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테트라 메칠 암모니움 하이드록사이드-觸媒에 의한 실록산의 平衡에 관한 硏究
裵長淳 단국대학교 1988 論文集 Vol.22 No.-
An experiment was made on an equilibrium mechanism of siloxane with a basic-catalyst of tetramethylammoniumhydroxide. In the equilibrium mechanism of siloxane, experiments were made on composition of reaction materials, mass ratio effect, effect of catalyst and equilibrium conditions resultant from reaction. Siloxanes used for these experiments were octamethylcyclotetra siloxane(D_4), hexamethyldisiolxane(MM), hexamethylcyclotrisiloxane(D_3), octamethyltrisiloxane(MDM) and decamethyltetrasiloxane(MD2M) etc. The reactions of siloxanes were diminishing in the order of D_4>MD_2M>MDM>MM.
裵長淳,李慶美 단국대학교 1993 論文集 Vol.27 No.-
The method of synthesis for silicon carbide by means of clay and industrial waste sawdust involves process of turning clay and sawdust by utilizing ferrous powder or ferric sulpate then baked within electric furnacd(700℃) produced coke. And then to the sample which fturned into coke NH_3, N_2 and H_2 gas were supplied and melted it (1500℃) and synthesized silicon carbide of β-SiC and by comparing the ferrous powder and ferric sulfate being employed at this time the rate of yield in the course of reaction was observed.
실록산 重合促進에 관한 대메칠썰포옥사이드의 效果에 관한 硏究
裵長淳 단국대학교 1987 論文集 Vol.21 No.-
Polymerization of siloxane can be implemented by application of acid alkali as catalysis however according to amterials various methods should be searched. The study revealed that for the polymerization of siloxane application of dimethylsuloxide has more effectiveness than that of acid, alkali. The experimentation has been undertaken by transformation of density of sulfoxide according to number of mole of siloxane and then experiment on the extent of polymerization caused by changes of temperature and time.
배장순 ( Jang Soon Bae ),박찬교 ( Chan Kyo Park ),성기천 ( Ki Chun Sung ),이석우 ( Seok Woo Lee ),황용현 ( Yong Hyun Hwang ) 한국유화학회 2004 한국응용과학기술학회지 Vol.21 No.2
N/A The adsorption of heavy metals in the waste water carried out on the various domestic clays and waste pottery. The effect of parameters such as pH, temperature, adsorption time and coexisting cations on the adsorption ability and characteristics were investigated to find out whether the clays could be used as adsorbents. Adsorption equilibrium was reached within 20 minutes on all the clays. The optimum pH was found to be above 5. When other cations such as Cu(Ⅱ) or Zn(Ⅱ) coexisted with Pb(Ⅱ), the adsorption amount of Pb(Ⅱ) decreased because of competing adsorption.