EXTRACTION OF THE NICKEL MICROELEMENT FROM INDUSTRIAL SECONDARY PRODUCTS USING SULFURIC ACID

EXTRACTION OF THE NICKEL MICROELEMENT FROM INDUSTRIAL SECONDARY PRODUCTS USING SULFURIC ACID

Authors

  • Khurshida Hakimova Namangan State Technical University
  • Makhkamova Dilnoza Namangan State Technical University
  • Turayev Zokirjon Namangan State Technical University

DOI:

https://doi.org/10.61151/stjniet.v11i1.996

Keywords:

microelements, sulfuric acid concentration, temperature, number of cycles, solid:liquid ratio, X-ray fluorescence spectrometer

Abstract

In this study, waste of hydrogenation catalysts of the “Pricat 9920” grade, used in the conversion of liquid vegetable oils into semi-solid products at IDEAL OIL JSC located in the Namangan region of the Republic of Uzbekistan, was utilized. To analyze the chemical composition of this hydrogenation catalyst waste, an average sample was collected and analyzed using a high-performance energy-dispersive X-ray fluorescence spectrometer equipped with a polarization system - Rigaku NEX CG EDXRF (Japan).

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Published

2026-03-30

How to Cite

Hakimova, K., Makhkamova, D., & Turayev, Z. (2026). EXTRACTION OF THE NICKEL MICROELEMENT FROM INDUSTRIAL SECONDARY PRODUCTS USING SULFURIC ACID. Scientific and Technical Journal of Namangan Institute of Engineering and Technology, 11(1), 166–175. https://doi.org/10.61151/stjniet.v11i1.996

Issue

Vol. 11 No. 1 (2026): Scientific and Technical Journal Namangan Institute of Engineering and Technology

Section

Articles