Novel applications of continuous annular chromatography: Separation of sugars

Conference · Thu Jan 01 00:00:00 EST 1987

OSTI ID:6669607

Howard, A J; Carta, G; Byers, C H

Continuous chromatographic separations of fructose-glucose-sucrose mixtures have been investigated experimentally in a laboratory-scale continuous annular chromatograph using Ca-exchanged Dowex 50W-X8 resin as adsorbent. Comparative chromatographic separation studies have also been conducted for the system using a conventional fixed-bed column packed with the same resin. Complete resolution of fructose-glucose mixtures could be obtained both in a 60 cm-long continuous annular chromatograph and in a conventional column of the same length with sugars feed concentration up to 200 g/L. In the four-component mixture blue dextran (higher molecular weight saccharide), sucrose, glucose and fructose complete rsolution of all species except sucrose-glucose under the relatively mild separating conditions tested. The experimental results have been analyzed in terms of approximate linear chromatographic theories for fixed and rotating beds. Bed properties and equilibrium and mass transfer parameters used in the model were obtained through independent experiments. With these parameters a good fit to the experimental results was obtained. Differences in feed mixtures and dispersion characteristics contribute to the minor offset between fixed bed and continuous chromatograph results. 21 refs., 12 figs., 3 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA); Virginia Univ., Charlottesville (USA). Dept. of Chemical Engineering
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6669607
• Report Number(s): CONF-870410-16; ON: DE87007367
• Resource Relation: Conference: 193. national meeting of the American Chemical Society, Denver, CO, USA, 5 Apr 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FRUCTOSE
CHROMATOGRAPHY
GLUCOSE
SACCHAROSE
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
ION EXCHANGE MATERIALS
MASS TRANSFER
RESINS
TIME DEPENDENCE
ALDEHYDES
CARBOHYDRATES
DATA
DISACCHARIDES
HEXOSES
INFORMATION
KETONES
MATERIALS
MONOSACCHARIDES
NUMERICAL DATA
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
SACCHARIDES
SEPARATION PROCESSES
400102* - Chemical & Spectral Procedures