Sequential elution process
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United States of America Patent
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Jan 6, 1987
Grant Date -
N/A
app pub date -
Jul 14, 1983
filing date -
Jul 14, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process and apparatus for the separation of complex mixtures of carbonaceous material by sequential elution with successively stronger solvents. In the process, a column containing glass beads is maintained in a fluidized state by a rapidly flowing stream of a weak solvent, and the sample is injected into this flowing stream such that a portion of the sample is dissolved therein and the remainder of the sample is precipitated therein and collected as a uniform deposit on the glass beads. Successively stronger solvents are then passed through the column to sequentially elute less soluble materials.
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