Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound
A new method for copper metal dissolution by simultaneous use of oxygen and ultrasound was proposed to enhance the copper dissolution rate in sulfuric acid (H2SO4). The influence factors such as ultrasonic power, oxygen flow rate, reaction temperature, initial copper ion (Cu2+) and H2SO4 concentrati...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542302080X |
| _version_ | 1827780456738717696 |
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| author | Genrong Sun Mingqing Jiang Shixing Wang Likang Fu Yonggang Zuo Gengwei Zhang Zengkai Hu Libo Zhang |
| author_facet | Genrong Sun Mingqing Jiang Shixing Wang Likang Fu Yonggang Zuo Gengwei Zhang Zengkai Hu Libo Zhang |
| author_sort | Genrong Sun |
| collection | DOAJ |
| description | A new method for copper metal dissolution by simultaneous use of oxygen and ultrasound was proposed to enhance the copper dissolution rate in sulfuric acid (H2SO4). The influence factors such as ultrasonic power, oxygen flow rate, reaction temperature, initial copper ion (Cu2+) and H2SO4 concentration was studied to study the dissolution behaviour of copper metal. The dissolution rate of Cu could reach 7.52 g h−1 L−1 after the ultrasonic strengthening, which is 1.83 times higher than that without ultrasonic irradiation (4.109 g h−1 L−1). The study of leaching kinetics found that the Cu leaching process with and without ultrasound were both controlled by surface chemical reaction. The ultrasound could significantly reduce the apparent activation energy of the leaching reaction from 43.52 kJ mol−1 to 28.40 kJ mol−1. Characteristics revealed that the cavitation effect of ultrasound could increase the specific surface area of copper metal and oxygen bubble, and enhance the oxidizing capability of this leaching system, which is beneficial for the dissolution of Cu. Therefore, ultrasonic-assisted technology has provided novel insights for the hydrometallurgical recovery of copper. |
| first_indexed | 2024-03-11T15:05:51Z |
| format | Article |
| id | doaj.art-8471821e4dd641aba675434f85edb967 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:05:51Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-8471821e4dd641aba675434f85edb9672023-10-30T06:04:03ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012650165027Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasoundGenrong Sun0Mingqing Jiang1Shixing Wang2Likang Fu3Yonggang Zuo4Gengwei Zhang5Zengkai Hu6Libo Zhang7Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China; Fujian Zijin Copper Foil Technology Co., Ltd, Longyan, 364000, Fujian, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, China; Corresponding author. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China.Fujian Zijin Copper Foil Technology Co., Ltd, Longyan, 364000, Fujian, ChinaFaculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, Yunnan, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, China; Corresponding author. National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, 650093, Yunnan, China.A new method for copper metal dissolution by simultaneous use of oxygen and ultrasound was proposed to enhance the copper dissolution rate in sulfuric acid (H2SO4). The influence factors such as ultrasonic power, oxygen flow rate, reaction temperature, initial copper ion (Cu2+) and H2SO4 concentration was studied to study the dissolution behaviour of copper metal. The dissolution rate of Cu could reach 7.52 g h−1 L−1 after the ultrasonic strengthening, which is 1.83 times higher than that without ultrasonic irradiation (4.109 g h−1 L−1). The study of leaching kinetics found that the Cu leaching process with and without ultrasound were both controlled by surface chemical reaction. The ultrasound could significantly reduce the apparent activation energy of the leaching reaction from 43.52 kJ mol−1 to 28.40 kJ mol−1. Characteristics revealed that the cavitation effect of ultrasound could increase the specific surface area of copper metal and oxygen bubble, and enhance the oxidizing capability of this leaching system, which is beneficial for the dissolution of Cu. Therefore, ultrasonic-assisted technology has provided novel insights for the hydrometallurgical recovery of copper.http://www.sciencedirect.com/science/article/pii/S223878542302080XCopperDissolutionH2SO4OxygenUltrasound |
| spellingShingle | Genrong Sun Mingqing Jiang Shixing Wang Likang Fu Yonggang Zuo Gengwei Zhang Zengkai Hu Libo Zhang Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound Journal of Materials Research and Technology Copper Dissolution H2SO4 Oxygen Ultrasound |
| title | Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound |
| title_full | Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound |
| title_fullStr | Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound |
| title_full_unstemmed | Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound |
| title_short | Enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound |
| title_sort | enhancement of copper metal dissolution in sulfuric acid solution with oxygen and ultrasound |
| topic | Copper Dissolution H2SO4 Oxygen Ultrasound |
| url | http://www.sciencedirect.com/science/article/pii/S223878542302080X |
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