发明名称 |
ISOLATION AND SEPARATION OF TANTALUM AND NIOBIUM |
摘要 |
<p>Tantalum and niobium are recovered from raw materials contg. both elements by: digestion (fusion) using exclusively HF; sepn. of Ta and Nb from accompanying elements; sepn. of Ta and Nb from each other as fluoro-complexes by solvent extn. of the fusion soln. using methyl isobutyl ketone (MIBK); washing the loaded MIBK with exclusively water. The resultant aq. wash soln. is removed separately from the extn. operation.</p> |
申请公布号 |
JPH07252552(A) |
申请公布日期 |
1995.10.03 |
申请号 |
JP19950043624 |
申请日期 |
1995.02.09 |
申请人 |
H C SUTARUKU GMBH & CO KG |
发明人 |
BARUTAA BURUTOSUSU;YOAHIMU ETSUKERUTO |
分类号 |
C01G33/00;C01G35/00;C22B3/26;C22B34/24;(IPC1-7):C22B34/24 |
主分类号 |
C01G33/00 |
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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