Micromanganese-Nodule의 選鑛에 關한 硏究(제2보)

엄제현,박동기,김익수,성일용,김종윤,김진석 三陟大學校 2003 論文集 Vol.36 No.-

For the purpose of researching of the micromanganese-nodule floatability, the test was performed by means of the flotation experiment. The sample of flotation experiment used the micromanganese nodule obtained from siliceous deep-sea clay. The flotation condition in the flotation experiment were as follow. Sample size : 65mesh ∼ 200mesh Conditioning time : 10min Flotation time : 4min Air amount : 20㎖/min Promoter : DACI, Kerosene pH regulator : HCI, CaO From the above test the flotation results were summerized as follow. (1) The micromanganese nodule recovery was the best at pH 7∼9 (2) The micromanganese nodule recovery was the best using DACI+Kerosene in the promoter at pH 7. (3) The best recovery of micromanganese nodule was 80% using DACI 50㎎/ℓ +Kerosene 200㎎/ℓ in the promoter at pH 7.

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.

황산화 부선법에 의한 방연광의 억제에 관한 연구

엄제현,박동기,김익수,성일용,김종윤,김진석 三陟大學校 産業科學技術硏究所 2003 産業科學技術硏究論文集 Vol.8 No.1

The applicability of a sulphation-floatation process was considered in order to depress of galena in a mineral processing process of complex sulphide ores. The galena will be depressed in the floatation step because of the formation of a PbSO₄ film on the surface of galena. when a PbS bulk concentrate is treated with sulphuric acid. The optimum conditions of the sulphation treatment for depressing galena were found to be 30%. and about 5 minutes of retention, with 18 Vol. % H₂SO₄. under these conditions. galena was sulphated only slightly and thus in complete depression in the floatation.

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.

海水에 의한 雲母의 分離精製에 關한 硏究

엄제현 三陟大學校 産業科學技術硏究所 1996 産業科學技術硏究論文集 Vol.1 No.-

For the purpose of reserching the flotability of mica from the Granite, the flotation was performed by means of sea water and by means of natural water. Two types of promoter were used for the test : aionic type promoter(petroleum sulfonate) and cationic type promoter(R-3420). The results of study were as follow. In case of using R-3420 promoter by the natural water, the Mica has been recovered up to 80% with its grade of 73%. It was performed under the condition of using R-3420 pro-moter of 800g/t at pH 2.5. In case of using sea water, the rate of recovery and its grade were for loss than the above.

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

Mn-nodule의 선광에 관한 연구(제1보)

김익수,박동기,성일용,김승혁,엄제현 三陟大學校 2000 論文集 Vol.33 No.1

For the purpose of reserching the floatability of Managanese-nodule, the test was proformed by means of Zeta potential measuring and the flotation experiment for 10Å Manganite. The flotation condition in the flotation experiment were as follow. sample : Todorokite (0.3gr) sample size : 65 mesh ~ 200 mesh condition size : 10 min flotation time : 4 min air amount : 20 ㎖/min promoter : D.A.cl, S.D.S. PH regular : Hcl, CaO From the test the flotation result were summerized as follow. 1. The isoelectric point of 10Å Manganite in the Zeta potential measuring was pH 4.3. 2. The floatability of 10Å Manganite was 80% as a function of pH5 using 10mg/ℓ of D.A.cl. 3. The recovery of 10Å Manganite was best when the floatability of 10Å Manganite was 90% as using D.A.cl 80mg/ℓat PH 2.7.

三陟炭田 北部의 地質

嚴濟鉉,朴東基,金勝爀 三陟大學校 産業科學技術硏究所 1999 産業科學技術硏究論文集 Vol.4 No.-

The Jeungsan-Sabuk area(northern part of Samchok Coalfield) in the area of northern limb of Baekunsan syncline, comprises Precambrian schist complex, Cambro-Ordovician Formation(Chosun Supergroup), Carbo-Permian Formation(Pyongyang Supergroup) and Cretacious intrusive rocks. Chosun Supergroup is divided into nine formations, that is, Jangsan quartizite formation, Myobong formation, Pungchon limestone formation, Hwajeol formation, Dongjeom quartizite formation, Dumugol formation, Maggol limestone formation, Jigunsan shale formation and Duwibong limestone formation in ascending order. Pyongyang Supergroup is subdivided into five formations, namely, Manhang formation, Geumcheon formation, Jangseong formation, Hambaeksan formation and Dosagok formation from older to younger. Deposition of the Chosun Supergroup, begininng with Jangsan quartizite formation, started on the steadily subsiding stable shelf. This continued subsidence of the shelf was accompanied by some intermittent oscillation. The sedimentary basin turned into a miogeosyncline, gradually depositing th Myobong formation, Pungchon limestone formation and the peculiar limestone of thythmic pattern(Hwajeol formation), in ascending order. On the other hand, the land part was lowered to a peneplain with the subsidence of sea floor. At the beggining of Ordovician, the carbonate deposition was temporarily brought to a halt by the emerged Dongjeom sea floor where fine sands were deposited to form Dongjeom quartizite formation. The Dongjeom foor, again, became a miogeosynclinal environment which persisted until the end of middle Ordovician. Paleozoic rocks in the area are affected by E-W and NE-SE trending folding, and then followed by N-S trending faulting and thrusting. Precambrian basement crops out at the hinge zone of the Mureungdam anticline. E-W trending Baekunsan and Mureungdam folds are affected by later NE-SW trending folds. N-S trending faults are characterised by dextral sense of strike slip fault and drag folds are developed along the eastern part of the faults. Geological structures related with thrust movements are hinterland dipping duplex along the contact boundaty between the Myobong and Pungchon Formation, antiformal stacks in the eastern part of the Mureung and Pungchon formations, antiformal stacks in the eastern part of the Mureung fault and back thrusts.

石灰石鑛物의 資源의 實態와 活用 方案

朴東基,嚴濟鉉,金益壽,金勝赫 三陟大學校 2001 論文集 Vol.34 No.1

The focuse of this paper is on the analysis of putting mineral resources to high practical use. The first thing it should be is to increase the purity of raw material resources, which requires the good fineness of a limestone resource and the abundance of its deposits. There must be also blessed with a limestone resource with high practical use in its deposits. This paper was an attempt to evalate the characteristics of the deposits and potantial of a limestone resource, It also showed how we should use it practically and draw up a plan for its practical use.

광재중에 함유된 동, 아연 화합물의 분리에 관한 기초연구 (1)

조통래,엄제현 대한금속재료학회(대한금속학회) 1978 대한금속·재료학회지 Vol.16 No.2

최근 硫酸滓 및 銅轉爐滓中에서 含有하는 非鐵有價金屬의 回收, 除去하는 方法의 하나로 鹽化揮發法이 이용되게 되었다. 鹽素는 金屬과 反應하여 低融點, 低沸點의 化合物을 만든다. Slag중에 함유되어 있는 Ag, Hg, Pb, Cu, Zn, Bi, Ni, Co등의 酸化物은 鹽化物이 되기쉽고 Fe₂O₃, Al₂O₃, SiO₂ 등은 鹽化物이 되기 어렵다. 이때문에 金屬을 鹽化物로 만들어 選擇的으로 回收除去 할 수 있다. 鹽化物을 만드는 鹽化劑로서는 鹽素가스, 鹽化水素가스, 四鹽化炭素 및 固體鹽化劑로서는 Nacl과 CaCl₂등이 보통 使用된다. 本 실험에서는 鹽化劑로 Nacl을 使用하였다. Nacl이 ①式과 같을 反應을 할때 發生하는 cl₂의 의해 硫酸滓, 銅轉爐滓中에 들어있는 銅化合物, 亞鉛化合物을 鹽化揮發시킬 때의 鹽化條件을 考察한 것이다. 2Nacl+SiO₂+1/2O₂=Na₂SiO₃+cl₂ ① 硫鐵滓, 銅轉爐滓中에 存在하는 銅化合物 및 亞鉛化合物은 Cu₂O, CuO, CuFe₂O₄, ZnO, ZnFe₂O₄, Zn₂SiO₄등의 形態로 存在한다고 추정되므로 人工的으로 Cu₂O, CuO, CuFe₂O₄, ZnO, ZnFe₂O₄, Zn₂SiO₄의 化合物을 合成하여 鹽化劑로서 Nacl을 使用하였을 때 이 들 銅化合物과 亞鉛化合物에 대한 鹽化揮發率을 조사하였다. 鹽化揮發率에 미치는 反應온도, 반응가스유량, 反應時間, 鹽化劑의 첨가량 및 SiO₂의 종류에 대하여 조사하여 다음과 같은 결과를 얻었다. 1) 염화휘발율과 온도와의 관계에서 銅化合物의 경우 Cu₂O, CuO, CuFe₂O₄의 순으로 염화휘발율이 낮아진다. 亞鉛化合物의 경우는 ZnO, ZnSiO₄, Zn₂FeO₄순으로 염화휘발율이 낮아진다. Cu, Zn化合物 모두 온도가 높아질수록 휘발성이 높아진다. 2) 鹽化揮發率과 反應가스유량과의 관계에서 Cu化合物은 Cu₂O와 CuO는 反應가스유량이 100cc/min 의 이상에서는 영향을 받지않고 CuFe₂O₄는 200cc/mm이상이 되면 反應가스 유량의 증가에 영향을 받지않는다. Zn化合物에서는 반응온도 1000℃, 반응가스유량 50cc/min까지는 염화취발율이 급격히 증가하나 그 이상의 유량이 증가하여도 反應은 크게 증가하지 않는다. 3) 염화취발에 미치는 반응시간과의 영향은 Cu化合物의 경우는 반응온도 1000℃에서 반응시간 30分까지는 반응이 급격히 증가하나 반응시간이 그이상 길어지면 반응은 일정하게 조금씩 증가를 보일뿐이다. Zn化合物의 경우는 반응온도 1000℃에서 반응시간 30分정도에서 반응은 거의 종료됨을 알았다. 4) Nacl첨가량의 변화에 따른 염화휘발율은 첨가량이 변화하여도 크게 변화하지 않는다. 5) SiO₂의 종류와 염화휘발율과의 관계에서 결정질의 SiO₂가 비정질의 SiO₂를 사용했을때 보다 염화휘발율이 높음은 알았다.