Process for preparing esters
A process for preparing esters which comprises reacting a polycarboxylic acid with an alcohol, removing the unreacted alcohol from the resultant esterification reaction mixture, heating the crude ester at a temperature of 160 DEG to 340 DEG C., contacting the heat-treated crude ester with an adsorbe...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A process for preparing esters which comprises reacting a polycarboxylic acid with an alcohol, removing the unreacted alcohol from the resultant esterification reaction mixture, heating the crude ester at a temperature of 160 DEG to 340 DEG C., contacting the heat-treated crude ester with an adsorbent, and recovering the ester of high purity. The ester obtained has superior electrical insulation, transparency and thermal stability. |
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