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公开(公告)号：KR100492521B1
公开(公告)日：2005-06-03
申请号：KR1020020022027
申请日：2002-04-22
Applicant: 한국화학연구원
IPC: C09K11/64
Abstract: 본 발명은 알루미네이트계 형광체 분말의 제조방법에 관한 것으로서, 본 발명의 방법에 따라, 분무 용액 제조시 전구체 용액에 알루미늄의 원료로서 알루미늄 화합물과 염기성 첨가제를 이용하여 알루미늄 중합 양이온 용액을 사용하여 제조된 알루미네이트계 형광체는, 속이 차고 치밀하며 완벽한 구형의 형상을 가지면서 표면 결함이 적어 발광특성이 우수하고 입도 분포가 좋아 평판 디스플레이 및 삼파장 램프용 형광체로서 유용하게 사용될 수 있다.
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公开(公告)号：KR100486959B1
公开(公告)日：2005-05-03
申请号：KR1020030005760
申请日：2003-01-29
Applicant: 한국화학연구원
Abstract: 본 발명은 나노 입자크기를 가진 세리아 분말의 제조방법에 관한 것으로서, 더욱 상세하게는 입자가 나노크기를 갖는 세리아 분말 제조를 위한 전구체 용액에 유기 카복실산, 글리콜 또는 다가 알콜 등의 유기물질들을 적정비율로 첨가하고 분무 열분해법에 의해 액적으로 분무하여 매우 속이 빈 형태의 전구체 분말들을 제조하고, 이를 소성공정 및 밀링 공정에 의한 분쇄를 통해 비응집성의 나노 세리아 분말로 대량 합성하는 방법에 관한 것이다.
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公开(公告)号：KR1020040047154A
公开(公告)日：2004-06-05
申请号：KR1020020075262
申请日：2002-11-29
Applicant: 한국화학연구원
Abstract: PURPOSE: A method for manufacturing spherical Ni metal or nickel oxide fine particle having non-porous densified internal structure by adding colloid solution also during preparation of precursor spray solution in preparation method of Ni metal fine particle using spray pyrolysis is provided. CONSTITUTION: The method comprises the processes of preparing a Ni precursor solution by dissolving a nickel compound selected from nickel nitrate, nickel acetate, nickel chloride, nickel hydrate and nickel sulfate into nano metal colloid solution; generating droplets having diameter of 0.1 to 100 μm by injecting the precursor solution into a droplet sprayer; and drying and pyrolyzing the generated droplets in the reactor temperature range of 500 to 1,500 deg.C, wherein size of metal particles in the nano metal colloid solution is 10 to 500 nm, wherein the nano metal colloid solution is prepared by dispersing a metal nano particle selected from nano silica, nano titania, nano silver, nano yttria, nano nickel and hydrate particle thereof into a water soluble or organic solvent, wherein the nano metal colloid solution is prepared by sol-gel reacting the mixture after preparing a mixture by mixing a metal compound selected from nitrate, acetate, chloride, hydrate and sulfate of a metal selected from metals, transition metals and lanthanide metals of group I to group IV in the periodic table with urea in a mole ratio of 1:1 to 1:1,000, and wherein the nano metal colloid solution is prepared by sol-gel reacting the solution after dissolving and dispersing a metal alkoxide selected from titanium isopropoxide, tetraethoxy orthosilicate (TEOS) and a mixture thereof into a solvent.
Abstract translation: 目的：提供一种通过在使用喷雾热解制备Ni金属微粒的制备方法中，通过在制备前体喷雾溶液期间添加胶体溶液来制造具有无孔致密化内部结构的球形Ni金属或氧化镍微粒的方法。 构成：该方法包括通过将选自硝酸镍，乙酸镍，氯化镍，水合镍和硫酸镍的镍化合物溶解在纳米金属胶体溶液中制备Ni前体溶液的方法; 通过将前体溶液注入到液滴喷雾器中产生直径为0.1至100μm的液滴; 在500〜1500℃的反应器温度范围内干燥和热解生成的液滴，其中纳米金属胶体溶液中金属颗粒的尺寸为10〜500nm，其中纳米金属胶体溶液通过分散金属纳米粒子 选自纳米二氧化硅，纳米二氧化钛，纳米银，纳米氧化钇，纳米镍及其水合物颗粒的颗粒进入水溶性或有机溶剂，其中纳米金属胶体溶液通过混合制备混合物后通过溶胶 - 凝胶反应制备 选自金属，过渡金属和元素周期表中第Ⅳ族至Ⅳ族镧系元素的金属的硝酸盐，乙酸盐，氯化物，水合物和硫酸盐的金属化合物，其摩尔比为1:1至1:1000 并且其中所述纳米金属胶体溶液通过在溶解和分散选自异丙醇钛，原硅酸四乙酯（TEOS）和 将其混合物加入溶剂中。
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公开(公告)号：KR1020040043560A
公开(公告)日：2004-05-24
申请号：KR1020020071875
申请日：2002-11-19
Applicant: 한국화학연구원
IPC: H01L21/02
Abstract: PURPOSE: An apparatus for controlling the dimension of liquid-drop is provided to control liquid-drop of various dimensions from several microns to several tens of microns and maintain the liquid-drop of a uniform dimension not greater than several microns by using the characteristics of a cyclone and a dispersion plate and making them into one system. CONSTITUTION: A drop-containing carrier gas supplying part(1) is located in one surface of a drop dispersing unit(2). A fine drop exhausting unit(4) is formed on the drop dispersing unit. A cyclone unit(3) is coupled to the lower part of the drop dispersing unit. A shaft is formed in the inner center of the drop dispersing unit. A drop dispersing plate(6) and a drop colliding plate(7) are attached to the shaft, wherein the dispersion plate has at least one through hole(11) so as to pass supplied drops, the colliding plate induces the drop to the cyclone unit, and a pipe connected to the exhausting unit is formed inside the center shaft. The cyclone unit is isolated from the drop dispersing unit by a partition wall, located under the drop dispersing unit and connected to the drop dispersing unit by the center shaft. A huge drop outflow unit(9) is installed in the lower part of the cyclone unit.
Abstract translation: 目的：提供一种用于控制液滴尺寸的装置，用于控制从几微米到几十微米的各种尺寸的液滴，并通过使用以下特征来维持均匀尺寸不超过几微米的液滴 旋风分离板和分散板，并将其制成一个系统。 构成：液滴分散单元（2）的一个表面设置有液滴载气供给部（1）。 在液滴分散单元上形成细滴排出单元（4）。 旋风单元（3）联接到液滴分散单元的下部。 在液滴分散单元的内部中心形成有轴。 分散板（6）和液滴碰撞板（7）附接到轴上，其中分散板具有至少一个通孔（11），以便通过供应的液滴，碰撞板引起液滴到旋风分离器 单元，并且连接到排气单元的管道形成在中心轴内。 旋风单元通过位于滴分散单元下方的分隔壁与分散单元隔离并通过中心轴连接到分散单元。 在旋风单元的下部安装了巨大的液滴流出单元（9）。
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公开(公告)号：KR1020040042241A
公开(公告)日：2004-05-20
申请号：KR1020020070443
申请日：2002-11-13
Applicant: 한국화학연구원
IPC: C09K11/02
CPC classification number: C09K11/7734 , C04B35/6267 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C09K11/595 , C09K11/643 , C09K11/7731 , C09K11/778 , H01J2211/42
Abstract: PURPOSE: Provided are spherical phosphor particles obtained by spray pyrolysis method, which has increased surface hydrophobicity, excellent initial emission brightness and improved luminance. CONSTITUTION: The spherical phosphor particles are prepared by the method comprising the step of contacting spherical phosphor particles obtained by spray pyrolysis with alcohol or alcohol-silane mixture to substitute the hydrophilic groups on the surface with alkyl, aryloxy or organosilane groups. Particularly, the phosphor particles are selected from the group consisting of BaMgAl10O17:Eu, (Y,Gd)BO3:Eu, Y2O3:Eu, Gd2O3:Eu, Zn2 SiO4:Mn, YBO3:Tb, and BaAl12O19:Mn.
Abstract translation: 目的：提供通过喷雾热解法获得的球形磷光体颗粒，其具有增加的表面疏水性，优异的初始发光亮度和改善的亮度。 构成：球状荧光体颗粒通过包括以下步骤的方法制备：将通过喷雾热解获得的球形荧光体颗粒与醇或醇 - 硅烷混合物接触，以用烷基，芳氧基或有机硅烷基取代表面上的亲水基团。 特别地，荧光体粒子选自BaMgAl10O17：Eu，（Y，Gd）BO3：Eu，Y2O3：Eu，Gd2O3：Eu，Zn2SiO4：Mn，YBO3：Tb和BaAl12O19：Mn。
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Patent Agency Ranking
公开(公告)号：KR100430755B1
公开(公告)日：2004-05-10
申请号：KR1020010083950
申请日：2001-12-24
Applicant: 한국화학연구원
IPC: C09K11/81
Abstract: PURPOSE: A blue halophosphate-based fluorescent substance for a long wavelength UV, its preparation method and a long wavelength UV emitting device containing the fluorescent substance are provided, which substance has a high absorption peak at a wavelength of 380-420 nm and a high luminance by two times compared with an already-existing blue fluorescent substance. CONSTITUTION: The halophosphate-based fluorescent substance is represented by (Sr(1-x), Mgx)(10-y)(PO4)6Cl2:Euy+2+, wherein 0
Abstract translation: 本发明提供一种用于长波紫外线的蓝色卤代磷酸盐基荧光物质及其制备方法和含有该荧光物质的长波长UV发射装置，该物质在380-420nm波长处具有高吸收峰， 与已有的蓝色荧光物质相比亮度降低了两倍。 构成：基于卤磷酸盐的荧光物质由（Sr（1-x），Mg x）（10-y）（PO 4）6 Cl 2：Eu y + 2 +表示，其中0
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公开(公告)号：KR1020030090983A
公开(公告)日：2003-12-01
申请号：KR1020020028890
申请日：2002-05-24
Applicant: 한국화학연구원
IPC: C09K11/78
CPC classification number: C09K11/7787 , C01P2004/03 , C01P2004/60 , C01P2004/61 , C01P2004/62 , C04B35/6267 , C04B2235/3224 , Y02B20/181
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（真空紫外线）的红色荧光物质及其制备方法和含有该荧光物质的等离子体显示面板或发光灯，以获得在VUV范围内具有高吸收峰的荧光物质和优异的荧光物质 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; 0 <= a <1，0.005 <= b <= 0.2，0.00001 <= c <0.1。 该方法包括以下步骤：在溶剂中将钇化合物，钆化合物，选自Dy，Sm，Nd，Tm，Pr和Sc的稀土金属的金属化合物，柠檬酸和乙二醇溶解到 制备前体溶液; 在300-1,500℃干燥和加热前体溶液，通过气溶胶发生剂喷雾溶液以制备荧光物质粉末; 并将荧光物质粉末在800-1,500℃加热1-5小时。
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公开(公告)号：KR1020030064098A
公开(公告)日：2003-07-31
申请号：KR1020020004541
申请日：2002-01-25
Applicant: 한국화학연구원
IPC: C09K11/83
CPC classification number: C09K11/7769 , C01P2002/70 , C09K11/7776 , C09K11/7777 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: A YRO4-based (R is As, Nb, P, V) red fluorescent substance for a plasma display panel and its preparation method are provided, wherein the red fluorescent substance has an excellent luminance efficiency at VUV and a good color purity and the luminance intensity of red fluorescent substance can be controlled according to the composition of an activator and the composition. CONSTITUTION: The YRO4-based red fluorescent substance is represented by Y1-k(NbmP1-m-nVn)O4:Euk, wherein 0.04
Abstract translation: 目的：提供一种用于等离子体显示面板的YRO4基（R为As，Nb，P，V）红色荧光物质及其制备方法，其中红色荧光物质在VUV下具有优异的发光效率和良好的色纯度， 可以根据活化剂的组成和组成控制红色荧光物质的亮度强度。 构成：YRO4型红色荧光物质由Y1-k（NbmP1-m-nVn）O4：Euk表示，其中0.04
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公开(公告)号：KR1020030045500A
公开(公告)日：2003-06-11
申请号：KR1020010076239
申请日：2001-12-04
Applicant: 한국화학연구원
IPC: C09K11/77
CPC classification number: C09K11/7797 , C01P2002/70 , C01P2004/03 , C01P2004/60 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: A method for preparing a spherical boron oxide-based red fluorescent substance by hydrolysis is provided, to enable a single phase of fluorescent substance at a relatively low temperature to be prepared compared with that of existing solid method, with using a smaller amount of expensive rare earth metals. CONSTITUTION: The method comprises the steps of adding tetraethylorthosilicate, liquid ammonia and water to ethyl alcohol and mixing the mixture to precipitate silicic acid hydrate; dispersing the silicic acid hydrate in a precursor aqueous solution comprising Y, Gd, Eu, B and urea, and hydrolyzing the solution at 70-90 deg.C to adjust pH to be 5-10 for precipitating basic carbonate and hydroxide; and filtering and drying the basic carbonate and hydroxide and heating the dried one at 800-1,100 deg.C to prepare a spherical boron oxide-based red fluorescent substance represented by (Y1-x-yGdx)BO3:Eu, wherein 0
Abstract translation: 目的：提供通过水解制备球形氧化硼基红色荧光物质的方法，与现有固体方法相比，可以制备相对较低温度的荧光物质的单相，使用较少量的 昂贵的稀土金属。 方法：该方法包括将原硅酸四乙酯，液氨和水加入乙醇中，混合混合物沉淀出硅酸水合物; 将硅酸水合物分散在包含Y，Gd，Eu，B和尿素的前体水溶液中，并在70-90℃水解该溶液以将pH调节至5-10以沉淀碱性碳酸盐和氢氧化物; 过滤并干燥碱性碳酸盐和氢氧化物，并在800-1100℃加热干燥的碱，制备由（Y1-x-yGdx）BO3：Eu表示的球形氧化硼基红色荧光物质，其中0≤x <= 1.0和0.01 <= y <= 0.2。
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公开(公告)号：KR1020030044679A
公开(公告)日：2003-06-09
申请号：KR1020010075517
申请日：2001-11-30
Applicant: 한국화학연구원
IPC: C09K11/81
CPC classification number: C09K11/7777 , C04B35/447 , H01J2211/42 , Y02B20/181
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：提供磷酸钆绿色荧光物质及其制备方法，该物质在147nm的激发源和2-6秒的余辉时间下具有优异的发射亮度，适用于等离子体显示面板。 构成：磷酸钆绿色荧光物质具有由Gd（1-x）（P（1-y）Nby）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。 该方法包括分别在硝酸，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; 根据上述组合物混合前体溶液; 在50-150℃干燥混合物; 二次干燥混合物在400-600℃; 并在1,000-1,400℃煅烧混合物。
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