Abstract
AbstractBACKGROUNDToday there is a resurgence of interest in using short‐chain hydrophilic alcohols and salts to recover stronger polar bio‐based chemicals and fuels for use as platform chemicals and renewable alternative transportation fuels. How to reduce the extractant depletion during the recovery of other bio‐based chemicals from the fermentation broths is a problem of concern to researchers.RESULTSThe present work investigated a 1‐propanol salt aqueous two‐phase system and its application to recover bio‐based acetoin. The water + 1‐propanol + K4P2O7 system was preferred for recovering bio‐based acetoin according to the recovery of 1‐propanol in the 1‐propanol salt aqueous two‐phase ternary system and after extraction of acetoin, and the salt content in the organic phase so as to avoid the losses of salt and 1‐propanol.CONCLUSIONSubsequently, almost 100% of acetoin can be recovered from the aqueous solution; almost all of the salt was retained in the aqueous phase and more than 99% of 1‐propanol was recovered. © 2019 Society of Chemical Industry
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