Feasibility of Type of Deep-Water Technologies for the Extraction of Marine Ferro-Manganese Nodules

Yungmeyster, D. A.; Sudarikov, S. M.; Kireev, K. A.

doi:10.31897/pmi.2019.1.88

Cited by 6 publications

(4 citation statements)

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“…The elements of the hydrothermal plume can be divided into conservative and nonconservative. Conservative elements (for example, 3 He) change their concentration in the plume exclusively due to dissolution. At the same time, non-conservative elements (including CH 4 ) can also change their concentration in the plume due to precipitation or transformation during various chemical and biochemical reactions (for example, microbial oxidation, etc.)…”

Section: Methane In Submarine Hydrothermal Solutionsmentioning

confidence: 99%

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Identification of Two New Hydrothermal Fields and Sulfide Deposits on the Mid-Atlantic Ridge as a Result of the Combined Use of Exploration Methods: Methane Detection, Water Column Chemistry, Ore Sample Analysis, and Camera Surveys

Sudarikov

Narkevsky²,

Petrov

2021

Minerals

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In 2018–2020 the research vessel (R/V) Professor Logachev (cruises 39 and 41) carried out geological and geochemical studies in the bottom waters of the Mid-Atlantic Ridge hydrothermal fields at 14°45’ N, 13°07’ N, and 13°09’ N. Two new hydrothermal fields were discovered—the Molodezhnoye and Koralovoye. Standard conductivity, temperature, and depth (CTD) sounding with a methane sensor was accompanied by video surveillance and sampling of rocks and water. The rocks were characterized by a zonal composition with opal and sulfides of copper and zinc. An increase in methane concentration values was accompanied by CTD anomalies in the bottom waters. The methane anomaly was formed within the hydrothermal plume of both high-temperature and low-temperature systems. Methane was almost absent in the plume of neutral buoyancy and was associated in all the studied manifestations with the ascending flow of hot waters over the hydrothermal vents. The hydrothermal plumes were characterized by increased Cu, Zn, and Fe concentrations at background Mn concentrations. Signs of low-temperature hydrothermal activity were also observed. Different sources and mechanisms are required to explain the elevated concentrations of base metals and methane in the hydrothermal plumes.

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Section: Methane In Submarine Hydrothermal Solutionsmentioning

confidence: 99%

“…Since the end of the 1970s, numerous studies have been carried out on polymetallic sulfides and metalliferous sediments across the ocean floor. As a result, more than 500 hydrothermal fields have been discovered globally [1,2], and research has begun on the feasibility of developing ocean mineral resources [3].…”

Section: Introductionmentioning

confidence: 99%

Identification of Two New Hydrothermal Fields and Sulfide Deposits on the Mid-Atlantic Ridge as a Result of the Combined Use of Exploration Methods: Methane Detection, Water Column Chemistry, Ore Sample Analysis, and Camera Surveys

Sudarikov

Narkevsky²,

Petrov

2021

Minerals

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“…The ratio of reserves growth due to exploration to production in 2020 was 0.21 (Table 1). Currently, the problems of rational use of iron ore raw materials [5] both at the stage of mining works [6][7][8] and at the stage of metallurgy attract the close attention of researchers [9][10][11]. One of the key factors in increasing the efficiency of production is the introduction of digital technologies [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Mineralogical and technological features and patterns of selective disintegration of ferruginous quartzites of the Mikhailovskoye deposit

Aleksandrova

Chanturiya²,

Kuznetsov

2022

PMI

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The growing demand for ferrous metallurgy products necessitates the introduction of technologies that increase the efficiency of the processing of iron-bearing raw materials. A promising trend in this area is the implementation of solutions based on the possibility of selective disintegration of ores. The purpose of this work was to establish the laws of selective disintegration of ferruginous quartzites based on the results of the study of mineralogical and technological properties of raw materials. We present data on the study of mineralogical and technological features of ferruginous quartzites of the Mikhailovskoye deposit. The data were obtained using X-ray fluorescence analysis and automated mineralogical analysis. Based on studies of the nature of dissemination and the size of grains of rock-forming and ore minerals, the tasks of ore preparation are formulated. The parameters for the iron and silicon oxide distribution by grain-size classes in the grinding products were established during the study. Based on empirical dependences, the grain size of grinding was predicted, at which the most effective release of intergrowths of ore minerals and their minimum transition to the size class of –44 µm should be achieved.

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“…71percent of the total surface of the earth is covered by the oceans, where most of the seafloor reveals mineral deposits of economic interest, such as cobalt-rich crusts, polymetallic hydrometallurgical sulphides, and manganese nodules, reaching 1 to3 billion tonsof majormetal reserves can be found, such as Cu, Ni, Co, Fe and Mn, where the latter is most abundant, with an average content of around 24% [1]. [2]have installed pilot equipment that provides a realistic opportunity for marine nodules extraction, and previous studies,such as those carried out by [3]have already established that hydrometallurgical processes are a viablealternative for processing this mineral matrix, where manganese is obtained by selective precipitation after sulphating roasting.The use of iron as a reducing agent stands out by the abundance and positive results as shown by the authors over the past 20 years [4,5,6]. [7]investigated the effect of working with elemental Fe as a reducing agent at low H 2 SO 4 rates.…”

Section: Introductionmentioning

confidence: 99%

Use of tailings in mn dissolution from marine nodule matrix

Herrera

Toro

2021

E3S Web Conf.

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The nodules are spherical bodies that are scattered within the sedimentary zone of the seabed, and their growth is closely associated with the biogeochemical processes and water sediments. These nodules are mainly composed of Mn, Fe, SiO2, Ca, Ni, Cu, Co and Al. Manganese nodules are an excellent source of base metals and sought-after and rare elements and the fact that they are used as a base elements matrix will be in high demand in industry. Previous studies have shown that primary con-centrations of chemical such as Fe in the system are beneficial for increas-ing manganese extraction. However, it is necessary to optimize the opera-tional parameters so as to maximise Mn recovery. This work investigates the effect of using of tailings, obtained after slag flotation ata foundry plant on the dissolution of Mn from marine nodules, where statistical analysis was distributed using factorial experimental design ontime, MnO2/Fe2O3 ratio, and H2SO4 concentration.

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Feasibility of Type of Deep-Water Technologies for the Extraction of Marine Ferro-Manganese Nodules

Cited by 6 publications

References 0 publications

Identification of Two New Hydrothermal Fields and Sulfide Deposits on the Mid-Atlantic Ridge as a Result of the Combined Use of Exploration Methods: Methane Detection, Water Column Chemistry, Ore Sample Analysis, and Camera Surveys

Identification of Two New Hydrothermal Fields and Sulfide Deposits on the Mid-Atlantic Ridge as a Result of the Combined Use of Exploration Methods: Methane Detection, Water Column Chemistry, Ore Sample Analysis, and Camera Surveys

Mineralogical and technological features and patterns of selective disintegration of ferruginous quartzites of the Mikhailovskoye deposit

Use of tailings in mn dissolution from marine nodule matrix

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