Solvent solubilization, characterization, and quantitation of aliphatic carboxylic acids in oil shale retort water following chemical derivatization with boron trifluoride in methanol

Acidic oxygen compounds in the Irati shale oil

“…Carboxylic acids are precursors and intermediates in biological processes and have geological significance, as they have been widely found in coals, shale bitumens, and petroleums and have also been reported as products of biodegradation of crude oils (Mackenzie et al, 1983; Beahr and Albrecht, 1984). In respect to shale oils, carboxylic acids have been characterized in retort waters (for example, Riley et al (1979)) but appear to be less commonly reported in the shale oils (Van Meter et al, 1952;Fookes and Walters, 1990). Perhaps this may be explained by the fact that carboxylic acids are much less abundant in such samples than phenols.…”

“…Compound assignment from mass spectral interpretation and retention time data of standard C16 and C18 methyl esters. Bodoev et al, 1990;Baset et al, 1980) 10 petroleums (Jaffe et al, 1988;Mackenzie et al, 1983;Beahr and Albrecht, 1984) oil shales (Fish, 1980;Cardoso and Chicarelli, 1983;Carvalhaes and Cardoso, 1986a) shale oils (Fookes and Walters, 1990;Riley et al, 1979) " Mass fragmentogram.…”