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Title:RAZVOJ TEHNOLOŠKEGA POSTOPKA ČIŠČENJA ULTRAFINEGA TITANOVEGA DIOKSIDA
Authors:ID Pfeifer, Anja (Author)
ID Škerget, Mojca (Mentor) More about this mentor... New window
ID Knez, Željko (Comentor)
Files:.pdf UNI_Pfeifer_Anja_2010.pdf (1,41 MB)
MD5: 9E832A467662992EB8215AE945591DA5
PID: 20.500.12556/dkum/c6485dec-a259-4152-a5a5-1d3a639c6b69
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Pri tem diplomskem delu smo poskušali razviti postopek za čiščenje ultrafinega titanovega dioksida. Ugotovili smo, da je čiščenje zelo efektivno s pomočjo centrifugiranja. Imeli smo tri suspenzije ultrafinih delcev titanovega dioksida. Dve suspenziji sta vsebovali rutil, ki je bil dispergiran v različnih koncentracijah kisline, tretja suspenzija pa je vsebovala anatas. Pred čiščenjem smo dodali koagulant, da smo dobili boljše rezultate in hitrejšo ločitev. Čiščenje je potekalo v treh stopnjah. Najprej smo eksperimente izvedli v laboratorijskem merilu, da smo določili optimalne procesne parametre. Dobljene rezultate smo preizkusili na pilotni centrifugi. Na podlagi tega smo pripravili tehnološke sheme v industrijskem merilu in izračunali kapacitete tehnološkega postopka.
Keywords:titanov dioksid, nanodelci, centrifugiranje, koagulacija
Place of publishing:Maribor
Publisher:[A. Pfeifer]
Year of publishing:2010
PID:20.500.12556/DKUM-17030 New window
UDC:66.067.5(043.2)
COBISS.SI-ID:15002134 New window
NUK URN:URN:SI:UM:DK:TDFUR9IS
Publication date in DKUM:23.12.2010
Views:2994
Downloads:393
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:DEVELOPMENT OF PROCESSING TECHNOLOGY FOR CLEANING ULTRAFINE TITANIUM DIOXIDE
Abstract:We were trying to develop processing technology for cleaning ultra- fine titanium dioxide. The experiments showed, that the process is effective only if centrifuges are used. Three different suspensions of ultra-fine titanium dioxide were used. Two of the suspensions had dispersed particles of rutil in different concentrations of acid. In the third suspension dispersed particles of anatas were used. Before cleaning, the coagulant was added. In this way better results were obtained and the whole separation occured quicker. The whole process was performed in three stages. First the experiments were performed on laboratory scale and optimal process parameters were determined. Based on these results the process was performed on pilot scale. Based on all obtained parameters and results, a technology scheme was developed and the capacities for the technological process were calculated.
Keywords:titanium dioxide, nanoparticles, centrifugation, coagulation


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