发明名称 |
VENTILMETALLOXID-PULVER UND VERFAHREN ZU DEREN HERSTELLUNG |
摘要 |
A process for the production of a valve metal oxide powder, in particular an Nb2O5 or Ta2O5 powder by continuous reaction of a fluoride-containing valve metal compound with a base in the presence of water and calcination of the resultant product, wherein the reaction is performed in just one reaction vessel and at a temperature of at least 45° C. Valve metal oxide powders obtainable in said manner which exhibit a spherical morphology, a D50 value of 10 to 80μm and an elevated BET surface area. |
申请公布号 |
DE502004009326(D1) |
申请公布日期 |
2009.05.20 |
申请号 |
DE20045009326T |
申请日期 |
2004.08.31 |
申请人 |
H.C. STARCK GMBH |
发明人 |
BECK, KARSTEN;SEYEDA, HADY;LERCH, KLAUS;BALAN, BIANCA AGNES |
分类号 |
C01G1/02;C01G33/00;C01G35/00 |
主分类号 |
C01G1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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