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| EXPERIMENT AND STUDY IN THE CRUST AND OXIDATION PREVENTION OF PYRRHOTITE AND SULPHUR CONCENTRATE |
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Revised:February 26, 2003
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| DOI： |
| KeyWord:Pyrrhotite,Sulphur concentrate,Biochemical oxidation,Mine environment |
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| Abstract: |
| In the summer,pyrrhotite in the sulphur concentrate is oxidized before others so hard crust appears quickly on the surface of the ores stack.The oxidation also results in lack of oxygen,constant temperature and acidic medium therefore the processes of the ore biochemical oxidation are accelerated inside the stack.It made the sulphur concentrate to lose commodity value and to bring new pollutants from a lot of acid drainage.Some chemical experiments are carried out by using this sulphur concentrate which is made to disinfect,coat and add liberation inhibitor in acid environment and by reagent's combination and sifting.Among these experiments the sample 7~# achieves good results.The crust and the oxidation of sulphur concentrate containing over 25% of pyrrhotite have been brought under control. |
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