Naslov
Stability determination of concentrated alumina suspensions which contain waste alumina powder

Autori
Vukšić, Milan ; Žmak, Irena ; Ćurković, Lidija ; Kocjan, Andraž ; Jenuš, Petra

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Book of Abstracts 26th Croatian Meeting of Chemists and Chemical Engineers with international participation 4th Symposium Vladimir Prelog / Galić , Nives ; Rogošić , Marko - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2019, 201-201

ISBN
987-953-6894-67-3

Skup
26. hrvatski skup kemičara i kemijskih inženjera (26HSKIKI) ; 4. simpozij Vladimir Prelog

Mjesto i datum
Šibenik, Hrvatska, 09.04.2019. - 12.04.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Alumina ; Waste ; Suspension ; Stability ; Tiron

Sažetak
This paper reports the results of studying the alumina ceramics which contain a considerable amount of waste alumina powder. During the green machining of the green body, a certain amount of waste ceramic powder is generated which remains unused. In addition, the waste ceramic powder should be disposed of as a non‐hazardous waste in a legally prescribed manner. In this paper the influence of Tiron dispersant on the stability of highly concentrated alumina (Al2O3 – Al2O3 (waste)) suspensions was investigated. The suspension stability of alumina particles has been investigated by measuring the viscosity and the zeta potential. Alumina particles were found to be optimally dispersed at pH between 8 and 10 with the dispersant Tiron. According to the conducted measurements, the investigated composition of waste alumina powder of 20 wt.%. expressed on dry weight basis of alumina powders, with the addition of optimal amounts of additives, indicates possible application in the production of ceramics products by slip casting.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti

Napomena
Croatian‐Slovenian bilateral project “Properties of monolithic and composite advanced ceramics obtained by conventional and non‐conventional sintering methods”

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