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公开(公告)号：KR1020020075058A
公开(公告)日：2002-10-04
申请号：KR1020010015232
申请日：2001-03-23
Applicant: 한국화학연구원
IPC: C09K11/02
CPC classification number: C09K11/7797 , C01P2004/03 , C04B35/6267 , Y02B20/181
Abstract: PURPOSE: A method for preparing a spherical red fluorescent substance and a spherical red fluorescent substance prepared by the method are provided, which fluorescent substance has no hollow in the inside and whose spherical shape is maintained uniformly after heating. CONSTITUTION: The spherical red fluorescent substance is represented by (YxGd(1-x-y))(2-z)BzO3 : Euy, wherein z is 0 or 1; 0
Abstract translation: 目的：提供一种通过该方法制备的球形红色荧光物质和球形红色荧光物质的方法，该荧光物质在内部没有中空，加热后球形保持均匀。 构成：球状红色荧光物质由（YxGd（1-x-y））（2-z）BzO3：Euy表示，其中z为0或1; 0 <= X <= 1; 和0.005 <= y <= 0.5。 该方法包括以下步骤：将构成荧光物质体的前体材料，将体内的活化剂前体材料和形成聚合物材料的柠檬酸和乙二醇溶解到蒸馏水或乙醇中，制备0.02-3M荧光颗粒前体 解; 将前体溶液注入喷雾装置以产生0.1-100微米的液滴; 并将液滴注入200-1,500℃的反应器中以制备荧光物质粉末并加热所得粉末。 优选地，加热过程在800-1500℃的温度下进行1-5小时。
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公开(公告)号：KR1020020050675A
公开(公告)日：2002-06-27
申请号：KR1020000079928
申请日：2000-12-21
Applicant: 한국화학연구원
IPC: C09K11/08
CPC classification number: C09K11/7795 , C01P2002/70 , C01P2004/03 , C04B35/6267 , C09K11/779 , Y02B20/181
Abstract: PURPOSE: Provided is a process for producing halophosphate-based phosphor powder by spray pyrolysis, which can produce uniform and perfect spherical powder having a high brightness. CONSTITUTION: The process comprises the steps of: preparing a 0.02-2M precursor solution of the phosphor powder by dissolving the precursor of a phosphor matrix and the precursor of an active agent doping the matrix in distilled water or alcohol; generating droplets with a diameter of 0.1-100 micrometer by injecting the precursor solution into a spray device; producing the halophosphate-based phosphor powder(formula: M5(PO4)3Cl:D) by injecting the generated droplets into a reactor with a temperature of 200-1500deg.C; additionally, post-treating the obtained phosphor powder(formula: M5(PO4)3Cl:D) at a temperature of 800-1500deg.C for 1-5 hours in the air or reduced gas. In the formula, M is at least one selected from the 2A or 2B group metal in the periodic table and D is Eu or Mn.
Abstract translation: 目的：提供通过喷雾热解生产卤代磷酸盐荧光体粉末的方法，其可以产生具有高亮度的均匀且完美的球形粉末。 方法：该方法包括以下步骤：通过将磷光体基质的前体和掺杂在基质中的活性剂的前体溶解在蒸馏水或醇中来制备磷光体粉末的0.02-2M前体溶液; 通过将前体溶液注入喷雾装置中产生直径为0.1-100微米的液滴; 通过将产生的液滴注入到温度为200-1500℃的反应器中，生产卤代磷酸盐荧光体粉末（式（M5（PO4）3Cl:D））; 此外，在空气或还原气体中，在800-1500℃的温度下将得到的荧光体粉末（式（M5（PO4）3Cl:D））后处理1-5小时。 在该式中，M是选自周期表中的2A或2B族金属中的至少一种，D是Eu或Mn。
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公开(公告)号：KR1020020040500A
公开(公告)日：2002-05-30
申请号：KR1020000070564
申请日：2000-11-24
Applicant: 한국화학연구원
IPC: B01J2/06
CPC classification number: B01J19/0033 , B01J2/04 , B01J2219/00186
Abstract: PURPOSE: Provided is a gas phase combinatorial chemistry synthetic device which synthesizes the powder of phosphors according to the composition ratio simply and continuously, controlled by a computer. The ratio of the composition is controlled by the changing quantity of the spraying solution. The device makes the synthesis fast and enables the low cost detection, in reduced time, of the composition ratio of dielectric materials, magnetic substances, material for electrodes and catalysts. CONSTITUTION: The device comprises: several solution storage tanks(1) which keep a certain quantity of various metal ion solution such as metal nitrate, metal acetate and metal chelate; a delivery pipe, a revolving speed induction motor which is computer controlled, and a solution introducing equipment which is composed of a pump head with the delivery pipe introducing a certain amount of different metal ion solution at the same time with a certain speed and time to suit each composition ratio; a high temperature tube reactor(4) or a spray equipment of air nozzle or micro wave nozzle which sprays solution as liquid into a flame reactor; a high temperature tube vapor reaction reactor with 1-2 meter length or flame reactor equipped with quarts tube or ceramic tube; a detector(5) which detects the existence or non-existence of powder and controls the operation of powder recovery equipment; a filter connected to a vacuum pump(7) and a continuous powder collecting equipment(6) composed of revolving belt with the filter which is controlled by a computer; a recovery equipment(8) for waste solution and waste powder which are not collected; and a computer(9) controlling the whole device.
Abstract translation: 目的：提供一种气相组合化学合成装置，其根据组成比简单且连续地合成荧光粉粉末，由计算机控制。 组合物的比例由喷雾溶液的变化量控制。 该装置使得合成快速，并且能够在缩短的时间内低成本地检测介电材料，磁性物质，电极材料和催化剂的组成比。 构成：该装置包括：几个溶液储罐（1），保存一定量的各种金属离子溶液，如金属硝酸盐，金属乙酸盐和金属螯合物; 输送管，计算机控制的转速感应电动机和由泵头组成的解决方案导入装置，输送管同时以一定的速度和时间引入一定量的不同的金属离子溶液 适合各组成比; 高温管式反应器（4）或空气喷嘴或微波喷嘴的喷雾设备，将溶液作为液体喷射到火焰反应器中; 长1-2米的高温管蒸汽反应釜或配有石英管或陶瓷管的火焰反应器; 检测器（5），其检测粉末的存在或不存在并控制粉末回收设备的操作; 连接到真空泵（7）的过滤器和由计算机控制的具有过滤器的旋转带组成的连续粉末收集设备（6） 不收集废液和废粉的回收设备（8） 以及控制整个设备的计算机（9）。
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公开(公告)号：KR100513494B1
公开(公告)日：2005-09-08
申请号：KR1020030055984
申请日：2003-08-13
Applicant: 한국화학연구원
Abstract: 본 발명은 플라즈마 디스플레이 패널의 전극 형성방법에 관한 것으로, 금속 시드층의 형성시 기판의 표면 위에 직접 흑색 금속을 무전해도금의 방법으로 형성함으로써 고가의 증착장치를 사용하지 않아도 될 뿐만 아니라, 후공정인 금속 시드층의 식각공정에서는 갈바닉 쌍의 효과를 이용하여 식각을 수행함으로써 기존 분무식 또는 침적식 식각에 비해 보다 깨끗한 식각 결과를 얻을 수 있고 공정시간 단축 및 제조비용의 절감이 가능해지는 전극 형성방법을 제공하고자 한 것이다.
이러한 본 발명에 따른 플라즈마 디스플레이 패널의 전극 형성방법은, 기판 상에 흑색 금속 시드층을 형성하는 공정과; 금속 시드층 상면에 감광성 수지층의 패턴을 형성하는 공정과; 감광성 수지층의 패턴을 통해 노출된 금속 시드층 위에 전기도금의 방법으로 금속 전극층을 형성하는 공정과; 감광성 수지층의 패턴 제거 후 식각 용액 내에서 금속 전극층에 양극을 연결하고 상대 전극에 음극을 연결한 다음 전원을 인가하여 금속 시드층을 선택적으로 제거하는 공정을 포함하는 것을 특징으로 한다.-
公开(公告)号：KR100503132B1
公开(公告)日：2005-07-22
申请号：KR1020020069146
申请日：2002-11-08
Applicant: 한국화학연구원
IPC: B22F9/08
Abstract: 본 발명은 구형 니켈 금속 미세분말의 제조방법에 관한 것으로서, 분무열분해 공정을 이용하여 니켈 금속 미세분말을 제조함에 있어서, 니켈 전구체 물질과 함께 첨가제로서 에틸렌디아민테트라아세트산계, 에탄올아민계 및 에틸렌디아민계 화합물 중에서 선택된 1종 이상의 킬레이트화제(chelating agent)를 첨가하는 것을 특징으로 하며, 본 발명의 방법에 따라 제조된 니켈 금속 미세분말은, 종래에 첨가제 없이 금속 전구체 물질만을 사용하여 제조하는 방법과 달리, 니켈 금속 미세분말의 형태, 평균 크기 및 크기 분포 특성이 개선되며 속이 차고 균일한 미세한 크기를 갖는 구형의 니켈 금속 미세분말을 제조할 수 있다.
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Patent Agency Ranking
公开(公告)号：KR100496051B1
公开(公告)日：2005-06-16
申请号：KR1020020062483
申请日：2002-10-14
Applicant: 한국화학연구원
IPC: C09K11/77
Abstract: 본 발명은 하기 화학식 1로 표시된, 유로피움으로 활성화된 이트륨 가돌리늄 보레이트계 적색 형광체 및 그의 제조방법에 관한 것으로서, 본 발명에 따른 이트륨 가돌리늄 보레이트계 형광체는 전구체 용액 제조시 형광체 모체로서 이트륨(Y), 가돌리늄(Gd) 및 붕소(B)를 사용하고 상기 모체를 도핑하기 위한 활성제로서 유로피움(Eu)을 사용하며, 특히 전구체 용액의 수소이온 농도를 특정 범위로 제어함에 따라, 발광 특성이 우수하고 입자 형태 및 분포가 크게 향상되며, 박형화 및 경량화가 용이하여 평판디스플레이 형광체로서 유용하게 사용될 수 있다:
(Y
1-xy Gd
x )BO
3 :Eu
y
상기 식에서,
0〈x〈1이고, 0-
公开(公告)号：KR100458126B1
公开(公告)日：2004-11-20
申请号：KR1020020001626
申请日：2002-01-11
Applicant: 한국화학연구원
Abstract: PURPOSE: Provided are a high efficiency green phosphor which is suitable for long length UV light emitting diode(LE) and actively light emitting liquid crystal display, and a method for producing the same. CONSTITUTION: The green phosphor based on barium strontium silicate, is represented by formula 1: (Ba1-xSrx)2SiO4:Eu2+yMz(wherein M is Ho, Er, Ce, Y or Gd, 0
Abstract translation: 目的：提供一种适用于长尺寸紫外发光二极管（LE）和有源发光液晶显示器的高效绿色荧光粉及其制备方法。 构成：基于硅酸钡锶的绿色磷光体由式1表示：（Ba1-xSrx）2SiO4：Eu2 + yMz（其中M是Ho，Er，Ce，Y或Gd，0
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公开(公告)号：KR1020040078759A
公开(公告)日：2004-09-13
申请号：KR1020030013603
申请日：2003-03-05
Applicant: 한국화학연구원
CPC classification number: C01G23/003 , C01P2004/64
Abstract: PURPOSE: A method for preparing a nano-sized titanate-based powder and a nano-sized titanate-based powder prepared by the method are provided, to produce a non-cohesive nano-sized titanate-based powder massively. CONSTITUTION: The method comprises the steps of dissolving a titanate-based precursor material, an organic carboxylic acid and an additive selected from a glycol and polyvalent alcohols in a solvent to prepare a titanate-based precursor solution; generating a liquid drop from the titanate-based precursor solution; and drying the liquid drop, sintering the dried one and milling the sintered one to prepare a titanate-based powder. Preferably the titanate-based precursor material is at least one selected from the group consisting of a titanium alkoxide, a titanium chloride, a titanium hydroxide and a titanium oxide; the solvent is water, an alcohol or a weak acid aqueous solution; the glycol is at least one selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, triethylene glycol, tetraethylene glycol and butanediol-1,4-hexylene glycol oxylene glycol; the organic carboxylic acid is at least one selected from the group consisting of citric acid, malic acid, mesotartaric acid, pyruvic acid and meconic acid.
Abstract translation: 目的：提供一种制备纳米尺寸钛酸酯基粉末和通过该方法制备的纳米尺寸钛酸酯基粉末的方法，以大量生产非粘性纳米尺寸的钛酸酯基粉末。 方案：该方法包括将钛酸酯基前体材料，有机羧酸和选自二元醇和多元醇的添加剂溶解在溶剂中以制备钛酸酯基前体溶液的步骤; 从钛酸盐前体溶液中产生液滴; 干燥液滴，烧结干燥后的粉末，研磨烧结后的粉末。 钛酸酯类前体材料优选为选自钛醇盐，氯化钛，氢氧化钛和氧化钛中的至少一种; 溶剂为水，醇或弱酸水溶液; 二醇是选自乙二醇，丙二醇，二甘醇，二丙二醇，聚乙二醇，聚丙二醇，三甘醇，四甘醇和丁二醇-1,4-亚己基二醇二醇的至少一种; 有机羧酸是选自柠檬酸，苹果酸，间酒石酸，丙酮酸和肉豆蔻酸中的至少一种。
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公开(公告)号：KR1020040072871A
公开(公告)日：2004-08-19
申请号：KR1020030008527
申请日：2003-02-11
Applicant: 한국화학연구원
IPC: C09K11/64
CPC classification number: C09K11/7734 , C04B35/6267 , C04B2235/3217 , C09K11/7731 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: Provided is a process for producing a blue phosphor for a plasma display panel, which keeps a spherical shape and improves a thermal property, an optical property, and the brightness and lifetime of goods. CONSTITUTION: The process comprises the steps of: spraying a precursor solution containing an aluminum(Al) compound, a barium(Ba) compound, a magnesium(Mg) compound, and an europium(Eu) compound and drying and heat-decomposing at 200-1600deg.C to obtain phosphor particles, wherein the total concentration of the precursor solution is 0.02-3M; heat-treating the phosphor particles under a vacuum of 10¬-1 to 10¬-3mmHg at 200-1000deg.C; reduction heat-treating the heat-treated phosphor particles under an atmospheric pressure at 1300-1500deg.C by using a hydrogen/nitrogen mixture gas.
Abstract translation: 目的：提供一种制造用于等离子体显示面板的蓝色荧光体的方法，其保持球形并提高了热性能，光学性能以及商品的亮度和寿命。 方法：该方法包括以下步骤：喷涂含有铝（Al）化合物，钡（Ba）化合物，镁（Mg）化合物和铕（Eu）化合物的前体溶液，并在200℃下干燥和热分解 -1600℃以获得荧光体颗粒，其中前体溶液的总浓度为0.02-3M; 在200-1000℃的10〜1〜10〜3mmHg的真空下热处理荧光体粒子; 通过使用氢/氮混合气体在1300-1500℃的大气压下还原热处理的荧光体颗粒进行热处理。
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公开(公告)号：KR1020040069404A
公开(公告)日：2004-08-06
申请号：KR1020030005760
申请日：2003-01-29
Applicant: 한국화학연구원
CPC classification number: C01F17/0043 , C01P2004/64
Abstract: PURPOSE: Provided is a preparation method of nano-sized ceria powder(CeO2) with no agglomeration by forming hollow or porous ceria precursor powder by thermal spraying ceria precursor solution containing organic materials. CONSTITUTION: The CeO2 powder is prepared by the following steps of: (i) preparing ceria precursor solution, having 0.02-3M of Ce, by dissolving cerium salt selected from acetate, nitrate, chloride or hydroxide of cerium and organic additives comprising carboxylic acid and glycol(or multivalent alcohol) into water or alcohol, wherein cerium salt and organic additives are mixed in a molar ratio of 1 : 0.001-2, and 0.1-0.3M of ethylenediaminetetraacetic acid(EDTA) is optionally added to form polymeric materials. The organic additives are carboxylic acid(citric acid, malic acid or pyruvic acid), and glycol(ethylene glycol, propylene glycol or polyethylene glycol) or multivalent alcohol(trivalent alcohol or tetravalent alcohol), wherein carboxylic acid and glycol or multivalent alcohol are mixed in a weight ratio of 1 : 0.1-10; (ii) thermal spraying precursor solution to form liquid drops(0.01-100micrometer size); (iii) thermal drying liquid drops at 200-1500deg.C for 0.1-10sec to form hollow or porous ceria precursor powder by decomposing organic or polymeric precursors; (iv) sintering ceria precursor powder at 500-1200deg.C for 10-600min and milling. Also, 1-50mol% of at least one metal selected from Y, Gd, Sm, Zr, Zn, Sc, Yb, etc. is optionally added to the step(i) for the preparation of metal-doped ceria powder.
Abstract translation: 目的：提供一种纳米二氧化铈粉末（CeO2）的制备方法，通过热喷涂含有机材料的二氧化铈前体溶液，通过形成中空或多孔二氧化铈前体粉末而不凝聚。 构成：通过以下步骤制备CeO 2粉末：（i）通过溶解选自乙酸盐，硝酸盐，氯化物或铈的氢氧化物的铈盐和包含羧酸的有机添加剂，制备具有0.02-3M Ce的二氧化铈前体溶液， 乙二醇（或多元醇）转化成水或醇，其中铈盐和有机添加剂以1:0.002-2的摩尔比混合，并且任选地加入0.1-0.3M的乙二胺四乙酸（EDTA）以形成聚合物。 有机添加剂是羧酸（柠檬酸，苹果酸或丙酮酸）和二醇（乙二醇，丙二醇或聚乙二醇）或多元醇（三价醇或四价醇），其中羧酸和二醇或多价醇混合 重量比为1：0.1-10; （ii）热喷雾前体溶液以形成液滴（0.01-100微米尺寸）; （iii）热干燥液体在200-1500℃下滴加0.1-10秒，通过分解有机或聚合物前体形成中空或多孔二氧化铈前体粉末; （iv）在500-1200℃烧结二氧化铈前体粉末10-600分钟并研磨。 此外，为了制备金属掺杂的二氧化铈粉末，任选地在步骤（i）中加入1-50mol％的选自Y，Gd，Sm，Zr，Zn，Sc，Yb等的至少一种金属。
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