Optimization of Process Variables in the Synthesis of Tributyl Citrate Using a Polyvinylpolypyrrolidone-Supported Brønsted Acidic Ionic Liquid Catalyst

<div>Effect of the catalyst amount on the esterification of citric acid with n-butanol. Reaction conditions: citric acid, 0.06 mol; n-butanol, 0.3 mol; temperature, 115°C; time, 5 h.</div>

International Journal of Polymer Science

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Figure 2: Optimization of Process Variables in the Synthesis of Tributyl Citrate Using a Polyvinylpolypyrrolidone-Supported Brønsted Acidic Ionic Liquid Catalyst 

Figure 2 | Optimization of Process Variables in the Synthesis of Tributyl Citrate Using a Polyvinylpolypyrrolidone-Supported Brønsted Acidic Ionic Liquid Catalyst 