公开(公告)号：DE10353014A1

公开(公告)日：2004-06-24

申请号：DE10353014

申请日：2003-11-13

Applicant: BASF AG

Inventor： SCHLIEPHAKE VOLKER ,  HAMMON ULRICH ,  LANG ERNST ,  KRUEGER CARL-LUDWIG ,  SCHROEDER JUERGEN ,  MUELLER-ENGEL KLAUS JOACHIM

IPC: C07C51/25 ,  C07C253/26 ,  C07C255/08 ,  C07B41/00 ,  C07B41/08 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055 ,  C07B43/00 ,  C07C249/04 ,  C07C253/30 ,  C07C255/19 ,  C07C51/235

Abstract: Organic compound(s) is prepared by heterogeneously catalyzed partial gas-phase oxidizing of organic precursor compound(s) in a reactor loaded with catalyst, and bringing portion of components of the reaction gas starting mixture from low initial pressure to higher final pressure using a compressor. The compressor used is a radial compressor.

公开(公告)号：BR0305942A

公开(公告)日：2004-12-21

申请号：BR0305942

申请日：2003-12-08

Applicant: BASF AG

Inventor： VOLKER-SCHLIEPHAKE ,  HAMMON ULRICH ,  LANG ERNST ,  GER CARL-LUDWIG KR ,  DER J RGEN SCHR ,  LLER-ENGEL KLAUS JOACHIM M

IPC: C07C51/25 ,  C07C253/26 ,  C07C255/08 ,  C07B41/00 ,  C07B43/00 ,  C07C45/35 ,  C07C51/215 ,  C07C253/24

Abstract: Organic compound(s) is prepared by heterogeneously catalyzed partial gas-phase oxidizing of organic precursor compound(s) in a reactor loaded with catalyst, and bringing portion of components of the reaction gas starting mixture from low initial pressure to higher final pressure using a compressor. The compressor used is a radial compressor.

公开(公告)号：BR9202583A

公开(公告)日：1993-03-16

申请号：BR9202583

申请日：1992-07-10

Applicant: BASF AG

Inventor： KOHLHAUPT REINHOLD ,  BIEG WALTER ,  LANG ERNST

IPC: C07D209/36 ,  C09B7/02 ,  C09B67/54 ,  C09B7/00

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.