Effects of initial concentration and irradiation dose to degradation of di butyl phthalate from phosphoric acid (30 % P2O5)-Reference-Cited by-同舟云学术

Effects of initial concentration and irradiation dose to degradation of di butyl phthalate from phosphoric acid (30 % P2O5)

Published:2018-10-17 Issue:11 Volume:106 Page:909-916
ISSN:2193-3405
Container-title:Radiochimica Acta
language:en
Short-container-title:

Author:

Bounemia Louisa¹²,Mellah Abdelhamid¹

Affiliation:

1. Nuclear Research Centre of Algiers (CRNA) , 02, Boulevard Frantz Fanon, B.P. 399 , Algiers 16000 , Algeria

2. Faculty of Mechanical and Process Engineering USTHB , El-Alia, Algiers , Algeria , Tel.: +213 21 43 44 44, Fax: +213 21 43 42 80

Abstract

Abstract The pretreatment of the phosphoric acid is a stage of utmost importance leading to an optimal recovery of the uranium present in this acid. To this end, the degradation of the organic matter which obstructs considerably this recovery was tested by γ irradiation. This study lies within the scope of the radiation/matter interaction; concerning the use of the γ irradiator as proceed of phosphoric acid purification by the degradation of di butyl phthalate (DBP). Studies of the interaction of γ radiation with phosphoric acid solutions polluted by an organic matter concern the study of the influence of some parameters such as: dose rate (0.5–35 kGy), initial concentration (50–500 mg/L) of the pollutant, pH and % in P2O5 on the degradation of organic matter by γ irradiation. The reactions followed pseudo first order kinetics for different initial concentrations. The results made it possible to say that the degradation of di butyl phthalate by γ irradiation is dependent on the amount of the concentration of DBP and pH. The G-values decreased with absorbed doses, and increased with higher initial concentrations.Purification of phosphoric acid by γ radiation does not degrade the quality of this acid.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/ract-2018-2984/pdf

Reference24 articles.

1. Hanna, A. A., Ali, A. F.: Removal of organic matter from crude wet-process phosphoric acid. J. Chem. Technol. Biotechnol. 55(3), 205 (1992).

2. Baudu, M., Guibaud, G., Raveau, D., Lafrance, P.: Prevision de l’adsorption de molecules organiques en solution aqueuse en fonctions de quelques caracteristiques physicochimiques de charbons actifs. Water Qual. Res. J. 36(4), 631 (2001).10.2166/wqrj.2001.034

3. Silem, A., Boualia, A., Mellah, A., Kada, R.: Quantitative and qualitative analysis of organic matter contained in industrial phosphoric acid. Can. J. Appl. Spectrosc. 36(4), 94 (1991).

4. Mellah, A., Silem, A., Boualia, A., Kada, R.: Adsorption of organic matter from a wet phosphoric acid using activated carbon: equilibrium study. Chem. Eng. Process. 31, 191 (1991).

5. Debaene, J.: GénieNucléaire. Technique de l’ingénieur J 21, Paris (1998).

Cited by 1 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Characterization of crude and calcined phosphates of Kef Essennoun (Djebel Onk, Algeria);Journal of Thermal Analysis and Calorimetry;2020-09-15