Ultrasonic-Assisted Oxalic Acid Extraction of Copper from Plateau Red Soil and Tessier Speciation Evaluation
2013 ◽
Vol 726-731
◽
pp. 2368-2371
Keyword(s):
Red Soil
◽
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.
2013 ◽
Vol 781-784
◽
pp. 2301-2304
2011 ◽
Vol 396-398
◽
pp. 292-296
2012 ◽
Vol 518-523
◽
pp. 1800-1803
Keyword(s):
2012 ◽
Vol 468-471
◽
pp. 2423-2430
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Optimization of Ultrasonic-Assisted Enzymatic Extraction of Tannic Acid from Chromolaena Odorota sp.
2021 ◽
Vol 2129
(1)
◽
pp. 012081