The invention provides a process for the recovery of lactic acid and products
thereof from an aqueous solution containing free lactic acid and at least one lactate
salt at a total concentration of at least 5%, the process comprising the steps
of: extracting at least 70% of the free lactic acid from the aqueous solution by
contacting the solution with a basic extractant, to form a lactic acid-containing
extract and a lactic acid-depleted, lactate salt-containing aqueous solution; separating
the lactic acid-containing extract from the depleted aqueous solution; and stripping
the extracted lactic acid from the extract by methods known per se, to form a solution
of lactic acid and a stripped extractant.