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Extractions and reactions of coals below 100 °C: 3. Comparison of extraction products of Illinois No. 6 coal

✍ Scribed by Frank R. Mayo; Lee A. Pavelka; John S. Zevely; Albert S. Hirschon

Book ID
107756312
Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
636 KB
Volume
67
Category
Article
ISSN
0016-2361

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Extractions and reactions of coals below
Extractions and reactions of coals below 100 °C: 4. Oxidations of Illinois No. 6 coal
✍ Frank R. Mayo; Lee A. Pavelka; Albert S. Hirschon; John S. Zevely 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 842 KB

This paper summarizes efforts to increase the solubilities of coal fractions, with minimum loss of carbon, by oxidations with aqueous NaOCI, oxygen, and nitric acid, at or below 60°C. The principal products were 'black acids', insoluble in water but sparingly soluble in dilute aqueous base; small pr

Extractions and reactions of coals below
Extractions and reactions of coals below 100 °C: 2. Reactions of the toluene-insoluble, pyridine-soluble fraction of Illinois No. 6 coal
✍ Frank R. Mayo; David H. Buchanan; Lee A. Pavelka; Albert S. Hirschon 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 765 KB

The toluene-insoluble, pyridine-soluble (TIPS) fractions of an Illinois No. 6 coal were investigated as a model for the insoluble portion of coal. Various TIPS fractions had number-average molecular weights (iii,) in pyridine of 9080 to 1380. These fractions were treated with a variety of reagents k