Carbonization of aromatic hydrocarbons—III: Carbonization catalyzed by alkali metals

✍ Scribed by Isao Mochida; Ei-Ichi Nakamura; Keiko Maeda; Kenjiro Takeshita

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 589 KB
• Volume: 13
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(75)90050-0

✦ Synopsis

Carbonization of aromatic hydrocarbons catalyzed by alkali metals has been studied to determine what sort of cokes will be formed. Hydrocarbons studied in the present paper were in every case carbonized into isotropic carbons at high yields, regardless of the kind of alkali metals, starting materials, and the heating rate. The carbon obtained may be compared to the glassy carbon among various isotropic carbons in the sense.of its crystallite size, surface area and specific gravity, but completely differed from the carbon obtained from the same source by the aid of AlCl,. Comparing these two carbonization processes promoted by different catalysts, the isotropic nature of carbons obtained by alkali metals is assumed to be due to the extensive dehydrogenation of the intermediate accelerated by the cat&lyst. Carbonization in solvents have been also studied to observe the effect of complete complex formation on the properties of the carbon.