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Process for purifying monochloroacetic acid

  • US 4,383,121 A
  • Filed: 01/12/1981
  • Issued: 05/10/1983
  • Est. Priority Date: 01/16/1980
  • Status: Expired due to Fees
First Claim
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1. A process for crystallizing monochloroacetic acid, which comprises adding 5-25% by weight of water to a mixture containing monochloroacetic acid and dichloroacetic acid as the main components on the basis of sum total of monochloroacetic acid, dichloroacetic acid, and water, and subjecting the mixture to adiabatic cooling at a pressure of 133-2,660 Pa.

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