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公开(公告)号：KR1020040051775A
公开(公告)日：2004-06-19
申请号：KR1020020079440
申请日：2002-12-13
Applicant: 한국화학연구원
IPC: C07C17/269
Abstract: PURPOSE: A method for preparing dichloroiodoperfluorobutane by using a low temperature radical initiator is provided, to improve the stability of process, to reduce the cost of apparatus and to enhance conversion rate and yield. CONSTITUTION: The method comprises the step of mixing dichloroiodoperfluoroethane and tetrafluoroethylene with a low temperature radical initiator to prepare dichloroiodoperfluorobutane by telomerization, wherein the radical initiator has a half life of 1-15 hours at a temperature of -1- deg.C or less and the telomerization is carried out at a temperature of 35-80 deg.C and a pressure of 7-10 atom. Preferably the low temperature radical initiator is selected from the group consisting of diisopropyl peroxydicarbonate, t-butyl peroxypivalate and t-butyl peroxy-2-ethylhexanoate.
Abstract translation: 目的：提供使用低温自由基引发剂制备二氯二氟全氟丁烷的方法，以提高工艺的稳定性，降低设备成本，提高转化率和产率。 方案：该方法包括将二氯二氟代全氟乙烷和四氟乙烯与低温自由基引发剂混合以通过调聚制备二氯代全氟丁烷的步骤，其中自由基引发剂在-1℃或更低的温度下具有1-15小时的半衰期， 调聚在35-80℃的温度和7-10个原子的压力下进行。 优选地，低温自由基引发剂选自过氧化二碳酸二异丙酯，过氧化新戊酸叔丁酯和过氧-2-乙基己酸叔丁酯。
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公开(公告)号：KR1020040043909A
公开(公告)日：2004-05-27
申请号：KR1020020072361
申请日：2002-11-20
Applicant: 한국화학연구원
CPC classification number: C01B32/162 , C01P2004/64
Abstract: PURPOSE: Provided is a production method of carbon nanotubes with chemical stabilization and homogeneous quality by catalyst enhanced chemical vapor deposition using a transition metal/porous carrier, catalyst, treated by mechanical and chemical process. CONSTITUTION: The production method of carbon nanotubes comprises the steps of: (i) milling a transition metal/porous carrier, catalyst, in a rate of 600-800rpm for 30-120min, wherein the catalyst with a shape of sphere(100-200nm) is prepared by stirring transition metal compound such as ferrous nitrate(Fe(NO3)3·9H2O), nickel nitrate(Ni(NO3)2·6H2O) or cobalt nitrate(Co(NO3)2·6H2O) and porous carrier such as aluminum hydroxide, silicon hydroxide or graphite in organic solvent such as ethanol strongly to get suspension, and then drying; (ii) reducing the milled catalyst with H2; supplying hydrocarbon gas such as acetylene, ethylene, methane, propane, etc. to the reduced catalyst at 400-900deg.C for growing carbon nanotube on the catalyst; (iii) cooling the nanotube in Ar atmosphere. The resultant carbon nanotubes, having 20-30nm of diameter and chemically stabilized structure, are used as carrier of fuel cells and emitter for display.
Abstract translation: 目的：提供使用过渡金属/多孔载体，催化剂，通过机械和化学过程处理的催化剂增强化学气相沉积，具有化学稳定性和质量均匀的碳纳米管的制备方法。 构成：碳纳米管的制造方法包括以下步骤：（i）以600-800rpm的速度将过渡金属/多孔载体，催化剂研磨30-120分钟，其中具有球形（100-200nm）的催化剂 ）通过搅拌过渡金属化合物如硝酸亚铁（Fe（NO 3）3·9H 2 O），硝酸镍（Ni（NO 3）2·6H 2 O）或硝酸钴（Co（NO 3）2·6H 2 O）和多孔载体如 氢氧化铝，氢氧化硅或石墨在有机溶剂如乙醇中强烈地得到悬浮，然后干燥; （ii）用H2还原研磨的催化剂; 将乙炔，乙烯，甲烷，丙烷等烃气体以400-900℃的比例供给到还原催化剂中，用于在催化剂上生长碳纳米管; （iii）在Ar气氛中冷却纳米管。 具有20-30nm直径和化学稳定结构的所得碳纳米管用作燃料电池的载体和用于显示的发射体。
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公开(公告)号：KR100393130B1
公开(公告)日：2003-07-31
申请号：KR1020010013057
申请日：2001-03-14
Applicant: 대주전자재료 주식회사 , 한국화학연구원
IPC: C09K11/80
CPC classification number: Y02B20/181
Abstract: PURPOSE: Provided are a yellow phosphor of yttrium aluminate which has excellent luminance under excited state of blue light source generated from blue emitting diode, and which is suitable for white light emitting diode, and a method for producing the same. CONSTITUTION: The yellow phosphor of yttrium aluminate is represented by formula: (Y1-a-bCeaLib)3Al5O12(wherein 0.005
Abstract translation: 本发明提供一种铝酸钇黄色荧光粉及其制造方法，该荧光粉在蓝色发光二极管发出的蓝色光源激发状态下具有优异的亮度，适用于白色发光二极管。 构成：铝酸钇的黄色磷光体由下式表示：（Y1-a-bCeaLib）3Al5O12（其中0.005≤a≤0.02,0.01≤b≤0.025）。 该方法包括以下步骤：（i）将氧化铈（CeO 2）和碳酸锂（Li 2 CO 3）加入到作为基体的铝酸钇中，使得在所述基体的铝酸钇中0.005≤a≤0.02,0.01≤b≤0.025 式; （ii）将该混合物干燥并在干燥的混合物在1,200℃的气氛中预煅烧; （iii）冷却预煅烧产物，并在1650℃或更高的温度下热处理冷却的产物; 和（iv）研磨处理过的产品。
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公开(公告)号：KR1020030003890A
公开(公告)日：2003-01-14
申请号：KR1020010039742
申请日：2001-07-04
Applicant: 한국화학연구원
CPC classification number: C01B32/17 , C01B3/0021 , C01B2202/30 , C01B2203/066 , H01M8/04216
Abstract: PURPOSE: A method for purifying carbon nanotube for hydrogen storage is provided to improve storage capacity of hydrogen by purifying carbon nanotube using nitric acid, wherein the carbon nanotube is synthesized by thermal chemical vapor deposition using nickel catalyst. CONSTITUTION: The method for purifying carbon nanotube for hydrogen storage comprises the processes of preparing a mixture of nitric acid and carbon nanotube by uniformly mixing 4 to 9 moles of nitric acid with carbon nanotube in a weight ratio of 4:1; heating the mixture in the temperature range of a room temperature to 120 deg.C for 1 to 48 hours; cooling the heated mixture to a room temperature; and drying the carbon nanotube after obtaining carbon nanotube by filtering the mixture cooled to the room temperature using a polymer filter paper, wherein concentration of nitric acid is 6 to 7 moles, heating temperature is from 90 to 120 deg.C, and heating time is from 4 to 6 hours.
Abstract translation: 目的：提供一种净化用于储氢的碳纳米管的方法，通过使用硝酸净化碳纳米管来提高氢的储存能力，其中通过使用镍催化剂的热化学气相沉积合成碳纳米管。 构成：用于氢存储的碳纳米管的净化方法包括通过以4:1的重量比将4〜9摩尔硝酸与碳纳米管均匀混合来制备硝酸和碳纳米管的混合物的方法; 将混合物在室温至120℃的温度范围内加热1至48小时; 将加热的混合物冷却至室温; 并使用聚合物滤纸过滤冷却至室温的混合物，在得到碳纳米管之后干燥碳纳米管，其中硝酸浓度为6〜7摩尔，加热温度为90〜120℃，加热时间为 从4到6小时。
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公开(公告)号：KR100358811B1
公开(公告)日：2002-10-31
申请号：KR1020000002594
申请日：2000-01-20
Applicant: 한국화학연구원
IPC: C09K11/57
Abstract: 본 발명은 저전압용 갈륨산아연계 녹색 형광체 및 이의 제조방법에 관한 것으로서, 더욱 상세하게는 갈륨산아연(ZnGa
2 O
4 )을 모체로 하고 활성제로 망간(Mn)을 도핑하여 제조한 녹색 형광체에 산화아연(ZnO)을 첨가하고 열처리함으로써, 저속 전자선에서 발광 휘도가 우수하고 고진공에서도 안정한 물성을 가지며, 특히 형광표시관(Vacuum Fluorescence Display, VFD) 및 저전압 전자선 여기에 의해 구동하는 전계 방출 디스플레이(Field Emission Display, FED)에 적합하도록 고휘도를 갖는 다음 화학식(1)로 표시되는 저전압용의 산화아연이 첨가된 갈륨산아연계 녹색 형광체 및 이의 제조방법에 관한 것이다.
(Zn
a Mn
b )Ga
2 O
4 : ZnO (1)
상기 화학식에서,
a는 0.97 내지 0.997이고, b는 0.003 내지 0.03이며,
ZnO의 첨가량은 망간이 도핑된 갈륨산아연의 녹색 형광체 100 중량부를 기준하여 0.5 내지 10 중량부이다.-
Patent Agency Ranking
公开(公告)号：KR1020010073756A
公开(公告)日：2001-08-03
申请号：KR1020000002594
申请日：2000-01-20
Applicant: 한국화학연구원
IPC: C09K11/57
CPC classification number: C09K11/623 , C01P2004/03 , H01J9/20 , H01J29/20 , Y02B20/181
Abstract: PURPOSE: A green phosphor for exciting a low speed of an electronic line is provided to increase illuminant luminance in driving range for low voltage by adding a zinc oxide to the green phosphor of gallium acid zinc in which manganese doped and heat-processing the resultant material. CONSTITUTION: In a green phosphor for exciting the low speed of an electronic line, the green phosphor of gallium acid zinc for low voltage is composed of (ZnaMnb)Ga2O4:ZnO, wherein a is 0.97 to 0.997 and b is 0.003 to 0.03. An adding amount of ZnO is 0.5 to 10 weight in case that the green phosphor of gallium acid zinc in which manganese doped is 100 weight. The green phosphor has excellent illuminant luminance, excellent color purity and stable physical property at high vacuum state.
Abstract translation: 目的：提供用于激发电子线路低速的绿色荧光体，以通过向镓酸锌的绿色荧光体添加氧化锌来增加低电压驱动范围内的发光体亮度，其中锰掺杂并热处理所得材料 。 构成：在用于激发电子线路低速的绿色荧光体中，用于低电压的镓酸锌的绿色荧光体由（ZnaMnb）Ga 2 O 4：ZnO组成，其中a为0.97〜0.997，b为0.003〜0.03。 在掺杂锰的镓酸锌的绿色荧光体为100重量的情况下，ZnO的添加量为0.5〜10重量％。 绿色荧光体在高真空状态下具有优异的发光亮度，优异的色纯度和稳定的物理性能。
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公开(公告)号：KR100285274B1
公开(公告)日：2001-03-15
申请号：KR1019990000982
申请日：1999-01-15
Applicant: 한국화학연구원
Abstract: 본발명은가돌리늄알루미네이트계녹색형광체와이의제조방법에관한것으로서, 더욱상세하게는형광체모체인가돌리늄알루미네이트(GdAlO)에부활제로테르븀(Tb)을도핑함으로써저속전자선에서발광휘도와색순도가우수하고고진공에서도안정한물성을가지며저전압전자선여기에의해구동하는전계방출디스플레이(Field Emission Display, FED)에적합하도록고휘도를갖는다음화학식 1로표시되는가돌리늄알루미네이트계녹색형광체와이의제조방법에관한것이다.
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公开(公告)号：KR1020010000898A
公开(公告)日：2001-01-05
申请号：KR1020000063130
申请日：2000-10-26
IPC: B09B3/00
CPC classification number: B09B3/00 , Y02W30/522 , Y02W30/82
Abstract: PURPOSE: A method is provided, for separating precious metals such as Mg, La, Eu, Y, Tb and Ce from a waste three-wave fluorescent lamp more effectively. CONSTITUTION: The method comprises the steps of crashing waste three-wave fluorescent lamps where fluorescent material containing metals such as Mg, La, Eu, Y, Tb and Ce is coated; dipping the crashed one into various acid solutions which have the selectivity to specific metals, to dissolve the specific metals and to obtain the acid solutions containing specific metal; precipitating the specific metal in the form of a metal salt; separating the metal salt from the solution; and calcining the separated metal salt to form metal oxide.
Abstract translation: 目的：提供一种更有效地从废弃三波荧光灯中分离出贵金属如Mg，La，Eu，Y，Tb和Ce的方法。 构成：该方法包括：溅射含有金属如Mg，La，Eu，Y，Tb和Ce的荧光材料的废旧三波荧光灯的步骤; 将崩溃的物质浸入具有对特定金属的选择性的各种酸溶液中，以溶解特定金属并获得含有特定金属的酸溶液; 以金属盐的形式沉淀特定的金属; 从溶液中分离金属盐; 并煅烧分离的金属盐形成金属氧化物。
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公开(公告)号：KR1020000059660A
公开(公告)日：2000-10-05
申请号：KR1019990007436
申请日：1999-03-06
Applicant: 한국화학연구원
IPC: C09K11/08
CPC classification number: C09K11/7703 , C04B35/46 , C04B35/50 , C04B35/64 , C04B2235/3224 , C04B2235/3232 , Y02B20/181
Abstract: PURPOSE: A SrTiO3-based red fluorescent substance and its preparation method are provided, which has the excellent light-emitting brightness and color purity and the stable physical properties in high vacuum, and is suitable for field emission display (FED). CONSTITUTION: The SrTiO3-based red fluorescent substance is represented by the formula 1, wherein a is 0.0005 or more and 0.01 or less; and b is above 0 and 1.0 or less than. The method comprises the steps of adding PrCl3 and Al(OH)3 to SrTiO3 for the ratio of Pr to Al to be 0.001/0.02 to 0.005/0.50 by mol; drying the mixture; calcining it at 1,000-1,400°C at atmosphere; and pulverizing the calcined one. Preferably the ratio of PrCl3 to SrTiO3 is 0.0005-0.01 : 1 by mol; and the ratio of Al(OH)3 to SrTiO3 is less than one by mol.
Abstract translation: 目的：提供一种基于SrTiO3的红色荧光物质及其制备方法，具有优异的发光亮度和色纯度，在高真空下具有稳定的物理性能，适用于场发射显示（FED）。 构成：SrTiO 3系红色荧光物质由式1表示，其中a为0.0005以上且0.01以下， 并且b在0以上且1.0以下。 该方法包括以下步骤：将PrCl3和Al（OH）3添加到SrTiO3中，使Pr与Al的比例为0.001 / 0.02〜0.005 / 0.50摩尔; 干燥混合物; 在大气中在1000-1,400℃煅烧; 并将煅烧的粉碎。 优选PrCl 3与SrTiO 3的比例为0.0005-0.01:1（摩尔）; Al（OH）3与SrTiO3的比例小于1摩尔。
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公开(公告)号：KR101256574B1
公开(公告)日：2013-04-19
申请号：KR1020110118397
申请日：2011-11-14
Applicant: 한국화학연구원
CPC classification number: Y02E10/50 , Y02W30/20 , Y02W30/827 , B09B3/00 , C01B33/02 , Y02W30/522 , Y02W30/84
Abstract: PURPOSE: A method of collecting silicon from solar cell waste modules is provided to reduce the production cost of solar cell and to increase the productivity by collecting pure silicon at a high recovery rate from the solar cell waste modules and recycling. CONSTITUTION: A method of collecting silicon from solar cell waste modules comprises the following steps: a step of separating the cell from tempered glass by dipping a solar cell waste module including a cell containing silicon, tempered glass and adhesive adhering the cell and the tempered glass into sulfuric acid aqueous solution and removing the adhesive; and a step of collecting silicon contained in the cell by immersing the separated cell in an acid solvent. In the second step, the immersion reaction is performed by irradiating ultrasound. The ultrasound is irradiated at the intensity of 200-900 W. In the second step, stirring at a speed of 50-300 rpm is performed during the immersion reaction. The acid solvent used in the second step comprises 50-60 weight% of distilled water, 20-30 weight% of nitric acid, 5-10 weight% of hydrofluoric acid, 10-15 weight% of sulfuric acid and 5-10 weight% of acetic acid. [Reference numerals] (AA) Solar cell waste module; (BB) Removing a back sheet from the solar cell waste module; (CC) Removing adhesive by immersing in sulfuric acid; (DD) Collecting separated tempered glass and cell; (EE) Manufacturing a mixed acid solvent; (FF) Immersing the separated cell in the mixed acid solvent; (GG) Irradiating ultrasonic waves and stirring; (HH) Washing and drying extracted silicon; (II) Obtaining pure silicon;
Abstract translation: 目的：提供从太阳能电池废物模块收集硅的方法，以降低太阳能电池的生产成本，并通过从太阳能电池废物模块和回收利用高回收率收集纯硅来提高生产率。 构成：从太阳能电池废物模块收集硅的方法包括以下步骤：通过浸渍包括含有硅的电池的太阳能电池废物模块，钢化玻璃和粘附电池的钢筋和钢化玻璃来分离钢化玻璃的步骤 进入硫酸水溶液并除去粘合剂; 以及通过将分离的电池浸入酸溶剂中来收集电池中所含的硅的步骤。 在第二步骤中，通过照射超声波进行浸渍反应。 以200-900W的强度照射超声波。在第二步骤中，在浸渍反应期间以50-300rpm的速度搅拌。 在第二步骤中使用的酸溶剂包含50-60重量％的蒸馏水，20-30重量％的硝酸，5-10重量％的氢氟酸，10-15重量％的硫酸和5-10重量％ 的乙酸。 （附图标记）（AA）太阳能电池废物模块; （BB）从太阳能电池废物模块中取出背板; （CC）浸入硫酸中去除粘合剂; （DD）收集分离的钢化玻璃和电池; （EE）制造混合酸溶剂; （FF）将分离的细胞浸入混合酸溶剂中; （GG）辐射超声波并搅拌; （HH）洗涤和干燥提取的硅; （二）获得纯硅;
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