公开(公告)号：DE1947193A1

公开(公告)日：1971-04-01

申请号：DE1947193

申请日：1969-09-18

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD DR ,  BECKE FRIEDRICH DR

IPC: A01N43/76 ,  C07D263/44 ,  C07D85/34

公开(公告)号：ES2092187T3

公开(公告)日：1996-11-16

申请号：ES93109841

申请日：1993-06-21

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD DR ,  BERGMANN UDO DR

IPC: C09B67/10 ,  C09B67/54

公开(公告)号：DE59304085D1

公开(公告)日：1996-11-14

申请号：DE59304085

申请日：1993-06-21

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD DR ,  BERGMANN UDO DR

IPC: C09B67/10 ,  C09B67/54

公开(公告)号：DE59204390D1

公开(公告)日：1996-01-04

申请号：DE59204390

申请日：1992-03-24

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD DR

IPC: C09B7/00 ,  C09B7/02 ,  C09B67/14 ,  C09B67/54

公开(公告)号：DE3884277D1

公开(公告)日：1993-10-28

申请号：DE3884277

申请日：1988-05-31

Applicant: BASF AG

Inventor： FIKENTSCHER ROLF DR ,  BRAUN GEROLD DR ,  TSCHANG CHUNG-JI DR ,  VAMVAKARIS CHRISTOS DR ,  KOHLHAUPT REINHOLD DR

IPC: C07C67/00 ,  C07C301/00 ,  C07C311/42 ,  C10M173/00 ,  C10N30/12 ,  C10N40/08 ,  C10N40/22 ,  C11D3/34 ,  C23F11/16

Abstract: Special sulphonamidocarboxylic acids in the form of the alkali metal salts or alkanolamine salts are used as corrosion inhibitors in aqueous systems, to prevent corrosion therein.

公开(公告)号：DE4111827A1

公开(公告)日：1992-10-15

申请号：DE4111827

申请日：1991-04-11

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD DR

IPC: C07C221/00 ,  C07C225/36 ,  C09B1/54

Abstract: The preparation of 1-amino-2-phenoxy-4-hydroxyanthraquinone by reacting 1-amino-2-halo-4-hydroxyanthraquinone with phenol in aqueous suspension at a pH of from 9 to 13 and at a temperature of from 130 to 160 DEG C is carried out by adjusting the pH of a reaction mixture to between 9.5 and 11.5 when the reaction is complete, separating the reaction product from the liquid phase, and purifying 1-amino-2-phenoxy-4-hydroxyanthraquinone, which has been obtained by reacting 1-amino-2-halo-4-hydroxyanthraquinone with phenol, by washing the crude product with alkaline hypochlorite solution.

公开(公告)号：DE4110458A1

公开(公告)日：1992-10-01

申请号：DE4110458

申请日：1991-03-30

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD DR ,  BERGMANN UDO DR ,  HAAS LOTHAR

IPC: C09B7/04

Abstract: The invention concerns a method for the preparation of halogenated indigo by reacting indigo with bromine and/or chlorine, optionally using iodine as a catalyst, characterized in that thionyl chloride is used as the reaction medium.

公开(公告)号：CH632989A5

公开(公告)日：1982-11-15

申请号：CH122578

申请日：1978-02-03

Applicant: BASF AG

Inventor： SCHECKENDIEK WALTER DR ,  HILLER HEINRICH DR ,  KOHLHAUPT REINHOLD DR

IPC: C09B1/22 ,  C07C225/34 ,  C09B1/16 ,  C09B1/20 ,  C07C97/24

公开(公告)号：CH490473A

公开(公告)日：1970-05-15

申请号：CH490473D

申请日：1967-10-26

Applicant: BASF AG

Inventor： SANDER BRUNO DR ,  FUCHS FRIEDRICH DR ,  BECKE FRIEDRICH DR ,  KOHLHAUPT REINHOLD DR

IPC: C07C233/00 ,  D06P1/642 ,  G01N31/00 ,  C09K3/00

公开(公告)号：ES2107483T3

公开(公告)日：1997-12-01

申请号：ES92111596

申请日：1992-07-08

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD DR ,  BIEG WALTER ,  LANG ERNST DR

IPC: C07D209/36 ,  C09B7/02 ,  C09B67/54

Abstract: A process for purifying indigo comprises stripping the as-synthesized aqueous alkaline indoxylate solution before its oxidation to indigo of impurities in the absence of oxygen by distillation or by passing in steam or an inert gas and then treating the indigo precipitated on oxidation of the stripped indoxylate solution with dilute hydrogen peroxide solution.