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| Experimental study on the extraction of copper from high acid copper nitrate system by LIX984 |
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Received:December 02, 2013
Revised:December 05, 2013
Accepted:December 11, 2013
Published Online:August 10, 2015
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| DOI： |
| KeyWord:LIX984; extraction; HNO3-Cu(NO3)2 system |
| Author | Institution |
| wuxiaoming |
Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technolog |
| SHEN Qiang-hua |
Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technology |
| CHEN Wen |
Faculty of Metallurgical and Energy Engineering of Kunming University of Science and Technology |
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| Abstract: |
| In view of the high acid HNO3-Cu(NO3)2 system, this paper adopts the way of two stage extraction to recover copper by LIX984. Through the study of the optimization of the main factors influencing the extraction experiment , the first extraction optimum experiment conditions are obtained: the initial pH value of the aqueous phase is 2.0、the volume of extractant concentration is 30%、the phase ratio is 2:1、the extraction temperature is 25℃、time of agitating is 4mins; the second extraction optimum experiment conditions is : the initial pH value of the aqueous phase is 2.0、the volume of extractant concentration is 10%、the phase ratio is 1:1、the extraction temperature is 25℃、time of agitating is 2mins. At this time, the total recovery rate of copper reached 99.5%. Compared with copper nitrate electric product, precipitation and the displacement method, this technology has some advantages ,such as simple process、low cost、 high copper recovery and no secondary pollution ,etc. |
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