Study on solvent extraction of REEs from a NdFeB permanent magnet scrap

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

KHANI SOMAYEH; SALEHI HOSSEIN; TAVAKOLI HAMED; ABOUTALEBI MOHAMMAD REZA

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: METALLURGICAL ENGINEERING Year:2019 | Volume:22 | Issue:1 (73) Page(s): 32-41

Download Full-Text

Persian Verion

View:

494

Download:

Cites:

Information Journal Paper

Title

Study on solvent extraction of REEs from a NdFeB permanent magnet scrap

Author(s)

KHANI SOMAYEH | SALEHI HOSSEIN | TAVAKOLI HAMED | ABOUTALEBI MOHAMMAD REZA | Issue Writer Certificate

Keywords

Rare earth elementsQ1

NdFeB magnetQ1

Solvent extractionQ2

D2EHPAQ1

PrecipitationQ1

Abstract

In this study recovery of Rare earth elements from a NdFeB magnet was investigated. The magnet was firstly demagnetized at 450° C followed by grinding and leaching in 2 M sulfuric acid, wherein the Rare earth elements were precipitated as their sodium double sulfate. However, iron and boron as the main impurities remained in the solution. The REEs double sulfate was subsequently treated with oxalic acid to obtain REEs oxalate followed by calcination of the rare-earth oxalates at 950° C for 2 hours to produce rare-earth oxides. After leaching the REEs oxide in 0. 5 M hydrochloric acid, Solvent extraction was carried out using D2EHPA as the extractant. Results showed that selective extraction of Dy is possible at pH<0. 5, while the extraction of all four elements could be achieved efficiently in higher pH values. It was observed that the heavier elements were extracted with higher efficiency compared to the light elements for all pH values examined. Under the evaluated conditions, the extraction of Nd, Pr, and Dy at pH=3 was almost completed.

Cites

No record.

References

No record.

Cite

APA: Copy

KHANI, SOMAYEH, SALEHI, HOSSEIN, TAVAKOLI, HAMED, & ABOUTALEBI, MOHAMMAD REZA. (2019). Study on solvent extraction of REEs from a NdFeB permanent magnet scrap. METALLURGICAL ENGINEERING, 22(1 (73) ), 32-41. SID. https://sid.ir/paper/409409/en

Vancouver: Copy

KHANI SOMAYEH, SALEHI HOSSEIN, TAVAKOLI HAMED, ABOUTALEBI MOHAMMAD REZA. Study on solvent extraction of REEs from a NdFeB permanent magnet scrap. METALLURGICAL ENGINEERING[Internet]. 2019;22(1 (73) ):32-41. Available from: https://sid.ir/paper/409409/en

IEEE: Copy

SOMAYEH KHANI, HOSSEIN SALEHI, HAMED TAVAKOLI, and MOHAMMAD REZA ABOUTALEBI, “Study on solvent extraction of REEs from a NdFeB permanent magnet scrap,” METALLURGICAL ENGINEERING, vol. 22, no. 1 (73) , pp. 32–41, 2019, [Online]. Available: https://sid.ir/paper/409409/en

Related Journal Papers