Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Yunzhang Rao"'
Autor:
Guozhu Rao, Yunzhang Rao, Jiazheng Wan, Qiang Huang, Yangjun Xie, Qiande Lai, Zhihua Yang, Run Xiang, Laiye Zhang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Rockburst present substantial hazards in both deep underground construction and shallow depths, underscoring the critical need for accurate prediction methods. This study addressed this need by collecting and analyzing 69 real datasets of ro
Externí odkaz:
https://doaj.org/article/a940d524f867466e8d206307bdc33d30
Publikováno v:
Metals, Vol 14, Iss 10, p 1130 (2024)
In the in-situ leaching method of ionic rare earth, ion exchange reaction between rare earth ions and leaching agent ions is carried out, which allows the rare earth ions to be leached from the ore body as the leaching solution flows through the pore
Externí odkaz:
https://doaj.org/article/9ee9c2ad49fe4d7eae20056e4474f8d5
Publikováno v:
Metals, Vol 13, Iss 11, p 1906 (2023)
As an important substitute for ammonium-free leaching, magnesium sulfate is applied as a leaching agent for the mining of ion-adsorbed REE (rare earth element) deposits. Upon deriving the equation regulating the leaching kinetics on the basis of the
Externí odkaz:
https://doaj.org/article/5690b6b557674e9fa5e561ab719fa171
Publikováno v:
Geofluids, Vol 2023 (2023)
Ion-absorbed rare earth deposits react with the leaching agent during the in situ leaching process through ion exchange and hydration, which change the stability of ore agglomerates and even result in mining slopes or landslides. Indoor simulated col
Externí odkaz:
https://doaj.org/article/b24333d9bf8d40c38c97c9da3ab782c0
Publikováno v:
International Journal of Chemical Engineering, Vol 2023 (2023)
In this study, we performed a comparative analysis of the combustion behavior of pyrite, pyrrhotite, and pyrite-pyrrhotite mixture (mixed mineral) powders in an air atmosphere. To study the influence of the pyrrhotite content in mixed mineral powders
Externí odkaz:
https://doaj.org/article/68288337af1449ed87ac2f22347c2945
Publikováno v:
Adsorption Science & Technology, Vol 2023 (2023)
In order to simulate and calculate the leaching process of ionic rare earths more realistically, a digital model of ionic rare earths with real size, shape, seepage channel, and pore ratio and distribution at the mesoscopic scale was constructed base
Externí odkaz:
https://doaj.org/article/74af413f57de4268bb20818c7027afb3
Publikováno v:
Minerals, Vol 13, Iss 8, p 1035 (2023)
The ionic rare earth (RE) ore body undergoes particle transport and pore structure change during the leaching process, resulting in "uneven percolation, preferential channel, leaching blind area," and other problems, leading to structural changes in
Externí odkaz:
https://doaj.org/article/3ad1866aeeff46e59e3f271a12636a6b
Publikováno v:
Minerals, Vol 13, Iss 6, p 733 (2023)
During in-situ mining and leaching of ionic rare earth ore, a chemical replacement reaction occurs between the leaching agent and rare earth ore. The thickness of the shear layer on the surface of colloidal particles is an important physical paramete
Externí odkaz:
https://doaj.org/article/91ae9837461148a4ba06562e8c1ea180
Publikováno v:
Geofluids, Vol 2022 (2022)
The change of permeability coefficient of ionic rare earth ore is one of the most important factors causing the uncontrollable flow of leaching solution, and the variation of pore structure of the ore body has a great influence on the permeability co
Externí odkaz:
https://doaj.org/article/d9bd209566484b89803dffed4075390d
Publikováno v:
Journal of Chemistry, Vol 2022 (2022)
To assess the thermal transformation process of common sulfide minerals in a nitrogen atmosphere, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy, and thermogravimetric mass spectrometry are employed to define the influenc
Externí odkaz:
https://doaj.org/article/351d2839c5534eebbbd6b573582b2866