Cargill Inc.

Eric Christopher Bohnert

Timothy Walter Abraham

Paraskevas Tsobanakis

Erik Allen

John J Hahn

Christopher Lawrence Frank

A method for recovering a composition enriched in 3-hydroxypropionic acid from a fermentation broth comprising 3-hydroxypropionic acid and/or salts thereof comprises the steps of: (a) providing the fermentation broth having a pH of from about 2 to about 8 comprising: 3-hydroxypropionic acid and/or salts thereof, (b) acidifying the fermentation broth; (c) reducing the total sulfate ion and phosphate ion (d) distilling the resulting reduced ion aqueous solution and (e) recovering the product.

Recovery of 3-hydroxypropionic acid

A method for recovering a composition enriched in 3-hydroxypropionic acid by providing the fermentation broth, acidifying the fermentation broth; reducing the total sulfate ion and phosphate ion concentration of the resulting aqueous solution to produce a reduced ion aqueous solution; distilling the resulting reduced ion aqueous solution and recovering the resulting aqueous distillation product comprising 3-hydroxypropionic acid.

Recovery of 3-hydroxpropionic acid

A method for recovering a composition enriched in 3-hydroxypropionic acid from a fermentation broth comprising 3-hydroxypropionic acid and/or salts thereof comprises the steps of: (a) providing the fermentation broth having a pH of from about 2 to about 8 comprising 3-hydroxypropionic acid and/or salts thereof (b) acidifying the fermentation broth; (c) reducing the total sulfate ion and phosphate ion (d) distilling the resulting reduced ion aqueous solution and (e) recovering the product.

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Minneapolis, MN, United States of America

Eric Christopher Bohnert