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A Study on the Treatment and Recovery of Sodium Sulfate (Na<sub>2</sub>SO<sub>4</sub>) Generated When Recovering Valuable Metals (Ni, Co, Mn, Li) from Waste Lithium Ion Batteries(LIBs)
폐리튬배터리(LIBs)에서 유가금속(Ni, Co, Mn, Li) 회수 시 발생하는 황산나트륨의 처리 및 회수 연구
Yeonchul Cho, Minhyuk Seo, Youngjae Lee, Jaewoo Ahn
조연철, 서민혁, 이영재, 안재우
Korean J. Met. Mater. 2024;62(4):275-283.   Published online 2024 Mar 29
DOI: https://doi.org/10.3365/KJMM.2024.62.4.275

Abstract
Concerns have arisen regarding the high concentrations of sodium sulfate in wastewater resulting from the waste Li-ion battery wet recycling process. In addressing this issue, Bipolar electrodialysis was employed to desalinate high-concentration sodium sulfate and recover it as sulfuric acid and sodium hydroxide. The investigation encompassed various experimental variables, such..... More

                
Comparative Study on the Corrosion Behavior of Materials in Heat Recovery Steam Generators for Combined Cycle Power Plant, Based on Sulfuric Acid Concentrations: Carbon Steels vs. Duplex Stainless Steel (UNS S32205)
복합화력발전 내 배열회수 보일러용 소재(탄소강 계열 및 듀플렉스 스테인리스강(UNS S32205))의 황산농도에 따른 부식거동 비교 연구
Yu Sung Jang, Jin Sung Park, Seung Gab Hong, Sung Jin Kim
장유성, 박진성, 홍승갑, 김성진
Korean J. Met. Mater. 2023;61(11):830-841.   Published online 2023 Oct 29
DOI: https://doi.org/10.3365/KJMM.2023.61.11.830

Abstract
This study examined the effects of sulfuric acid concentrations on the corrosion behaviors of three types of commercial steels, conventional carbon steel (SA192), sulfuric acid dew resistant steel (S-TEN), and duplex stainless steel (S32205), considered to be potential materials for the heat recovery steam generator (HRSG) in combined cycle power..... More

                
A Study on the Leaching of Rare Earth Elements from Waste Phosphor Powder
폐형광체 분말로부터 희토류의 회수를 위한 침출 특성 고찰
Gee Hun Lee, Chang Kwon Kim, Dong Hoon Lee, Young Jun Song
이기헌, 김창권, 이동훈, 송영준
Korean J. Met. Mater. 2021;59(7):459-468.   Published online 2021 Jun 16
DOI: https://doi.org/10.3365/KJMM.2021.59.7.459

Abstract
This study was carried out to obtain data to design a process to recover rare earth elements, specifically Y(Yttrium), La(Lanthanum), Ce(Cerium), Eu(Europium), Tb(Terbium) from waste phosphor powder. For this purpose, we investigated the effect of temperature, concentration, time and acids on leaching of the rare earth elements. The effect of..... More

                   Web of Science 1  Crossref 2
Effect of Ni, C and Ti Addition on Shape Recovery Behavior and the Mechanical Properties of Fe-17Mn-5Si-5Cr Shape Memory Alloys
Fe-17Mn-5Si-5Cr 형상기억합금의 형상복원거동 및 기계적 특성에 미치는 Ni, Ti 및 C의 영향
Dohyoung Kim, Yonghwan Kim, Jeong-Jung Oak, Junghoon Lee, Chan Hee Park, Wookjin Lee, Yongho Park
김도형, 김용환, 옥정중, 이정훈, 박찬희, 이욱진, 박용호
Korean J. Met. Mater. 2020;58(10):660-671.   Published online 2020 Oct 5
DOI: https://doi.org/10.3365/KJMM.2020.58.10.660

Abstract
Fe-Mn-Si based shape memory alloy is a new functional material that can be used to apply prestress to civil and structural components such as concrete structures. In this study, the effects of alloying elements Ni, C and Ti on the mechanical and shape memory properties of the alloy were investigated..... More

                   Web of Science 7  Crossref 7
Recovery of Lithium as Li<sub>3</sub>PO<sub>4</sub> from Waste Water in a LIB Recycling Process
폐리튬이온전지 재활용 공정 폐액으로부터 리튬의 회수를 위한 인산리튬 침전 특성 연구
Young-Jun Song
송영준
Korean J. Met. Mater. 2018;56(10):755-762.   Published online 2018 Oct 5
DOI: https://doi.org/10.3365/KJMM.2018.56.10.755

Abstract
This study was conducted to obtain engineering design data for a process to recover lithium in the form of Li3PO4 from the waste water of a lithium ion battery (LIB) recycling process. The influence of temperature, pH, and concentration on the solubility of Li3PO4 and the reaction rate in the..... More

                   Crossref 16
Modification of the Amount of CH<sub>4</sub> Supplied for the Efficient CH<sub>4</sub> Reduction of SnO<sub>2</sub>
Taeyang Han, Youhan Sohn, Hyunwoo Ha, Mi Yoo, Sangyeol Kim, Sang-ro Lee, Hyun You Kim, Jun Hyun Han
Korean J. Met. Mater. 2018;56(5):384-391.   Published online 2018 May 8
DOI: https://doi.org/10.3365/KJMM.2018.56.5.384

Abstract
The methane reduction (MR) of SnO2 has been proposed as a highly efficient method for recovering Sn from SnO2 containing industrial wastes. The MR of SnO2 also produces a mixture of H2 and CO, which can be further utilized as a syngas for the production of various fuels through the..... More

       Crossref 2
Comparative Study on the Corrosion Behavior of Materials in Heat Recovery Steam Generators for Combined Cycle Power Plant, Based on Sulfuric Acid Concentrations: Carbon Steels vs Duplex Stainless Steel (UNS S32205)
복합화력발전 내 배열회수 보일러용 소재 (탄소강 계열 및 듀플렉스 스테인 리스강(UNS S32205))의 황산농도에 따른 부식거동 비교 연구

Published online 1999 Nov 30
Abstract
: This study examined the effects of sulfuric acid concentrations on the corrosion behaviors of three types of commercial steels, conventional carbon steel (SA192), sulfuric acid dew resistant steel (S-TEN), and duplex stainless steel (S32205), considered to be potential materials for the heat recovery steam generator (HRSG) in combined cycle power plants. Based... More
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