Results 21 to 30 of about 1,481 (207)
Heat stress management in underground mines
International Journal of Mining Science and Technology, 2017 Heat management must be maintained within the mine working environment to minimize stress on equipment and personnel. The issue is a growing concern as mines continue to expand in size, depth and infrastructure. Heat management is a concern as it relates
Anderson Ryan, De Souza Euler
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Analysis of Methane–Air Mixture Dynamics in a Dead-End Drift Ventilated Using an Exhaust System
Computation, 2022 The dynamics of methane–air mixtures in a dead-end drift of a potash mine are investigated in this study. Methane release is associated with the destruction of potash ore during mining operations. The studied dead-end drift is ventilated using an exhaust
Mikhail Semin, Aleksey Isaevich
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“Ural-20R” combines loading drives evaluation in two-stage development of the face
Записки Горного института, 2020 The technological features of the use of high-performance Ural-20R combines in the conditions of potash mines in Russia are described. It is shown that when the capacity of the worked potash seams is over 4 m, a two-layer ore extraction is used.
Dmitriy I. SHISHLYANNIKOV +2 more
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How Insoluble Inclusions and Intersecting Layers Affect the Leaching Process within Potash Seams
Applied Sciences, 2021 Potash seams are a valuable resource containing several economically interesting, but also highly soluble minerals. In the presence of water, uncontrolled leaching can occur, endangering subsurface mining operations.
Svenja Steding +2 more
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Organizational structures of mining companies: composition and development [PDF]
SHS Web of Conferences, 2021 The organizational structures of large companies from the same industry are typical. But the geographic, economic and political conditions of activity impose some particularities on them.
Yaschenko Sergei +2 more
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Detecting mining-induced ground deformation and associated hazards using spaceborne InSAR techniques
Geomatics, Natural Hazards & Risk, 2018 The Delaware Basin, an evaporite sequence spanning west Texas and southeast New Mexico, is well known for the mining of potassium salts, known as potash. Several companies operate mines in the region, primarily using room-and-pillar techniques.
Albert Zhang, Jason Lu, Jin-Woo Kim
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Rediscovering Sodium Ionophores as Selective Agents for Lithium Recognition and Extraction
Angewandte Chemie, EarlyView.Long‐classified sodium ionophores unexpectedly prefer lithium and act as efficient extractants in solid–liquid extraction (SLE). Readily prepared from catechol and haloacetamides, these hosts recover hydrated LiCl from multicomponent salt mixtures via a hydration‐assisted O···Li+ binding mode, enabling scalable lithium separation with Li/Na, Li/K, and ...
Jakub Narodowiec +6 more
wiley +2 more sources
Diversity of Microorganisms in Biocrusts Surrounding Highly Saline Potash Tailing Piles in Germany
Microorganisms, 2021 Potash tailing piles located in Germany represent extremely hypersaline locations that negatively affect neighbouring environments and limit the development of higher vegetation.
Ekaterina Pushkareva +3 more
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Microorganisms, 2020 Potash tailing piles caused by fertilizer production shape their surroundings because of the associated salt impact. A previous study in these environments addressed the functional community “biocrust” comprising various micro- and macro-organisms ...
Veronika Sommer +3 more
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Resolving the Conflict between Mining and Sustainability
Applied Environmental Research, 2019 Mining is essential for human health and prosperity, and is increasing as the global population grows. The need for minerals appears to conflict with what is commonly understood as ‘sustainability’, as geological resources are non-renewable on a human ...
David A. C. Manning
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