Naslov
Influence of heterogeneity of limonite and sinter mixture samples on iron, calcium and silicon determination by X-ray emission spectrometry

Autori
Novosel-Radović, Vjera ; Sofilić, Tahir ; Maljković, Darko

Izvornik
Metalurgija (0543-5846) 34 (1995), 1-2; 13-17

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
heterogeneity ; limonite ore ; sinter mixture ; calcium ; silicon ; X-Ray emission spectrometry

Sažetak
For better understanding and interpretation of the observed deviation in results of measurement of relative intensity of analytical lines FeK , CaK and SiK in samples of limonite iron ore and sinter mixture specially prepared samples were studied. Limonite iron ores and sinter mixure were ground, separated by sieving into five fractions (size between 200  m and < 50  m), homogenized and formed into briquettes without or with binder. In the same way were prepared samples of mixture of different fractions, mixed in ratios 3 : 1, 1: 1 and 1: 3. All measurements were made on a sequential semiautomatic X-ray spectrometer, diffractometris system and scanning electron probe microanalyser. The results obtained showed that changes in relative intensity were due not only to component participation in each fraction but also to the phase component participation in each fraction but also to the phase composition of grain, its behaviour during the briquetting process, segregation rate and the tendency towards agglomeration and formation of stuck particles.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Metalurgija

POVEZANOST RADA