Results 41 to 50 of about 91,473 (196)

Process Mineralogy of Mud Fraction in Deep Sea Rare Earth

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of process mineralogy. Deep sea rare earths are the fourth deep-sea mineral resource after polymetallic nodules, cobalt rich crusts and polymetallic sulphides.
Xiaoyu Li   +5 more
doaj   +1 more source

Geomorphology of the Clarion Clipperton Zone, tropical North Pacific Ocean

open access: yesJournal of Maps, 2021
The Clarion Clipperton Zone (CCZ) hosts a valuable deposit of polymetallic nodules. Understanding the geology of this deposit is key to its effective exploration and future mining.
John Parianos, Pedro Madureira
doaj   +1 more source

Cobalt and Manganese Extraction from Ocean Nodules by Co-Processing with Steel Metallurgical Slag

open access: yesMetals, 2023
Polymetallic nodules, also called manganese nodules (due to their high content of this element), contain various valuable metals such as Cu, Ni and Co. These seabed minerals are a good alternative source of Co and Mn due to the decrease in the grade of ...
Kevin Pérez   +7 more
doaj   +1 more source

Slurry electrolysis of ocean polymetallic nodule

open access: yesTransactions of Nonferrous Metals Society of China, 2010
Abstract The ocean poly-metallic nodule was leached by using slurry electrolysis process in HCl-NaCl medium. The leaching rates of Mn, Co, Cu and Ni in the ocean poly-metallic nodule are all above 97%. Meanwhile, the high purity of electrolytic MnO 2 is also obtained as an anode product.
Cheng-yan WANG   +4 more
openaire   +1 more source

Anomalous oxygen concentration increases in benthic experiments from the Clarion Clipperton Zone are not related to polymetallic nodules [version 1; peer review: 2 approved, 1 not approved]

open access: yesF1000Research
* Background Polymetallic nodules in the deep sea of the Clarion Clipperton zone (CCZ) have been implicated in the abiotic production of oxygen during benthic chamber respirometer experiments.
Alexander P. Webber   +5 more
doaj   +1 more source

Impact of small-scale disturbances on geochemical conditions, biogeochemical processes and element fluxes in surface sediments of the eastern Clarion–Clipperton Zone, Pacific Ocean [PDF]

open access: yesBiogeosciences, 2020
The thriving interest in harvesting deep-sea mineral resources, such as polymetallic nodules, calls for environmental impact studies and, ultimately, for regulations for environmental protection.
J. B. Volz   +5 more
doaj   +1 more source

Key Seabed Collection Technologies for Commercial Exploitation of Deep-Sea Polymetallic Nodules: Advances and Prospects [PDF]

open access: yes中国工程科学
Driven by the carbon peaking and carbon neutrality goals as well as the accelerated development of new quality productive forces, the supply-demand tension of critical metals has become increasingly pronounced. As a strategic successor resource, deep-sea
Lubao Luan   +6 more
doaj   +1 more source

A new process for leaching metal values from ocean polymetallic nodules

open access: yes, 2005
A new process for leaching metal values from ocean polymetallic nodules is introduced in this paper. The novel process consists of a few parts as follows: The liquid-phase oxidation of the ocean polymetallic nodules in the presence of oxygen by utilizing
Wang, Y, Li, Z, Li, H
core   +1 more source

Bioprocessing of polymetallic Indian ocean nodules using a marine isolate

open access: yes, 2004
Polymetallic Indian Ocean nodules offer a lucrative resource for valuable strategic metals like Cu, Co and Ni. A novel bioleaching process to recover those metals from the nodules at near-neutral pH and ambient temperature is presented in this paper. The
Modak, Jayant M.   +3 more
core   +2 more sources

Response to “Cautionary Tales for Science‐Based Policy in Deep‐Sea Mining Governance”

open access: yesGlobal Policy, EarlyView.
ABSTRACT The policy analysis article “Cautionary Tales for Science‐Based Policy in Deep‐Sea Mining Governance” by Villar‐Muñoz (2026), https://doi.org/10.1111/1758‐5899.70185, addresses what the author perceives as “low‐certainty claims” in the context of deep‐sea mining and contrasts them with perceived “realistic scenarios” to argue that additional ...
Walter Geibert
wiley   +1 more source

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