Process for the purification of undistillable solid-containing hydrocarbon fractions produced in coal-refining
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United States of America Patent
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Mar 24, 1981
Grant Date -
N/A
app pub date -
Dec 7, 1979
filing date -
Dec 11, 1978
priority date (Note) -
Expired
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Abstract
Solids are removed from solids-containing undistillable or difficultly distillable liquid hydrocarbon fractions by cooling, solidifying and pulverizing the solids-containing fractions, by contacting the pulverized material with solvent and by separating the solids, then the solvent, resulting in relatively solids-free hydrocarbon fractions.
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