서지주요정보
고체촉매 반응을 이용한 젖산의 정제 = Purification of lactic acid using solid catalyzed reaction
서명 / 저자 고체촉매 반응을 이용한 젖산의 정제 = Purification of lactic acid using solid catalyzed reaction / 최종일.
저자명 최종일 ; Choi, Jong-Il
발행사항 [대전 : 한국과학기술원, 1995].
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소장정보

등록번호

8005818

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 95035

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The reactive distillation of lactic acid using solid catalyzed reaction was investigated. To study the reactive distillation, the esterification of lactic acid with methanol and the hydrolysis of methyl lactate were carried out. Both reactions were catalyzed by acidic cation exchange resins. The reaction rate equation for the esterification and the hydrolysis reaction included the adsorption coefficient of alcohol and water. The adsorption coefficients were determined experimentally. In the experiments of the reactive distillation, the reaction products of the esterification were distilled simultaneously with the hydrolysis reaction. The feed concentration of lactic acid, the molar ratio of the esterification reactants and the concentration of catalyst in both reactions were varied in the experiments. Another alcohol was used to react with lactic acid. The lactic acid solution obtained from the fermentation was used in experiments As the feed concentration and the molar ratio of esterification reactants were decreased, the temperature of esterification mixture was increased and then the yield of purified lactic acid was increased. The yield was increased with the concentration of catalyst. But above 1.5 wt% of catalyst concentration, the concentration of catalyst had no influence on the yield. In experiments, the alcohol with low boiling temperature exhibited good yield.

서지기타정보

서지기타정보
청구기호 {MCHE 95035
형태사항 ix, 74 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jong-Il Choi
지도교수의 한글표기 : 홍원희
지도교수의 영문표기 : Won-Hi Hong
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 72-75
주제 Chemicals-purifications.
Catalysts.
Distillation.
정제 (세정) --과학기술용어시소러스
촉매. --과학기술용어시소러스
증류. --과학기술용어시소러스
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