TABLE 6.
Review of the alcoholysis reaction of white mustard oil.
| Type of alcohol | Alcohol:oil molar ratio | Catalyst/amount (% of oil) | Temperature (°C) | Type, volume of reactor/agitation speed (rpm) | Yield (purity) (%/time) | References |
| Methanol | 2:1–10:1 | NaOH/0.2–1.0 | 50–70 | Three-neck flask, 250 mL/magnetic/800 rpm | 96.5%/ 62.12 mina | Yesilyurt et al., 2019 |
| Methanol | 6:1 | KOH/1 | 40–60 | Stirred reactor, –/600 rpm | – | Issariyakul and Dalai, 2012 |
| Methanol | 6:1 | CH3OK/0.2:1b | 60 | Stirred reactor, 500 mL/– | (>98)/1.5 h; (99)/4 h | Ciubota-Rosie et al., 2013 |
| Methanol | 6:1 | NaOH/0.8 | 70 | Stirred reactor, 2 L/– | (82)/2 h | Ahmad et al., 2013 |
| Methanol | 2:1–10:1 | NaOH/0.1–0.9 | 50–75 | Stirred reactor, 500 mL/600 rpm | 92/75 minc | Sultana et al., 2014 |
| 6:1 | KOH/0.5 | 65 | 84/75 minc | |||
| Methanolc | 14:1 | NaOH/1.2 | Room | Stirred reactor, 200 mL/magnetic | (99.3)/10 mind | Tabtabaei et al., 2015 |
| Methanol | 12% oil relative to KOH/methanol solution | KOH/0.5e | 22 | – | – | Nie et al., 2016 |
| Methanol | 25:6 mL/mL | KOH/1.8 | 65 | Erlenmeyer flask/magnetic/300 rpm | 96.56/2 h | Oshodi et al., 2014 |
| Methanol | 6:1 | KOH/0.3 | 60 | – | –/2 h | Sarala et al., 2012 |
| Methanol Ethanol, propanol, 1-butanol | 6:1 | KOH/1 CH3ONa/0.5 and 1 | 60 | Stirred reactor, –/600 rpm | (66)/1.5 hf | Issariyakul et al., 2011 |
| (66)/1.5 hf,g | ||||||
| Methanol | – | NaOH (150 mL, 1 M) | 55 | Glass container, jerked/– | –/5 min | Alam and Rahman, 2013 |
| Methanol | 6:1–8:1 | NaOH/0.7 | 60 | – | 85%/8:1 | Ahmad et al., 2008 |
| Methanol | 6:1 | KOH/1 | 60 | Three-neck flask, 250 mL/magnetic/400 and 900 rpm | (98.7%)/20 min | Kostić et al., 2018 |
| 6:1–12:1 | Quicklime/2–10 | (98.5%)/50 minh |
aOptimal conditions (methanol:oil molar ratio 7.41:1, NaOH 0.63% of oil, 61.84°C); bCatalyst:oil molar ratio; cOptimal conditions (methanol:oil molar ratio 6:1, NaOH 0.5% of oil, 65°C); dIn the presence of THF (THF:methanol 1:1 mL/mL); ewt% to methanol mass; fMethanol, two-step process with glycerol removing between steps; g1% CH3ONa; hOptimal conditions (methanol:oil molar ratio 12:1, CaO 10% of oil) and after ester purification