공기분위기하에서의 석탄타르핏치의 열처리

김제영; 이성영; 최재훈; 박양덕

HWAHAK KONGHAK, Vol.29, No.1, 106-110, February, 1991

Export Citation

공기분위기하에서의 석탄타르핏치의 열처리

Heat Treatment of Coal Tar Pitch under Air Blowing

김제영, 이성영, 최재훈, 박양덕

초록

석탄타르핏치를 350-400℃의 온도에서 180분까지 공기분위기하에서 열처리하여 생성된 핏치의 용해도, 원소분석, 광학적 조직 등을 조사하였다. 각 열처리 온도에서 열처리 시간이 90분 이상에서는 용해도와 C/H 비는 거의 일정하였으며, 동일 처리 시간에서는 열처리 온도가 높을수록 톨루엔 불용분 및 C/H비가 높았다. 이 온도영역에서 메조페이스는 생성되지 않았으며 광학적 조직은 톨루엔 불용분이 20wt% 이상, C/H비가 1.7이상일 때 잠재적 이방성 특성을 나타내었다. 또한 위의 시료는 결합재를 사용하지 않고 탄소성형체를 제조할 수 있는 원료로 이용할 수 있었다.

Coal tar pitch was heat treated in the temperature range of 350-400℃ under air blowing conditions and their properties such as solubility, C/H ratio, and optical texture were characterized. Solubility and C/H ratio were not varied by the heat treatment time over 90min at each heat treatment temperature and higher toluene insoluble fraction and C/H ratio were obtained as heat treatment temper-ature increased at the given treatment time. The heat treated pitch had the dormant mesophase proper-ty when the toluene insoluble fraction was higher than 20wt% and C/H ratio higher than 1.7. Prepara-tion of carbon solids without a binder could be achieved using these pitches.

[References]

Brooks JD, Taylor GH, Chem. Phys. Carbon, 4, 242 (1968)
Singer LS, U.S. Patent, 4,005,183 (1977)
Otani S, Watanabe S, Ogino H, Bull. Chem. Soc. Jpn., 45, 3715 (1972)
Singer LS, Fuel, 60, 839 (1981)
Kipling JJ, Sherwood JN, Shooter PV, Thomson NR, Carbon, 1, 315 (1964)
Otani S, Carbon, 3, 31 (1964)
Otani S, Carbon, 5, 219 (1966)
Barr JB, Lewis IC, Carbon, 16, 439 (1978)
Mochida I, Inaba T, Korai Y, Takeshida K, Carbon, 21, 543 (1983)
Maeda T, Tokmitu K, Morita M, Mochida I, 19th Biennial Conf. on Carbon, p. 164 (1989)
Otani S, Japan. Patent, 57-100186 (1982)
Otani S, Kikuchi A, Ota A, Abstracts of Conf. on Chem. Japan (April), Vol. 2, p. 1227 (1981)
Mochida I, Sone Y, Park YD, Korai Y, J. Mater. Sci., 20, 3177 (1985)
Mochida I, Korai Y, Fujitsu H, Takeshita K, Mukai K, Nakino H, J. Mater. Sci., 17, 525 (1982)
Kim JY, Ryu SK, Rhee BS, HWAHAK KONGHAK, 26(5), 486 (1988)
Kitajima E, Ishitobi T, Kaikuta M, 17th Biennial Conf. on Carbon, p. 460 (1985)
Nagakawa Y, Fujita K, Mori M, 17th Biennial Conf. on Carbon, p. 409 (1985)
Huttinger KJ, Behrenbeck K, 19th Biennial Conf. on Carbon, p. 174 (1989)
Sanada Y, Furuta T, Kimura H, Honda H, Fuel, 52, 143 (1973)

[1] Brooks JD, Taylor GH, Chem. Phys. Carbon, 4, 242 (1968)

[2] Singer LS, U.S. Patent, 4,005,183 (1977)

[3] Otani S, Watanabe S, Ogino H, Bull. Chem. Soc. Jpn., 45, 3715 (1972)

[4] Singer LS, Fuel, 60, 839 (1981)

[5] Kipling JJ, Sherwood JN, Shooter PV, Thomson NR, Carbon, 1, 315 (1964)

[6] Otani S, Carbon, 3, 31 (1964)

[7] Otani S, Carbon, 5, 219 (1966)

[8] Barr JB, Lewis IC, Carbon, 16, 439 (1978)

[9] Mochida I, Inaba T, Korai Y, Takeshida K, Carbon, 21, 543 (1983)

[10] Maeda T, Tokmitu K, Morita M, Mochida I, 19th Biennial Conf. on Carbon, p. 164 (1989)

[11] Otani S, Japan. Patent, 57-100186 (1982)

[12] Otani S, Kikuchi A, Ota A, Abstracts of Conf. on Chem. Japan (April), Vol. 2, p. 1227 (1981)

[13] Mochida I, Sone Y, Park YD, Korai Y, J. Mater. Sci., 20, 3177 (1985)

[14] Mochida I, Korai Y, Fujitsu H, Takeshita K, Mukai K, Nakino H, J. Mater. Sci., 17, 525 (1982)

[15] Kim JY, Ryu SK, Rhee BS, HWAHAK KONGHAK, 26(5), 486 (1988)

[16] Kitajima E, Ishitobi T, Kaikuta M, 17th Biennial Conf. on Carbon, p. 460 (1985)

[17] Nagakawa Y, Fujita K, Mori M, 17th Biennial Conf. on Carbon, p. 409 (1985)

[18] Huttinger KJ, Behrenbeck K, 19th Biennial Conf. on Carbon, p. 174 (1989)

[19] Sanada Y, Furuta T, Kimura H, Honda H, Fuel, 52, 143 (1973)