公开(公告)号：DE3009603A1

公开(公告)日：1981-10-01

申请号：DE3009603

申请日：1980-03-13

Applicant: BASF AG

Inventor： GRASER FRITZ DIPL CHEM DR ,  WICKENHAEUSER GERHARD DIPL ING

IPC: C09B67/06 ,  F26B7/00 ,  C09B67/00

Abstract: A process for drying finely divided pigments contained in a press cake or a suspension, wherein a mixture of the pigment and a liquid whose critical temperature is below the decomposition temperature of the pigment is heated under pressure to above the critical temperature of the liquid and is then released while keeping the temperature above the dew line of the liquid. The process gives fine pigments powders which are easily dispersible in the media in which pigments are used, and which produce deep, brilliant colorations.

公开(公告)号：DE3009602A1

公开(公告)日：1981-10-01

申请号：DE3009602

申请日：1980-03-13

Applicant: BASF AG

Inventor： GRASER FRITZ DIPL CHEM DR ,  WICKENHAEUSER GERHARD DIPL ING

IPC: C09B67/02 ,  C09B67/10 ,  C09B67/54 ,  C09B67/48 ,  C09B67/50

公开(公告)号：DE2932712A1

公开(公告)日：1981-03-26

申请号：DE2932712

申请日：1979-08-13

Applicant: BASF AG

Inventor： HUPFER LEOPOLD DIPL CHEM DR ,  GRAF FRITZ DIPL CHEM DR ,  EBERHARD PETER DIPL CHEM DR ,  WICKENHAEUSER GERHARD DIPL ING ,  SCHLUETER LOTHAR DIPL ING DR

IPC: C07D233/58 ,  C07D233/54