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Effect of acid treatment on mesophase formation from petroleum pitch

✍ Scribed by Lim Yun-Soo; Burtrand I. Lee

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
514 KB
Volume
27
Category
Article
ISSN
0008-6223

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Pressure effects on the yield and on the
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✍ K.J. HΓΌttinger; U. Rosenblatt πŸ“‚ Article πŸ“… 1977 πŸ› Elsevier Science 🌐 English βš– 717 KB

The pyrolysis of coal tar and petroleum pitches was studied under nitrogen pressures from 2 to 150 bar at temperatures between 300 and 600Β°C. The resulting residues were investigated by TGA, polarized-light microscopy and X-ray diffraction. It is shown that increasing pressure does not only increase