SEPARATION OF TANTALUM AND NIOBIUM BY LIQUID-LIQUID EXTRACTION

[1] BURSTALL FH, 1952, J CHEM SOC, V77, P1497

[2] CUVELLIEZ F, 1939, Patent No. 507124

[3] Dijck W.J.D, 1935, U.S. Patent, Patent No. [2, 011,186, 2011186]

[4] THE FRACTIONAL SEPARATION OF ZIRCONIUM AND HAFNIUM BY EXTRACTION WITH THENOYLTRIFLUOROACETONE [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1949, 71 (09) : 3179 - 3182

[5] HUFFMAN EH, 1951, UCRL1165 PUB

[6] KRAUS KA, 1949, J AM CHEM SOC, V71, P5855

[7] KROLL WJ, 1947, Patent No. 2427360

[8] KROLL WJ, 1948, Patent No. 2443254

[9] KYLANDER RL, 1951, CHEM ENG PROG, V47, P186

[10] A NEW SOLVENT EXTRACTION METHOD FOR THE SEPARATION OF NIOBIUM AND TANTALUM [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1952, 74 (06) : 1618 - 1618

[1] BURSTALL FH, 1952, J CHEM SOC, V77, P1497

[2] CUVELLIEZ F, 1939, Patent No. 507124

[3] Dijck W.J.D, 1935, U.S. Patent, Patent No. [2, 011,186, 2011186]

[4] THE FRACTIONAL SEPARATION OF ZIRCONIUM AND HAFNIUM BY EXTRACTION WITH THENOYLTRIFLUOROACETONE [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1949, 71 (09) : 3179 - 3182

[5] HUFFMAN EH, 1951, UCRL1165 PUB

[6] KRAUS KA, 1949, J AM CHEM SOC, V71, P5855

[7] KROLL WJ, 1947, Patent No. 2427360

[8] KROLL WJ, 1948, Patent No. 2443254

[9] KYLANDER RL, 1951, CHEM ENG PROG, V47, P186

[10] A NEW SOLVENT EXTRACTION METHOD FOR THE SEPARATION OF NIOBIUM AND TANTALUM [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1952, 74 (06) : 1618 - 1618