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天然 Kaolin으로부터 Zeolite Sodium A의 合成과 이온交換特性
趙泰煥,任宏 단국대학교 1988 論文集 Vol.22 No.-
The ion exchange behavior of various inorganic exchange and other types of various inorganic exchangers and other types of crystalline silicates such as clay minerals and feldspathoida has been extensively reviewed. Because of their three-dimensional framework structure, most zeolites and feldspathoids do not undergo any appreciable dimensional change with ion exchange; clay mineral, because of their two-dimensional structure, may undergo swelling or shrinking with cation exchange. The cation exchange behavior of zeolites depends upon (i) the nature of the cation species, the cation size, both anhydrous and hydrated, and cation charge; (ii) the temperature; (iii) the concentration of the cation species in solution; (iv) the anion species associated with the cation in solution; and (v) the structural characteristics of the particular zeolite. In the present paper zeolite sodium A was prepared from calcined kaolin in sodium hydroxide solution under the reaction condition of 0.5-6N NaOH, reaction time 0.5-12hr and reaction temperature 100℃. Also, the properties and structures of the exchanged zeolite sodium A with mercury, ammonium, potassium, and lithium ions were investigated. And the ion exchange capacities of synthesized zeolite sodium A from calcined kaolin and several aluminosilicates minerals for univalent mercury cation were studied by batch method. As a result, XRD, IR spectra, SEM and DTA measurements showed that the property and structure of zeolite sodium A synthesized from kaolin is similar to that of synthetic zeolite A (ZMS 4A). The optimum conditions for synthesizing zeolite sodium A were treated with aqueous 2N sodium hydroxide solution, reaction time 10-12hr at reaction temperature 100℃. And also the order of cation exchange selectivity in the synthesized zeolite sodium A, decreasing, is: Ag^+>K^+>NH^+>Li^+. For univalent mercury ion, the ion exchange selectivities in the synthesized zeolite sodium A and several aluminosilicates were decreasing in order of synthesized zeolite sodium A, alkali-treated clinoptilolite, clinoptilolite mineral, alkali-treated bentonite, kaolin mineral and bentonite mineral.
液相의 混合性이 한정된 系의 氣液平衡의 熱力學的 健全性評價에 관한 硏究
趙泰煥 단국대학교 1985 論文集 Vol.19 No.-
The experimental vapor liquid equilibrium data were Checked for thermodynamic consistency by means of the rigorous equation propose in this paper. The enthalpy of mixing data necessary for the consistency test, which was measured at 298.15K for MEK-Water system. The result of the consistency check of vapor liquid equilibrium data for MEK-water system in literature is summarized in Table 1.
趙泰圭 충주대학교 1979 한국교통대학교 논문집 Vol.12 No.1
All our people want to bring a country under a single authority, but an aspect for making perfectly the system of Kim Il-Seong's dictatorship by the puppet Goverment of North Korea is deepening more and more. At the time of Korean War, Puppets of North Korea which did not achieve the ambition of Bolshevization are strengthening spy's activity in Korea, and their ambition wanting to make Korea a communist satellite is actually magnifying day by day. In such states, I analyzed their basic idea of spy's activity, active points, infiltrating means, in case of sending the spy to Korea, and active deployment, active object, duty and the organization controlling and ordering at the back. And I explained the methods distinguishing between the armed spy and the common spy in case of spy's appearing in our village. I also explained the methods reporting to and connecting with the relaive office promptly in case of spy's appearing in our village or finding a suspect and deciding whether to take the prisoner or kill, in the course of inspecting and searching, without our forces injury. Everybody must do his best for antiespionage. All the people must unite with one in body and spirit without divding the front and the rear. And we must always have consciousness of antiespionage that I myself must defend my home and my village against the enemy.
趙泰圭 충주대학교 1977 한국교통대학교 논문집 Vol.10 No.1
The form of war has been changed according to the national system. In this paper I observed the nature of war from the aspects of warfare in the middle around the Renaissance period to the recent Korean and Vietnam war. Now-a- days every nation seeks her prosperity within the limit of peacefuf coexistance through U.N activity because the threat of the highly developed nuclear war weapon has tremendously increased from the competition of arms for the sake of the national security of each nation. As a result every nation keeps the national security by of the common organization of collective defense system. In this sense I investigated the peculiarities of the modernwar'fare that is the every type of warfare by weapons, and scientific econmic, political, ideological, and cultural warfare.