Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
3.9
2.5
Journals
Minerals
Special Issues
Development Methods and Technologies Used in Deep-Sea Mining
share announcement

Development Methods and Technologies Used in Deep-Sea Mining

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Mineral Processing and Extractive Metallurgy".

Deadline for manuscript submissions: closed (25 November 2022) | Viewed by 3286

Special Issue Editors

Prof. Dr. Tetsuo Yamazaki

E-Mail Website
Guest Editor
Department of Marine Systems Engineering, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
Interests: technical and economic evaluation of deep-sea mining; ecosystem modeling of deep-sea floor; strategic R&D planning of economical deep-sea mining
Special Issues, Collections and Topics in MDPI journals
Dr. Sup Hong

E-Mail Website
Guest Editor
Principal Researcher, Ocean and Maritime Digital Technology Research Division, Korea Research Institute of Ships & Ocean Engineering, Daejeon, Republic of Korea
Interests: deep-sea mining technologies; miner mechanics; hydraulic lifting; system integrations
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the increasing demand of critical metals for green energy alternatives, as well as for supporting industrialized human society and sustainable development, interest in deep-sea mining for ferromanganese nodules, cobalt-rich ferromanganese crusts, seafloor massive sulfides, and rare-earth element-rich muds, has grown over the last 50 years. Although, due to certain economic and technical difficulties, commercial deep-sea mining has not been realized as yet, several research groups as well as private enterprises have become involved in the methods and technologies used in deep-sea mining. In the field of exploration in deep-sea mining, relatively new approaches were proposed for analyzing bulk data to quantify the best site for mining. While research on developing prototypes for deep-sea mining technology is underway, innovative techniques in robotics improved the possibility of deep-sea mining. Similarly, although several routes in metallurgical processing have been developed, an environmentally friendly method has yet to be established. In the field of environmental monitoring and the preservation of deep-sea ecosystem in deep-sea mining, studies on establishing baseline conditions were initiated, and small-scale experiments to predict potential impacts due to deep-sea mining were conducted, but the impacts of large-scale mining and ecosystem functioning are not yet understood.

Dr. Tetsuo Yamazaki
Dr. Sup Hong
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • cobalt-rich ferromanganese crusts
  • ferromanganese nodules
  • rare-earth element-rich muds
  • seafloor massive sulfides
  • methods and technologies related to the exploration in deep-sea mining
  • methods and technologies related to the exploitation in deep-sea mining
  • methods and technologies related to environmental monitoring and the preservation of deep-sea ecosystem in deep-sea mining
  • economy of deep-sea mining

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

16 pages, 6624 KiB  
Article
Research on Recovery of Valuable Metals from Cobalt-Rich Crust Using Carbon as a Reduction Agent during the Acid Baking Process
by Da Li, Xunxiong Jiang, Shengdong Wang, Xudong Sun, Feng Zhao, Linyong Feng and Denggao Zhang
Minerals 2022, 12(10), 1215; https://doi.org/10.3390/min12101215 - 26 Sep 2022
Cited by 3 | Viewed by 1390
Abstract
Cobalt-rich crust is a seabed metal mineral resource that is different from oceanic polymetallic nodules. Based on the higher Co content than polymetallic nodules, the commercial value of cobalt-rich crust may be better than that of polymetallic nodules. Due to the special distribution [...] Read more.
Cobalt-rich crust is a seabed metal mineral resource that is different from oceanic polymetallic nodules. Based on the higher Co content than polymetallic nodules, the commercial value of cobalt-rich crust may be better than that of polymetallic nodules. Due to the special distribution of valuable metals, commercial implementation is always limited. Herein, a novel process is proposed to efficiently and, in an eco-friendly way, recycle valuable metals from cobalt-rich crust. The results indicate that carbon could promote the decomposition of manganite in the cobalt-rich crust during the acid baking process, and the leaching ratio of Mn could increase by 50% when carbon is added during acid baking. In addition, it can be found that the promotion of carbon for Co is stronger at low sulfuric acid consumption than that at high sulfuric acid consumption; however, there is no promotion of carbon for leaching Ni and Cu during the acid baking process. The leaching ratio of Ni, Co, Cu, Mn, and Fe reached 98.59%, 91.62%, 93.81%, 41.27%, and 26.94%, respectively, when the mass ratio of the sulfuric acid and cobalt-rich crust was 0.567, the mass ratio of the carbon and cobalt-rich crust was 0.1, the temperature was 200 °C and the time was 240 min. This research could provide an alternative economic process for recycling valuable metals from cobalt-rich crusts. Full article
(This article belongs to the Special Issue Development Methods and Technologies Used in Deep-Sea Mining)
►▼ Show Figures

Figure 1

18 pages, 3925 KiB  
Article
Numerical Simulation Study on the Relationships between Mineralized Structures and Induced Polarization Properties of Seafloor Polymetallic Sulfide Rocks
by Caowei Wu, Changchun Zou, Cheng Peng, Yang Liu, Tao Wu, Jianping Zhou and Chunhui Tao
Minerals 2022, 12(9), 1172; https://doi.org/10.3390/min12091172 - 17 Sep 2022
Cited by 1 | Viewed by 1322
Abstract
The induced polarization (IP) method plays an important role in the detection of seafloor polymetallic sulfide deposits. Numerical simulations based on the Poisson–Nernst–Planck equation and the Maxwell equation were performed. The effects of mineralized structures on the IP and electrical conductivity properties of [...] Read more.
The induced polarization (IP) method plays an important role in the detection of seafloor polymetallic sulfide deposits. Numerical simulations based on the Poisson–Nernst–Planck equation and the Maxwell equation were performed. The effects of mineralized structures on the IP and electrical conductivity properties of seafloor sulfide-bearing rocks were investigated. The results show that total chargeability increases linearly as the volume content of disseminated metal sulfides increases when the volume content is below 20%. However, total chargeability increases nonlinearly with increasing volume content in vein and massive metal sulfides when the volume content is below 30%. The electrical resistivity of disseminated metal sulfides mainly depends on the conductivity of pore water. The electrical resistivity of vein and massive sulfides mainly depends on the volume content and the length of sulfides. Increase in the aspect ratio (0.36 to 0.93) of seafloor massive sulfides causes relaxation time constants and total chargeability to decrease. Relaxation time constants and total chargeability also decrease with increase in the tortuosity of seafloor vein sulfides from 1.0 to 1.38. This study is of great value for the electrical survey of seafloor polymetallic sulfide deposits. Full article
(This article belongs to the Special Issue Development Methods and Technologies Used in Deep-Sea Mining)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop