公开(公告)号：BG104677A

公开(公告)日：2001-05-31

申请号：BG10467700

申请日：2000-08-07

Applicant: BASF AG

Inventor： MOHRSCHLAND RALF ,  HILDEBRAND VOLKER ,  WARZELHAN VOLKER

IPC: B01D11/04 ,  B01D11/02 ,  C08G69/04 ,  C08G69/28 ,  C08G69/46 ,  B01D11/00

Abstract: The invention relates to a method for extracting polyamide particles or polymer particles which contain polyamides with aqueous extraction agents. According to the invention, aqueous solutions of amino nitriles and optional additional monomers which form polyamides, or oligomers which form polyamides, or mixtures thereof are used as aqueous extraction agents. 7 claims