Stephen Donegan,Philip James Goodier,Edward Leslie Marshall,Urvish Rameshchandra Pandya,Ajitkumar Mukundrai Patel
申请号:
US14912372
公开号:
US09604895B2
申请日:
2014.09.05
申请国别(地区):
US
年份:
2017
代理人:
摘要:
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.