Patent ID: 9272976
Filing Date: 2016-03-01
CPC Classification: B01D,C07C

Claim Text:
1. A method for removing and purifying carboxylic acids from fermentation broths by use of an adsorption material disposed in an adsorption column, comprising: removing biomass and any solids present from the fermentation broth; nanofiltering the biomass-free and solids-free fermentation broth to remove impurities therefrom and reduce an amount of the impurities that may contact and be adsorbed into the adsorption material in the adsorption column, thereby increasing a rate of production of carboxylic acid; and removing the carboxylic acid from the nanofiltered, biomass-free, and solids free fermentation broth by adsorption to one or more solid phases of adsorption material having tertiary amino groups.