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Micromanganese-Nodule의 選鑛에 관한 硏究(제1보)
엄제현,박동기,김익수,성일용,김종윤,김진석 三陟大學校 産業科學技術硏究所 2002 産業科學技術硏究論文集 Vol.7 No.4
For the purpose of researching of the manganese recovery from the micromanganese-nodule, the test was performed by means of the ζ-potential measuring and of the floatation experiment for manganese recovery of the micromanganese nodule obtained from siliceous deep sea clay. The floatation condition in the floatation experiment were as follow. Sample size : 65mesh∼200mesh. Condition time : 10 min. Flotation time : 4 min. Air amount : 20㎖/min. Promoter : DAS, NaDS. Kerosene Dpresser : Na_2SiO_3(Water glass) PH regulator : HCl, CaO From the above test the flotation results were summerized as follow. (1) ζ-potential of micromanganese-nodule was minus(-) in the pH 3∼12. (2) The manganese recovery from the micromanganese- nodule was the best at pH 7. (3) The manganese recovery from the micromanganese- nodule was the best using DACI 50㎎/ℓ + kerosene 200㎎/ℓ in the promoter at pH 7. (4) The best manganese recoverv of the micromanganese-nodule was 80% using DACI 50㎎/ℓ + kerosene 200㎎/ℓ in the promoter and water glass 500㎎/ℓ in the depresser at pH 7. In the futurity, continuous study of the micromanganese-nodule in many kinds of site should be required.
10Å Manganite와 δ-MnO_(2)의 부유성에 관한 연구
엄제현,김익수,성일용,김종윤,김진석 三陟大學校 2006 論文集 Vol.39 No.-
For the purpose of researching the floatability of 10Å Manganite and δ-MnO_(2) from Manganese layer, the test was performed by means of the Zeta potential measuring and the floatation experiment for 10Å Manganite, δ-MnOcc. The floatation condition in the floatation experiment were as follow. Sample : δ-MnO_(2), 10Å Manganite from Manganese layer Sample size : 65mesh ~ 200mesh. condition time : 10min. Flotation time : 4 min. Air amount : 20ml/min. Promoter : DACl, NaDS, Kerosene Dpresser : Na_(2)SiO_(2)(Water glass) PH regulator : HCl, CaO From the above test the floatation result were summerized as follow. 1) It was PH 2.3 that the PZC of the 10Å Manganite - rich from Manganese nodule in the ξ - potential measuring. 2) It was PH 3.0 that the PZC of the δ-MnO_(2)- rich from Mangnaese nodule in the ξ - potential measuring. 3) It was 35% using DACl 15mg/l at PH 2.7 that the most difference of floatability of the δ-MnO_(2)- rich and 10Å Manganite - rich.
Todorokite와 δ-MnO₂의 浮遊性에 關한 硏究
엄제현,김익수,성일용,김종윤,김진석 三陟大學校 産業科學技術硏究所 2004 産業科學技術硏究論文集 Vol.9 No.1
For the purpose of reserching the floatability of Manganese-nodule, the test was porformed by means of the Zeta potential measuring and the flotation experiment for Todorokite, δ-MnO₂ The flotation condition in the flotation experiment were as follow. sample : Todorokite, δ-MnO₂ sample size : 65 mesh - 200 mesh condition time : 10 min flotation time : 4 min air amount : 20 ㎖/min promoter : D.A.Cl, S.D.S pH regulator : HCl, CaO From the above test the flotation result were summerized as follow. 1. The point of zero charge(PZC) of Todorokite in the Zeta potential measuring was pH4.3. 2. The point of zero charge of δ-MnO₂ in the Zeta potential measuring was pH3.0. 3. The best floatability of 8 δ-MnO₂ was 85% as a function of pH3.5 using DACl 10㎎/ℓ 4. The best floatability of Todorokite was 40% as a function of pH3.5 using DACl 10㎎/ℓ 5. The most difference of floatability of the δ -MnO₂ and Todorokite was 40% using DACl 10m㎎/ℓ at pH3.5
( Jeh Eun Ae ),( Lee Young Jin ),( Jang Sun Young ),( Tae Hwa Lee ),( Won Gyu Kim ),( Sung Han Kim ) 대한산부인과학회 2012 대한산부인과학회 학술대회 Vol.99 No.-
Antiphospholipid syndrome (APS) is an autoimmune disorder and it refers to groups of clinical symptoms and signs caused by antiphospholipid antibodies (aPLs). Recurrent miscarriage, early delivery, oligohydramnios, prematurity, intrauterine growth restriction (IUGR), fetal distress, fetal or neonatal thrombosis, pre-eclampsia/eclampsia, HELLP syndrome, arterial or venous thrombosis and placental insufficiency are the most severe APS-related complication for pregnant women. This is report that a case of hemolytic anemia during postpartum period associated and APS with a brief review of the literature. Key Words: Antiphospholipid syndrome, Hemolytic anemia, Pregnancy