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Effects of borane–pyridine complex on the mesophase pitch formation from decant oil

✍ Scribed by Jangsoon Kim; Yun-Soo Lim

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
856 KB
Volume
41
Category
Article
ISSN
0008-6223

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✦ Synopsis

Mesophase pitches were prepared by adding 0.5 to 2 wt.% of a borane-pyridine complex to a decant oil in a tubing bomb reactor and heating in a fluidized-sand bath held at 500 8C for 30, 45, and 60 min, respectively. The mesophase pitches were analyzed using thermal gravimetric analysis, X-ray diffraction and polarized-light microscopy. Growth and coalescence of mesophase spheres were hindered, while the crystallinity of mesophase pitches was increased when the materials were heat treated with the boron compound. The addition of the borane-pyridine complex also accelerated the coke formation.

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✍ Yang Duk Park; Isao Mochida 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 733 KB

The preparation of mesophase pitch as a precursor for the high-performance carbon fiber from a vacuum residue of FCC-decant oil (FCC-DOVR) was studied, applying a two-stage heat treatment to improve the pitch yield as well as its liquid crystal properties. The present two-stage preparation consisted