Alkylnaphthalenes and other bicyclic aromatics — production and uses
Apart from naphthalene, other commercially important bicyclic aromatics are especially biphenyl (also referred to as diphenyl), acenaphthene and acenaphthylene. Like the methylnaphthalenes, they are present in varying concentrations in coal tar. Where the concentration is sufficiently high, as is the case for methylnaphthalenes and acenaphthene (or acenaphthylene), then they are recovered from coal tar; for compounds present in low concentrations, on the other hand, such as biphenyl, production is normally via a synthetic route.
KeywordsDicarboxylic Acid Diphenyl Ether Vanadium Oxide Mono Carboxylic Acid Raney Nickel
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- 1.Bhattacharya, R.N.: Isomerisation of Methylnaphthalenes over Acidic Chalcide Catalysts; J.Indian Chem. Soc., 58, 682 (1981)Google Scholar
- 2.Collin, G.: Acenaphthen; In: Ullmanns Enzykl. Tech. Chem, 4. Aufl., 7,10 (1974)Google Scholar
- 3.Gel’pern, N.I, Nosov, G.A, Zimnitskii, P.V.: Separation of β-Methylnaphthalene from its industrial fractions by the method of contact crystallization; Coke Chem. USSR, Nr.1, 44 (1982)Google Scholar