Effect of weathering on caking and coking properties of coal

✍ Scribed by Samir Sarkar

• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 240 KB
• Volume: 59
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(80)90206-9

✦ Synopsis

at room temperature.

The mixture was added to water (500 ml) and the precipitated derivatives filtered. The acetylated sample was freeze-dried with benzene.

The increase in solubility of the coal-derived liquids in benzene and chloroform owing to silylation and acetylation are shown in Tables 1 and2. The solubility was measured by mixing 1.0 g of sample in 10 ml of the solvent at room temperature for 24 h. The mixture was filtered through a 5 pm teflon filter. The resulting filtrate and residue was dried and weighed. The total recovery varied from 97 to 99 wt %. ACKNOWLEDGEMENTS This work was performed under the auspices of the US Department of Energy, Contract No. E(49-18)-2211.

REFERENCES