Study on Preparation of Zinc Oxide Dust from Neutralizing Slag by Microwave Roasting
Received:March 01, 2019   Revised:March 05, 2019   Accepted:March 07, 2019      Published Online:June 17, 2019
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DOI:doi:10.3969/j.issn.1007-7545.2019.07.006
KeyWord:microwave; reducing roasting; neutralizing slag; zinc oxide dust
        
AuthorInstitution
Zhang Jun 云南博世科环保科技有限责任公司
Xie Rongsheng 昆明冶金研究院
Feng Hui 广西博环环境咨询服务有限公司
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Abstract:
      Heating characteristics of neutralizing slag in microwave field were investigated. The results show that neutralization slag has excellent microwave absorbing properties. Volatilization rate of lead and zinc rises significantly with increase of material temperature. Volatilization rate of zinc and lead is 90.27% and 98.63% respectively, and zinc and lead contents in calcined zinc oxide dust is 49.06% and 8.54% respectively, under microwave power of 1 kW and roasting temperature of 1 000 ℃. It is feasible to prepare zinc oxide dust with neutralizing slag by microwave roasting.
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