Characterization of fine coal particles by steric field-flow fractionation
| Autor: | Marcus N. Myers, Kathy A. Graff, J. Calvin Giddings, Karin D. Caldwell |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
Steric effects
Field flow fractionation business.industry Chemistry General Chemical Engineering Organic Chemistry Analytical chemistry Energy Engineering and Power Technology Mineralogy Fraction (chemistry) Fractionation Characterization (materials science) Fuel Technology Particle diameter Particle-size distribution Coal business |
| Zdroj: | Fuel. 63:621-626 |
| ISSN: | 0016-2361 |
| DOI: | 10.1016/0016-2361(84)90157-1 |
| Popis: | Steric field-flow fractionation (steric FFF) is described as a method for the separation and characterization of particulate materials of particle diameter 1 μm. The theoretical basis of steric FFF is described and the concept of apparent particle radius is introduced. Experiments are described using coal ground to a few μm mean diameter. Fractionation is demonstrated by collecting fractions and reinjecting them into the device, after which they re-emerge in a position close to that of the original fraction. A size-distribution curve is obtained and compared to those generated by other means. Possible sources of discrepancies are described. The advantages and potential applications of steric FFF to process control and coal research are discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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