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Recovery of Cadmium in Nickel-Cadmium Leaching Solution by Sulfide Precipitation Method
폐니켈-카드뮴 침출용액으로부터 황화물 침전법을 이용한 카드뮴 회수에 대한 연구
Il-Jeong Park, Dae-Weon Kim, Min-Jun Kim, Hang-Chul Jeong
박일정, 김대원, 김민준, 정항철
Korean J. Met. Mater. 2019;57(11):726-731.   Published online 2019 Nov 5
DOI: https://doi.org/10.3365/KJMM.2019.57.11.726

Abstract
A large amount of waste nickel-cadmium batteries are being produced, and various studies have been conducted to recover the valuable metals contained in the batteries. Solvent extraction is mainly used to recover nickel and cadmium, but that method has economic and environmental problems. In this study, to solve these problems,..... More

      
Formation and Characterization of Mg-Cu-Gd-Nd Bulk Metallic Glass Using NdFeB Magnet Scrap
NdFeB 자석 스크랩을 이용한 Mg-Cu-Gd-Nd 비정질 합금의 제조 및 특성
Duck Hwan Yoon, Hong Min, Hong Jun Chae, Jin Kyu Lee
윤덕환, 민홍, 채홍준, 이진규
Korean J. Met. Mater. 2019;57(10):617-623.   Published online 2019 Sep 6
DOI: https://doi.org/10.3365/KJMM.2019.57.10.617

Abstract
In the present study, new Mg-based bulk metallic glasses have been developed in a Mg-Cu-GdNd based system using a Mg-Nd byproduct obtained from the recycling process of NdFeB magnet scrap through liquid metal extraction. The Mg-Cu-Gd-Nd bulk metallic glasses with a diameter of 2 mm are fabricated by injection casting..... More

                        
Eco-Friendly Pretreatment of Titanium Turning Scraps and Subsequent Preparation of Ferro-Titanium Ingots
Jikwang Chae, Jung-Min Oh, Suhwan Yoo, Jae-Won Lim
Korean J. Met. Mater. 2019;57(9):569-574.   Published online 2019 Aug 21
DOI: https://doi.org/10.3365/KJMM.2019.57.9.569

Abstract
In this study, an eco-friendly pretreatment process was developed to recycle titanium turning scraps and ferro-titanium ingots with low gaseous impurities were prepared using recycled titanium turning scraps. The amount of gaseous impurities of titanium scraps before removing the machining oils on the surface was as high as 20000 ppm...... More

                        
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