Recovery and sepn of tantalum and niobium from materials contg. both
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
DE4404374(C1)
申请公布日期
1995.05.18
申请号
DE19944404374
申请日期
1994.02.11
申请人
H.C. STARCK GMBH & CO KG, 38642 GOSLAR, DE
发明人
BLUDSUS, WALTER, DIPL.-CHEM. DR., 38667 BAD HARZBURG, DE;ECKERT, JOACHIM, DIPL.-CHEM. DR., 38667 BAD HARZBURG, DE
