Solid State Mixing Preparation of CaO/Bentonite Nanocomposite and its Application to Improve the Quality of Patchouli Oil

Abstract

A novel, highly active and effective adsorbent has been developed using solid state mixing method of natural bentonite and CaO. The so called CaO/bentonite nanocomposite was determined the optimum heating temperature and bentonite-to-CaO ratio to enhance the quality of patchouli oil by purification process technology. The adsorbents were characterized by XRD, FTIR, SEM, GSA and TG/DTA. The total acid value of patchouli oil was determined by using KOH. The test method to determine physical and chemical properties of patchouli oil in Indonesia has been set nationally through SNI 06-2385-2006. A significant decrease in acid value of patchouli oil (from 5.42 to 0.34 mg KOH/g oil) was observed after purification of patchouli oil over CaO/bentonite-300 (20:80) nanocomposite. After patchouli oil purification over CaO/bentonite-300 (20:80), the concentration of patchouli alcohol (PA) was increased from 33.08 to 34.82%, while Fe content was decreased from 4.25 to 1.56 ppm.

Hydrocracking of crude palm oil to a biofuel using zirconium nitride and zirconium phosphide-modified bentonite

“…48 The calcite (ICDD 47-1743) and quartz (ICDD 00-046-1045) minerals also appeared at 29.16 and 26.23 , respectively, and were coherent with other reported profound clay-based materials. 49 The 2q peaks at 33.09 , 35.19 , and 40.03 (Fig. 1b) corresponded to the zirconium nitride phase.…”

Chemometric Classification Model for Assessing Chemical Composition Alterations in Patchouli Oil Post Zeolite Adsorption

“…Zeolite adsorbents have been used to purify PO, characterized by a color change from dark brown to clear yellow. The use of zeolite can also reduce the acid number of the PO [14] [15] [16].…”