Morphology, Phase Composition and Radiological Properties of Fly Ash Obtained from the Burshtyn Thermal Power Plant

被引：3

作者：

Mironyuk, I. F. ^{[1
]}

Tatarchuk, T. R. ^{[2
]}

Vasylyeva, H. V. ^{[3
]}

Yaremiy, I. P. ^{[4
]}

Mykytyn, I. M. ^{[1
]}

机构：

[1] Vasyl Stefanyk Precarpathian Natl Univ, Fac Nat Sci, Dept Chem, UA-76018 Ivano Frankivsk, Ukraine

[2] Vasyl Stefanyk Precarpathian Natl Univ, Educ & Sci Ctr Mat Sci & Nanotechnol, UA-76018 Ivano Frankivsk, Ukraine

[3] Uzhgorod Natl Univ, Dept Phys Nucleus & Elementary Particles, Dept Theoret Phys, UA-88000 Uzhgorod, Ukraine

[4] Vasyl Stefanyk Precarpathian Natl Univ, Dept Mat Sci & New Technol, UA-76018 Ivano Frankivsk, Ukraine

来源：

PHYSICS AND CHEMISTRY OF SOLID STATE | 2018年 / 19卷 / 02期

关键词：

fly ash; glass microspheres; mullite; quartz; radiology;

D O I：

10.15330/pcss.19.2.171-178

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The physic-chemical properties of ash extracted from smoke during the combustion of coal at the Burshtyn thermal power plant were investigated. The particles formed in the flame are crystallized glass beads with a size of 0.8-600 mu m. It was found that the ash particles are heterogeneous in their chemical composition. The mass content of the ferric oxides can vary from 2.1 % to 96.4 %, however, despite this, the Al2O3/SiO2 ratio in the glass balls remains constant at a value of 0.47 +/- 0.02. Phase analysis confirmed the presence of alpha-quartz particles (similar to 62 wt%), mullite (\similar to 32 wt%) and alpha-FeOOH, alpha-Fe2O3 and Fe3O4 mixtures (totaling 6 wt%). Radiological studies have revealed higher beta- and gamma-activity of fly ash, selected from the dump, compared with the fly ash from the electro-filter. This is due to the accumulation of Pb-214 and Bi-214 radionuclides particles formed on the surface of the particles due to due to decay of Rn-222.

引用

页码：171 / 178

页数：8

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