Microwave-Assisted Preparation of Sodium Silicate as Biodiesel Catalyst from Rice Husk Ash

Autor: Ratchadaporn Puntharod, Wasinee Wongwai, Jaturon Kumchompoo
Rok vydání: 2017
Předmět:
Zdroj: Key Engineering Materials. 751:461-466
ISSN: 1662-9795
DOI: 10.4028/www.scientific.net/kem.751.461
Popis: In this research, sodium silicate (Na2SiO3) was prepared by rice husk ash reacted with 10 M sodium hydroxide. The mixtures were heated by microwave at 400, 600, and 800 watt for 5 and 10 minutes. The formation of sodium silicate was characterized by Fourier transform infrared spectrophotometer. The vibrations of (Na)O–Si–O(Na) and O–Si–O were observed at 595 and 1023-986 cm-1, respectively, except at 800 watt disappeared those vibrations. The results of flame atomic absorption spectrophotometer provided the mole ratio of sodium and silicon was 2:1 as heating the product at 600 watt for 5 and 10 minutes. The phase of sodium silicate was characterized by X-ray diffraction. Sodium silicate could be used as catalyst as in biodiesel production from palm oil. The percentage of yield was 81 by volume.
Databáze: OpenAIRE