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Science 4 April 1975:
Vol. 188. no. 4183, pp. 49 - 51
DOI: 10.1126/science.188.4183.49
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Articles

Acid-Base Structure of Coal-Derived Asphaltenes

Heinz W. Sternberg 1, Raphael Raymond 1, and Frank K. Schweighardt 1

1 Pittsburgh Energy Research Center, Energy Research and Developnment Addministration, Pittsburgh, Pennsylvania 15213

Asphaltenes, the key intermediates in the liquefaction of bituminous coals, consist of hydrogen bonded complexes which can be separated into their acidic and basic components. The acidic components contain all, while the basic components contain none, of the exchangeable protons present. The significance of these findings with respect to coal structure and coal solubilization is discussed.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Chemicals from Coal.
A. M. Squires and A. M. Squires (1976)
Science 191, 689-700
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