Mineralogical transformations in polymetallic nodules and the change of Ni, Cu and Co crystal-chemistry upon burial in sediments
Sign Up to like & getrecommendations! Published in 2020 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2020.04.012
Abstract: Abstract Polymetallic nodules from the Clarion and Clipperton Zone of the equatorial Pacific Ocean were studied using X-ray diffraction, X-ray absorption, Fourier-transformed infrared spectroscopy and transmission electron microscopy. This study includes nodules found at the… read more here.
Keywords: sediment depth; chemistry; sediment; polymetallic nodules ... See more keywords
Comminution of Polymetallic Nodules with a High-Pressure Water Jet
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15228228
Abstract: This paper presents an original method for the comminution of polymetallic nodules in a hydro-jet mill of our own design, having the water jet pressure in the range of 70–200 MPa. The best comminution results… read more here.
Keywords: polymetallic nodules; comminution polymetallic; water jet; jet ... See more keywords
The Recovery of Valuable Metals from Ocean Polymetallic Nodules Using Solid-State Metalized Reduction Technology
Sign Up to like & getrecommendations! Published in 2019 at "Minerals"
DOI: 10.3390/min10010020
Abstract: Ocean polymetallic nodules are oxide ores rich in Ni, Co, Cu, and Mn, which are valuable metals found in deep-sea mineral resources. Such non-ferrous metals do not exist in isolation, and producing concentrates using conventional… read more here.
Keywords: state; recovery; valuable metals; metals ocean ... See more keywords
Aspects of Estimation and Reporting of Mineral Resources of Seabed Polymetallic Nodules: A Contemporaneous Case Study
Sign Up to like & getrecommendations! Published in 2021 at "Minerals"
DOI: 10.3390/min11020200
Abstract: Exploration of seabed polymetallic nodules identifies the Clarion Clipperton Zone and the Indian Ocean Nodule Field to be of economic interest. Mineral resource estimation is important to the owner of the resource (all of mankind;… read more here.
Keywords: polymetallic nodules; reporting mineral; resource; seabed polymetallic ... See more keywords
Thermal Pre-Treatment of Polymetallic Nodules to Create Metal (Ni, Cu, Co)-Rich Individual Particles for Further Processing
Sign Up to like & getrecommendations! Published in 2018 at "Minerals"
DOI: 10.3390/min8110523
Abstract: Polymetallic nodules are a potential source of industrially demanded metals such as Ni, Co, Cu, and Mo (up to 3 wt %). Even if there is no deep-sea mining of manganese nodules today, a forecasted… read more here.
Keywords: metal; polymetallic nodules; treatment polymetallic; metal rich ... See more keywords
Simulation Experiment of Environmental Impact of Deep-Sea Mining: Response of Phytoplankton Community to Polymetallic Nodules and Sediment Enrichment in Surface Water
Sign Up to like & getrecommendations! Published in 2022 at "Toxics"
DOI: 10.3390/toxics10100610
Abstract: In this paper, simulation experiments were conducted to study the response of phytoplankton biomass and community composition to the influence of polymetallic nodules and sediment at four stations in the western Pacific in 2021. Chlorophyll… read more here.
Keywords: polymetallic nodules; nodules sediment; phytoplankton; impact ... See more keywords