发明公开
- 专利标题: VERFAHREN ZUR HERSTELLUNG VON NIOB- UND TANTALPULVER
- 专利标题(英): Method for the production of niobium and tantalum powder
- 专利标题(中): 用于生产铌和钽粉
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申请号: EP05729735.0申请日: 2005-04-09
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公开(公告)号: EP1753566A1公开(公告)日: 2007-02-21
- 发明人: HAAS, Helmut , BARTMANN, Ulrich , KOMEYA, Tadashi , SATO, Nobuyuki
- 申请人: H.C. Starck GmbH & Co. KG , H.C. Starck Ltd.
- 申请人地址: Im Schleeke 78-91 38642 Goslar DE
- 专利权人: H.C. Starck GmbH & Co. KG,H.C. Starck Ltd.
- 当前专利权人: H.C. Starck GmbH & Co. KG,H.C. Starck Ltd.
- 当前专利权人地址: Im Schleeke 78-91 38642 Goslar DE
- 代理机构: Clauswitz, Kai-Uwe Wolfram
- 优先权: DE102004020052 20040423
- 国际公布: WO2005105346 20051110
- 主分类号: B22F9/22
- IPC分类号: B22F9/22 ; C22B5/12 ; C22B34/24 ; H01G9/042
摘要:
The invention relates to a method for the production of valve metal powders, particularly niobium and tantalum powder, by reduction of corresponding valve metal oxide powders by means of vaporous reducing metals and/or the hydrides thereof, preferably in the presence of an inert carrier gas, wherein the reduction is carried out at a reducing metal/metal hydride vapor partial pressure of the of 5-110 hPa and at a total pressure of less than 1000 hPa, and to a tantalum powder thus produced, with high-stability powder agglomerate particles.
公开/授权文献
- EP1753566B1 VERFAHREN ZUR HERSTELLUNG VON NIOB- UND TANTALPULVER 公开/授权日:2009-07-01
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