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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Extraction of copper and gold from anode slime of Sarcheshmeh Copper Complex
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Extraction of copper and gold from anode slime of Sarcheshmeh Copper Complex

机译：铜络合物阳极粘液提取铜和金

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摘要

A hydrometallurgical route was developed to extract metals such as gold, silver, copper, and selenium from anode slime from Sarcheshmeh Copper Complex in Iran. For the extraction of copper by leaching, the anode slime was heated and stirred with 4 M sulphuric acid in the presence of oxygen. Optimal conditions for recovery of copper were temperature 80°C, mixing time 5 hours, and oxygen flow rate 2 L/min, resulting in a copper recovery of 94.47%. Silver and selenium were dissolved by leaching anode slime from which the copper had been removed with nitric acid. For gold extraction, anode slime was heated with aqua regia at 90°, and the gold then extracted with 2-ethyl-hexanol at a concentration of 0.5 M and phase ratio of 4. The extract was then stripped with soda solution at pH=10.5 and a phase ratio of 5. Finally, gold was recovered by precipitation with oxalic acid at a ratio of mass to volume 10 g/L. Total gold recovery was 80%.
机译：开发了一种氢型储备，以从伊朗的阶级铜综合体从阳极粘液中提取金属，例如金，银，铜和硒。 为了通过浸出萃取铜，在氧气存在下加热阳极粘液并用4M硫酸搅拌。 回收铜的最佳条件为温度80℃，混合时间5小时，氧气流速2L / min，导致铜回收率为94.47％。 通过浸出阳极粘合剂来溶解银和硒，用硝酸除去铜。 对于金萃取，在90°的水中加热阳极粘液，然后用2-乙基 - 己醇以0.5μm的浓度和4.然后在pH = 10.5溶液用苏打溶液剥离提取物，用2-乙基 - 己醇萃取。然后用pH = 10.5用苏打溶液剥离提取物，用2-乙基 - 己醇提取。然后在pH = 10.5时用苏打溶液剥离提取物。 并且相比为5.最后，通过用质量与10g / L的比例的草酸沉淀回收金。 总金回收率为80％。

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