Articles & Issues

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

All issues

초임계 톨루엔을 이용한 핏치의 분획시 퀴놀린 첨가제의 영향

Effect of Quinoline Entrainer in Fractionation of Pitch with Supercritical Toluene

김철중 유승곤 이보성 황종식

Kim CJ Ryu SK Rhee BS Hwang JS

HWAHAK KONGHAK, August 1995, 33(4), 445-451(7), NONE

Download PDF

Abstract

초임계 톨루엔을 이용한 핏치의 분획시 공용매인 퀴놀린의 첨가량, 온도, 압력이 미치는 영향에 관하여 연구하였다. 퀴놀린의 첨가량은 0, 3, 7, 10%로 변화시켰고, 온도는 325, 345, 365℃로 하였으며, 압력은 27, 47, 67.2bar로 정하였다. 공용매인 퀴놀린의 첨가는 용해도 증가와 추출 성분의 선택성 변화를 가져왔고, 추출 잔여 핏치를 유동성이 큰 메조페이스로 전환하는데 효과적이었다. 이는 고성능 핏치계 탄소섬유용 전구체 핏치로 사용될 것으로 기대된다.

Effects of quinoline entrainer content, extraction temperature and pressure in fractionation of pitch with supercritical toluene is investigated. Quinoline contents 0, 3, 7, 10%, temperatures 325, 345, 365℃ and pressures 27, 47, 67.2 bar were selected as experimental conditions. The addition of quinoline made the solubility of pitch increase and made changes on extraction selectivity. Furthemore, it was effective on the formation of fusible mesophase pitch. So, it is anticipated that the mesophase pitch could be used as the precursor for the formation of a high-performance pitch-based carbon fiber.

Keywords

References

Chwastiak S, Barr JB, Didchenko R, Carbon, 17, 49 (1979)
Singer LS, Fuel, 60, 839 (1981)
Kim CJ, Ryu SK, Rhee BS, HWAHAK KONGHAK, 31(5), 577 (1993)
김철중, 유승곤, 이보성, 한국화학공학회 추계 학술발표회 논문초록집, 309 (1992)