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| Removal Magnesium from Pt-Pd ore Leached by Sulfuric Acid and the Leaching Solution''''s Comprehensive Utilization |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Platinum-palladium ore,Serpentine,Acid leaching,Light magnesium oxide,Iron oxide, |
| XIE Hai-yun,HU Xian-zhi,ZHANG Wen-bin,SUN Li-jun |
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| Abstract: |
| The method of acid leaching has been used to remove magnesium from platinum-palladium ore. The results indicate that the leaching rate of Mg and Fe is 80.46% and 80.00% respectively under suitable conditions. A plan of two-step leaching is adopted for the purpose of further increasing the leaching rate of Mg which is above 95%. Mg and Fe can be separated efficiently by hydrolysis method of Fe~(3+), and after separation Mg and Fe, the content of Fe in MgSO_4 solution is lower 0.1%, the recovery of Mg is above 91%.The total recovery of Mg is about 80%.The main content of light magnesium oxide is above 95% and iron oxide red is above 70%. |
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