSCHOVEN FRANK ,  BUSKENS PHILIPP

IPC: C07C213/10 ,  C07C215/08 ,  C07C215/12 ,  C07C215/14

Abstract: Preparation of alkanolamines with improved color quality comprises (a) treating the alkanolamine (I) with an effective amount of phosphorous or hypophosphorous acid or its compounds for not less than 5 minutes at elevated temperature and then (b) distillation in the presence of an effective amount of one of these phosphorus compounds.

公开(公告)号：DE19855383A1

公开(公告)日：2000-06-08

申请号：DE19855383

申请日：1998-12-01

Applicant: BASF AG

Inventor： RUIDER GUENTHER ,  ROS KARL-HEINZ

IPC: C07C213/04 ,  C07C213/10 ,  C07C215/08 ,  C07C215/00

Abstract: The invention relates to a method for purifying triethanolamine which is produced by reacting aqueous ammonia with ethylene oxide in the liquid phase under pressure and at an increased temperature. To this end, excess ammonia, water and monoethanolamine are separated from the reaction product. The thus obtained crude product is reacted with ethylene oxide at temperatures of from 110 to 180 DEG C and is rectified in the presence of phosphorous or hypophosphorous acid or the compounds thereof.

公开(公告)号：AU6142373A

公开(公告)日：1975-04-17

申请号：AU6142373

申请日：1973-10-16

Applicant: BASF AG

Inventor： RUIDER GUENTHER ,  DIMROTH PETER ,  GAENG MANFRED

IPC: C09D7/00 ,  C09B29/20 ,  C09B43/32 ,  C09D7/12 ,  C09D11/00 ,  C09D11/02 ,  D06P1/18

Abstract: Azo pigments of the beta -hydroxynaphthoic acid series containing an o-phenylenediamine and a trimellitic acid imide moiety. These pigments are best illustrated by the formula The pigments are suitable for example for coloring resins, surface coatings and printing inks and give brilliant hues of very good fastness properties.

公开(公告)号：AU5079873A

公开(公告)日：1974-07-11

申请号：AU5079873

申请日：1973-01-05

Applicant: BASF AG

Inventor： DIMROTH PETER ,  RUIDER GUENTHER ,  URTEL ROLF

IPC: C09B29/20 ,  D06P1/44 ,  C09B43/12 ,  C09D3/64 ,  C09D11/10