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- W2391506087 abstract "The experiment was carried out for leaching silver by using ammonium thiocyante as leaching agent,and the effect of leaching agent concentration,reaction time,temperature,the dosage of oxidant and liquid-to-solid ratio on leaching efficiency was discussed.The optimal technique route and parameter was proposed.The orthogonal test,single factor optimized test and magnification test showed that when ammonium thiocyante was 95 kg/t,the dosage of manganese dioxide was 6.8 kg/t,leaching temperature was 25 ℃,liquid-to-solid ratio was 2.5∶ 1 and pH was 2,the total rate of silver leaching by twice was up to 95%.The dynamics mechanism of silver leaching was also investigated,and it was found that the leaching reaction order of ammonium thiocyante was 0.5,activation energy was 12.574 kJ·mol-1,the reaction rate constant was k=1.883 e-12574/RT." @default.
- W2391506087 created "2016-06-24" @default.
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- W2391506087 date "2012-01-01" @default.
- W2391506087 modified "2023-09-26" @default.
- W2391506087 title "On dynamics of leaching silver by ammonium thiocyante in treated sludge from nonferrous metal smelting waste water" @default.
- W2391506087 hasPublicationYear "2012" @default.
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