LCD 제조공정에서의 폐용매 분리처리를 위한 공정 설계

윤문규; 이문용; Munkyu Yoon; Moonyong Lee

Clean Technology, Vol.14, No.4, 275-280, December, 2008

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LCD 제조공정에서의 폐용매 분리처리를 위한 공정 설계

Design of Waste Solvent Treatment Process from LCD Manufacturing Process

윤문규, 이문용 ^†

영남대학교 디스플레이화학공학부, 712-749 경북 경산시 대동 214-1

Munkyu Yoon, and Moonyong Lee^†

School of Display and Chemical Engineering, Yeungnam University, 214-1 Dae-dong Gyeongsan-si Gyeongsangbuk-do 712-749, Korea

E-mail:

초록

연구에서는 LCD 제조 공정에서 배출되는 스트리퍼와 디벨로퍼 혼합 폐액(SD폐액)과 스트리퍼 폐수의 효과적 분리 및 처리를 위한 가능한 기술로서 추출공정과 증류공정의 기술적/경제적 타당성을 검토하였다. SD폐액과 스트리퍼 폐수의 추출분리를 위한 용매로 CHCI3가 여러 가지 관점에서 가장 적절한 용매로 확인되었다. 또한 SD폐액 분리 회수를 위한 공정으로서 추출공정과 증류공정의 두 가지 공정에 대하여 정밀 전산모사를 수행한 결과 CHCI3를 이용한 추출분리공정이 단순증류공정보다 6배 정도 에너지 소요비용이 적게 소요됨을 확인할 수 있었다.

In this study, we carry out economic and technical feasibility study for treatment process of waste solvent such as SD waste solution and stripper solution from LCD manufacturing process. Extensive screening work has been done for selecting the best extraction solvent. As a result, it is shown that CHCI3 is the most adequate extraction solvent for separation and recovery of both SD waste solvent and stripper waste. Rigorous simulation study has been carried out for extraction process and distillation process as a candidate of waste solvent treatment. The result shows that the solvent extraction process is more beneficial than the simple distillation process

Keywords:SD폐액;분리처리공정;LCD 제조공정;청정분리;추출공정;증류공정;SD waste solution;Recovery process;LCD manufacturing process;Clean separation;Extraction process;Distillation process

[References]

Kang SH, Cho HJ, Park HS, "Regeneration of PR Stripper," Korean Patent Publication Number 10-2004-9100 (2004)
Thomton JD, Science and Practice of LiNd-Liquid Exhction, Vol. 1, Oxfwd Science Pub., Oxford (1992)
Schweitzer PA, Handbook of Separation Techniques for Chemical Engineers, 3rd ed., McGraw-Hill, New York (1997)
Kai F, Gmehling J, J. Chem. Eng. Data., 39, 309 (1994)
Barton AEM, Handbook of Solubility Parameters and Other Cohesion Parameters, CRC Press, Boca Raton, FL (1991)
Redelius P, Energy Fuels, 18(4), 1087 (2004)

[Related Articles]

[1] Kang SH, Cho HJ, Park HS, "Regeneration of PR Stripper," Korean Patent Publication Number 10-2004-9100 (2004)

[2] Thomton JD, Science and Practice of LiNd-Liquid Exhction, Vol. 1, Oxfwd Science Pub., Oxford (1992)

[3] Schweitzer PA, Handbook of Separation Techniques for Chemical Engineers, 3rd ed., McGraw-Hill, New York (1997)

[4] Kai F, Gmehling J, J. Chem. Eng. Data., 39, 309 (1994)

[5] Barton AEM, Handbook of Solubility Parameters and Other Cohesion Parameters, CRC Press, Boca Raton, FL (1991)

[6] Redelius P, Energy Fuels, 18(4), 1087 (2004)