Lactate production process
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United States of America Patent
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Mar 28, 2017
Grant Date -
Jun 30, 2016
app pub date -
Sep 5, 2014
filing date -
Sep 6, 2013
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Abstract
A process for producing lactic acid is provided. The process comprises (a) reacting a stream rich in saccharide with sodium hydroxide in the presence of water to produce a reaction mixture comprising sodium lactate; (b) reacting at least a portion of the sodium lactate with HCl to produce lactic acid and sodium chloride; (c) converting at least a portion of the sodium chloride to chlorine and sodium hydroxide; and (d) recycling at least a portion of the sodium hydroxide produced in step (c) to step (a). Also provided are processes for the production of alkyl lactate, oligomeric lactic acid, lactide, alkyl lactyllactate, poly-lactic acid, propylene glycol and acrylic acid.
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