HIGH PURITY DIBASIC ACID COMPOSITIONS AND METHODS OF MAKING THE SAME

摘要

High-purity dibasic acid compositions are generally disclosed. In some embodiments, the dibasic acid compositions are solutions or suspensions. In some other embodiments, the compositions are solid-state compositions. In some such embodiments, the solid-state compositions include a dibasic acid as a crystalline solid and further include a low quantity of certain impurities, such as monobasic acids, various esters, and the like. Methods and systems for making such high-purity dibasic acid compositions are also disclosed.

主权项

1. A method for hydrolyzing a dibasic ester, comprising:
introducing a dibasic ester to a reactor; and reacting the dibasic ester with water in the reactor at an elevated temperature to form a dibasic acid and one or more alcohols; wherein at least a portion of the formed alcohols are removed from the reactor during the reacting.