Promising methods for processing cobalt-bearing wastes from zinc production

Karshiev , Khumoyun, Khasanov , Abdirashid

Techscience.uz - техника фанлари долзарб масалалри · 2026-yil

Annotatsiya

This article reviews various techniques for separating and recovering zinc and cobalt from different industrial by-products. The methods discussed include ammonium sulfate leaching, alkaline leaching, solvent extraction using organic solvents, precipitation with α-nitroso-β-naphthol, and oxidative and sulfating roasting. It is shown that ammoniacal treatment achieves up to 96.98% cobalt extraction but does not allow for its separation from zinc. Cyanex 925 extracts zinc approximately 1,211 times more preferentially than cobalt, which indicates a high separation selectivity. During alkaline leaching, 96.33% of zinc is transferred into the solution, while only 4.02% of cobalt is extracted, resulting in the concentration of Co in the residue increasing more than tenfold. The processing of α-nitroso-β-naphthol cake through acid washing, roasting, and aqueous leaching ensures the extraction of over 95% of the cobalt. Processing α-nitroso-β-naphthol cake through acid washing, roasting, and water leaching ensures the extraction of over 95% cobalt. The advantages and limitations of the technologies reviewed were identified, including the consumption of expensive reagents, the generation of additional secondary waste, and the need for complex downstream purification of the resulting solutions.

Maqola ma’lumotlari
MualliflarKarshiev , Khumoyun, Khasanov , Abdirashid
JurnalTechscience.uz - техника фанлари долзарб масалалри
NashriyotЖиззах политехника институти
ISSN3030-3702, 3030-3702
Nashr sanasi2026-09-16
Jild4
Son9
Betlar62-73
TilIngliz
Ilmiy sohaTexnika
DOI10.47390/ts-v4i9y2026n08
Indeksga qo‘shilgan2026-09-17

DOI: 10.47390/ts-v4i9y2026n08 · Maqolaning asl sahifasi

Kalit so‘zlar

cobalt, zinc, technogenic industrial products, ammonium leaching, alkaline leaching, solvent extraction, DEHPA, Cyanex 272, Cyanex 925, α-nitroso-β-naphthol, selective separation, oxidative roasting, sulfate roasting, cobalt cake, secondary raw materials., кобальт, цинк, техногенные промпродукты, аммиачное выщелачивание, щелочное выщелачивание, экстракция растворителем, Д2ЭГФК, Cyanex 272, Cyanex 925, α-нитрозо-β-нафтол, селективное разделение, окислительный обжиг, сульфатизирующий обжиг, кобальтовый кек, вторичное сырьё.

Ilmiy soha

Texnika

Iqtibos keltirish

APAKarshiev , Khumoyun, & Khasanov , Abdirashid (2026). PROMISING METHODS FOR PROCESSING COBALT-BEARING WASTES FROM ZINC PRODUCTION. Techscience.uz - техника фанлари долзарб масалалри, 4(9), 62-73. https://doi.org/10.47390/ts-v4i9y2026n08
GOST (OAK)Karshiev , Khumoyun, Khasanov , Abdirashid PROMISING METHODS FOR PROCESSING COBALT-BEARING WASTES FROM ZINC PRODUCTION // Techscience.uz - техника фанлари долзарб масалалри. – 2026. – T. 4, № 9. – P. 62-73. – DOI: 10.47390/ts-v4i9y2026n08.
MLAKarshiev , Khumoyun, and Khasanov , Abdirashid. “PROMISING METHODS FOR PROCESSING COBALT-BEARING WASTES FROM ZINC PRODUCTION.” Techscience.uz - техника фанлари долзарб масалалри, 4(9), 62-73, 2026. https://doi.org/10.47390/ts-v4i9y2026n08
ChicagoKarshiev , Khumoyun, and Khasanov , Abdirashid. “PROMISING METHODS FOR PROCESSING COBALT-BEARING WASTES FROM ZINC PRODUCTION.” Techscience.uz - техника фанлари долзарб масалалри, 4(9), 62-73 (2026). https://doi.org/10.47390/ts-v4i9y2026n08
HarvardKarshiev , Khumoyun, and Khasanov , Abdirashid (2026) ‘PROMISING METHODS FOR PROCESSING COBALT-BEARING WASTES FROM ZINC PRODUCTION’, Techscience.uz - техника фанлари долзарб масалалри, 4(9), 62-73. https://doi.org/10.47390/ts-v4i9y2026n08
BibTeX
@article{karshievkhumoyun2026,
  title = {PROMISING METHODS FOR PROCESSING COBALT-BEARING WASTES FROM ZINC PRODUCTION},
  author = {Karshiev , Khumoyun and Khasanov , Abdirashid},
  journal = {Techscience.uz - техника фанлари долзарб масалалри},
  year = {2026},
  volume = {4},
  number = {9},
  pages = {62-73},
  doi = {10.47390/ts-v4i9y2026n08},
  url = {https://doi.org/10.47390/ts-v4i9y2026n08}
}

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