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Method of purifying isosaccharinate

United States Patent

7,790,134
September 7, 2010
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A method of purifying isosaccharinate by mixing sodium carbonate, potassium carbonate, sodium hydroxide or potassium hydroxide with calcium isosaccharinate, removing the precipitated calcium carbonate and adjusting the pH to between approximately 4.5 to 5.0 thereby removing excess carbonate and hydroxide to provide an acidic solution containing isosaccharinate.
Rai; Dhanpat (Yachats, OR), Moore; Robert C. (Edgewood, NM), Tucker; Mark D. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
12/ 047,351
April 2, 2008
GOVERNMENT RIGHTS The Government has rights to this invention pursuant to Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy.