Liquid-liquid extraction of Zr(IV) from sulphuric acid medium using tri-n-octyl amine in kerosene

Abstract

The extraction behavior of Zr(IV) with tri-n-octyl amine (TOA) in kerosene was studied through a new method of solvent extraction. The mechanism of extraction and the species extracted were identified. Quantitative extraction of Zr(IV) with TOA in kerosene was studied by changing different parameters such as acid variation, diluent effect, metal concentration variation, extractant variation, effect of salting out reagent concentration and effect of temperature. It was observed that the percentage of extraction of Zr(IV) increased when the concentration of TOA and the percentage of extraction also increased when the metal ion concentration increased. The percentage of Zr(IV) became 97.4% with 0.1 M TOA from 3.0 M sulphuric acid. Kerosene was found to be effective diluent for the extraction of Zr(IV) with TOA.

Liquid-Liquid Extraction of Zr(IV) from Sulphuric Acid Medium using Cyanex 923 in Kerosene

“…The percentage of extraction increased from 23.19% to 59.83% with the increase in metal ion concentration up to 0.0005M and thereafter remains constant. The detail data showed in (table 3. using TOA in kerosene was found to be exothermic as reported by Swain et al [19].…”

“…Liquid -liquid extraction of Zr(IV) from low acidic chloride solution using LIX 84 -IC was investigated by Reddy et al [18]. The percentage of extraction of Zr(IV) was found to be about 97.4% from sulphuric acid medium using tri-noctyl amine in kerosene as reported by Swain et al [19]. The extraction of Zr(IV) from acidic chloride medium by binary mixture Cyanex 923 and TOA using kerosene as diluent was studied by Bhatta et al [20].…”