Acesulfame potassium compositions and processes for producing same

  • US 10,023,546 B2
  • Filed: 09/14/2017
  • Issued: 07/17/2018
  • Est. Priority Date: 09/21/2016
  • Status: Active Grant
First Claim
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1. A process for producing a finished acesulfame potassium composition, the process comprising the steps of:

  • (a) contacting a cyclizing agent and a solvent selected from the group consisting of halogenated aliphatic hydrocarbons, esters of carbonic acid with lower aliphatic alcohols, nitroalkanes, alkyl-substituted pyridines, aliphatic sulfones, acetone, acetic acid, and dimethylformamide to form a cyclizing agent composition;

    (b) reacting an acetoacetamide salt with the cyclizing agent in the cyclizing agent composition to form a cyclic sulfur trioxide adduct; and

    (c) forming from the cyclic sulfur trioxide adduct the finished acesulfame potassium composition comprising non-chlorinated acesulfame potassium and less than 35 wppm 5-chloro-acesulfame potassium;

    wherein contact time from the beginning of step (a) to the beginning of step (b) is less than 60 minutes.

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