Green Extractants in Assisting Recovery of REEs: A Case Study-Reference-Cited by-同舟云学术

Green Extractants in Assisting Recovery of REEs: A Case Study

Published:2023-01-18 Issue:3 Volume:28 Page:965
ISSN:1420-3049
Container-title:Molecules
language:en
Short-container-title:Molecules

Author:

Kołodyńska Dorota¹^ORCID,Burdzy Katarzyna¹^ORCID,Hunger Steffi²,Aurich Andreas²,Ju Yongming³⁴

Affiliation:

1. Department of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 2, 20-031 Lublin, Poland

2. Department Centre for Environmental Biotechnology (UBZ), Helmholtz-Centre for Environmental Research-UFZ, Permoserstrasse 15, 04318 Leipzig, Germany

3. Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment (MEE), Nanjing 210042, China

4. The Key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Subcenter of State Environmental Dioxin Monitoring Center, South China Institute of Environmental Sciences, Ministry of Ecology and Environment (MEE), Guangzhou 510655, China

Abstract

The recycling of REEs from the end of life (EoL) products, such as nickel metal hydride batteries (NiMH), offers great opportunities for their supply in Europe. In the presented paper, the application of ‘green’ extractants such as citric (CA), metatartaric (TA), and ethylenediaminedisuccinic acid (EDDS) (also with H2O2 addition) for the recovery of REEs was studied. The studies were conducted considering the effects of the phase contact time, the initial concentration of CA, TA, and EDDS, as well as H2O2, pH, and temperature. It was found that the addition of TA to the CA solution meant that higher rates of metal ion binding and, thus, leaching was observed. The optimal conditions were obtained in the system: CA-TA and H2O2 for the concentration 0.6M-0.3 M-2%.

Funder

National Centre of Research and Development

Innovation Incubator 4.0

Publisher

MDPI AG

Subject

Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science

Link

https://www.mdpi.com/1420-3049/28/3/965/pdf

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