Reactive extraction of protocatechuic acid by di-n-octylamine and optimisation with Box-Behnken design.

Autor: İsayev, İsmayil, Demir, Özge, Gök, Aslı, Kırbaşlar, Şah İsmail
Předmět:
Zdroj: Indian Chemical Engineer; Dec2023, Vol. 65 Issue 6, p495-510, 16p
Abstrakt: Protocatechuic acid (PCA) is typically produced by microbial fermentation. Its separation from fermentation broth or aqueous waste streams is of great importance. This study aimed to recover PCA by a secondary amine namely di-n-octylamine (DOA). Three organic solvents, namely isobutyl methyl ketone, propyl acetate and linalool, were used with DOA. Important extraction parameters were optimised by response surface methodology. DOA/isobutyl methyl ketone system showed 95.84% extraction efficiency under the optimum conditions. The maximum E% of the DOA/propyl acetate system was 86.73%. The maximum E% of the DOA/linalool system was 81.71%. Additionally, a thermodynamic study was carried out, and the reactions were endothermic. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index