HWAHAK KONGHAK, Vol.23, No.1, 33-42, February, 1985
진공승화법에 의한 몇가지 아미노산의 분리거동과 물질전달
Separation Behavior and Mass Transfer of Some l-Amino Acid by the Vacuum Sublimation Method
초록
진공승화법에 의하여 몇가지 아미노산의 가열승화 온도와 진공도 변화에 따른 진공응축점, 승화량 및 확산거리를 실험측정하여 분리성을 조사한 결과 10-2 mmHg에서 이들 이성체 및 혼합물의 분리성이 우수하였으며 또한 th-V.C.P.선도 관계는 양호한 일치를 보였으며 아울러 이들 데이터로부터 계산된 증기압, 승화량 및 물질전달계수는 Ph/Ps=r（r=1.109∼1.195）, Ps=kGn(k=0.162, n=1.58), KG=1.375∼2.159×10-3임을 알았다.
The vacuum condensing point, velocity of sublimation and distance of diffusion were measured according to the heating sublimation temperature and vacuum degree of some l-amino acids by a vacuum sublimation method.
Their correlation and separation were investigated experimentally. Results obtained on the sublimatographic character of l-amino acids are as follows;
（1） Vacuum condensing point of l-amino acids at different heating sublimation temperature and vacuum degree are obtained.
（2） The isomers and mixtures of l-amino acids are separated completely from each other under vacuum of 10-2 mmHg.
The results are in good agreement with those expected from the th-V.C.P. curves.
（3） The ratio of vapour pressure, molar velocity of subimation and mass transfer coefficient of l-amino acids are calculated by experimented date;
Ph/Ps=r（r=1.109∼1.195）, Ps=kGn(k=0.162, n=1.58), KG=1.375∼2.159×10-3
Their correlation and separation were investigated experimentally. Results obtained on the sublimatographic character of l-amino acids are as follows;
（1） Vacuum condensing point of l-amino acids at different heating sublimation temperature and vacuum degree are obtained.
（2） The isomers and mixtures of l-amino acids are separated completely from each other under vacuum of 10-2 mmHg.
The results are in good agreement with those expected from the th-V.C.P. curves.
（3） The ratio of vapour pressure, molar velocity of subimation and mass transfer coefficient of l-amino acids are calculated by experimented date;
Ph/Ps=r（r=1.109∼1.195）, Ps=kGn(k=0.162, n=1.58), KG=1.375∼2.159×10-3