Other

Tony Lee Sander

Michael E Burns

Robert Richard Dykstra

Jeffrey Scott Dupont

Shane Kipley Kirk

Kevin John Fontenot

George Chester Zima

Bhaskar Krishna Arumugam

Robert Lee Eagan

Thomas Hugh Williams

Jarvey Eugene Felty, Jr

Gary Paul Lutz

Eddie Joseph Eckart

Jeffrey William Green

Dimmick Lee Bymaster

The invention relates to a process for purifying and decolorizing a phenyl ester salt. The process combines a phenyl ester salt with a solvent to form a mixture and then stirs the mixture to form a slurry. The phenyl ester salt is substantially insoluble in this solvent. The process then collects the phenyl ester salt from the slurry. The collected phenyl ester salt may then be optionally dried or recrystallized. The collected phenyl ester salt is dissolved in a solvent to form a solution. The solution is decolorized and then spray dried to form a powder of the phenyl ester salt. As a result of the process the phenyl ester salt powder has a higher purity and an improved color as compared to the starting phenyl ester salt.

Purification of phenyl ester salts

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Louisville, KY, United States of America

Tony Lee Sander