Process for preparing esters

Details Process for preparing esters Process for preparing esters

1978-07-10

1980-08-05

Myers, Jane S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

2603474, 560 19, 560 20, 560 50, 560 79, 560127, 560180, 560182, 560191, C07C 6748

Patent

active

042163374

ABSTRACT:
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.degree. to 340.degree. 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.

REFERENCES:
patent: 2776984 (1957-01-01), Mention et al.
patent: 2862958 (1958-12-01), Goreau
patent: 2912457 (1959-11-01), Blaser et al.
patent: 2938837 (1960-05-01), Meyer et al.
patent: 3293282 (1966-12-01), Farrar et al.
patent: 3818071 (1974-06-01), Chilton

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