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Synthesis of Functionalized Schwertmanite and Its Adsorption Behavior of Arsenic from Leaching Solution of Gold with Copper(Ⅱ)-Ethylenediamine-Thiosulfate
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Jiao LI1, Rencong YANG1, Chi ZHANG1, Xinrong LI2, Futing ZI1
Mining and Metallurgical Engineering | 2025, 45(3) : 136 - 141
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Mining and Metallurgical Engineering | 2025, 45(3): 136-141
• METALLURGY •
Synthesis of Functionalized Schwertmanite and Its Adsorption Behavior of Arsenic from Leaching Solution of Gold with Copper(Ⅱ)-Ethylenediamine-Thiosulfate
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Jiao LI1, Rencong YANG1, Chi ZHANG1, Xinrong LI2, Futing ZI1
Affiliations
  • 1.Faculty of Science, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
  • 2.Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
Published: 2025-06-01 doi: 10.3969/j.issn.0253-6099.2025.03.023
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As for the leaching solution of gold with copper(II)-ethylenediamine-thiosulfate, an adsorbent (TTAB@Sch) was prepared by modifying schwertmannite (Sch) with tetradecyltrimethylammonium bromide (TTAB), and applied to adsorb arsenic therein. The effects of Cu2+ concentration, ethylenediamine concentration, S2O32- concentration, solution pH and initial arsenic mass concentration on the adsorption of arsenic by TTAB@Sch were explored. The results show that with the addition of FeSO4·7H2O, KMnO4 and TTAB at amounts of 10, 1 and 2 g/L respectively, the prepared TTAB@Sch exhibits optimal adsorption behavior. As for the leaching solution with Cu2+ concentration of 5 mmol/L, ethylenediamine concentration of 12.5 mmol/L, initial arsenic mass concentration of 12.29 mg/L, and pH of 10, the adsorption rate of arsenic therein by TTAB@Sch can reach 87.2%. Furthermore, FT-IR and XPS analyses indicated that arsenic was likely adsorbed on TTAB@Sch by forming Fe—O—As.

schwertmannite  /  adsorption  /  thiosulfate  /  gold leaching  /  arsenic
Jiao LI, Rencong YANG, Chi ZHANG, Xinrong LI, Futing ZI. Synthesis of Functionalized Schwertmanite and Its Adsorption Behavior of Arsenic from Leaching Solution of Gold with Copper(Ⅱ)-Ethylenediamine-Thiosulfate[J]. Mining and Metallurgical Engineering, 2025 , 45 (3) : 136 -141 . DOI: 10.3969/j.issn.0253-6099.2025.03.023
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Year 2025 volume 45 Issue 3
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doi: 10.3969/j.issn.0253-6099.2025.03.023
  • Receive Date：2024-12-03
  • Online Date：2026-03-19
  • Published：2025-06-01
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  • Received：2024-12-03
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Affiliations
    1.Faculty of Science, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
    2.Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2025.03.023
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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