Patent ID: 8202714

Claim:
A method for purifying 2,6-naphthalene dicarboxylic acid using Pseudomonas sp. HN-72 Accession No. KCTC 10819BP, wherein the method comprises the steps of: 1) inoculating the Pseudomonas sp. HN-72 onto a liquid medium, culturing the inoculum with shaking, collecting the cultured bacteria, and washing the collected bacteria with physiological saline to activate the bacteria; 2) mixing a crude naphthalene dicarboxylic acid as a matrix with a buffer solution and adjusting the pH of the mixed solution to prepare a reaction solution for subsequent purification; and 3) reacting the active bacteria prepared in step 1) with the reaction solution prepared in step 2) to convert 2-formyl-6-naphthoic acid contained in the crude naphthalene dicarboxylic acid to 2,6-naphthalene dicarboxylic acid, so that the purity of the 2,6-naphthalene dicarboxylic acid is increased.