Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.69
Seok-je Kwon, Young-jin Kim, Yang-soo Kim, Jun-hyung Seo, Jin-sang Cho
{"title":"Manufacturing of Lime Materials with High Specific Surface Area for Desulfurization","authors":"Seok-je Kwon, Young-jin Kim, Yang-soo Kim, Jun-hyung Seo, Jin-sang Cho","doi":"10.7844/kirr.2024.33.1.69","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.69","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140418922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.48
S. Choi, Min-Chul Lee, Jin-Man Kim, Young-Gon Son, Nam-Ho Kim
{"title":"Evaluation of the Basic Property Evaluation of Eco-powder, a Hydrothermal Synthesis Product for Improving Waste Vinyl Recycling Efficiency","authors":"S. Choi, Min-Chul Lee, Jin-Man Kim, Young-Gon Son, Nam-Ho Kim","doi":"10.7844/kirr.2024.33.1.48","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.48","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140417417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.3
D. Lee, Hyeon-Kyung Oh, Kyung-Soo Park
{"title":"Waste LED Recycling: Status and Prospects","authors":"D. Lee, Hyeon-Kyung Oh, Kyung-Soo Park","doi":"10.7844/kirr.2024.33.1.3","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.3","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140419099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.15
So-Yeong Lee, So-Yeon Lee, Dae-Hyeon Lee, Ho-Sang Sohn
{"title":"Lithium Recovery from NCM Lithium Ion Battery by Hydrogen Reduction Followed by Water Leaching","authors":"So-Yeong Lee, So-Yeon Lee, Dae-Hyeon Lee, Ho-Sang Sohn","doi":"10.7844/kirr.2024.33.1.15","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.15","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140419802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.22
Taeheon Kim, Jae-Won Lim
{"title":"Optimization of Synthesis Conditions for Improving Ti3AlC2 MAX Phase Using Titanium Scraps","authors":"Taeheon Kim, Jae-Won Lim","doi":"10.7844/kirr.2024.33.1.22","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.22","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140423362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.58
Hyewon Jung, Jeseung Lee, Ganghoon Song, Minseo Park, Junmo Ahn
{"title":"Feasibility Study of Methanesulfonic Acid (MSA), an Alternative Lixiviant to Improve Conventional Sulfuric Acid Leaching of NCM Black Mass","authors":"Hyewon Jung, Jeseung Lee, Ganghoon Song, Minseo Park, Junmo Ahn","doi":"10.7844/kirr.2024.33.1.58","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.58","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140418477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.37
Keeseok Kim, Haseog Kim, Bong-hyun Baek, Simhun Yuk
{"title":"Grouting Properties using Thixotropic Material and Vibration Impact Method","authors":"Keeseok Kim, Haseog Kim, Bong-hyun Baek, Simhun Yuk","doi":"10.7844/kirr.2024.33.1.37","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.37","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140421424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-28DOI: 10.7844/kirr.2024.33.1.31
Sung-Yong Cho, Hyeon Seo, Pan-Pan Sun
{"title":"Separation of Ag and Zn from Nitrate Leachate of Spent Silver Oxide Batteries by Solvent Extraction with Cyanex272","authors":"Sung-Yong Cho, Hyeon Seo, Pan-Pan Sun","doi":"10.7844/kirr.2024.33.1.31","DOIUrl":"https://doi.org/10.7844/kirr.2024.33.1.31","url":null,"abstract":"","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140417897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-31DOI: 10.7844/kirr.2023.32.5.28
Jonggwan Ahn, Jin-Young Lee
Cemented carbide is an important material in strategic materials, and nd the development of recycling technologies for valuable metals such as cobalt(Co) and tungsten(W) is urgently needed to ensure sufficient domestic raw material supply, supply chain stability, and high-tech industrialization. In this study, an experiment was conducted to leach Co and W from roasted WC-Co cemented carbide sludge by sulfuric-acid leaching. From this experiments, the optimal conditions for Co leaching included a sludge/leachate solid–liquid ratio of 1:20, Co/sulfuric acid molar ratio of 1/5.8, leaching temperature of 80°C, and leaching time of 7 h. Under these conditions, the leaching rate was calculated to be approximately 72.6%. In addition, up to 83% Co can be recovered when two-stage leaching is applied. By contrast, the leaching rate of W was less than 5%. The results of this experiment demonstrate the possibility of separating and recovering Co from W in cemented carbide sludge by sulfuric-acid leaching.
{"title":"Separation Leaching Behaviors of Cobalt(Co) and Tungsten(W) from Tungsten Carbide Sludge by Sulfuric Acid Solutions","authors":"Jonggwan Ahn, Jin-Young Lee","doi":"10.7844/kirr.2023.32.5.28","DOIUrl":"https://doi.org/10.7844/kirr.2023.32.5.28","url":null,"abstract":"Cemented carbide is an important material in strategic materials, and nd the development of recycling technologies for valuable metals such as cobalt(Co) and tungsten(W) is urgently needed to ensure sufficient domestic raw material supply, supply chain stability, and high-tech industrialization. In this study, an experiment was conducted to leach Co and W from roasted WC-Co cemented carbide sludge by sulfuric-acid leaching. From this experiments, the optimal conditions for Co leaching included a sludge/leachate solid–liquid ratio of 1:20, Co/sulfuric acid molar ratio of 1/5.8, leaching temperature of 80°C, and leaching time of 7 h. Under these conditions, the leaching rate was calculated to be approximately 72.6%. In addition, up to 83% Co can be recovered when two-stage leaching is applied. By contrast, the leaching rate of W was less than 5%. The results of this experiment demonstrate the possibility of separating and recovering Co from W in cemented carbide sludge by sulfuric-acid leaching.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The main components of chlorine bypass dust are calcium, alkali, and chlorine. Chlorine components must be removed from chlorine bypass dust to enable its recycling as a cement raw material. Cement companies usually employ water-washing treatment to recover KCl from chlorine bypass dust. In this study, the chemical composition, mineral properties, and microstructure of the chlorine bypass dust and washed residues obtained from a 35,000 ton/year chlorine-bypass-dust-washing facility were analyzed to determine the feasibility of recycling the dust and its washed residues. The chlorine content of the dust decreased from 23.9% to 1.4% after washing, thus confirming the possibility of using the washed residues as a cement raw material. The CaO component increased from 22.4% to 49.8% whereas the K2O component decreased from 25.2% to 5.45%. The average particle diameter of the water-washed residues was 22.72 μm, which was significantly higher than that of the chlorine bypass dust before washing (12.13 μm). This result was attributed to the dissolution of chlorine compound particles measuring less than 1 μm in the chlorine bypass dust during washing.
{"title":"Characteristics Analysis of Chlorine Bypass Dust and Water- washed Residue","authors":"Sun-Mok Lee, Daekeun Lee, Jun-Ho Kil, Taewoo Lee, Hun Song, Woo Sung Yum","doi":"10.7844/kirr.2023.32.5.44","DOIUrl":"https://doi.org/10.7844/kirr.2023.32.5.44","url":null,"abstract":"The main components of chlorine bypass dust are calcium, alkali, and chlorine. Chlorine components must be removed from chlorine bypass dust to enable its recycling as a cement raw material. Cement companies usually employ water-washing treatment to recover KCl from chlorine bypass dust. In this study, the chemical composition, mineral properties, and microstructure of the chlorine bypass dust and washed residues obtained from a 35,000 ton/year chlorine-bypass-dust-washing facility were analyzed to determine the feasibility of recycling the dust and its washed residues. The chlorine content of the dust decreased from 23.9% to 1.4% after washing, thus confirming the possibility of using the washed residues as a cement raw material. The CaO component increased from 22.4% to 49.8% whereas the K2O component decreased from 25.2% to 5.45%. The average particle diameter of the water-washed residues was 22.72 μm, which was significantly higher than that of the chlorine bypass dust before washing (12.13 μm). This result was attributed to the dissolution of chlorine compound particles measuring less than 1 μm in the chlorine bypass dust during washing.","PeriodicalId":20967,"journal":{"name":"Resources Recycling","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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