Recovery of Platinum Group Metals from Spent Auto-Catalysts by Smelting
Received:March 21, 2017  Revised:March 23, 2017
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DOI:doi:10.3969/j.issn.1007-7545.2017.08.010
KeyWord:smelting; spent auto-catalyst; recovery; platinum group metals (PGM)
                       
AuthorInstitution
LI Yong 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
XIONG Qing-fen 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
HE Xiao-tang 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
Yao Yu 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
XIAO Xiong 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
WANG Huan 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
ZHAO Yu 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
NING Xian-xiong. 贵研资源易门有限公司,稀贵金属综合利用新技术国家重点实验室
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Abstract:
      Smelting technology to enrich and recover platinum group metals (PGM) from spent auto-catalysts was studied. Effects of dosages of collector, reductant and slag former on recovery of PGM were investigated. The experimental results show that recovery of PGM is 97% under the optimum conditions including reacting time of 4 h, dosage of Fe3O4 of 20% mass fraction of material, reductant dosage of 9%, CaO dosage of 40%, and smelting temperature of 1 450 ℃. PGM-Fe alloy with content of elemental iron of 91%~93% and content of PGM of 4%~5% is obtained.
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