On exposing gibbsite, with granulation below 10 μm to flash calcination of 0.5 s in the regime of pneumatic transport and at temperatures above 883 K, a microcrystalline material with a high degree of amorphization was obtained, as established from data of XRD analysis. It was shown that at 883 K the mechanism of gibbsite dehydration changes with a decrease of the activation energy from 141 to 53 kJ/mol. The obtained activated alumina is characterized by a specific surface area of over 200 m2/g and a pore structure with micro- and mesopores developed in the inside of grains of the starting material.
Keywords:
activated alumina / gibbsite / flash calcination of gibbsite
Source:
Journal of Colloid And Interface Science, 1992, 150, 1, 36-41
TY - JOUR
AU - Jovanović, Nadežda N.
AU - Novaković, Tatjana
AU - Janaćković, Jovan
AU - Terlecki-Baričević, Ana V.
PY - 1992
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4732
AB - On exposing gibbsite, with granulation below 10 μm to flash calcination of 0.5 s in the regime of pneumatic transport and at temperatures above 883 K, a microcrystalline material with a high degree of amorphization was obtained, as established from data of XRD analysis. It was shown that at 883 K the mechanism of gibbsite dehydration changes with a decrease of the activation energy from 141 to 53 kJ/mol. The obtained activated alumina is characterized by a specific surface area of over 200 m2/g and a pore structure with micro- and mesopores developed in the inside of grains of the starting material.
PB - Elsevier
T2 - Journal of Colloid And Interface Science
T1 - Properties of activated alumina obtained by flash calcination of gibbsite
VL - 150
IS - 1
SP - 36
EP - 41
DO - 10.1016/0021-9797(92)90265-N
ER -
@article{
author = "Jovanović, Nadežda N. and Novaković, Tatjana and Janaćković, Jovan and Terlecki-Baričević, Ana V.",
year = "1992",
abstract = "On exposing gibbsite, with granulation below 10 μm to flash calcination of 0.5 s in the regime of pneumatic transport and at temperatures above 883 K, a microcrystalline material with a high degree of amorphization was obtained, as established from data of XRD analysis. It was shown that at 883 K the mechanism of gibbsite dehydration changes with a decrease of the activation energy from 141 to 53 kJ/mol. The obtained activated alumina is characterized by a specific surface area of over 200 m2/g and a pore structure with micro- and mesopores developed in the inside of grains of the starting material.",
publisher = "Elsevier",
journal = "Journal of Colloid And Interface Science",
title = "Properties of activated alumina obtained by flash calcination of gibbsite",
volume = "150",
number = "1",
pages = "36-41",
doi = "10.1016/0021-9797(92)90265-N"
}
Jovanović, N. N., Novaković, T., Janaćković, J.,& Terlecki-Baričević, A. V.. (1992). Properties of activated alumina obtained by flash calcination of gibbsite. in Journal of Colloid And Interface Science
Elsevier., 150(1), 36-41.
https://doi.org/10.1016/0021-9797(92)90265-N
Jovanović NN, Novaković T, Janaćković J, Terlecki-Baričević AV. Properties of activated alumina obtained by flash calcination of gibbsite. in Journal of Colloid And Interface Science. 1992;150(1):36-41.
doi:10.1016/0021-9797(92)90265-N .
Jovanović, Nadežda N., Novaković, Tatjana, Janaćković, Jovan, Terlecki-Baričević, Ana V., "Properties of activated alumina obtained by flash calcination of gibbsite" in Journal of Colloid And Interface Science, 150, no. 1 (1992):36-41,
https://doi.org/10.1016/0021-9797(92)90265-N . .
