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| Technical Study on Preparation of Microfine Nickel Powder by Spray Pyrolysis Nickel Protoxide |
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Received:December 04, 2018
Revised:December 06, 2018
Accepted:December 10, 2018
Published Online:February 15, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.03.015 |
| KeyWord:spray pyrolysis; nickel protoxide; pusher furnace; hydrogen reduction |
| Author | Institution |
| zhangxintao |
镍钴资源综合利用国家重点实验室 |
| zhangkecui |
兰州金川新材料科技股份有限公司;、兰州金川新材料科技股份有限公司 |
| zhangjuan |
镍钴资源综合利用国家重点实验室 |
| zhangpeng |
镍钴资源综合利用国家重点实验室 |
| liuchangsha |
镍钴资源综合利用国家重点实验室 |
| lijuan |
镍钴资源综合利用国家重点实验室 |
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| Abstract: |
| Reduction parameters must be strictly controlled to meet the special requirements of microfine nickel powder in new materials, i.e. particle size, apparent density, and oxygen content. Effects of spray pyrolysis nickel protoxide powder in pusher furnace on hydrogen reduction under different conditions were studied by hydrogen reduction technology. The results show that microfine nickel powders with low apparent density, fine particle size, and oxygen content of 0.25% are obtained under the optimum conditions including reduction temperature of 745~800 ℃, pushing time of 1 200 s, and hydrogen flow rate of 7.5 m3/h. |
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