Naslov
Solvent Extraction of Zirconium and Hafnium with some Trifunctional Phosphine Oxides

Autori
Bronzan, Pavica ; Meider-Goričan, Henrika

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings - International Solvent Extraction Conference - 1974 / Jeffreys, G. V. - London : Delhi : Society of Chemical Industry, London, 1974, 2235-2247

Skup
The International Solvent Extraction Conference - I.S.E.C. 74

Mjesto i datum
Lion-sur-Mer, Francuska, 08.09.1974. - 14.09.1974

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
solvent extraction; zirconium; hafnium; phosphine oxides; trifunctional ligands

Sažetak
The extraction of zirconium and hafnium from hydrochloric, perchloric and sulphuric acid solutions with [(C_6H_5)_2P(O)CH_2]_2P(O)C_6H_5 (L1), [(C_6H_5)_2P(O)CH_2]_2P(O)OC_2H_5 (L2) and [(C_6H_5)_2P(O)CH_2]_2P(O)OH (L3) has been studied. The properties of the ligands and the formation of the complexes with zirconium and hafnium as well as with perchloric acid have been investigated. The influence of the electronegativity of the substituent, bound to the central phosphorus atom, on the extraction of zirconium and hafnium has been discussed. From alcoholic solutions of metal tetrachlorides adducts with the phosphine oxides corresponding to the formula MeCl_4.L(n) (Me = Zr or Hf ; L(n) = ligand) have been isolated and characterized.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA