TY - GEN
T1 - Synthesis strategy of hierarchical alumiosilicates from low grade Indonesian Kaolin with adjusted activity in acetalization reaction
AU - Hartati, Hartati
AU - Tjahjandarie, Tjitjik Srie
AU - Purwaningsih, Aning
AU - Murti, Susana
AU - Ikhtiarsih, Nastiti Mustika Rizki
AU - Mardho, Dea Zaqiatul
AU - Saputri, Nastiti Heru
AU - Lamanele, Christina Natalia
AU - Firda, Putri Bintang Dea
N1 - Publisher Copyright:
© 2020 Trans Tech Publications Ltd, Switzerland.
PY - 2020
Y1 - 2020
N2 - Synthesis strategy of hierarchical aluminosilicates was carried out by varying the starting material, type of a basic solution, and the hydrothermal condition. Aluminosilicate was synthesized using pre-treated low-quality kaolin by three kinds of basic solution, such as sodium hydroxide, sodium fluoride, and tetrapropyl ammonium hydroxide. The hydrothermal condition was carried out by gradual temperature and constant temperature. The desired mole ratio of Si/Al achieved by dealumination or by addition of silica. Products were characterized by X-ray diffraction, FTIR spectrometry, and nitrogen physisorption. Cation exchange was carried out on the product to obtain an acid catalyst. The acidity test of the catalyst was carried out by FTIR-pyridine spectrometry. The catalyst activity test was carried out to the acetalization reaction of 3,4-dimethoxybenzaldehyde with propylene glycol. The results showed that the catalyst synthesized with the basic solution of tetrapropyl ammonium hydroxide had the highest acid site number and the highest conversion of 3,4- dimethoxybenzaldehyde to acetal.
AB - Synthesis strategy of hierarchical aluminosilicates was carried out by varying the starting material, type of a basic solution, and the hydrothermal condition. Aluminosilicate was synthesized using pre-treated low-quality kaolin by three kinds of basic solution, such as sodium hydroxide, sodium fluoride, and tetrapropyl ammonium hydroxide. The hydrothermal condition was carried out by gradual temperature and constant temperature. The desired mole ratio of Si/Al achieved by dealumination or by addition of silica. Products were characterized by X-ray diffraction, FTIR spectrometry, and nitrogen physisorption. Cation exchange was carried out on the product to obtain an acid catalyst. The acidity test of the catalyst was carried out by FTIR-pyridine spectrometry. The catalyst activity test was carried out to the acetalization reaction of 3,4-dimethoxybenzaldehyde with propylene glycol. The results showed that the catalyst synthesized with the basic solution of tetrapropyl ammonium hydroxide had the highest acid site number and the highest conversion of 3,4- dimethoxybenzaldehyde to acetal.
KW - Acetalization
KW - Hierarchical aluminosilicates
KW - Kaolin
UR - http://www.scopus.com/inward/record.url?scp=85085202405&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85085202405
SN - 9783035716139
T3 - Key Engineering Materials
SP - 526
EP - 534
BT - Symposium of Materials Science and Chemistry II
A2 - Wahyuningsih, Tutik Dwi
A2 - Roto, Roto
A2 - Siswanta, Dwi
A2 - Adnan, Rohana
A2 - Commeiras, Laurent
A2 - Triyana, Kuwat
A2 - Triyana, Kuwat
A2 - Kartini, Indriana
A2 - Motuzas, Julius
PB - Trans Tech Publications Ltd
T2 - 5th International Conference on Science and Technology, ICST 2019
Y2 - 30 July 2019 through 31 July 2019
ER -