Prioritizing the acid leaching system of spent SmCo magnets through material flow cost accounting and carbon emission analysis

Jian Zhi Wang; Yi Chin Tang; Yun Hwei Shen

doi:10.1016/j.jclepro.2023.138064

Prioritizing the acid leaching system of spent SmCo magnets through material flow cost accounting and carbon emission analysis

Jian Zhi Wang, Yi Chin Tang, Yun Hwei Shen

Department of Resources Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This study aimed to select the most suitable acid solution for leaching samarium cobalt (SmCo) magnets by comparing the leaching efficiency, cost, and carbon emissions of inorganic acids (hydrochloric acid and nitric acid) and organic acids (citric acid). The total leaching efficiency, material flow cost accounting (MFCA), and ISO14064-1 methods were utilized. The findings suggest that nitric acid exhibits the highest overall leaching efficiency with the lowest cost and carbon emissions, making it the most appropriate acid solution for leaching SmCo magnets. Additionally, organic acid (citric acid) leaching resulted in lower environmental friendliness.

Original language	English
Article number	138064
Journal	Journal of Cleaner Production
Volume	417
DOIs	https://doi.org/10.1016/j.jclepro.2023.138064
Publication status	Published - 2023 Sept 10

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
General Environmental Science
Strategy and Management
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.jclepro.2023.138064

Cite this

@article{3552b17e8c4e4fa0bd17e5510fcf5206,

title = "Prioritizing the acid leaching system of spent SmCo magnets through material flow cost accounting and carbon emission analysis",

abstract = "This study aimed to select the most suitable acid solution for leaching samarium cobalt (SmCo) magnets by comparing the leaching efficiency, cost, and carbon emissions of inorganic acids (hydrochloric acid and nitric acid) and organic acids (citric acid). The total leaching efficiency, material flow cost accounting (MFCA), and ISO14064-1 methods were utilized. The findings suggest that nitric acid exhibits the highest overall leaching efficiency with the lowest cost and carbon emissions, making it the most appropriate acid solution for leaching SmCo magnets. Additionally, organic acid (citric acid) leaching resulted in lower environmental friendliness.",

author = "Wang, {Jian Zhi} and Tang, {Yi Chin} and Shen, {Yun Hwei}",

note = "Funding Information: The authors wish to acknowledge the support of National Cheng Kung University's Department of Resources Engineering and the Ministry of Science and Technology, R.O.C . Publisher Copyright: {\textcopyright} 2023",

year = "2023",

month = sep,

day = "10",

doi = "10.1016/j.jclepro.2023.138064",

language = "English",

volume = "417",

journal = "Journal of Cleaner Production",

issn = "0959-6526",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Prioritizing the acid leaching system of spent SmCo magnets through material flow cost accounting and carbon emission analysis

AU - Wang, Jian Zhi

AU - Tang, Yi Chin

AU - Shen, Yun Hwei

N1 - Funding Information: The authors wish to acknowledge the support of National Cheng Kung University's Department of Resources Engineering and the Ministry of Science and Technology, R.O.C . Publisher Copyright: © 2023

PY - 2023/9/10

Y1 - 2023/9/10

N2 - This study aimed to select the most suitable acid solution for leaching samarium cobalt (SmCo) magnets by comparing the leaching efficiency, cost, and carbon emissions of inorganic acids (hydrochloric acid and nitric acid) and organic acids (citric acid). The total leaching efficiency, material flow cost accounting (MFCA), and ISO14064-1 methods were utilized. The findings suggest that nitric acid exhibits the highest overall leaching efficiency with the lowest cost and carbon emissions, making it the most appropriate acid solution for leaching SmCo magnets. Additionally, organic acid (citric acid) leaching resulted in lower environmental friendliness.

AB - This study aimed to select the most suitable acid solution for leaching samarium cobalt (SmCo) magnets by comparing the leaching efficiency, cost, and carbon emissions of inorganic acids (hydrochloric acid and nitric acid) and organic acids (citric acid). The total leaching efficiency, material flow cost accounting (MFCA), and ISO14064-1 methods were utilized. The findings suggest that nitric acid exhibits the highest overall leaching efficiency with the lowest cost and carbon emissions, making it the most appropriate acid solution for leaching SmCo magnets. Additionally, organic acid (citric acid) leaching resulted in lower environmental friendliness.

UR - http://www.scopus.com/inward/record.url?scp=85165063229&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85165063229&partnerID=8YFLogxK

U2 - 10.1016/j.jclepro.2023.138064

DO - 10.1016/j.jclepro.2023.138064

M3 - Article

AN - SCOPUS:85165063229

SN - 0959-6526

VL - 417

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

M1 - 138064

ER -

Prioritizing the acid leaching system of spent SmCo magnets through material flow cost accounting and carbon emission analysis

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this