公开(公告)号：EP1802412A1

公开(公告)日：2007-07-04

申请号：EP05788693.9

申请日：2005-09-24

申请人： H.C. Starck GmbH & Co. KG

发明人： HAAS, Helmut ,  BARTMANN, Ulrich ,  SCHNITTER, Christoph ,  DROSTE, Elisabeth

IPC分类号： B22F1/00 ,  B22F9/02 ,  C22B5/04 ,  C22B9/00 ,  C22B34/24 ,  H01G9/00

CPC分类号： H01G9/0525 ,  B22F9/22 ,  B22F2998/10 ,  C22B4/08 ,  C22B5/10 ,  C22B5/14 ,  C22B5/18 ,  C22B34/1209 ,  C22C1/045

摘要： The invention relates to a method for the deoxidisation of valve metal primary powders by means of reducing metals and/or metal hydrides and to a method for the production of tantalum powder which is suitable as an anode material for electrolyte condensators. The invention is particularly characterised in that deoxidisation is carried out in a contact free manner of the valve metal powders which are to be deoxidised with liquid reducing metal/metal hydride.