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孫晋彦,李成植,金鍾和,全成均 동아대학교 환경문제연구소 1986 硏究報告 Vol.9 No.1
The purpose of this paper was to separate the copper and nickel ions from waste water using supported liquid membrane The effect of a given amount of carrier and ammonia concentration of up-stream was described. We used the LIX65N as carriers. The results were as follows 1. The distribution ratio of copper ions at equilibrium was shown linear increment according o the mole ratio of carrier concentration versus the concentration of metal ions increased to 2.0. The maximum distribution ratio of copper ions exceeded that of nickel by approximately 4-fold when the liquid membrane was saturated by carrier 2. The important parameters governing flux were carrier and ammonia concentration. We compared these two parameters, and then the latter influenced more than the former to get higher flux. The copper ions reacted with ammonia in the up-stream, it formed a complexes of Cu(NH₃)₄^(2+), and then diffused to interface of liquid membrane. 3. The flux of metal ions were increased with enlarging the distribution ratio of ordinary extraction. The principle of coupled transport was carried out by the difference of concentration of hydrogen ions. 4. We can be selectively separated in the mixing soultion of copper and nickel ions using LIX65N as carrier.
孫晋彦,金達漢,金弘龍,李秉瑄 東亞大學校 大學院 1989 大學院論文集 Vol.14 No.-
Experiments and theoretical analysis of the adsorption of phenols in the fixed bed column packed with activated carbon were performed and following results were obtained. 1. Experimental results shows good agreement with theoretical model on the adsorption of phenols in the fixed bed column. 2. In the adsorption column, particle size has critical effect on the break point compared with flow rate and height of bed. 3. Theoretical model established in this experiment can estimate the optimum values of various factors. 4. Domestic activated carbon has nearly same amount of adsorption as imported activated cabon. 5. Equilibrium relationships and diffusion coefficients from the experiments on the nitrophenols also showed good agreement with those from theoretical model.
Poly(ethylene-co-octene) - Ethylene - 1-Octene 3성분계 혼합물의 상거동
손진언 ( Jin Eun Sohn ),정성윤 ( Sung Yoon Chung ),한상훈 ( Sang Hoon Han ),이상호 ( Sang Ho Lee ) 한국고무학회 2006 엘라스토머 및 콤포지트 Vol.41 No.2
Poly(ethylene-co-15.3 mole% octene) (PEO(15)) - 1-옥텐 2성분계 혼합물과 PEO(15)와 (에틸렌+ l-옥텐) 혼합용매로 이루어진 3성분계 혼합물의 상거동을 160℃와 1,000 bar의 영역까지 측정하였다. PEO(15) - 에틸렌 - 1-옥텐 혼합물에서 에틸렌의 함량이 증가함에 따라 cloud-point 곡선이 측정되는 압력이 급격하게 높아졌다. 에틸렌 함량이 18 wt% 보다 낮을 경우, PEO(15 - 에틸렌 - 1-옥텐 혼합물에서 bubble-point 곡선과 cloud-point 곡선이 모두 관측되었다. 에틸렌 함량이 증가함에 따라 PEO(15) - 에틸렌 - l-옥텐 혼합물에서 bubble-point 곡선이 관측되는 온도 범위는 좁아졌으며, PEO(15) - 에틸렌 -1-옥텐 혼합물이 단일상으로 존재하는 온도-압력 영역이 현저히 감소하였다. 에틸렌 함량에 따라 단일상 영역이 감소하는 것은 PEO(15)와 (에틸렌 + 1-옥텐) 혼합용매 사이에 작용하는 분산인력이 줄어들기 때문이다. 에틸렌을 36 wt% 보다 적게 함유한 PEO(15) - 에틸렌 - 1-옥텐 혼합물의 단일상 영역은 온도가 높아짐에 따라 감소하였다. 이와는 대조적으로 에틸렌을 50 wt% 보다 많게 함유한 PEO(15) - 에틸렌 - 1-옥텐 혼합물의 단일상 영역은 온도가 높아짐에 따라 증가하였다. PEO(15) 용해도를 낮추는 혼합용매 사이의 극성인력과 PEO(15) 용해도를 높이는 혼합용매의 밀도는 온도가 낮아짐에 따라 증가한다. 에틸렌 함량이 50 wt% 보다 많을 경우, 혼합용매들의 극성인력 효과가 밀도 효과보다 커서 온도가 낮아짐에 따라 cloud-point 압력은 증가하였다. 에틸렌 함량이 50 wt% 보다 적을 경우, 혼합용매들의 극성인력 효과가 밀도 효과보다 작아서 온도가 낮아짐에 따라 cloud-point 압력은 감소하였다. Cloud-point data to 160℃ and 1,000 bar are presented with poly(ethylene-co-15.3 mole% octene) copolymers (PEO(15)) in pure 1-octene and mixtures of ethylene - 1-octene. The cloud-point curves for PEO(15) - ethylene - 1-octene mixture dramatically increase in pressure to as high as 1,000 bar with an increasing ethylene concentration. At ethylene concentrations less than 18 wt%, the ternary mixture has bubble-and cloud-point curves. As the ethylene concentration of the ternary mixture increases, the bubble-point curve and the single-phase region reduce. The reduction in the single phase region with increasing ethylene concentrations is the result of reduced dispersion interactions between PEO(15) and the mixed solvent. The single-phase region decreases with increasing temperatures when ethylene concentrations are lower than 36 wt%, whereas the single-phase region increases with temperatures at ethylene concentrations greater than 50 wt%. At ethylene concentrations greater than 50 wt% the effect of the polar interactions of the mixed solvent, which is unfavorable to dissolve PEO, is greater than the effect of the density of the mixed solvent. Therefore, the cloud-point pressures increase with a decreasing temperature. However, at ethylene concentrations less than 50 wt%, the cloud-point pressures decrease with temperature, because the effect of the polar interactions is less than the density effect.
손진언,김달한,후루야에이지,조영삼,이성식,야마시타세이치 東亞大學校 大學院 1991 大學院論文集 Vol.16 No.-
Uptake curves were obtained for p-nitrophenol/XAD-2000 resin system using a shallow-bed method for various concentration ranges at 298.2K. Distilled water was employed as solvent. The values of effective intraparticle diffusivity were detrermined by comparing experimental and theoretical uptake curves. The values obtained for solvent i. e, distilled water system was not dependent on the amount adsorbed in the higher concentration range. Those results shows that, except in the region where there is a low adsorbed amount, and adsorber packed with macrorecticular resin particles can be designed using a traditional pore diffusion model.
孫晋彦,鈴木基之 동아대학교 환경문제연구소 1987 硏究報告 Vol.10 No.1
Liquid phase adsorption of dextrose solution on the activated carbon fiber(ACF) was measured by chromatographic method in a packed column. Adsorption equilibrium constant, K_(a) was found to be 73㎤/g on ACF without bacteria growth, while in the bacterial ACF packed column K_(a) was 113㎤/g. It is suggested that for biological activated carbon fiber there is a large contribution of bacterial activity to the adsorption equilibrium constant. Rate determining step in and ACF bed was the longitudinal dispersion of adsorbate in the column. Axial dispersion coefficient, E_(z) was determined to be in proportional to flow rate and Pe=d_(p)u/E_(z)=0.0066 independent of existence of bacteria, where d_(p) is the diameter of ACF.
Vacuum Condensing Point 와 물질이동에 관한 Sublimatography(3)
손진언,김주봉 한국화학공학회 1973 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.11 No.3
We studied on the sublimatographic characters of sulfur as follows; 1) Vacuum condensing point of sulfur at different heating temperature and vacuum degree is obtained. 2) Amount of sublimation of sulfur is determined quantitatively by the sublimatography. 3) The vapor pressure, molar velocity of sublimation and mass transfer coefficient of sulfur are calculated by experimental data as follows; P_h/P_s=γ (γ=1.03) P_s^n=k G (n=0.977) (γP_s)^n'=k'G (n'=1.0) k_(gav)=1.3985 × 10^-2