Brevet : EP1669459 - PROCEDE DE PURIFICATION D'ACIDE SUCCINIQUE A PARTIR D'UN LIQUIDE DE FERMENTATIO...

Titre

PROCEDE DE PURIFICATION D'ACIDE SUCCINIQUE A PARTIR D'UN LIQUIDE DE FERMENTATION

N° et date de publication de la demande

EP1669459 - 14/06/2006

Type de la demande

A1

N° et date de dépôt

EP04788382.2 - 30/09/2004

N° et date de priorité

JP2003340091 - 30/09/2003

Famille de brevets

CN1860237A ; US2006276674A1 ; WO2005030973A1 ; BRPI0414764A ; JPWO2005030973A1 ; EP1669459A1

Abrégé

Succinic acid is produced by bringing a succinic acid-containing liquid containing succinic acid and cation which is obtained by fermentation or an enzymatic method into contact with an H-type strongly acidic cation-exchange resin in an amount equivalent to or more than the amount of cation other than hydrogen ion contained in the succinic acid-containing liquid, and precipitating a crystal of succinic acid from the obtained ion-exchange-treated liquid to obtain purified succinic acid.