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망간과 코발트 혼합산화물의 전해방법 및 활성도에 관한 연구
康富夫,金德默 단국대학교 대학원 1988 學術論叢 Vol.12 No.-
Mixed oxides containing cobalt oxides in electrolitic manganese dioxide have been prepared by on electrochemical process on titanium anode and cathode with manganes nitrate and cobalt nitrate solution. These oxides have been prepared in various electrolysis conditions current density, bath temperature, and Mixing Ratio. According to there results, current efficiency was excellent in low current density and high bath temperature, and there mixed oxides were superior to IC Sample Activity percentage value of these oxides has heigher value than one of IC Sample. By X-ray diffraction pattern, when low current density, crystal structure is homogeneous and discharge capacity is excellent.
表面處理된 ZrO₂ 및 NiO-ZrO₂ 觸媒상에서의 I-butene의 異性化反應
金海源,姜富夫 慶一大學校 1986 論文集 Vol.2 No.1
The coprecipitate of Ni(OH)₂-Zr(OH)₄ was treated with the solution of H₂SO₄, (NH₄)₂ SO₄, H₃PO₄ and H₃BO₃. NiO-ZrO₂ modified with H₂SO₄ exhibited the highest catalytic activity for I-butene isomerization. The order of catalytic activity for the above reaction was found to be NiO-ZrO₂/ ?? >NiO-O₂/ ?? NiO-ZrO₂/ ?? . ZrO₂ modified with anions exhibited the same order of catalytic activity as NiO-ZrO₂. the order of catalytic activity of modified catalysts was in agreement with that of acid strength of catalysts.
金德默,康富夫 단국대학교 1987 論文集 Vol.21 No.-
The discharge reaction mechanism of the Leclanche cells was studied. The cell were discharged through flash light continuously. Discharge products were examined by chenical analysis and X-Ray diffraction. The discharge reaction product was MnOOH in a homogeneous solid-phase reaction. The X-Ray diffraction evidence on the single phase reduction of MnO^2 to MnOOH were presented. The products of these discharge reactions will be dependent on the kinds of Manganese Dioxide, electrloytes, potentials, and depth of discharge.
오존에 의한 폐수처리에 관한 연구 -염색폐수의 COD처리 및 탈색에 관하여-
김덕묵,강부부 한국기술사회 1982 技術士 Vol.15 No.2
This study concerns with the reduction of the COD and deceleration of dyeing wastewater from DAEGU city area by ozonation. The COD reduction by ozonation follows near linear relationships versus ozonation time, temperature and concentration. The color in dyeing wastewater and of dyes can he strikingly reduced as the water is quasi colorless after ozone treatment. COD reduction rate of wastewater was found not to be dependented on pH, however, high temperature gave better results, although economically not feasible. The ozonation of dyeing wastewater can give good results when dyes, scouring agent and sticking agents were pre-separated.