发明授权
US3545922A Process for the preparation of finely divided,non-pyrophoric nitrides of zirconium,hafnium,niobium and tantalum
失效
制备精细分离的ZIRCONIUM,HAFNIUM,NIOBIUM和TANTALUM的非磷酸亚胺的方法
- 专利标题: Process for the preparation of finely divided,non-pyrophoric nitrides of zirconium,hafnium,niobium and tantalum
- 专利标题(中): 制备精细分离的ZIRCONIUM,HAFNIUM,NIOBIUM和TANTALUM的非磷酸亚胺的方法
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申请号: US3545922D申请日: 1967-11-24
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公开(公告)号: US3545922A公开(公告)日: 1970-12-08
- 发明人: NEUENSCHWANDER ERNST , SCHUETT KLAUS , SCHELLER WALTER
- 申请人: STARCK HERMANN C FA
- 专利权人: Starck Hermann C Fa
- 当前专利权人: Starck Hermann C Fa
- 优先权: CH1599964 1964-12-10; US51118265 1965-12-02
- 主分类号: C01B21/06
- IPC分类号: C01B21/06 ; C01B21/076 ; C22B61/02
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