Simultaneous Leaching of Seafloor Massive Sulfides and Polymetallic Nodules

被引：10

作者：

Kowalczuk, Przemyslaw B. ^{[1
]}

Bouzahzah, Hassan ^{[2
]}

Kleiv, Rolf Arne ^{[1
]}

Aasly, Kurt ^{[1
]}

机构：

[1] NTNU Norwegian Univ Sci & Technol, Dept Geosci & Petr, SP Andersens Veg 15a, N-7031 Trondheim, Norway

[2] Univ Liege, GeMMe, Allee Decouverte 9, B-4000 Liege, Belgium

来源：

MINERALS | 2019年 / 9卷 / 08期

关键词：

polymetallic nodules; seafloor massive sulfides; leaching; copper; manganese; deep-sea mining; MANGANESE NODULES; FERRIC SULFATE; CHALCOPYRITE; DISSOLUTION; KINETICS; EXTRACTION; DEPOSITS; COPPER; COBALT; ZINC;

D O I：

10.3390/min9080482

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Simultaneous leaching of seafloor massive sulfides (SMS) from Loki's Castle on the Arctic Mid-Ocean Ridge (AMOR) and polymetallic nodules (PN) from Clarion Clipperton Zone (CCZ) of the Central Pacific Ocean was studied. Leaching tests were conducted using sulfuric acid and sodium chloride, at a temperature of 80 degrees C for 48 h under reflux. The effect of PN-to-SMS ratio was examined. It was shown that simultaneous leaching of two different types of marine resources was possible resulting in high dissolution rates of metals. The proposed process has many advantages as it does not require pyrometallurgical pretreatment, and yields solid products (i.e., silica, barite, elemental sulfur, albite, microcline, muscovite), which might be utilized for various industrial applications.

引用

页数：12

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