Journal of Sustainable Metallurgy最新文献

Iron Chloride Vapor Treatment for Leaching Platinum Group Metals from Spent Catalysts 从废催化剂中沥滤铂族金属的氯化铁蒸汽处理技术

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-18 DOI: 10.1007/s40831-024-00910-6

Yu-ki Taninouchi, Kohei Sunagawa, Toru H. Okabe, Hiroaki Nakano

{"title":"Iron Chloride Vapor Treatment for Leaching Platinum Group Metals from Spent Catalysts","authors":"Yu-ki Taninouchi, Kohei Sunagawa, Toru H. Okabe, Hiroaki Nakano","doi":"10.1007/s40831-024-00910-6","DOIUrl":"https://doi.org/10.1007/s40831-024-00910-6","url":null,"abstract":"An efficient and environmentally friendly recovery of platinum group metals (PGMs) from secondary sources is necessary to ensure a sustainable supply of PGMs. In this study, contact with FeCl2 vapor in the presence of metallic Fe was investigated as a useful pretreatment for leaching PGMs from spent automobile catalysts. Fe-PGM alloys were efficiently formed when Pt, Pd, and Rh wires and Rh2O3 powder were subjected to FeCl2 vapor treatment at 1050 K (777 °C) for approximately 40 min. Further, the leachability of the PGMs in spent automobile catalyst samples increased after a similar vapor treatment was applied. When the pulverized spent catalyst sample without pretreatment was leached with aqua regia at 333 K (60 °C) for 60 min, 88% of Pt, 91% of Pd, and 37% of Rh were extracted. Meanwhile, after vapor treatment at 1050 K, 98% of Pt, 97% of Pd, and 87% of Rh were extracted under the same leaching conditions. Thus, the pretreatment with FeCl2 vapor, followed by leaching, is a feasible and effective technique for recovering PGMs from spent catalysts.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142267746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmentally Friendly Separating of Fine Copper Particles from Lithium Iron Phosphate and Graphite by Centrifugal Gravity Concentration 利用离心重力浓缩从磷酸铁锂和石墨中分离细小铜颗粒的环保方法

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-18 DOI: 10.1007/s40831-024-00922-2

Yong Zeng, Weixin Huang, Yingdi Dong, Zhongbao Hua, Xiqing Wu, Qingjun Guan, Wei Sun, Honghu Tang, Yue Yang

{"title":"Environmentally Friendly Separating of Fine Copper Particles from Lithium Iron Phosphate and Graphite by Centrifugal Gravity Concentration","authors":"Yong Zeng, Weixin Huang, Yingdi Dong, Zhongbao Hua, Xiqing Wu, Qingjun Guan, Wei Sun, Honghu Tang, Yue Yang","doi":"10.1007/s40831-024-00922-2","DOIUrl":"https://doi.org/10.1007/s40831-024-00922-2","url":null,"abstract":"The existing pretreatment method for recycling spent lithium iron phosphate (LFP) batteries effectively separates most of the copper foil. However, a small amount of fine copper particles (CP) remains in the LFP battery waste, which is mainly composed of graphite and LFP, affecting the subsequent smelting. Centrifugal gravity concentration (CGC) is a physical separation method that is highly efficient and environmentally friendly and is often used for the separation of fine-grain materials. In this study, it was used for the deep removal of CP from LFP battery waste. The dynamics analysis of the particles in the CGC indicated that CP can be effectively separated from graphite and LFP. The effects of fluidizing water pressure (FWP), relative centrifugal force (RCF), pulp density, and feeding rate on Cu grade, Cu recovery, and Cu separation efficiency (SE) were investigated by single-parameter experiments and response surface methodology (RSM) in CGC. The findings indicate a substantial impact of FWP and RCF on copper recovery, contrasting with the limited influence observed for pulp density and feeding rate on the recovery of Cu. The predicted outcomes from the RSM for Cu grade, Cu recovery, and Cu selectivity (Cu SE) were 85.1993%, 70.0271%, and 67.4004, respectively, under the conditions of FWP at 39.2697 kPa and RCF at 91.9 G. By means of both theoretical analysis and experimental validation, a novel and environmentally sustainable process for the recovery of CP from waste LFP batteries has been proposed.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>A technological process for the deep removal of fine copper particles from lithium iron phosphate battery waste using centrifugal gravity concentration.","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142267747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging Electrochemical Techniques for Recycling Spent Lead Paste in Lead-Acid Batteries 回收铅酸蓄电池中废铅膏的新兴电化学技术

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-13 DOI: 10.1007/s40831-024-00928-w

Lun-Ao Ouyang, Yapeng He, Puqiang He, Jianfeng Zhou, Hui Huang, Zhongcheng Guo

{"title":"Emerging Electrochemical Techniques for Recycling Spent Lead Paste in Lead-Acid Batteries","authors":"Lun-Ao Ouyang, Yapeng He, Puqiang He, Jianfeng Zhou, Hui Huang, Zhongcheng Guo","doi":"10.1007/s40831-024-00928-w","DOIUrl":"https://doi.org/10.1007/s40831-024-00928-w","url":null,"abstract":"Spent lead paste (SLP) obtained from end-of-life lead-acid batteries is regarded as an essential secondary lead resource. Recycling lead from spent lead-acid batteries has been demonstrated to be of paramount significance for both economic expansion and environmental preservation. Pyrometallurgical and hydrometallurgical approaches are proposed to recover metallic lead or lead oxide from SLP. However, traditional pyrometallurgical techniques are plagued by high energy consumption and substantial environmental pollution, whereas hydrometallurgical processes suffer from excessive reagent consumption and wastewater emissions. Benefiting from the technical advantages, electrochemical techniques in the recycling of SLP have attracted extensive interest in the last few years. This review provides a comprehensive summary of electrochemical approaches, technical feasibility, and improvements in recycling SLP. These methods mainly consist of leaching-electrowinning, direct solid-phase electrolysis, suspension electrolysis, electrolysis in ionic liquids, and electrolysis in molten salt. The recent research advances in electrochemical recycling of SLP are discussed. The present state-of-the art challenges and issues including energy consumption and impurity behavior in electrochemical treating SLP are also addressed.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A New Approach of Pelletizing: Use of Low-Grade Ore as a Potential Raw Material 造粒新方法：利用低品位矿石作为潜在原料

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-10 DOI: 10.1007/s40831-024-00921-3

Dohyeon Kim, Byeongsoo Yoo, Leonardo Tomas da Rocha, Seongkyu Cho, Seongjin Kim, Sung-Mo Jung

{"title":"A New Approach of Pelletizing: Use of Low-Grade Ore as a Potential Raw Material","authors":"Dohyeon Kim, Byeongsoo Yoo, Leonardo Tomas da Rocha, Seongkyu Cho, Seongjin Kim, Sung-Mo Jung","doi":"10.1007/s40831-024-00921-3","DOIUrl":"https://doi.org/10.1007/s40831-024-00921-3","url":null,"abstract":"For carbon neutrality, the use of sinter should be decreased owing to higher CO2 emission in the sintering process of the blast furnace operations. This trend might contribute to the increased use of iron ore pellets with lower CO2 emission in the fabrication process, high reducibility and gas permeability due to higher mechanical strength. The pelletizing process mostly uses high-grade iron ore such as magnetite (Fe3O4) as the main raw material, which has been depleted due to the increasing demand for pellet production. The current study attempted to replace magnetite ore with low-grade limonite ore (Fe2O3∙nH2O) at different additional levels (10, 30, 50 and 100 wt%). The augmented limonite content influenced the increase in the porosity of pellets, which resulted from dehydration. The effect of microstructure on the compressive strength of mixed pellets before reduction and the reduction behavior of mixed pellets in a hydrogen atmosphere could be elucidated by porosity and pore size distribution analysis. The integration of limonite with magnetite facilitated the formation of small-sized pores, which in turn resulted in a significantly enhanced microstructure, with the limonite-mixed pellets demonstrating compressive strength comparable to that of magnetite pellets. The goethite phase provided a pathway for hydrogen permeability, and consequently, the reduction degree of limonite-mixed pellets in a H2 atmosphere amounted to a reduction degree of 80%, which is similar to that of magnetite pellets. The mechanical strength of mixed pellets during reduction suggests their potential to withstand the stack layer in blast furnace operations. These findings could suggest the potential to utilize low-grade iron ore pellet process.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>Enhancing blast furnace sustainability via pellet feed optimization\u0000","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-Friendly and Efficient Alumina Recovery from Coal Fly Ash by Employing the CaO as an Additive During the Vacuum Carbothermic Reduction and Alkali Dissolution 在真空碳热还原和碱溶解过程中使用氧化钙作为添加剂，从煤粉灰中回收环保高效的氧化铝

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-10 DOI: 10.1007/s40831-024-00916-0

Zitao Rao, Wenzhou Yu, Haitao Yuan, Peng Wei, Fan Yang, Joseph Emmanuel Nyarko-Appiah

{"title":"Eco-Friendly and Efficient Alumina Recovery from Coal Fly Ash by Employing the CaO as an Additive During the Vacuum Carbothermic Reduction and Alkali Dissolution","authors":"Zitao Rao, Wenzhou Yu, Haitao Yuan, Peng Wei, Fan Yang, Joseph Emmanuel Nyarko-Appiah","doi":"10.1007/s40831-024-00916-0","DOIUrl":"https://doi.org/10.1007/s40831-024-00916-0","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>With the growing concern of environmental protection and waste recycling, recovery of high-value metal from coal fly ash (CFA) has attracted a lot of attention around the world. In our previous study, CaO was employed as an additive to react with mullite (3Al2O3·2SiO2) in CFA to produce CaO·xAl2O3, by which the extraction of alumina was strengthened tremendously. However, the dissolving mechanism of CaO·xAl2O3 in alkali liquor has not yet been conducted in in-depth research, which casts a shadow for the further progress of the process. In this paper, with the aim of clarifying the alkali dissolving mechanism as well as developing an eco-friendly alumina recovery process, the effect of CaO addition on the mineralogical transformation of CFA and the dissolving behaviors of CaO·xAl2O3 in alkali liquor were investigated thoroughly. The results show that the mullite in CFA can be converted to Fe-Si alloys and CaO·xAl2O3 with the addition of CaO. Additionally, it is proved that the liquid/solid ratio, the alkali concentration, and the dissolving temperature would be the most critical impactors to decide the extraction rate of alumina. Under the optimal conditions, the extraction rate of alumina attained 93.8% and the CaO can be recycled for cyclic utilization in this process.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of Zn Ions from Synthetic Wastewater Using Graphene Oxide as a Nanocollector in Ion Flotation 在离子浮选中使用氧化石墨烯作为纳米集电体去除合成废水中的锌离子

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-09 DOI: 10.1007/s40831-024-00917-z

Arash Sobouti, Bahram Rezai, Fatemeh Sadat Hoseinian

引用次数: 0

Promoting the Utilization of High-Alumina Iron Ores During Sintering by Pre-preparing a Low-Melting-Point Flux 通过预先制备低熔点助熔剂促进烧结过程中对高铝铁矿石的利用

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-09 DOI: 10.1007/s40831-024-00923-1

Junjie Zeng, Jin Wang, Rui Wang, Ningyu Zhang, Yongda Li, Yuxiao Xue, Xuewei Lv

{"title":"Promoting the Utilization of High-Alumina Iron Ores During Sintering by Pre-preparing a Low-Melting-Point Flux","authors":"Junjie Zeng, Jin Wang, Rui Wang, Ningyu Zhang, Yongda Li, Yuxiao Xue, Xuewei Lv","doi":"10.1007/s40831-024-00923-1","DOIUrl":"https://doi.org/10.1007/s40831-024-00923-1","url":null,"abstract":"High-alumina iron ore sintering is characterized by poor sinter indices and high carbon emission due to the limited formation amount of liquid phase. In this study, the conventional Ca-bearing flux (i.e., burnt lime) was substituted by a new Ca-bearing flux with low melting point (i.e., prefabricated calcium ferrite) for the improvement of the formation ability of liquid phase during sintering. The substitution of prefabricated calcium ferrite for burnt lime contributed to the reduction of the formation temperature of liquid phase and the improvement of liquid-phase fluidity. At the optimum substitution ratio of 20%, the strength of sinter compacts was improved by 38.38% in the mini-sintering tests due to the more formation of liquid phase, especially SFCA (i.e., Silico-ferrite of calcium and alumina). In addition, the proportion of high-alumina iron ore can be appropriately increased from 10.20% to 25.20% at the substitution ratio of 20% under the premise of the similar strength of sinter compacts. High-alumina iron ore can be effectively utilized during sintering by pre-preparing the low melting-point flux, which will be further proved by the relevant sinter pot tests in our follow-up study.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Copper Recovery and Fluorine Fixation from Spent Carbon Cathode Reduction Copper Slag by Response Surface Methodology 响应曲面法优化废碳阴极还原铜渣中铜的回收和氟的固定

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-09 DOI: 10.1007/s40831-024-00919-x

Mingyang Li, Shiwei Zhou, Bo Li, Yonggang Wei, Hua Wang

引用次数: 0

Utilization of Hazardous Waste by Co-Treating Secondary Aluminum Dross and Red Mud Residue for Brickmaking 通过将二次铝渣和红泥渣协同处理用于制砖来利用危险废物

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-06 DOI: 10.1007/s40831-024-00912-4

Chenchen Zhou, Ling Wang, Chengyan Wang

{"title":"Utilization of Hazardous Waste by Co-Treating Secondary Aluminum Dross and Red Mud Residue for Brickmaking","authors":"Chenchen Zhou, Ling Wang, Chengyan Wang","doi":"10.1007/s40831-024-00912-4","DOIUrl":"https://doi.org/10.1007/s40831-024-00912-4","url":null,"abstract":"Secondary aluminum dross (SAD) and red mud residues (RMR) are hazardous wastes generated during the production of alumina and aluminum metal processing, containing unstable AlN, fluoride, chlorides, and alkalis. A novel and pragmatic approach was proposed in this study for the synergistic treatment of waste, wherein hazardous substances are modified through the incorporation of SAD, RMR, and silicate tailings (ST) derived from bauxite flotation, ultimately resulting in the production of ceramic sintered bricks. During brickmaking, AlN in SAD was transformed into Al(OH)3 through an alkali-catalytic process, and fluorides and chlorides in SAD were efficiently modified and solidified into the silicate mineral marialite Na4[AlSi3O8]3(F,Cl). Abundant alkalis in RMR transformed into the stable mineral feldspar Na1–xCaxAl1+xSi3–xO8, which is the main phase of the sintered brick. The optimal conditions for achieving superior performance of sintered bricks included a mass ratio of SAD, RMR, and ST at 3:3:4, sintering temperature of 1120 °C, and a sintering duration of 2 h. The water absorption rate, porosity, volume density, and compressive strength of the sintered brick in the optimum conditions were 13.69, 26.75%, and 83.04 MPa, respectively, conforming to the industry standards for brick performance.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Hydrogen Reduction of Kahnuj Ilmenite Using Response Surface Methodology (RSM) 利用响应面法（RSM）优化卡努吉钛铁矿的氢还原反应

IF 2.4 3区材料科学

Journal of Sustainable Metallurgy Pub Date : 2024-09-04 DOI: 10.1007/s40831-024-00904-4

Leila Ghasemi, Seyed Hossein Seyedein, Mandana Adeli, Mohammad Reza Aboutalebi

{"title":"Optimization of Hydrogen Reduction of Kahnuj Ilmenite Using Response Surface Methodology (RSM)","authors":"Leila Ghasemi, Seyed Hossein Seyedein, Mandana Adeli, Mohammad Reza Aboutalebi","doi":"10.1007/s40831-024-00904-4","DOIUrl":"https://doi.org/10.1007/s40831-024-00904-4","url":null,"abstract":"The hydrogen reduction of Kahnuj ilmenite concentrate (Kerman, Iran) was studied under different process parameters using Response Surface Methodology (RSM). The effect of major influencing parameters on the reductive mass loss of pellets made from ilmenite concentrate was elucidated. The independent variables examined consisted of the reduction temperature range of 850–1050 °C, pre-oxidation temperature range of 800–1000 °C, and gas flow rates of 200–500 mL min−1. It was found that the reduction temperature and pre-oxidation temperature were the most significant factors affecting the mass loss. The optimum mass loss conditions were determined to be a reduction temperature of 1045 °C, pre-oxidation temperature of 860 °C, and hydrogen flow rate of 217 mL min−1. The optimal experimental mass loss of 15.1% was in accordance with the predicted value of 15.3%. The ilmenite phase transformed into metallic iron, rutile, reduced rutile, and M3O5 solid solution through the reduction process.<h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0