S. N. Bhattacharyya

Solvent extraction separation of niobium and tantalum

Abstract A review of solvent extraction separation studies of niobium and tantalum, either individually or together from other associated elements, using various solvents, is presented.

Extraction of zirconium(IV) from HCl solutions by mixtures of Aliquat-336 and Alamine-336 with TBP

AbstractSynergism has been observed in the extraction of zirconium(IV) by mixtures of Aliquat 336 or Alamine 336 with a neutral donor TBP from aq. HCl solutions. Although the extractant dependency for Zr(IV) is found to be nearly second power with respect to TBP alone, monosolvate is found to be formed for extraction by its mixture with Aliquat 336 or Almine 336. Quantitative extraction is observed with mixtures at a lower acidity than that with individual extractants. The species formed is tentatively assigned to be Q2ZrCl6. TBP, where

SOLVENT EXTRACTION OF ZIRCONIUM AND HAFNIUM

Q{\mathbf{ }} = {\mathbf{ }}R_3 {\mathbf{ }}\mathop N\limits^ + (CH_3 )

Tracer scale solvent extraction separation of tantalum from niobium using di-(2-ethylhexyl)-phosphoric acid as extractant

for Aliquat 336 and

Determination of gold by neutron activation analysis in some selected rocks and plants and its bearing on the genesis of auriferous quartz veins in Singhbhum district, Bihar, Eastern India

R_3 {\mathbf{ }}\mathop N\limits^ + H

Ion exchange separation of different oxidation states of sulphur formed by35Cl(n, p)35S reaction in alkali halides

for Alamine 336.