| 摘要 |
The nondistillable residue from solvent refined coal, after extraction and distillation, is sprayed into a boiling pool of a non-solvent hydrocarbon liquid, whose boiling point is at least 50 DEG F. below the melting point of the residue. The solidified product may then be separated by mechanical means and further cooled by countercurrently contacting with a pre-cooled non-solvent hydrocarbon liquid which is employed to remove the sensible heat of the solvent refined coal liquid. The product is thus further cooled from the boiling liquid bath temperature. The resulting product is found to be hard, non-porous, non-tacky and resistant to disintegration and powder formation.
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