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1966•Journal of the Korean Chemical SocietyRequires access

Aqueous oxidation of sulfide ore (part 1) Aqueous Oxidation of Marmatite in Ammonia Solution

Dong-Seon Kim, Tae-Seong Chang, Yong‐Bok Lee

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Abstract

By means of aqueous oxidation in ammonia solution, metallic zinc and sulfur in marmatite were leached. In this study, it was found that the concentration of ammonia was extremely influenced on the oxidation ratio of Zn and S, and the more the leaching temperature was low, the more their leaching ratio was decreased. The maximum leaching ratio to the contents in marmatite was obtained at the following conditions. Particle size 270 mesh above, conc, 25%, Press. 4.2 kg/, Temp., Time 20hrs. Leaching ratio; Zn 55% and S 50%.

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What this paper is about

By means of aqueous oxidation in ammonia solution, metallic zinc and sulfur in marmatite were leached. In this study, it was found that the concentration of ammonia was extremely influenced on the oxidation ratio of Zn and S, and the more the leaching temperature was low, the more their leaching ratio was decreased. The maximum leaching ratio to the contents in marmatite was obtained at the following conditions. Particle size 270 mesh above, conc, 25%, Press. 4.2 kg/, Temp., Time 20hrs. Leaching ratio; Zn 55% and S 50%.

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Available abstract

By means of aqueous oxidation in ammonia solution, metallic zinc and sulfur in marmatite were leached. In this study, it was found that the concentration of ammonia was extremely influenced on the oxidation ratio of Zn and S, and the more the leaching temperature was low, the more their leaching ratio was decreased. The maximum leaching ratio to the contents in marmatite was obtained at the following conditions. Particle size 270 mesh above, conc, 25%, Press. 4.2 kg/, Temp., Time 20hrs. Leaching ratio; Zn 55% and S 50%.

Key concepts: Leaching (pedology), Ammonia, Aqueous solution, Chemistry, Sulfide, Inorganic chemistry, Sulfur, Metal

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