Study on Roasting and Leaching of Typical Waste Platinum Catalyst
The roasting system and leaching system of waste platinum catalyst were studied.HCl/NaClO3 leaching system improved the leaching rate of platinum.The conditions were determined as follows;the roasting temperature 1 200℃,the ratio of solid to leaching liquid 6∶1,the concentration of hydrogen ion 6 mol·L-1,the leaching time 3 h,the leaching temperature 70℃,the concentration of oxidant sodium chlorate 0.06 mol·L-1.The waste platinum catalyst was leached by HCl/NaClO3 system at 1 200℃,the average recovery of platinum reached 97.06%.
Waste platinum-containing catalystPretreatmentRoasting and leachingResearch
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维普
