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Recovery of fermentation salts from dilute aqueous solutions
(United States. Patent and Trademark Office, 1999-11-16)
Dilute solutions of fermentation sales may be concentrated by extracting water using low-miscibility, low-molecular-weight secondary and tertiary amines, e.g. triethylamine (TEA), diisopropyl amine (DIA), N,N-diethylmethylamine ...