Transmission Electron Microscopy of Coal Tar Pitches obtained by Soaking then Distillation
Letter to the Editor
Coal tars contain a majority of a resins mostly appearing in thin sections observed by TEM as clean isotropic droplets (no microtexture). The primary QI (a resins) are carbon blacks or plastic spheres having either a radial or an alternate texture. They are surrounded by isotropic halos (p resins in contact with a resins and yt resins in the external part) [l]. By cake filtration, the tar can be cleared of its a resins. Simultaneously the halos are removed.
Copyright © 1990, Elsevier
Lafdi, Khalid; Bonnamy, S.; Oberlin, Agnès; and Saint Romain, J.L., "Transmission Electron Microscopy of Coal Tar Pitches obtained by Soaking then Distillation" (1990). Chemical and Materials Engineering Faculty Publications. 95.