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| 水热法浸出废钯炭催化剂中钯的工艺研究 |
| Extracting Palladium From Spent Palladium-Carbon Catalyst by Hydrothermal Method |
| Received:October 27, 2017 |
| DOI： |
| 中文关键词: 有色金属冶金 钯 水热法 废钯炭催化剂 王水浸出 |
| 英文关键词: non-ferrous metallurgy palladium hydrothermal method spent palladium carbon catalyst aqua regia |
| 基金项目: |
| Author Name | Affiliation | | ZHANG Jing | School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China | | HU Jin | School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China | | DUAN Yunbiao | School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China | | LI Jun | School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China | | WANG Yutian | Kunming Posh metal materials Co.Ltd., Kunming 650093, China |
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| 中文摘要: |
| 以王水作为浸出剂，研究了水热法浸出废钯炭催化剂中钯的工艺。采用正交实验方法研究了反应时间、反应温度、王水用量等条件对钯浸出率的影响。通过单因素实验，确定出在实验范围内最佳的工艺参数为:温度90℃、反应时间3 h、液固比40 mL/g，在此条件下，钯的浸出率在99%以上。由于采用密闭的回收体系，在较好解决环境污染的同时还可回收试剂，降低成本。 |
| 英文摘要: |
| The hydrothermal extraction of palladium from waste palladium-carbon catalyst was carried out in aqua regia as the leaching agent. The effect of reaction time, reaction temperature and amount of aqua regia on the palladium leaching rate was investigated by orthogonal experiment. From single factor experiments, the process parameters were optimized within the experimental range. The palladium leaching rate was 99% , when the hydrothermal extraction was conducted in a sealed reactor, at 90℃ for 3 hours with a liquid-solid ratio of 40 mL/g. By using the sealed environment the reagents were recycled while pollutants could be reduced. |
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