Uranium (VI) adsorption equilibrium on purolite resin SGA 600 U/3472

• Autorzy: Adriana Botez , Tanase Dobre , Eugenia Panturu , Antoaneta Filcenco-Olteanu
• Języki publikacji: EN

Abstrakty

EN

This paper characterizes uranium (VI) sorption from synthetic solutions using a fixed bed Purolite resin SGA 600 U/3472 system. The effect of the sulphate anion presence in the liquid phase on sorbtion dynamics and equilibrium is analysed. In the industrial processing of solutions obtained from leaching of uranium ore (alkaline/acid), in a continuous system, there are several compounds which strongly compete with uranium for ion exchange sites and consequently these substances depress the uranium adsorption. The influence of vanadate, molybdate, chloride, and nitrate is known, therefore, in this paper, the adsorption equilibrium isotherms for uranium (VI) are obtained for different sulphate ion concentrations in solution. The adsorption capacity variation of the Purolite resin SGA 600U/3472 with the number of adsorption/desorption cycles is also studied. The experimental results reveal the negative impact of high sulphate ion content in solution on the adsorption capacity of the resin Purolite SG 600 U / 3472 with uranium (VI) and therefore it is considered one of the compounds which strongly affect the uranium adsorption.

Słowa kluczowe

EN

Uranium; Sulphate; Adsorption; Ion exchange resin; Loading capacity

• Czasopismo: Open Chemistry
• Rocznik: 2014
• Tom: 12
• Numer: 7
• Strony: 769-773

Daty

wydano

2014-07-01

online

2014-04-30

Twórcy

autor

Adriana Botez

• Research & Development National Institute for Metals and Radioactive Resources — ICPMRR,

autor

Tanase Dobre

• Politehnica University of Bucharest,

autor

Eugenia Panturu

• Research & Development National Institute for Metals and Radioactive Resources — ICPMRR

autor

Antoaneta Filcenco-Olteanu

• Research & Development National Institute for Metals and Radioactive Resources — ICPMRR

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Identyfikatory

DOI

10.2478/s11532-014-0506-6