Razvoj tehnološkega postopka čiščenja ultrafinega titanovega dioksida

diplomsko delo univerzitetnega študijskega programa

Anja Pfeifer (Author), Mojca Škerget (Mentor), Željko Knez (Co-mentor)

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;

Data

Language:	Slovenian
Year of publishing:	2010
Source:	Maribor
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[A. Pfeifer]
UDC:	66.067.5(043.2)
COBISS:	15002134
Views:	2225
Downloads:	252
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Development of processing technology for cleaning ultrafine titanium dioxide
Secondary 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.
Secondary keywords:	titanium dioxide;nanoparticles;centrifugation;coagulation;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	XI, 50 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;chemical technology;chemical and related industries;kemijska tehnologija;kemijske in sorodne industrije;chemical technology of liquids;processes and equipment for treatment of or with liquids;kemijska tehnologija tekočin;procesi in oprema za obdelovanje tekočin ali za obdelovanje z njimi;
ID:	994272