| 标题 |
 Recovery of Ni metal from hydrotreating spent catalyst with organic acid leaching and the kinetics study 有机酸浸出法从废催化剂加氢中回收金属镍及其动力学研究
相关领域
浸出（土壤学）
催化作用
加氢脱硫
镍
柠檬酸
活化能
化学
金属
危险废物
粒径
化学工程
材料科学
废物管理
冶金
无机化学
核化学
有机化学
环境科学
土壤水分
土壤科学
物理化学
工程类
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| 其它 | Environmental issue about Hazardous and Toxic waste in industrial is the most important thing to consider nowadays. The rapid development of industries makes catalyst to be the best answer to make the reaction of a process becomes more fast. Hydrotreating process is one of the example that use catalyst as its requirement. The process produces spent catalyst as its waste containing nickel within 72438.59 mg/kg which led us to the needs of recovery. Leaching is known as an effective way to recover metal from a spent catalyst. In this study, nickel is recovered from the spent catalyst by varying some operating parameters in the leaching process such as the concentration of citric acid and EDTA from 0.1-0.3 M, the temperature from 55-85°C, and the time from 30-480 minutes. The results obtained show that leaching of about 59.45% was achieved under the following conditions: average particle size 150 mesh, |
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