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| Experimental study on flocculation and sedimentation of high mud oxidized copper mine in Congo and application of technical modification |
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Received:May 14, 2020
Revised:May 20, 2020
Accepted:May 27, 2020
Published Online:January 29, 2021
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| DOI： |
| KeyWord:High mud copper oxide;Polyacrylamide;Stirring and leaching;Flocculant selection;High efficiency thickener modification |
| Author | Institution |
| xietian |
Kunming university of science and technology |
| liufangbin |
China Railway Resources Group |
| tongxiong |
Kunming University of Science and Technology |
| qiuguanzhou |
Central South University |
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| Abstract: |
| This article is focused on the high mud copper oxide ore in Democratic Republic of the Congo.Using leaching slurry as the test object to select of the organic polymer PAM, explores the parameters of leaching slurry concentration, the type and amount of flocculant under the best settlement effection.Then did some technical modification of the thickner,and achieved good results.The results showed that the selection of AN905 flocculant with a molecular weight of 18 to 23 million could meet the production and concentration requirements of high mud oxidized copper mine.According to the sedimentation test, the concentration of the leaching pulp is 20%, and the sedimentation effect of flocculant is the best. The consumption of flocculant is 100g/ ton.The modification of thickener center barrel height ,changing the way of adding the floculant,and adjusting the flocculant addition point can not only effectively solve the problem of flocculation and settlement of high-mud copper oxide leaching slurry during the concentration process,but also reduce overflow losses of valuable metals and the floculant consumption, and increase the production ore processing capacity and achieve good economic benefits for the company. |
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