Mechanism of solvent extraction from coal and its chars with chloroform

✍ Scribed by T. Yoshii; F. Yoshimura

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 395 KB
• Volume: 50
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(71)90002-0

✦ Synopsis

Chloroform extraction for Yubari coal both raw and preheated at 300, 350 and 400°C was carried out at various temperatures. The following results were obtained (1) 50 cm3 of chloroform per 1 g of sample is sufficient to extract almost completely, whatever the extraction tempetature, the chloroform-soluble material of each sample; (2) with the preheated coals, the amount of chloroform extractable material increases with increase of preheating temperature but with little apparent variation of the type of extract;

(3) the evidence does not indicate whether the extract has a hmited solubility.