The purpose of this study is to improve for the inhibition of the generating the PCH(Propylene Chlorohydrins) in HPMC(Hydroxypropylmethyl Cellulose) manufacturing process. HPMC is made of cellulose which is natural high polymer. And HPMC is applicable to several industrial areas. Especially it can be used in food industrial as an effective additive. PCH is the by-product which is generated in chemical reaction in HPMC manufacturing process. So it is essential to eliminate PCH for the improvement of product quality. Therefore we have studied to minimize the amount of PCH. It is expected that the application of HPMC could be enlarged as the result of this study.

Abstract
 1. 연구 목적과 배경
 2. HPMC 제조공정과 PCH 발생
  2.1 HPMC 제조공정
  2.2 PCH 발생 메카니즘 및 PCH 발생 요인
 3. PCH 발생 억제를 위한 공정의 최적화
  3.1 반응공정에서 PCH 발생 최소화
  3.2 탈기/중화 공정에서 PCH 최소화
  3.3 PCH 최소화를 위한 공정조건
 4. 결론
 5. 참고문헌

• 장현덕 | Hyun-Duk Jang
• 유재성 | Jae-Seong Yoo
• 김봉선 | Bong-Sun Kim