Experimental Study on the Separation of Selected Metal Elements (Sm, Co, Fe, and Cu) from Nitric Acid Leachate Using Specific Precipitants
As more countries emphasize the importance of the circular economy, recycling resources from waste has become increasingly crucial. This study proposes a novel separation process for SmCo magnets, which can separate and recover metals by precipitation, thus reducing the amount of solvent used. The p...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Recycling |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2313-4321/9/6/111 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | As more countries emphasize the importance of the circular economy, recycling resources from waste has become increasingly crucial. This study proposes a novel separation process for SmCo magnets, which can separate and recover metals by precipitation, thus reducing the amount of solvent used. The precipitation process involved the use of Na<sub>2</sub>SO<sub>4</sub>, NH<sub>4</sub>OH, and H<sub>2</sub>C<sub>2</sub>O<sub>4</sub> to separate Sm, Fe, Cu, and Co, resulting in high precipitation efficiencies of 96.11%, 99.97%, 93.81%, and 98.15%, respectively. Moreover, the recovered metals can be directly used to create magnets after calcination, making this process a step towards achieving a circular economy. |
|---|---|
| ISSN: | 2313-4321 |