Study on Treatment of Scrap Hafnium-bearing Alloy
Received:March 10, 2016   Revised:March 14, 2016   Accepted:March 16, 2016      Published Online:July 21, 2016
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DOI:doi:10.3969/j.issn.1007-7545.2016.08.009
KeyWord:hafnium; recovery; electric melting
              
AuthorInstitution
GUO Rui 西北有色金属研究院
WANGJing-kun 西北有色金属研究院
WANG Zhi-jun 西北有色金属研究院
MA Guang 西北有色金属研究院
LI Jin 西北有色金属研究院
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Abstract:
      Scrap hafnium-bearing alloy was treated by electric melting and precipitation with phosphate. Current efficiency is 90% above under the conditions including current density of 200~300 A/m2, acidity of electrolyte of 1 mol/L H2SO4, and Ni concentration of 80 g/L. Recovery of hafnium is 90% above when electric solution is heated to 80 ℃ with addition of 1 g/L phosphate. Comprehensive recovery of hafnium is 95% above.
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