Vlad CODREA

19-78 DISTRIBUŢIA MINERALELOR ÎN CENUŞA DE HUILĂ DE LA TERMOCENTRALA PAROŞENI

Această intrare a fost publicată în 2011 Volumul 19 și etichetată Alexandra Gertrud HOSU – PRACK Andreea BRAŞOVAN George ARGHIR Ioan PETEAN Ramona Flavia CÂMPEAN Vlad CODREA la de

MINERALS DISTRIBUTION IN COAL FLY ASH FROM
PAROSENI POWER PLANT
Large ash dumps, formed in time, are a high harmful potential for
environment. Our study points out the mineral contained in fly ash resulted at
Paroşeni power plant. The X-ray diffraction analysis reveals large amounts of
quartz, mullet, potasic feldspar, Seri cite and hydrated hematite. Microscopy
investigation prove that quartz particles keeps their initial equiaxial shape
meanwhile higher amount of mullet and hematite feature spherical shape due
to their melting during coal burning. The quantitative microscopic analysis
reveals three particles domains: the larger one having the average diameter of
100 μm, the intermediary one having the average diameter of 44 μm, and the
finest one having the average diameter of 23 μm. Quartz particles are often
found in the larger particle range, hematite hydrate and mullet are often found
in the intermediary particle range, meanwhile feldspar and Seri cite are situated
mainly in the finest particle range.
Keywords: ash, coal, power plant
Cuvinte cheie: cenuşă, huilă, termocentrală

78 DISTRIBUŢIA MINERALELOR ÎN CENUŞA DE HUILĂ

21-73 DATE PRIVIND MINERALOGIA STERILULUI REZULTAT ÎN URMA SPĂLĂRII HUILEI LA PREPARAŢIILE DIN VESTUL BAZINULUI PETROŞANI

Această intrare a fost publicată în 2012 Volumul 21 și etichetată Andreea BRAŞOVAN George ARGHIR Ioan PETEAN Vlad CODREA la de

DATA CONCERNING THE MINERALOGY OF STERILE
RESULTED FROM PIT COAL WASHING AT WESTERN
PETROSANI BAZIN PREPARATIONS
The mineral composition of the sterile dumps formed during coal
exploitation and sorting was established during this research. There are found
quartz, potassium feldspar, biotite and calcite. The X-ray diffraction analysis
point out these minerals as well as pronounced crystalline state of the dumped
sterile. The optical mineralogical microscopy reveals the sterile particles
morphology, equiaxial for quartz and calcite and tabular – philliphorm for the
biotite and potassium feldspar. All issued minerals belong to the non coal
intercalations on the geological coal layers.
Cuvinte cheie: steril, huilă, preparaţie
Keywords: sterile, coal, preparation

73 DATE PRIVIND MINERALOGIA STERILULUI REZULTAT