Molybdenum recovery as alloying agent from waste molybdenum solution

Authors

  • Zoran Janjušević Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade, Serbia Author
  • Vladislav Matković Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade, Serbia Author
  • Mladen Bugarčić Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade, Serbia Author
  • Miroslav Sokić Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade, Serbia Author
  • Branislav Marković Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade, Serbia Author
  • Vaso Manojlović Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade, Serbia Author
  • Aleksandra Patarić Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade, Serbia Author

DOI:

https://doi.org/10.5937/ZasMat1801102J

Keywords:

spent acid, ammonia neutralization, molybdenum-trioxide, alloying, cast iron

Abstract

The present work reports the commercialization of a recycling process of spent acid from filament tungsten wire plant to recover molybdenum (VI)-oxide and further utilizing this product for alloying cast iron. First part of the process consists of ammonia gas neutralization of spent acid containing molybdenum, crystallization and filtration of ammonium molybdate, drying and roasting to produce a commercial grade molybdic-trioxide powder (molybdenum mass fraction 59.2 mas%). Second part of the process consists of grey cast alloying with MoO3 in inducing furnace. Final product was hardened iron alloy with high yield of molybdenum recovery (up to 86 %).

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Published

15-03-2018

Issue

Vol. 59 No. 1 (2018)

Section

Articles