Process study on removal of Ni from FCC Waste CatalystWang Wei-zhen, Huang Hai-hui, Chang Yao-chao, Ruan Shu-feng, Gao chong
Received:June 09, 2020   Revised:July 16, 2020   Accepted:July 17, 2020      Published Online:May 13, 2021
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KeyWord:FCC, Waste;catalyst, Reduction;smelting, Removal;of Ni
              
AuthorInstitution
Wang Wei-zhen Beijing General Research Institute of Mining Metallurgy
Huang Hai-hui Beijing General Research Institute of Mining Metallurgy
Chang Yao-chao Beijing General Research Institute of Mining Metallurgy
Ruan Shu-feng Beijing General Research Institute of Mining Metallurgy
Gao Chong Beijing General Research Institute of Mining Metallurgy
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Abstract:
      The process of acid leaching, roasting-acid leaching, ammonia leaching, reduction roasting- ammonia leaching, chloridizing roasting were used for removal of Ni from FCC Waste Catalyst. The removal rate of Ni are 16.64%、10%、0.8%、23.92% and 64.53%, respectively. And the treated residue which the nickel content is more than 0.1% cannot meet the standards for general industrial solid wastes. Then the FCC Waste Catalyst was treated by the process of reduction smelting. When the waste catalyst was reduction smelted at 1450 ℃ for 2 hour with addition of 11% of Fe2O3 and 5% of anthracite, the removal rate of Ni was 92.6%. The smelting slag which the nickel content is 0.06% can meet the standards for general industrial solid wastes.
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