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RISS 인기검색어
- 검색키워드
- 저자 : 서진기 (검색결과 5 건)
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The experimental binodal curves, tie lines, plait point, distribution coefficient, and selectivity were determined for the ternary systems of pyridine-water with eyclohexane, o-xylene, monochlorobenzene, n-butyl aeatate, aniline and ethyl acetate as solvent at 25℃ and also for the quarternary solvent-NaCl salt solution-pyridine systems at 25℃. The NaCl salt solutions were prepared with aqueous solutiom of 5%, 10% and 15% NaCl salts respectively. The experimental tie line data were correlated with the NRTL, UNIQUAC and modified UNIQUAC model, and the parameter and the calculated values of tie line were predicted. The effect of salt addition on liquid-liquid equilibria were also studied. Thus, the following results were obtained for the utilization of the basic data in the design of extraction apparatus. 1. The experimental binodal curves and tie line data were determined for the ternary solvent-water-pyridine system and the quarternary solvent-NaCl salt solution-pyridine systems, and those experimental tie line data were used to test thermodynamic consistency. 2. The calculated tie line data were well agreed with the experimental tie line data within RMSD values as shown in the Table-8,10. 3. The plait point data were obtain using method of Trebal et al and presented in Table 12 and Table 13. 4. As the concentration of NaCl salt increased 10% and 15%, plait point disappeared, and solvent extraction was well done around plait point. 5. The solutropy phenomenon was occurred by using o-xylene monochlorobenzene, n-butyl acetate at solvent, but at the concentration of HaCl salt was 10%, 15%, the solutropy phenomena was disappeared. 6. When the concentration of NaCl salt increased, the distribution coefficient and selectivity increased and the effect of solvent was improved.
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서진기 東國大學校 地域開發大學院 1992 국내석사
The purpose of this thesis is to find the direction for developing the mountain area. In order to achieve this, the thesis is focused on the concept and developmental situation of mountain area. The focus of this study which accompanied with detail data is as follows a lot of 1. It is to be needed to re-concept of the mountain area or mountain development. The development of mountain area is to be started with the balance between Mountain ecology and rational development. 2. The economic of mountain region is to be actives. The economic of the region is very important for inhabitant. To accomplish this economic goals. there are two noticable facts. 1) Mountain farming with machine. 2) Development of mountain stockraising. 3. The social development of mountain region is important. The varieties related to this social development are 1) the increasing chance about the inhabitants' commencement of works. 2) the amending the laws related to the mountain development. 3) the attitude change of inhabitants' participating in the program for mountain development. The adult education is to be accepted for attitude change.
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