DEVELOPMENT OF A PROCEDURE FOR JOINT DETERMINATION AND SEPARATION OF COBALT AND MOLYBDENUM COMPOUNDS FROM SOLUTIONS

  • A. Hacrinov Federal State Budgetary Educational Institution of Higher Education "Kazan National Research Technological University" (FSBEI HE "KNITU")
  • Yu. Hacrinova LC "NanoAnalytica"
  • R. Ahmetova Federal State Budgetary Educational Institution of Higher Education "Kazan National Research Technological University" (FSBEI HE "KNITU")
Keywords: catalysts, molybdenum, cobalt, colorimetric technique

Abstract

The article is devoted to the scientific problem of joint determination and separation of cobalt and molybdenum compounds in spent catalysts. For the joint extraction of cobalt and molybdenum from the solution in the form of their thiocyanate complexes, a common extractant, acetone, was introduced. A method for the colorimetric determination of these compounds in solutions is proposed. The concentration limits were determined at which the procedure for the joint determination of cobalt and molybdenum is performed. For cobalt - [0.1-2.0] g / l; for molybdenum - above 0.1 g / l. A method is proposed for the isolation of cobalt and molybdenum compounds with a change in the pH of the solution.

Author Biographies

A. Hacrinov , Federal State Budgetary Educational Institution of Higher Education "Kazan National Research Technological University" (FSBEI HE "KNITU")

Professor, Doctor of Technical Sciences, Head of the Department of Technology of Inorganic Substances and Materials

Yu. Hacrinova , LC "NanoAnalytica"

Quality manager

R. Ahmetova , Federal State Budgetary Educational Institution of Higher Education "Kazan National Research Technological University" (FSBEI HE "KNITU")

Doctor of Technical Sciences, Professor of the Department of Technology of Inorganic Substances and Materials

References

1 Hacrinova Yu.A., Hacrinov A.I. Sposob razdeleniya kobalta i molibdena v otrabotannyh katalizatorah: Vestnik Kazanskogo tehnologicheskogo universiteta: T.15. №8. M-vo obraz. I nauki Rossii, Kazan. nac. issled. tehnol. un-t. Kazan: KNITU. 2012. S.46-50.
2 Hacrinova Yu.A., Hacrinov A.I. Metod sovmestnogo opredeleniya kobalta i molibdena Materialy Vserossijskoj konferencii. Kemerovo, 21-23 noyabrya 2012g. / FGBOU VPO «Kuzbasskij gosudarstvennyj tehnicheskij universitet imeni T.F. Gorbacheva»
3 B.N. Nabivanec. Izuchenie rodanistyh kompleksov pyativalentnogo molibdena // Zhurnal neorganicheskoj himii. – M.: 1959. – Vyp.8. – S. 1797-1803.
4 Babko A.K. Fiziko-himicheskij analiz kompleksnyh soedinenij v rastvorah. – Kiev.: Izda-vo AN Ukr.SSR, 1955. – 328 s.
Published
2021-06-14
How to Cite
Hacrinov , A., Yu. Hacrinova, and R. Ahmetova. 2021. “DEVELOPMENT OF A PROCEDURE FOR JOINT DETERMINATION AND SEPARATION OF COBALT AND MOLYBDENUM COMPOUNDS FROM SOLUTIONS”. EurasianUnionScientists, June, 25-28. https://doi.org/10.31618/ESU.2413-9335.2021.1.86.1352.