INICIO  / anode slime leaching with thiourea

anode slime leaching with thiourea

(PDF) A Review on the Recovery of Noble Metals from

2019年2月13日  perized anode slime, it was found that Pb has some deleter- ious effects on the dissolution of gold and silver and increase the consumption of thiosulfate (Xu et al.

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Recovery of Gold and Silver from Copper Anode Slime

2007年2月15日  To extract the gold with thiourea, it is necessary to first remove the copper, selenium, tellurium, and most of the silver from the mixture. Once these elements are

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Leaching behavior of metals from copper anode slime

2015年10月1日  The leaching behavior of metals from copper anode slime was investigated using an alkali fusion-leaching process for the preliminary separation of metal values.

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Processing of anode slime with deep eutectic solvents as a

2021年11月1日  The results of chemical analysis revealed that the anode slime used in the leaching experiments contains a small amount of Ni, Sb, Sr, Zn, and Bi elements. In

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Gold recovery from copper anode slime by means of

2014年3月1日  Gold–thiourea solution. Leaching of gold in the copper anode slime is affected by some elements such as silver, iron, and selenium. Therefore, copper anode

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Leaching of Gold and Silver from Anode Slime with

2017年2月28日  Abstract. Leaching experiments of anode slime were performed with several inorganic acids (HCl, HNO_3 and H_2SO_4) together with thiourea and

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Hydrochemically separation of gold from Copper Anode

2023年5月4日  in the thiourea leaching of gold. Thiourea can form cationic complex with gold in the gold extraction process from copper anode slime. Thiourea consumption

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Leaching behavior of metals from copper anode slime

2015年10月1日  The leaching behavior of metals from copper anode slime was investigated using an alkali fusion-leaching process for the preliminary separation of metal values.

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Recovery of Silver and Gold from Copper Anode Slimes

2014年9月11日  Copper anode slimes are roasted at 600–800°C with sulfuric acid or oxygen, which depends on the composition of slimes. During the process, selenium is

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Leaching behavior of metals from copper anode slime

2015年10月1日  The alkali fusion-leaching of copper anode slime can extract about 97% Se, 98% As, 86% Sn and 76% Pb under the optimum conditions: NaOH/slime mass ratio of 2:1, NaNO 3 /slime mass ratio of 1:3, fusion temperature of 600 ... Thiourea solution was employed as leachant. All the gold content of copper anode slime was dissolved in

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Recovery of Gold and Silver from Copper Anode Slime

2007年2月15日  Abstract. This study has shown that gold and silver can be recovered from a complex anode slime containing copper, selenium, and tellurium, but a carefully planned leaching procedure is required. To extract the gold with thiourea, it is necessary to first remove the copper, selenium, tellurium, and most of the silver from the mixture.

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Recovery of scattered and precious metals from copper

2020年11月1日  DOI: 10.1016/j.hydromet.2020.105460 Corpus ID: 224896378; Recovery of scattered and precious metals from copper anode slime by hydrometallurgy: A review @article{Liu2020RecoveryOS, title={Recovery of scattered and precious metals from copper anode slime by hydrometallurgy: A review}, author={Gongqi Liu and Yufeng Wu and

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Modeling of Au Chlorination Leaching Kinetics from

2021年10月19日  This study showed the kinetics of gold chlorination leaching from an anode slime complex containing copper, silver, barium, selenium, and tellurium. AgCl and BaSO4 control the rate of gold leaching, and the interface transfer and diffusion across the product was selected as the desirable kinetic model. The concentration of hydrochloric

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Gold Recovery from Copper Anode Slime By

2014年3月1日  The highest Au dissolution percentage of 96.2 was obtained after 6 h of leaching with 40 g/L thiourea at 60 °C, pH 1, and pulp density of 20 g/L. Based on the results presented in this work, the ...

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利用双氧水为还原剂湿法浸出电解锰阳极泥中锰的研究

2021年9月12日  图 1 电解锰阳极泥与H 2 O 2 质量比对锰浸出率的影响 (固液比1∶10,电解锰阳极泥与H 2 SO 4 质量比1∶0.9,浸出温度45 ℃,浸出时间60 min) Figure 1. Effect of the mass ratio of electrolytic manganese anode slime (EMAS) to H 2 O 2 on the manganese leaching efficiency in EMAS

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Hydrochemically separation of gold from Copper Anode

2023年5月4日  between thiourea (TU) and H 2 O 2 in the thiourea leaching of gold. Thiourea can form cationic complex with gold in the gold extraction process from copper anode slime. Thiourea consumption levels were also examined during the leaching operations for different leaching parameters, i.e. solution volume, concentration ratio of

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Determination of gold in solutions of thiourea Analytical

2019年5月25日  Gold Recovery from its Flotation Concentrate using Acidic Thiourea Leaching and Organosilicon Polymer. International Journal of the Society of Materials ... Determination of gold in silver, copper, lead, selenium and anode slime by atomic-absorption spectrometry. Talanta 1980, 27 (8) , 655-658. DOI: 10.1016/0039-9140(80)80204-9. ...

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X-ray diffraction patterns of the copper anode slime.

After leaching experiments, 97% of copper was recovered from the copper anode slime using ChCl-urea under an optimum condition at 95 °C of reaction temperature, 4 h reaction duration and, 1/25 g ...

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Ag recovery from copper anode slime by acid leaching at

2014年3月1日  Sarcheshmeh anode slime is characterized by higher amount of Ag, Se, Pb and Cu compared to other metals with very low amount of Au. The price of anode slime is mainly determined by its Ag and Au while Pb and Se are also important in some cases [2]. Therefore, there is interest in studying methods for recovery of these metals from anode

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Recovery of Gold and Silver from Copper Anode Slime

2007年2月15日  Abstract. This study has shown that gold and silver can be recovered from a complex anode slime containing copper, selenium, and tellurium, but a carefully planned leaching procedure is required. To extract the gold with thiourea, it is necessary to first remove the copper, selenium, tellurium, and most of the silver from the mixture.

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Modeling of Au Chlorination Leaching Kinetics from

2021年10月19日  This study showed the kinetics of gold chlorination leaching from an anode slime complex containing copper, silver, barium, selenium, and tellurium. AgCl and BaSO4 control the rate of gold leaching, and the interface transfer and diffusion across the product was selected as the desirable kinetic model. The concentration of hydrochloric

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Gold Recovery from Copper Anode Slime By

2014年3月1日  The highest Au dissolution percentage of 96.2 was obtained after 6 h of leaching with 40 g/L thiourea at 60 °C, pH 1, and pulp density of 20 g/L. Based on the results presented in this work, the ...

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Extraction of copper and gold from anode slime

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

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Determination of gold in solutions of thiourea Analytical

2019年5月25日  Gold Recovery from its Flotation Concentrate using Acidic Thiourea Leaching and Organosilicon Polymer. International Journal of the Society of Materials ... Determination of gold in silver, copper, lead, selenium and anode slime by atomic-absorption spectrometry. Talanta 1980, 27 (8) , 655-658. DOI: 10.1016/0039-9140(80)80204-9. ...

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利用双氧水为还原剂湿法浸出电解锰阳极泥中锰的研究

2021年9月12日  图 1 电解锰阳极泥与H 2 O 2 质量比对锰浸出率的影响 (固液比1∶10,电解锰阳极泥与H 2 SO 4 质量比1∶0.9,浸出温度45 ℃,浸出时间60 min) Figure 1. Effect of the mass ratio of electrolytic manganese anode slime (EMAS) to H 2 O 2 on the manganese leaching efficiency in EMAS

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X-ray diffraction patterns of the copper anode slime.

After leaching experiments, 97% of copper was recovered from the copper anode slime using ChCl-urea under an optimum condition at 95 °C of reaction temperature, 4 h reaction duration and, 1/25 g ...

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v116n12a9 Extraction of copper and gold from anode

2017年4月26日  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

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EXTRACTING SILVER FROM ANODE SLIME AFTER LEAD

2018年12月15日  2009) published a review of anode slime processing, including anode slime leaching by sulfuric acid. Research on gold, silver and copper separation had been accomplished by Bard and Sobral (2008) using hydrochloric acid solution adding sodium hypochlorite solutions as an oxidizing agent. The goldand silver can be separated from

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