The effect of temperature and reaction time on lignin content of Imperata Cylindrica

Abstract

Lignin is one of the chemical components of wood beside cellulose, hemicellulose and extractive. Lignin contains phenolic hydroxyl group that are bound to phenyl propane unit, allowing lignin bonds with formaldehyde to be similar to the results of the reaction between phenol and formaldehyde. The catalytic process in lignin isolation is expected to convert lignin efficiently. Although many catalysts have been developed and shown to efficiently degrade lignin compositions, only a few catalyst can degrade lignin with good conversion. In this study we will discuss the effect of temperature and reaction time on lignin isolation from reeds and is expected to be applied later in the process of making surfactants. This research was carried out at temperatures of 70 °C, 80 °C, and 90 °C, and reaction times during (10, 20, 30, 40, and 50) minutes, with catalyst NaOH 10%. The observations of the most lignin yield obtained from the reaction temperature of 90 and the reaction time of 30 minutes as much as 30,93%. The product will be investigated by FTIR (Fourier Transform Infra Red).