Extraction of Anthracene and 2-Methylnaphthalene from Coal Tar and Oxidation of 2-Methylnaphthalene

蒽及2－甲基萘之提取及2－甲基萘之氧化反應

李淑娟(Shwu-Jiuan Lee) ； 陳朝棟(Chao-Tung Chen)

《中央研究院化學研究所集刊》 27期 (1980/03) Pp. 7-12

https://doi.org/10.6522/BICAS.1980.27.2

摘要

自中國鋼鐵公司煉焦之副產品煤焦油中提取蒽及2－甲基萘的過程如下，首先以特別設計之蒸餾裝置，將煤焦油中各成分大致依其沸點不同分餾收集，在110~340°間，每升高10°收集一次，自230~260°之餾分中試將2－甲基萘分離，但發現此法不適於應用，以氣體層次分析儀器可定量2－甲基萘。粗蒽油在300~360°間餾出，經壓榨成餅，依次以沸騰之苯，丙酮，熔化之氫氣化鈉及氫氧化鈉分別處理後在乙醇中結晶而得純蒽。粗蒽含有菲，咔唑，螢蒽，芘，可由氣體層析儀器定量之。2－甲基萘以硝酸鈰銨在環四醚中氧化得到2－甲基－1，4－萘醌。

並列摘要

The coal tar produced by China Steel Corporation was studied. A distillation setup for handling about 3 kg at a time was designed for smooth fractionation without bumping. Distillates were collected at 10° intervals between 110-340°. Isolation of 2-methylnaphthalene using the fractions 230-260° was found to be impractical. GC analysis of 2-methylnaphthalene was performed. Isolation of anthracene from the fraction 300-360° was carried out. Pure anthracene was obtained by pressing the crude anthracene oil to form a cake which was treated with boiling benzene and acetone. successively. followed by NaOH and KOH fusion and finally by recrystallization from ethanol. GC analysis of the crude anthracene containing phenanthrene. carbazole. fluoran-thene, pyrene, etc. was performed.2-Methylnaphthalene was oxidized with cerium ammonium nitrate in aqueous tetrahydrofuran to give 2-methyl-l,4-naphthoquinone.