Abstract
The constituents of low temperature tar fraction (200-300deg;C) being obtained from so called middle oil from Lurgi oven in Wakamatsu, were studied.Contents of acid, base, and olefin were estimated by acid and alkali treatments.Constituents of neutral oil which were not absorbed by above treatment, the ring analysis (Waterman method) was applied.From these experiments, the distribution of each components at 200deg;C and 300deg;C, respectively, were shown as follows;Acid (43-38%), Base (12-4%), Olefin (19-9%), Aromatic ring (10-13%), Naphthen ring (7-3%), Paraffin chain (18-13%).
