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

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

Авторы

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

DOI:

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

Ключевые слова:

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

Аннотация

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).

Загрузки

Опубликован

2026-03-30

Как цитировать

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

Выпуск

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

Раздел

Articles