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1.发明公开METAL POWDERS PRODUCED BY THE REDUCTION OF THE OXIDES WITH GASEOUS MAGNESIUM 有权用于生产金属粉体的氧化物，铌及铌，钽粉还原和生产电容器阳极
公开(公告)号：EP1144147A1
公开(公告)日：2001-10-17
申请号：EP99946575.0
申请日：1999-05-05
发明人： SHEKHTER, Leonid N. , TRIPP, Terrance, B. , LANIN, Leonid, L. , REICHERT, Karlheinz , THOMAS, Oliver , VIEREGGE, Joachim
CPC分类号： B22F9/22 , B22F1/0014 , B22F1/0048 , C22B5/04 , C22B5/12 , C22B34/1268 , C22B34/24 , H01G9/0525
摘要： Metal powder Ta and/or Nb, with or without one or metals from the group Ta, Nb, Ti, Mo, W, V, Zr and Hf, is made in a fine powder form by reduction of metal oxide by contact with a gaseous reducing agent, preferably an alkaline earth metal, to near complete reduction, leaching, further deoxidation and agglomeration, the powder so produced being sinterable to capacitor anode form and processable to other usages.
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2.发明授权TANTAL-PULVER, VERFAHREN ZU SEINER HERSTELLUNG, SOWIE DARAUS ERHÄLTLICHE SINTERANODEN 失效钽粉，用于生产IT和文章可用烧结涂层阳极
公开(公告)号：EP0964936B1
公开(公告)日：2001-10-04
申请号：EP98909422.2
申请日：1998-02-09
CPC分类号： H01G9/0525 , B22F9/20 , C22B34/20 , C22C1/045
摘要： The invention relates a tantalum powder free of alkali and fluorine, which for a relatively small primary particle size has comparatively large secondary particles and is suitable for producing capacitors with a specific charge of between 100,000 and 180,000 νFV/g at specific residual currents of less than 2nA/νFV.
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3.发明公开TANTAL-PULVER, VERFAHREN ZU SEINER HERSTELLUNG, SOWIE DARAUS ERHÄLTLICHE SINTERANODEN 失效钽粉，用于生产IT和文章可用烧结涂层阳极
公开(公告)号：EP0964936A1
公开(公告)日：1999-12-22
申请号：EP98909422.0
申请日：1998-02-09
CPC分类号： H01G9/0525 , B22F9/20 , C22B34/20 , C22C1/045
摘要： The invention relates a tantalum powder free of alkali and fluorine, which for a relatively small primary particle size has comparatively large secondary particles and is suitable for producing capacitors with a specific charge of between 100,000 and 180,000 νFV/g at specific residual currents of less than 2nA/νFV.
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