Cargill Inc.

Alexander Patist

John J Hahn

Jeffrey C Evans

Ronny Leontina Marcel Vercauteren

Troy Allen Rhonemus

Christopher Austin Tyler

Andrew Keith Ohmes

An Amanda Jules Heylen

Jenna Stangler

Darren Miles Bates

Karen Ann Mikkola

John Llewellyn Yasalonis

Trent William Weatherwax

Chen-Chou Chiang

Donald Robert Clark

Disclosed are methods for the chromatographic separation of rebaudioside A from stevioside in glycoside solutions that are derived from stevia. The chromatographic separation may be an adsorb/desorb type of chromatographic separation or a fractionation type of chromatographic separation.

Separation of rebaudioside A from stevia glycosides using chromatography

In a process for beneficiating phosphate rock a slurry is provided having 30% to 70% by weight of a liquid phase and having a solid phase comprising clay, sand, and phosphate rock. In the process, the slurry is exposed to ultrasonic energy released from a sonotrode located within the slurry. The slurry may be exposed to the ultrasonic energy for less than 10 seconds. The ultrasonic energy may be produced by a piezoceramic transducer to have a resonance frequency within the range of from 16 kHz to 100 kHz. The ultrasonic energy may have an intensity within the range of from 0.0001 W/cmto about 1000 W/cm. The ultrasonic energy may create cavitational forces within the slurry. After exposure to ultrasonic energy, clay and sand are separated from the phosphate rock, perhaps using an air flotation process and a cycloning process.

Treatment of phosphate material using directly supplied, high power ultrasonic energy

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Shakopee, MN, United States of America

Alexander Patist