ferrochrome production
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2020 ◽  
Vol 6 (444) ◽  
pp. 111-118
Author(s):  
Т.S. Bazhirov ◽  
◽  
V.S. Protsenko ◽  
N.S. Bazhirov ◽  
M.S. Dauletiyarov ◽  
...  

The research results of physicochemical and physicotechnical properties of slag wastes from ferrochrome production as raw materials for heat-resistant materials are presented. Chemical and mineralogical composition of slag from high-carbon ferrochrome production and slag from low-carbon ferrochrome production, as well as their constituent main crystalline phases, represented by magnesium and calcium aluminosilicates of complex composition, have been determined by physicochemical research methods. According to X-ray phase analysis, the slag from the high-carbon ferrochrome production is represented mainly by forsterite Mg2SiO4, spinel MgAl2O4, partially amorphous glass phase and admixture of calcium orthosilicate Ca2SiO4. In the slag from the low-carbon ferrochrome production, the main crystalline phase is calcium orthosilicate γ-Ca2SiO4, as well as magnesium orthosilicate forsterite Mg2SiО4. The research results of specific surface area, average particle size determination and sieve analysis have shown that the slag from the low-carbon ferrochrome production is a finely dispersed gray powder with the following characteristics: the specific surface area – 295 m2 /kg, the average particle size – 6.8 μm, the true density – 3.01 g/cm3 , the bulk density – 739 kg/m3 . The research of the physicochemical and physicotechnical properties has established that in terms of chemical, mineralogical composition and refractoriness indices, the slags from the high-carbon ferrochrome and low-carbon ferrochrome productions can be valuable raw materials for heat-resistant materials.


Metallurgist ◽  
2019 ◽  
Vol 62 (9-10) ◽  
pp. 875-881 ◽  
Author(s):  
O. V. Zayakin ◽  
R. N. Statnykh ◽  
V. I. Zhuchkov

Metallurgist ◽  
2018 ◽  
Vol 62 (5-6) ◽  
pp. 493-500
Author(s):  
O. V. Zayakin ◽  
V. I. Zhuchkov ◽  
L. I. Leont’ev

Metallurgist ◽  
2017 ◽  
Vol 61 (1-2) ◽  
pp. 132-138
Author(s):  
W. Mosoma ◽  
M. Kalenga wa Kalenga ◽  
X. Pan

2014 ◽  
Vol 46 (2) ◽  
pp. 1073-1081 ◽  
Author(s):  
G. Ramakrishna ◽  
Ameya Kadrolkar ◽  
N. Gurulaxmi Srikakulapu

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