{"title":"Active Prefracture Methods Top Coal Caving Technologies for Thick Gently Dipping Seams","authors":"","doi":"10.15372/ftprpi20200308","DOIUrl":"https://doi.org/10.15372/ftprpi20200308","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80568544","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}
{"title":"Influence of Particle Size Distribution of Coal on Methane Release in High-Output Longwalls","authors":"","doi":"10.15372/ftprpi20200516","DOIUrl":"https://doi.org/10.15372/ftprpi20200516","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90587722","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}
{"title":"Selective Attachment of Luminophore-Bearing Emulsion to Diamonds-Mechanism Analysis and Mode Selection","authors":"","doi":"10.15372/ftprpi20200111","DOIUrl":"https://doi.org/10.15372/ftprpi20200111","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89684545","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}
{"title":"Modeling Software for Hydraulic Fracturing in Solid Mineral Mining","authors":"","doi":"10.15372/ftprpi20200523","DOIUrl":"https://doi.org/10.15372/ftprpi20200523","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79981679","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}
{"title":"Probabilistic Assessment of Slope Stability in Rocky Ground Using the Generalized Hoek-Brown Failure Criterion","authors":"","doi":"10.15372/ftprpi20200508","DOIUrl":"https://doi.org/10.15372/ftprpi20200508","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76912561","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}
{"title":"Influence of Coal Microstructure on Gas Saturation in Face Area","authors":"","doi":"10.15372/ftprpi20200303","DOIUrl":"https://doi.org/10.15372/ftprpi20200303","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81361958","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}
V. Chanturia, V. Minenko, A. Samusev, E. Koporulina, M. Ryazantseva
—The values of pH, temperature and initial concentrations of valuable components have influence on recovery efficiency of zirconium and rare earth elements (REE) from pregnant solutions of nitric-acid leaching of eudialyte concentrate by the chemical deposition method. Zirconium and rare earths exhibit selective recoverability of 99.95% and 87.50%, respectively. The loss of REE is 8.0% with zirconium product and 4.5% with pregnant solution. Micromorphology, structural chemistry and chemical composition of products are analyzed using the scanning electron microscopy, IR spectroscopy and X-ray fluorescence analysis.
{"title":"Zirconium and Rare Earths Recovery from Eudialyte Concentrate Leaching Solution","authors":"V. Chanturia, V. Minenko, A. Samusev, E. Koporulina, M. Ryazantseva","doi":"10.15372/ftprpi20200413","DOIUrl":"https://doi.org/10.15372/ftprpi20200413","url":null,"abstract":"—The values of pH, temperature and initial concentrations of valuable components have influence on recovery efficiency of zirconium and rare earth elements (REE) from pregnant solutions of nitric-acid leaching of eudialyte concentrate by the chemical deposition method. Zirconium and rare earths exhibit selective recoverability of 99.95% and 87.50%, respectively. The loss of REE is 8.0% with zirconium product and 4.5% with pregnant solution. Micromorphology, structural chemistry and chemical composition of products are analyzed using the scanning electron microscopy, IR spectroscopy and X-ray fluorescence analysis.","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83446845","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}
{"title":"Performance Analysis of a Digitally Retrofitted Ward-Leonard Control Dragline-A Case Study in Coal Mine","authors":"","doi":"10.15372/ftprpi20200107","DOIUrl":"https://doi.org/10.15372/ftprpi20200107","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88285902","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}
{"title":"Generation of Particle Size Distribution in Fragmentation of Broken Rocks in Bench Blasting","authors":"","doi":"10.15372/ftprpi20200105","DOIUrl":"https://doi.org/10.15372/ftprpi20200105","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75780597","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}
{"title":"Dynamics of Roof Rock Displacement in a Stope in the Course of Mining","authors":"","doi":"10.15372/ftprpi20200101","DOIUrl":"https://doi.org/10.15372/ftprpi20200101","url":null,"abstract":"","PeriodicalId":24070,"journal":{"name":"Физико-технические проблемы разработки полезных ископаемых","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74179262","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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