CPC C07D 291/06 (2013.01) [A23L 27/30 (2016.08); C07C 235/74 (2013.01); A23V 2002/00 (2013.01)] | 17 Claims |
1. A process for producing a finished acesulfame potassium composition, the process comprising the steps of:
(a) providing a solvent at an initial temperature and a cyclizing agent at an initial temperature, wherein the cyclizing agent includes sulfur trioxide;
(b) contacting a solvent and a cyclizing agent to form a cyclizing agent composition;
(c) reacting an acetoacetamide salt with the cyclizing agent in the cyclizing agent composition to form a cyclic sulfur trioxide adduct;
(d) hydrolyzing the cyclic sulfur trioxide adduct to form an acesulfame-H composition comprising acesulfame-H;
(e) neutralizing the acesulfame-H in the acesulfame-H composition to form a crude acesulfame potassium composition comprising non-chlorinated acesulfame potassium and less than 35 wppm 5-chloro-acesulfame potassium; and
(f) forming the finished acesulfame potassium composition from the crude acesulfame potassium composition;
wherein the contact time from the beginning of step (b) to the beginning of step (c) is less than 60 minutes.
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