A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions...http://www.google.com/patents/US7741516?utm_source=gb-gplus-sharePatent US7741516 - Process to enrich a carboxylic acid composition
