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| RESEARCH PROGRESS OF SOLVENT EXTRACTION OF GOLD FROM ALKALINE CYANIDE SOLUTION |
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Received:December 05, 2005
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| DOI： |
| KeyWord:solvent extraction; alkaline cyanide solution; cooperate extraction; guanidine extractant ; gold |
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| Zijin Mining Group Co. Ltd., Shanghang 364200, Fujian , China |
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| Abstract: |
| This paper summarizes the extraction and stripping systems of different varies of organic alamines,phosphine oxides,alkyl phosphate esters,two-mixed-cooperate extractants,liquid guanidine and resin guanidine.The extraction effect of two-mixed-cooperate extractants is better than the one of single extractant.The continuous resin in solution(RIS) extraction and elution tests on trial-bench scale and demonstrating plant scale were presented.The summary of the production and operating cost of RIS and CIS(carbon in solution) in the extracting gold from alkaline cyanide solution was listed in this paper.Because of better selectivity,less loss and easier stripping,the guanidine resin extractant is the worthiest of application at present. |
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