Ultrasonic solvation of coal in quinoline and other solvents (letter to the editor).
Kessler-T; Friedel-RA; Sharkey-AG Jr.
Fuel 1970 Apr; 49(2):222-223
The purpose of this letter is to report the high yield of dissolved material obtained by the extraction of coal in quinoline using ultrasonic energy. Seventy-nine percent of Pittsburgh seam HVAB coal was dissolved by irradiating a coal-solvent slurry at approximately 36 deg C for 24 hours.