Abstract
LOCAL deposits of lignite were worked up under the Germans by low-temperature carbonization and subsequent hydrogenation of tar by means of converted water gas. The water which formed in the course of this process was. extracted for phenols and other organic substances by means of isobutyl acetate and the extract worked up by distillation. Phenol and the cresols were obtained in an impure state, the heavier phenolic substances being returned to the hydrogenation process.
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LOWENSTEIN, W. Solubility of Pyrocatechol in 1, 2, 4-Xylenol. Nature 157, 409 (1946). https://doi.org/10.1038/157409b0
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DOI: https://doi.org/10.1038/157409b0
