Ultrasonic-Assisted Oxalic Acid Extraction of Copper from Plateau Red Soil and Tessier Speciation Evaluation

Yan Zheng; Xue Jin Zhou; Yun Tao Gao; Sheng Li Huang; Ruo Sen Yuan; Jian Hong Li; An Fei Hu

doi:10.4028/www.scientific.net/AMR.726-731.2368

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Ultrasonic-Assisted Oxalic Acid Extraction of...

Ultrasonic-Assisted Oxalic Acid Extraction of Copper from Plateau Red Soil and Tessier Speciation Evaluation

Abstract:

Abstract. The copper in plateau red soil was extracted by ultrasonic-assisted oxalic acid. Tessier fractional extraction method was used to evalute copper speciation. The result showed that the biggest extraction rate was 69%. Compared with oscillation extraction, the extraction rate of ultrasonic extraction was increased by 7.18% under the condition of 0.1 mol/L oxalic acid, 20:1 of liquid-solid ratio and 30 min of extraction time. Ultrasound could promote the oxalic acid extraction of copper from plateau red soil effectively, which could be attributed the success to the activation effect of ultrasound on bound to carbonates speciation and bound to iron and manganese speciation.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

2368-2371

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.2368

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Online since:

August 2013

Authors:

Yan Zheng, Xue Jin Zhou, Yun Tao Gao*, Sheng Li Huang, Ruo Sen Yuan, Jian Hong Li, An Fei Hu

Keywords:

Copper, Oxalic Acid, Plateau Red Soil, Ultrasound (US)

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