Extraction of phenol from water by primary amine primene JMT

Qingjie Wang; Yanchun Shi; Deling Yang; Pengge Ning

Emerging Contaminants (Jan 2022)

Extraction of phenol from water by primary amine primene JMT

Qingjie Wang,
Yanchun Shi,
Deling Yang,
Pengge Ning

Affiliations

Qingjie Wang: Research Beijing Engineering Research Centre of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Science, Beijing, 100190, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, No.18, Shuangqing Road, Beijing, 100085, China
Yanchun Shi: Research Beijing Engineering Research Centre of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Science, Beijing, 100190, China
Deling Yang: Research Beijing Engineering Research Centre of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Science, Beijing, 100190, China
Pengge Ning: Research Beijing Engineering Research Centre of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Division of Environment Technology and Engineering, Institute of Process Engineering, Chinese Academy of Science, Beijing, 100190, China; Corresponding author.

Journal volume & issue: Vol. 8
pp. 90 – 96

Abstract

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In this work, liquid-liquid extraction of phenol from aqueous solutions using primary amine Primene JMT (Primene® JM-T) was investigated. The extraction capability of Primene® JM-T with different diluents, including 3-heptanone, sulfonated kerosene, methyl isobutyl ketone, n-octanol, toluene and petroleum ether was studied. The experimental results indicated that the distribution coefficient of phenol extracted using Primene® JM-T that was diluted in 3-heptanone could reach 101.74 under the pH of 9.2. Moreover, the extraction reaction was exothermic (enthalpy change for the extraction reaction (ΔrHm) was −21.03 kJ/mol). High temperature showed a negative effect on the extraction of phenol. The results also showed that adding mineral salt was conducive to the extraction process, and the extraction efficiency fell in the descending order of: (NH4)2SO4> NaCl > NH4Cl. Two empirical correlations were put forward to quantitatively describe the salting effect. Furthermore, the equilibrium constants of phenol extraction using Primene® JM-T were calculated to be 78.2 L/mol. The phenol was extracted using Primene® JM-T with the possible stoichiometric formula of: [RNH3+⋅PhOH]org, where R represents the alkyl group of the amine.

Published in Emerging Contaminants

ISSN: 2405-6650 (Print)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Environmental technology. Sanitary engineering: Environmental pollution
Website: https://www.keaipublishing.com/en/journals/emerging-contaminants/

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