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Kinetics of roasting of copper and iron sulfides with soda in a vibratory boiling layer

B. S. Baimbetov orcid id orcid.org/0000-0003-4442-5038 ; Satbayev University, Almaty, Kazakhstan
A. A. Bekisheva ; Satbayev University, Almaty, Kazakhstan
K. D. Aytenov orcid id orcid.org/0000-0002-6934-5985 ; Satbayev University, Almaty, Kazakhstan
B. E. Abdikerim orcid id orcid.org/0000-0001-5551-2618 ; Satbayev University, Almaty, Kazakhstan


Puni tekst: engleski pdf 810 Kb

str. 207-210

preuzimanja: 637

citiraj


Sažetak

The kinetics of the roasting of iron and copper sulfides in a pulsating layer was studied, and the kinetic parameters of the processes were determined. The determination of the order of the roasting reactions and activation energy in the MeS – Na2CO3 - O2 system is based on the differential method. Using the dependences of the degree of conversion of copper and iron sulfides in the reactor of the vibratory pulsating layer at a pulsation frequency of 50 Hz and a pulsation amplitude of 0,1 - 0,5 mm, the values of the apparent activation energy in the temperature ranges of 500 – 550 - 600 °C were obtained for FeS 1,60 - 1,64 and for Cu2S 1,44 - 2,41 J*mol. (CO2).

Ključne riječi

metal sulfide; copper sulfide; iron sulfide; sulfatization; leaching

Hrčak ID:

232474

URI

https://hrcak.srce.hr/232474

Datum izdavanja:

1.4.2020.

Posjeta: 1.130 *