摘要 |
<p>THE INVENTION DISCLOSES A HYDROGENATION PROCESS FOR REMOVING IMPURITIES AND CONTROLLING ACID FOR USE IN DOWNSTREAM PROCESSING OF BIOCHEMICALLY-DERIVED 1,3-PROPANEDIOL. PREFERABLY, THE BIOCHEMICALLY-DERIVED 1 ,3-PROPANEDIOL, BEFORE THE CONTACTING, HAS AN INITIAL COLOR AND,AFTER THE CONTRACTING, HAS A COLOR THAT IS LOWER THAN THE INITIAL COLOR.</p> |