Naslov
Activated sintering of magnesium oxide obtained from seawater

Autori
Martinac, Vanja ; Labor, Miroslav ; Mirošević-Anzulović, Meri ; Petric, Nedjeljka

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

Izvornik
Program and Book of Abstracts / Jenko, Monika - Ljubljana : Inštitut za kovinske materiale in tehnologije, Ljubljana, 2006, 125-125

Skup
14th Conference on Materials and Technology

Mjesto i datum
Portorož, Slovenija, 16.10.2006. - 18.10.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
sub-stoichiometric precipitation; over-stoichiometric precipitation; magnesium oxide from seawater; TiO2 addition; activated sintering

Sažetak
The process of isothermal sintering of magnesium oxide obtained from seawater by sub-stoichiometric (where the precipitation of magnesium hydroxide took place with 80% of the stoichiometric quantity of dolomite lime) and by over-stoichiometric precipitation (which took place with 120% of the stoichiometric quantity of dolomite lime) was examined with the addition of a mass fraction of 1%, 2% and 5% TiO2, at temperatures in the range 1550– 1750 °C, with 1 h, 3 h and 5 h of soaking at the maximum temperature. The process was followed by a determination of the product density, as well as of the B2O3 content in the sintered samples. The results indicate that besides favourably affecting the density of the sintered samples, the addition of TiO2, with increasing temperature and soaking time, also significantly reduces the B2O3 content in sintered magnesium oxide obtained from seawater. A statistical analysis of the data obtained has been performed with the "Statistica" package in order to obtain a model of the density (r) of the sintered samples of magnesium oxide relative to the temperature (t) and the time of isothermal heating (s), and the percent of added TiO2 (x).

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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