TY  - JOUR
AU  - Dimitrijević, Silvana B.
AU  - Veličković, Suzana
AU  - Ivanović, Aleksandra T.
AU  - Veljković, Filip M.
AU  - Jovanović, Milan M.
AU  - Kamberović, Željko
AU  - Dimitrijević, Stevan P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10138
AB  - A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 °C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 °C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.
T2  - International Journal of Refractory Metals and Hard Materials
T2  - International Journal of Refractory Metals and Hard MaterialsInternational Journal of Refractory Metals and Hard Materials
T1  - Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching
VL  - 101
SP  - 105695
DO  - 10.1016/j.ijrmhm.2021.105695
ER  - 

@article{
author = "Dimitrijević, Silvana B. and Veličković, Suzana and Ivanović, Aleksandra T. and Veljković, Filip M. and Jovanović, Milan M. and Kamberović, Željko and Dimitrijević, Stevan P.",
year = "2021",
abstract = "A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 °C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 °C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.",
journal = "International Journal of Refractory Metals and Hard Materials, International Journal of Refractory Metals and Hard MaterialsInternational Journal of Refractory Metals and Hard Materials",
title = "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching",
volume = "101",
pages = "105695",
doi = "10.1016/j.ijrmhm.2021.105695"
}

Dimitrijević, S. B., Veličković, S., Ivanović, A. T., Veljković, F. M., Jovanović, M. M., Kamberović, Ž.,& Dimitrijević, S. P.. (2021). Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals and Hard Materials, 101, 105695.
https://doi.org/10.1016/j.ijrmhm.2021.105695

Dimitrijević SB, Veličković S, Ivanović AT, Veljković FM, Jovanović MM, Kamberović Ž, Dimitrijević SP. Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals and Hard Materials. 2021;101:105695.
doi:10.1016/j.ijrmhm.2021.105695 .

Dimitrijević, Silvana B., Veličković, Suzana, Ivanović, Aleksandra T., Veljković, Filip M., Jovanović, Milan M., Kamberović, Željko, Dimitrijević, Stevan P., "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching" in International Journal of Refractory Metals and Hard Materials, 101 (2021):105695,
https://doi.org/10.1016/j.ijrmhm.2021.105695 . .