| 标题 |
 Recovery of tungsten from spent selective catalytic reduction catalysts by pressure leaching 加压浸出法从废选择性催化还原催化剂中回收钨
相关领域
浸出（土壤学）
催化作用
钨
化学
钒
降水
核化学
无机化学
煅烧
钨酸钠
铵
高压灭菌器
钨酸盐
有机化学
土壤水分
土壤科学
气象学
物理
环境科学
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| 网址 | |
| DOI |
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| 其它 |
Abstract The recovery and purification of vanadium (V) and tungsten (W) from honeycomb-type spent selective catalytic reduction (SCR) catalyst was investigated using an autoclave through a pressure leaching process. Spent SCR catalyst mainly consists of TiO2 and other oxides (7.73% WO3, 1.23% V2O5, etc.). The reaction temperature, NaOH concentration, time, additive concentration, and liquid–solid (L/S) ratio were varied during the leaching process. The optimal reaction conditions were identified for recovery of V and W. The addition of NaOH to Na2CO3 improved the amount of V and W recovered because of the enhancing effect of NaOH in Na2CO3. |
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彭于彦祖
杳鸢
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嗯哼
一一
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模糊中正
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