Analytical Separation of Rhenium and Molybdenum by Ion Exchange

Recovery of Rhenium and Molybdenum from Molybdenite Roasting Dust Leaching Solution by Ion Exchange Resins

“…In case of Purolite A-170 resin, the absorption efficiency of Re and Mo were about 90 and 20% at E. pH 0, contact time 40 min, Solid liquid ratio 40 g/m 3 , 298 K, whereas the absorption efficiency of Re and Mo were about 90 and 0%, respectively using Purolite A-172 resin. Although the adsorption performance for both type of resins found to be similar with respect to adsorption metal Re, however, Purolite A-172 was found to be effective for selective adsorption of Re.…”

“…Among the eluting reagents, NH 4 OH showed a best reagent for quantitative elution of Re. Elution amount of 100.6 mg/dm 3 Re and 5 mg/dm 3 Mo obtained using 1 to 5 mol/dm 3 NH 4 OH. On the other hand, the elution amount of Re and Mo were obtained to be 50 and 1 mg/dm 3 , respectively, for the case of Purolite A-172.…”

“…Elution amount of 100.6 mg/dm 3 Re and 5 mg/dm 3 Mo obtained using 1 to 5 mol/dm 3 NH 4 OH. On the other hand, the elution amount of Re and Mo were obtained to be 50 and 1 mg/dm 3 , respectively, for the case of Purolite A-172. Among the both of the resins, the overall the adsorption behaviour of Purolite A-172 was found to be significant in terms of the selective as well as effective separation of Re from the molybdenite dust leach solution.…”

“…After precipitating the major amount of molybdenum from molybdenite dust leaching solution, the remaining filtrate containing 109 mg/dm 3 Re, 63 mg/dm 3 Mo, 16 mg/dm 3 Cu and 3.1 mg/dm 3 Ca was used for adsorption of Re by ion exchange resins.…”

“…Prior to the elution study the metal loaded resin was washed with deionized water and dried. A desired quantity of loaded resin was treated with the specific reagents in a 50 cm 3 conical flask for elution of the respective metal ions from the resin phase.…”