Citation
Noor Azeerah Abas, . and Rozita Yusoff, . and Haliza Abdul Aziz, . and Zainab Idris, . Production of palm-based glycol ester via autocatalytic esterification. pp. 117-123. ISSN 1511-2780
Abstract
The self-esterification of the lauric acid (LA) with diethylene glycol (DEG) to produce diethylene glycol dilaurate (DEG-DL) was conducted under atmospheric via conventional method. The effects of reaction temperature reactant molar ratio and stirring speed rate were studied. Results showed that the composition of DEG-DL was increased with the increase in reaction temperature and reactant molar ratio. The reaction rate was observed independent of stirring speed rate. A high conversion of LA (90) was obtained based on one-factor-at-time (OFAT) method of designing experiments. At the reaction temperature of 230C and molar ratio of LA: DEG was varied from 1:1 to 2:1 the composition of DEG-DL was increased from 50.1 to 97.2. Nuclear magnetic resonance (NMR) spectra confirmed a compound produced was DEG-DL based on structural result. The acid value of LA was reduced from 182 to 3.09 mg KOH g-1 LA. The autocatalytic esterification is a clean reaction as it omits the separation step of catalyst and solvents. The hydrophilic lipophilic balance (HLB) index calculated for DEG-DL was 7.5 and potentially functioned as a water-in-oil or oil-in-water emulsifier for cosmetic applications.
Download File
Full text available from:
Official URL: http://jopr.mpob.gov.my/wp-content/uploads/2020/03...
|
Abstract
The self-esterification of the lauric acid (LA) with diethylene glycol (DEG) to produce diethylene glycol dilaurate (DEG-DL) was conducted under atmospheric via conventional method. The effects of reaction temperature reactant molar ratio and stirring speed rate were studied. Results showed that the composition of DEG-DL was increased with the increase in reaction temperature and reactant molar ratio. The reaction rate was observed independent of stirring speed rate. A high conversion of LA (90) was obtained based on one-factor-at-time (OFAT) method of designing experiments. At the reaction temperature of 230C and molar ratio of LA: DEG was varied from 1:1 to 2:1 the composition of DEG-DL was increased from 50.1 to 97.2. Nuclear magnetic resonance (NMR) spectra confirmed a compound produced was DEG-DL based on structural result. The acid value of LA was reduced from 182 to 3.09 mg KOH g-1 LA. The autocatalytic esterification is a clean reaction as it omits the separation step of catalyst and solvents. The hydrophilic lipophilic balance (HLB) index calculated for DEG-DL was 7.5 and potentially functioned as a water-in-oil or oil-in-water emulsifier for cosmetic applications.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Palm oils |
| AGROVOC Term: | Palm kernel oil |
| AGROVOC Term: | Esters |
| AGROVOC Term: | Chemical synthesis |
| AGROVOC Term: | Esterification |
| AGROVOC Term: | NMR spectroscopy |
| AGROVOC Term: | Lauric acid |
| AGROVOC Term: | Glycols |
| AGROVOC Term: | Surfactants |
| AGROVOC Term: | Temperature |
| Depositing User: | Mr. AFANDI ABDUL MALEK |
| Last Modified: | 24 Apr 2025 00:54 |
| URI: | http://webagris.upm.edu.my/id/eprint/8954 |
Actions (login required)
 |
View Item |
