20.500.12556/RUL-99752
Analiza delovanja elektroliznih celic s STARprobeTM meritvami
Analysis of electrolysis cells operation with the use of STARprobeTM
Pri elektrolizni proizvodnji aluminija lastnosti elektrolita pomembno vplivajo na rezultate proizvodnega procesa. Pomembna sta predvsem kemijska sestava in temperatura elektrolita, o katerih lahko podatke pridobimo z različnimi vrstami meritev.
V diplomskem delu so opisane ključne razlike med »insitu« meritvami lastnosti elektrolita s STARProbe™ in XRD analizo. Meritve lastnosti elektrolita s STARProbe™ je nov postopek, ki so ga uvedli v Talumu. Z njim merimo štiri lastnosti elektrolita: temperaturo elektrolita, ∆T (superheat), prebitek aluminijevega fluorida (AlF3) in koncentracijo glinice (Al2O3). Meritve temeljijo na DTA analizi, ki omogoča rezultate že v 4 minutah. Pri XRD analizi so rezultati znani šele po 6-8 urah.
V diplomskem delu so določene razlike v rezultatih koncentracije (prebitka) aluminijevega fluorida pri XRD analizi in meritvami s STARProbe™, vpliv aluminijevega fluorida na ∆T, vpliv ∆T na koncentracijo glinice, povečanje učinkovitosti delovanja elektroliznih celic z uporabo STARProbe™ in ekonomsko upravičenost uvedbe STARProbe™.
In the electrolytic production of aluminum, the properties of the electrolyte have a significant effect on the results of the production process. The chemical composition and temperature of the electrolyte, which can be obtained by the different types of measurements, are important.
In diploma thesis are accurately described key differences between “insitu” measurements of the properties of the electrolyte with STARProbe™., and XRD analysis of the electrolyte. Measurements of the properties of the electrolyte with STARProbe™ is a new procedure, which was introduced in Talum. The four bath properties are measured by it: bath temperature, ∆T (superheat), excess aluminium fluoride (AlF3) and alumina concentration (Al2O3). The measurements are based on DTA analysis, which allows to obtain results in just 4 minutes. In the traditional method with the XRD results were not available until after 6-8 hours.
The purpose of this diploma thesis is to determine differences in the results of the concentration (excess) of aluminum fluoride with XRD analysis and measurements with STARProbe ™, the effect of aluminum fluoride on ΔT, the effect of ΔT on alumina concentration, the increase in the operating efficiency of electrolytic cells using STARProbe ™, and the economic viability of introducing STARProbe ™.
pridobivanje aluminija
meritve elektrolita
XRD
STARProbe™
aluminium smelting
electrolyte measurements
XRD
STARProbe™
true
false
false
Slovenski jezik
Angleški jezik
Diplomsko delo/naloga
2018-02-12 10:02:56
2018-02-12 10:02:59
2022-08-24 17:02:39
0000-00-00 00:00:00
2018
0
0
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
59982
1715551
628.pdf
628.pdf
1
76122494042AB1F984861222D691B28E
a497a43200ce84396f9259e8dd95783308066f2c0ff9467593be2431b5b79c3a
9d87dfda-a1b4-11eb-a523-00155dcfd717
20.500.12556/rul/a055ae94-fcb1-43c5-85b6-db8767e58259
https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=109302
Naravoslovnotehniška fakulteta
0
0
0