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公开(公告)号：KR100486964B1
公开(公告)日：2005-05-03
申请号：KR1020030008527
申请日：2003-02-11
Applicant: 한국화학연구원
IPC: C09K11/64
Abstract: 본 발명은 구형의 BAM계 청색 형광체의 제조에 관한 것으로, 분무열분해 공정에 의해 형성된 구형의 BAM:Eu
2+ 형광체 입자를 10
-1 내지 10
-3 mmHg 범위의 진공하에서 200 내지 1000℃에서 열처리한 후 수소/질소 혼합가스를 이용하여 1300 내지 1500℃에서 고온 환원처리하는 것을 포함하는 본 발명의 방법에 따라 제조된 BAM:Eu
2+ 형광체는, 구형을 유지하면서 열화 특성 및 광 특성이 개선되어 차세대 평판 디스플레이용 형광체로서 유용하게 사용될 수 있으며, 제품의 휘도 및 수명 향상에 크게 기여할 수 있다.-
公开(公告)号：KR100486064B1
公开(公告)日：2005-04-29
申请号：KR1020020028936
申请日：2002-05-24
Applicant: 한국화학연구원
IPC: C01G23/047 , B82B3/00
Abstract: 본 발명은 구형 티타니아 분말의 제조 방법에 관한 것으로서, 분무열분해공정을 이용하여 분말을 제조함에 있어서 티타니아 원료로서 나노 발연 티타니아(fumed titania), 및 티타늄 이소프로폭사이드(titanium isopropoxide, TTIP) 또는 금속산화물의 혼합물을 적정 비율로 혼합하여 적용함을 특징으로 하는 본 발명의 방법에 따라 제조된 티타니아 분말은, 구형의 형상을 가지면서 다공성이며 분말들간의 결합성 및 안정성이 우수하여, 전자재료용 기초 소재, 광촉매, 백색 안료 및 화장품 원료의 다양한 응용 분야에 적용될 수 있다.
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公开(公告)号：KR100451671B1
公开(公告)日：2004-10-08
申请号：KR1020020028890
申请日：2002-05-24
Applicant: 한국화학연구원
IPC: C09K11/78
Abstract: PURPOSE: A red fluorescent substance for VUV(Vacuum UltraViolet), its preparation method and a plasma display panel or light emitting lamp containing the fluorescent substance are provided, to obtain a fluorescent substance having a high absorption peak at a range of VUV and an excellent emission luminance. CONSTITUTION: The red fluorescent substance is represented by (Y1-a-b-cGdaEubMc)2O3, wherein M is a rare earth metal selected from the group consisting of Dy, Sm, Nd, Tm, Pr and Sc; and 0
Abstract translation: 目的：提供用于VUV（真空UltraViolet）的红色荧光物质，其制备方法和含有该荧光物质的等离子体显示板或发光灯，以获得在VUV范围内具有高吸收峰的荧光物质， 发光亮度。 构成：红色荧光物质由（Y1-a-b-cGdaEubMc）2O3表示，其中M是选自Dy，Sm，Nd，Tm，Pr和Sc的稀土金属; 并且0 <= a <1,0.005≤b≤0.2，并且0.00001≤c≤0.1。 该方法包括以下步骤：将钇化合物，钆化合物，选自Dy，Sm，Nd，Tm，Pr和Sc的稀土金属的金属化合物，柠檬酸和乙二醇在溶剂中溶解成 准备前体溶液; 通过用气溶胶发生器喷雾所述溶液在300-1500℃下干燥和加热所述前体溶液以制备荧光物质粉末; 在800〜1500℃下加热荧光体粉末1〜5小时。
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公开(公告)号：KR100443270B1
公开(公告)日：2004-08-04
申请号：KR1020020027876
申请日：2002-05-20
Applicant: 한국화학연구원
IPC: C09K11/80
Abstract: PURPOSE: Provided are a white phosphor for exciting long wavelength ultraviolet radiation, which can be applied to a long wavelength ultraviolet emitting diode and an active light emitting type liquid crystal display, and a process for producing the white phosphor. CONSTITUTION: The white phosphor represented by the formula: (1-x)Al2O3·SiO2:Eu¬2+, contains Al2O3-SiO2 as a matrix and europium(Eu) as an active agent, wherein 0
Abstract translation: 目的：提供一种用于激发长波长紫外线辐射的白色荧光粉，它可应用于长波长紫外线发光二极管和有源发光型液晶显示器，以及一种制造白色荧光粉的方法。 构成：由式（1-x）Al 2 O 3＆amp; SiO 2：Eu＆gt; 2+表示的白色磷光体包含作为基质的Al 2 O 3 -SiO 2和作为活性剂的铕（Eu），其中0
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公开(公告)号：KR100428750B1
公开(公告)日：2004-04-27
申请号：KR1020010028432
申请日：2001-05-23
Applicant: 한국화학연구원
IPC: B22F9/30
Abstract: PURPOSE: Provided is a process for producing spherical nickel or nickel oxide fine powder used as base material for a laminated ceramic condenser by a spray thermal decomposition method. CONSTITUTION: The process comprises the steps of: preparing 0.02-4M(based on the nickel) of a precursor solution by dissolving a nickel precursor material selected from nitrate, acetate, chloride, hydrate, and sulfate of nickel and an additive capable of forming a polymer, selected from di- or tri-carboxylic acid or multi-valent alcohol or a mixture thereof in distilled water or alcohol; injecting the precursor solution into a sprayer and generating drops with a diameter of 0.1-100 micrometer; injecting the drops into a reactor with 200-1500deg.C and drying and performing a thermal decomposition under oxidizing, reducing, or inert gas atmosphere to obtain the nickel or nickel oxide fine powder; additionally, heat-treating the nickel or nickel oxide fine powder at 300-1200deg.C for 10 minutes to 5 hours.
Abstract translation: 目的：提供一种通过喷雾热分解法制备用作叠层陶瓷冷凝器基材的球形镍或氧化镍细粉的方法。 构成：该方法包括以下步骤：通过溶解选自镍的硝酸盐，乙酸盐，氯化物，水合物和硫酸盐的镍前体材料以及能够形成一种前体溶液的添加剂来制备前体溶液的0.02-4M（基于镍） 选自二 - 或三 - 羧酸或多价醇或其在蒸馏水或醇中的混合物的聚合物; 将前体溶液注入喷雾器并产生直径为0.1-100微米的液滴; 将液滴注入200-1500℃的反应器中，干燥，在氧化，还原或惰性气体气氛下进行热分解，得到镍或氧化镍细粉; 另外，在300-1200℃下热处理镍或氧化镍细粉10分钟至5小时。
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Patent Agency Ranking
公开(公告)号：KR100419863B1
公开(公告)日：2004-02-25
申请号：KR1020010073270
申请日：2001-11-23
Applicant: 한국화학연구원
IPC: C09K11/63
Abstract: PURPOSE: A process for producing a spherical boron oxide-based red fluorescent body is provided to save manufacturing costs, to lower the temperature at which the fluorescent body is formed, to prevent the degradation of fluorescent body and to improve productivity. CONSTITUTION: The process for producing a spherical boron oxide based red fluorescent body having the formula: (Y,Gd)BO3:Eu comprises the steps of: (a) adding tetraethyl orthosilicate(TEOS), aqueous ammonia and water to ethyl alcohol and mixing them to precipitate hydrated silica, (b) dispersing the filtered hydrated silica into a precursor solution containing yttrium, gadolinium, europium and boron, controlling the pH to the range of 8-11 with a basic solution to coprecipitate them in the form of hydroxides, and (c) drying the hydroxides and heat treating at the temperature ranged from 800 to 1100 deg.C.
Abstract translation: 目的：提供一种生产球形氧化硼基红色荧光体的方法，以节省制造成本，降低形成荧光体的温度，防止荧光体劣化并提高生产率。 （Y，Gd）BO 3：Eu的球形氧化硼基红色荧光体的制备方法包括以下步骤：（a）将原硅酸四乙酯（TEOS），氨水和水加入乙醇中并混合 它们沉淀水合二氧化硅，（b）将过滤后的水合二氧化硅分散到含有钇，钆，铕和硼的前体溶液中，用碱性溶液将pH值控制在8-11的范围内，以氢氧化物的形式使它们共沉淀， 和（c）在800-1100℃的温度下干燥氢氧化物并热处理。
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公开(公告)号：KR100419862B1
公开(公告)日：2004-02-25
申请号：KR1020010075517
申请日：2001-11-30
Applicant: 한국화학연구원
IPC: C09K11/81
Abstract: PURPOSE: A gadolinium phosphate green fluorescent substance and its preparation method are provided, which substance has an excellent emission luminance under the excitation source of 147 nm and an afterglow time of 2-6 ms suitable for a plasma display panel. CONSTITUTION: The gadolinium phosphate green fluorescent substance has a composition represented by Gd(1-x)(P(1-y)Nby)O4:Tbx, wherein 0.001
Abstract translation: 目的：提供一种磷酸钆绿色荧光物质及其制备方法，该物质在147nm的激发源下具有优良的发光亮度，适合于等离子体显示面板的具有2-6ms的余辉时间。 构成：磷酸钆绿色荧光物质具有由Gd（1-x）（P（1-y）N y）O 4：Tb x表示的组成，其中0.001≤x≤0.50,0.005≤y≤0.30 和0.8≤（Gd + Tb）/（P + Nb）≤1.1。 该方法包括在硝酸，HF，蒸馏水和硝酸中分别溶解氧化钆（Gd 2 O 3），氧化铌（Nb 2 O 5），磷酸氢铵（（NH 4）2 HPO 4）和氧化铽（Tb 4 O 7） 前体溶液; 根据上述组成混合前体溶液; 在50-150℃干燥混合物; 其次在400-600℃干燥混合物; 并在1000-1,400℃煅烧该混合物。
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68.发明授权비유기성 고분자 용액을 이용한 분무열분해법에 의한바륨마그네슘알루미네이트계 청색 및 녹색 형광체 분말의제조방법 失效비유기성고분자용액을이용한분무해법에의한바륨마그네슘알루미네이트계청색및녹색체분말의제조방법
公开(公告)号：KR100411176B1
公开(公告)日：2003-12-18
申请号：KR1020010009341
申请日：2001-02-23
Applicant: 한국화학연구원
IPC: C09K11/02
Abstract: PURPOSE: A method for preparing a barium magnesium aluminate-based blue and green fluorescent substance powder by spray pyrolysis using a nonorganic polymer solution and a barium magnesium aluminate-based blue and green fluorescent substance prepared by the method are provided, to obtain completely spherical fluorescent powder by improving the heat stability. CONSTITUTION: The barium magnesium aluminate-based blue and green fluorescent substance is represented by Ba(a-b)MgcAldOx : Mnb, wherein 0.5
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公开(公告)号：KR1020030089947A
公开(公告)日：2003-11-28
申请号：KR1020020027876
申请日：2002-05-20
Applicant: 한국화학연구원
IPC: C09K11/80
CPC classification number: C09K11/7734 , C09K11/646 , H01L33/502 , Y02B20/181
Abstract: PURPOSE: Provided are a white phosphor for exciting long wavelength ultraviolet radiation, which can be applied to a long wavelength ultraviolet emitting diode and an active light emitting type liquid crystal display, and a process for producing the white phosphor. CONSTITUTION: The white phosphor represented by the formula: (1-x)Al2O3·SiO2:Eu¬2+, contains Al2O3-SiO2 as a matrix and europium(Eu) as an active agent, wherein 0
Abstract translation: 目的：提供一种用于激发长波长紫外线辐射的白色荧光体，其可以应用于长波长紫外线发射二极管和主动发光型液晶显示器，以及生产白色荧光体的方法。 构成：由式（1-x）Al 2 O 3·SiO 2：Eu 2+表示的白色荧光体含有作为基体的Al 2 O 3 -SiO 2和作为活性剂的铕（Eu），其中0
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公开(公告)号：KR1020030083842A
公开(公告)日：2003-11-01
申请号：KR1020020022027
申请日：2002-04-22
Applicant: 한국화학연구원
IPC: C09K11/64
CPC classification number: C09K11/7774 , C01P2004/03 , C04B35/6267 , C04B2235/3217 , C09K11/7768 , C09K11/7786 , C09K11/7792 , Y02B20/181
Abstract: PURPOSE: A method for preparing an aluminate-based fluorescent substance powder and an aluminate-based fluorescent substance powder prepared by the method are provided, to improve the luminous efficiency by reducing the surface defect and the distribution of particle size. CONSTITUTION: The method comprises the steps of adding a basic additive to an aqueous solvent containing an aluminum salt to prepare an aluminum polymerization cation solution with a pH of 2.5-5; dissolving at least one metal compound for forming a fluorescent substance main body and at least one metal compound for doping the fluorescent substance main body in the aluminum polymerization cation solution to prepare a fluorescent substance particle precursor solution; injecting the precursor solution into an aerosol generator to form aerosol; drying and thermally decomposing the aerosol; and heating the obtained particle to grow crystal.
Abstract translation: 目的：提供一种通过该方法制备铝酸盐系荧光体粉末和铝酸盐系荧光体粉末的方法，通过减少表面缺陷和粒径分布来提高发光效率。 方案：该方法包括在含有铝盐的水性溶剂中加入碱性添加剂以制备pH为2.5-5的铝聚合阳离子溶液的步骤; 溶解用于形成荧光体主体的至少一种金属化合物和用于在铝聚合阳离子溶液中掺杂荧光物质主体的至少一种金属化合物以制备荧光物质颗粒前体溶液; 将前体溶液注入气溶胶发生器以形成气溶胶; 干燥和热分解气溶胶; 并加热所得颗粒以生长晶体。
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