Characterization of a Resinite Maceral Fraction

摘要

In a study of the swelling of coal macerals in organic solvents, a resinite maceral fraction was separated from Hiawatha, Utah coal. Hiawatha coal is from the Wasatch Plateau field, and dates from the Cretaceous period. Coals of the Wasatch Plateau are relatively rich in resinite. As part of the study of maceral swelling, the properties of the resinite fraction were measured. Relatively pure resinite fractions were recovered from coal using the density gradient centrifugation technique. The resinite separated from Hiawatha, Utah coal is highly aliphatic. The chemical structure of this resinite appears to be different from those of amber and resinites from bituminous coals and lignites separated and studied by Murchison (Murchison, D.G., ''Properties of Coal Macerals. Infrared Spectra of Resinites and Their Carbonized and Oxidized Products'', Coal Science, Given, P.H. Ed., Advances in Chemistry Series, 55, Am. Chem. Soc., Washington, 1966, chap. 19.), although some of the differences may be attributed to purity of the samples. The unique properties of the resinite account for its use as a chemical. 7 refs., 2 figs., 1 tab. (ERA citation 12:019914)