Pub Date : 2023-03-31DOI: 10.2473/journalofmmij.139.10
D. Ishiyama, Y. Ogawa, K. Hirose, T. Takeda, Shinsaku Nakamura, Sachi Wakasa, Olaotse Osenyeng, Z. Stevanović
{"title":"野外調査による地表検証データと衛星画像解析に基づく鉱山地域の環境影響評価","authors":"D. Ishiyama, Y. Ogawa, K. Hirose, T. Takeda, Shinsaku Nakamura, Sachi Wakasa, Olaotse Osenyeng, Z. Stevanović","doi":"10.2473/journalofmmij.139.10","DOIUrl":"https://doi.org/10.2473/journalofmmij.139.10","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86502193","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 : 2023-01-31DOI: 10.2473/journalofmmij.139.1
Toshiki Okudera, Hidehiro Sekimoto
{"title":"Degradation of Glue in Lead Electrorefining","authors":"Toshiki Okudera, Hidehiro Sekimoto","doi":"10.2473/journalofmmij.139.1","DOIUrl":"https://doi.org/10.2473/journalofmmij.139.1","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84816622","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 : 2022-12-30DOI: 10.2473/journalofmmij.138.170
N. Nishioka, Takumi Kai, M. Okamoto, H. Takebe
A hand-made apparatus to react copper concentrate (Cc)/pyrite (Py)/silica sand (Ss) mixture was developed for an imitated concentrate burner at laboratory scale. An instantaneous (< 1 s) ignition reaction was macroscopically observed by preheated oxygen gas blowing to Cc/Py/Ss mixture with a Fe/SiO 2 mass ratio of 1.1. SEM-EDS analysis was used to observe microstructure and phase distribution in reacted and water-quenched particles. As for the Cc/Ss samples collected at the point close to the gas blowing spot, 70–80 mass% Cu matte phase and heterogeneous slag phase including large amounts of magnetite (Mag) particles were formed. At the lower part from the gas blowing spot with a distance of 275 mm, 60–65 mass% Cu matte phase was confirmed. The area fraction of Mag particles in the slag phase decreased with increasing Py adding concentration in the mixture sample. Our results suggested the concentration and microscopic distribution of Py in the mixture including Cc contributed to control both Cu concentration in matter phase and Mag particle concentration in slag phase.
{"title":"Evaluation of Heterogenous Oxidation Reaction of Copper Concentrate/Pyrite/Silica Sand Mixture by Preheated Oxygen Gas Blowing","authors":"N. Nishioka, Takumi Kai, M. Okamoto, H. Takebe","doi":"10.2473/journalofmmij.138.170","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.170","url":null,"abstract":"A hand-made apparatus to react copper concentrate (Cc)/pyrite (Py)/silica sand (Ss) mixture was developed for an imitated concentrate burner at laboratory scale. An instantaneous (< 1 s) ignition reaction was macroscopically observed by preheated oxygen gas blowing to Cc/Py/Ss mixture with a Fe/SiO 2 mass ratio of 1.1. SEM-EDS analysis was used to observe microstructure and phase distribution in reacted and water-quenched particles. As for the Cc/Ss samples collected at the point close to the gas blowing spot, 70–80 mass% Cu matte phase and heterogeneous slag phase including large amounts of magnetite (Mag) particles were formed. At the lower part from the gas blowing spot with a distance of 275 mm, 60–65 mass% Cu matte phase was confirmed. The area fraction of Mag particles in the slag phase decreased with increasing Py adding concentration in the mixture sample. Our results suggested the concentration and microscopic distribution of Py in the mixture including Cc contributed to control both Cu concentration in matter phase and Mag particle concentration in slag phase.","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82079982","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 : 2022-11-30DOI: 10.2473/journalofmmij.138.160
S. Fuchida, Shota Tajima, C. Tokoro
{"title":"Investigation on Effective Neutralization Process of Acid Mine Drainage Containing High Amount of Mn and Zn by Additions of δ-MnO2 Adsorbent and Oxidizing Agent","authors":"S. Fuchida, Shota Tajima, C. Tokoro","doi":"10.2473/journalofmmij.138.160","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.160","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"429 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79574887","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 : 2022-10-31DOI: 10.2473/journalofmmij.138.149
Yoshihiro Sasaki
{"title":"Evaluation of Operability in Tele-operation Control of a Hydraulic Cylinder by the Packet Compensation Method","authors":"Yoshihiro Sasaki","doi":"10.2473/journalofmmij.138.149","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.149","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74419933","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 : 2022-09-30DOI: 10.2473/journalofmmij.138.143
Chika Onishi, Shuto Yoshifuku, H. Takebe
{"title":"Effect of Melt Cooling Condition on As and Pb Elution Properties in Copper Slag","authors":"Chika Onishi, Shuto Yoshifuku, H. Takebe","doi":"10.2473/journalofmmij.138.143","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.143","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83202770","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 : 2022-08-31DOI: 10.2473/journalofmmij.138.134
N. Kinoshita, H. Yasuhara
{"title":"Observation of Calcium Carbonate Precipitation Process and the Permeability Experiments by EICP using Microfluidic Chip","authors":"N. Kinoshita, H. Yasuhara","doi":"10.2473/journalofmmij.138.134","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.134","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86220924","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 : 2022-08-31DOI: 10.2473/journalofmmij.138.129
T. Iseki, J. Kobayashi, J. Takahashi
{"title":"Effects of H2O to Reduction Reaction of Low Nickel Grade Oxide Ore","authors":"T. Iseki, J. Kobayashi, J. Takahashi","doi":"10.2473/journalofmmij.138.129","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.129","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81826108","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 : 2022-07-28DOI: 10.2473/journalofmmij.138.103
M. Kameyama, Y. Tawara, Takafumi Yoshida, Taichi Matsuura, Sayako Miyayoshi
{"title":"Examination of Source Control Measures by Applying Groundwater Flow Analysis to Abandoned Mines in Japan","authors":"M. Kameyama, Y. Tawara, Takafumi Yoshida, Taichi Matsuura, Sayako Miyayoshi","doi":"10.2473/journalofmmij.138.103","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.103","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86533834","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 : 2022-06-30DOI: 10.2473/journalofmmij.138.70
N. Kinoshita, H. Yasuhara, R. Yatabe, Hajime Kagayama
{"title":"Design Methodology and Performance Evaluation of High Energy Absorbing Rockfall Protection Net by Full-Scale Experiments and Dynamic Analysis","authors":"N. Kinoshita, H. Yasuhara, R. Yatabe, Hajime Kagayama","doi":"10.2473/journalofmmij.138.70","DOIUrl":"https://doi.org/10.2473/journalofmmij.138.70","url":null,"abstract":"","PeriodicalId":16502,"journal":{"name":"Journal of Mmij","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82490432","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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