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公开(公告)号：KR100534017B1
公开(公告)日：2005-12-07
申请号：KR1020040009012
申请日：2004-02-11
Applicant: 한국화학연구원
IPC: C09K11/78
Abstract: 본 발명은 신규한 지르콘산염계 형광체 조성물에 관한 것으로서, 더욱 상세하게는 모체로 Ca와 Zr을 함유하는 페로브스카이트 구조의 지르콘산염과 활성제로 희토류 이온으로 구성되어, 상기 희토류 이온이 칼슘 자리를 치환하여 들어가 결정학적으로 상분리가 없는 완전한 고용체를 형성하고 또한 상기 페로브스카이트 구조에 의한 광학적 물성이 변화되는 특성으로 저전압에서 가속전자에 의한 음극선발광 특성을 모두 나타내고, 활성제에 따라 청색, 녹색 및 적색발광이 모두 가능하고, 발광강도가 우수한 신규한 지르콘산염계 형광체 조성물에 관한 것이다.
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公开(公告)号：KR100447936B1
公开(公告)日：2004-09-08
申请号：KR1020010077333
申请日：2001-12-07
Applicant: 한국화학연구원
IPC: C09K11/59
Abstract: PURPOSE: A vacuum UV excited green fluorescent substance and its preparation method are provided, wherein the fluorescent substance shows excellent luminance and dispersibility, reduced aggregation and a uniform spherical shape and is useful for preparing a plasma display panel. CONSTITUTION: The vacuum UV excited green fluorescent substance is represented by the formula: (Zn(1-x)Mnx)O·ySiO2, wherein 0.005
Abstract translation: 目的：提供一种真空紫外激发的绿色荧光物质及其制备方法，其中荧光物质显示出优异的亮度和分散性，减少的聚集和均匀的球形，并且可用于制备等离子体显示面板。 构成：真空紫外激发的绿色荧光物质由下式表示：（Zn（1-x）Mn x）O＆middot; y SiO 2，其中0.005≤x≤0.16和1.6≤y≤2.5。 该方法包括以下步骤：将乙醇与原硅酸四乙酯混合，并向混合物中加入液氨和水以水解它们以沉淀硅酸盐水合物; 将硅酸盐水合物分散在含有锰和锌的前体水溶液中，并向该溶液中加入草酸溶液以将该组分共沉淀为草酸盐; 并干燥共沉淀物并在1000-1100℃的温度下加热。 优选在加入草酸溶液后将溶液的pH调节至7-8; 和/或共沉淀物在加热后在还原条件下在800-900℃的温度下进一步加热。
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公开(公告)号：KR1020030046986A
公开(公告)日：2003-06-18
申请号：KR1020010077333
申请日：2001-12-07
Applicant: 한국화학연구원
IPC: C09K11/59
CPC classification number: C09K11/595 , C01P2002/70 , C01P2004/03 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: A vacuum UV excited green fluorescent substance and its preparation method are provided, wherein the fluorescent substance shows excellent luminance and dispersibility, reduced aggregation and a uniform spherical shape and is useful for preparing a plasma display panel. CONSTITUTION: The vacuum UV excited green fluorescent substance is represented by the formula: (Zn(1-x)Mnx)O·ySiO2, wherein 0.005
Abstract translation: 目的：提供一种真空紫外激发绿色荧光物质及其制备方法，其中荧光物质具有优异的亮度和分散性，减少的聚集和均匀的球形，并且可用于制备等离子体显示面板。 构成：真空UV激发的绿色荧光物质由下式表示：（Zn（1-x）Mn x）O·ySiO 2，其中0.005 <= x <= 0.16且1.6 <= y <= 2.5。 该方法包括以下步骤：将乙醇与原硅酸四乙酯混合，并向混合物中加入液氨和水以水解它们以沉淀硅酸盐水合物; 将硅酸盐水合物分散在含有锰和锌的前体水溶液中，并向溶液中加入草酸溶液以将组分共沉淀成草酸盐; 并干燥共沉淀物并在1000-1100℃的温度下加热。 优选在加入草酸溶液后将溶液的pH调节至7-8; 和/或共沉淀物在加热后的还原条件下在800-900℃的温度下进一步加热。
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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：KR1020020022457A
公开(公告)日：2002-03-27
申请号：KR1020000055240
申请日：2000-09-20
Applicant: 한국화학연구원
IPC: C09K11/63
CPC classification number: C09K11/774 , C01P2002/70 , C01P2004/03 , C04B35/6267 , Y02B20/181
Abstract: PURPOSE: A method for preparing a boron oxide-based red fluorescent substance (Y, Gd)BO3:Eu is provided to lower the reaction temperature and to improve the brightness, wherein the fluorescent substance is useful to a plasma display panel. CONSTITUTION: The method comprises the steps of dropping an aqueous mixture comprising an yttrium compound, a gadolinium compound, an europium compound and boric acid and a basic solution selected from an inorganic base and an organic base into a blank solution to coprecipitate the rare-earth metal with maintaining pH to be 7-9; filtering the solution and drying the filtrate; and heating the dried one at 600-1,100 deg.C in air. Preferably the blank solution is at least one selected from the group consisting of distilled water, methanol, ethanol, 1-propyl alcohol and isopropyl alcohol; the yttrium compound is at least one selected from the group consisting of yttrium nitrate, yttrium chloride and yttrium acetate; the gadolinium compound is at least one selected from the group consisting of gadolinium nitrate, gadolinium chloride and gadolinium acetate; the europium compound is at least one selected from the group consisting of europium nitrate, europium chloride and europium acetate; the inorganic base is at least one selected from the group consisting of NH4OH, NaOH and KOH; and the organic base is at least one selected from the group consisting of diethyl amine, diethanol amine and triethyl amine.
Abstract translation: 目的：提供一种制备氧化硼基红色荧光物质（Y，Gd）BO3：Eu的方法，以降低反应温度并提高亮度，其中荧光物质可用于等离子体显示面板。 构成：该方法包括将包含钇化合物，钆化合物，铕化合物和硼酸的含水混合物和选自无机碱和有机碱的碱性溶液滴加到空白溶液中以共沉淀稀土 保持pH值为7-9的金属; 过滤溶液并干燥滤液; 并在600-1100℃的空气中加热干燥的。 优选空白溶液为选自蒸馏水，甲醇，乙醇，1-丙醇和异丙醇中的至少一种; 钇化合物是选自硝酸钇，氯化钇和乙酸钇中的至少一种。 钆化合物是选自硝酸钆，氯化钆和乙酸钆中的至少一种。 铕化合物是选自硝酸铕，氯化铕和乙酸铕中的至少一种。 无机碱是选自NH 4 OH，NaOH和KOH中的至少一种; 有机碱为选自二乙胺，二乙醇胺，三乙胺中的至少一种。
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Patent Agency Ranking
公开(公告)号：KR1020020022455A
公开(公告)日：2002-03-27
申请号：KR1020000055238
申请日：2000-09-20
Applicant: 한국화학연구원
IPC: C09K11/64
CPC classification number: C09K11/7734 , C01P2004/03 , C09K11/7731 , H01J11/42 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: A method for preparing a spherical aluminate-based blue fluorescent substance BaMgAl10O17:Eu is provided to obtain a fine spherical material without ball-milling at a lower temperature, wherein the substance can be applied to a PDP. CONSTITUTION: The method comprises the steps of adding an aluminium compound, a hydroxypropyl cellulose dispersant with a molecular weight of 100,000 and a urea precipitating agent to a solution mixture of water and alcohol in the ratio of 1:3-7 by volume, and hydrolyzing it to obtain an aluminium precipitate; dispersing the aluminium precipitate into an aqueous mixture solution containing barium, magnesium and europium; adding oxalic acid to the dispersion solution and controlling pH to be 6-9 with a basic solution to precipitate aluminium, barium, magnesium and europium; filtering and drying the precipitate; and calcining the dried one at 1,100-1,400 deg.C in air and heating the calcined one at 1,000-1,200 deg.C under a reductive atmosphere by using 25% H2/N2 gas. Preferably the alcohol is at least one selected from the group consisting of 1-propyl alcohol and isopropyl alcohol.
Abstract translation: 目的：提供一种制备球形铝酸盐系蓝色荧光物质BaMgAl10O17：Eu的方法，以在较低温度下不进行球磨而获得细小球形物质，其中该物质可应用于PDP。 方案：该方法包括以1：3-7体积比的比例将铝化合物，分子量为100,000的羟丙基纤维素分散剂和尿素沉淀剂加入到水和醇的溶液混合物中，并水解 得到铝沉淀物; 将铝沉淀物分散到含有钡，镁和铕的含水混合物溶液中; 向分散液中加入草酸，用碱性溶液控制pH至6-9，使铝，钡，镁和铕沉淀; 过滤并干燥沉淀物; 并将空气中的干燥物料在1100-1400℃下煅烧，并在还原气氛下，使用25％H 2 / N 2气体在1000-1200℃下加热煅烧的。 醇优选为选自1-丙醇和异丙醇中的至少一种。
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公开(公告)号：KR100293330B1
公开(公告)日：2001-06-15
申请号：KR1019990018916
申请日：1999-05-25
Applicant: 한국화학연구원
IPC: C09K11/54
CPC classification number: C09K11/595 , C09K11/646
Abstract: 본발명은오르토규산아연계녹색발광형광체의새로운제조방법에관한것으로서, 더욱상세하게는전자선에의하여여기되어가시영역에서발광스펙트럼을나타내는 ZnSiO: Mn 녹색발광형광체를제조함에있어서, 사에틸오르토규산(TEOS)을에탄올에희석하고염기촉매및 물을첨가하여가수분해시켜서여과한후에, 이여과물을아연및 망간성분을함유한용액과함께분산시키고옥살산또는옥살산염을가하여아연및 망간성분을그의옥살산염으로침전시켜얻은혼합침전물을건조후 공기및 환원분위기중에서열처리하여형광체분말을제조하는일명 '균일침전법'을채용함으로써, 제조된형광체분말의입자크기가균일하고미세하며입자모양이이상적인구상(球狀)으로분말에응집성이적고, 활성제인망간의균일한분포로종래의제조방법에의해제조된형광체에비교하여발광강도가매우우수하므로각종디스플레이산업등에광범위하게이용될수 있는 ZnSiO: Mn 녹색발광형광체의새로운제조방법에관한것이다.
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公开(公告)号：KR100267509B1
公开(公告)日：2000-10-16
申请号：KR1019980035890
申请日：1998-09-01
Applicant: 한국화학연구원
IPC: H01J9/22
Abstract: 본 발명은 형광체의 표면처리방법에 관한 것으로서, 더욱 상세하게는 갈륨산아연계 형광체 분말을 적당한 농도의 무기산, 무기산염, 무기염기 등의 침출처리용액에 침지시켜 초음파 진동처리하여 분산시키고, 이를 방치하여 형광체 분말을 얻는 형광체에 대한 화학적 침출처리 방법을 적용함으로써 형광체 분말 표면의 미반응물과 불순물 및 불감층을 제거하게 되어 형광체의 표면처리전에 비하여 가시영역에서의 발광강도가 대단히 우수하여 전자표시관용으로 매우 적합하고 디스플레이 산업 등에 광범위하게 이용될 수 있는 유용한 효과가 있는 형광체의 표면처리방법에 관한 것이다.
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公开(公告)号：KR100142920B1
公开(公告)日：1998-07-15
申请号：KR1019950016619
申请日：1995-06-21
Applicant: 한국화학연구원
IPC: C01G25/04
Abstract: 본 발명은 고순도 옥시염화지르코늄의 제조방법에 관한 것으로서, 더욱 상세하게는 지르콘 분말과 탄산칼슘을 고온 분해반응시켜 생성된 지르콘산칼슘(CaZrO
3 )을 진한 염산에 녹이고 황산을 첨가한뒤 알칼리용액을 첨가하여 염기성 황산지르코늄(Basic Zirconium Sulfate)를 침전시킨 후, 이 침전물에 암모니아를 사용하여 수산화지르코늄으로 전환하고, 이를 염산에 녹여 제조된 옥시염화지르코늄 수용액을 증발농축시킨 다음 진한 염산을 첨가하고 상온으로 냉각시켜 단 한번의 결정화 과정에 의해 고순도의 옥시 염화지르코늄(ZrOCl
2 ·8H
2 O) 결정을 제조하는 방법에 관한것이다.
옥시염화지르코늄(Zirconium oxychloride)은 매염제, 코팅제 등의 원료로 광범위하게 사용되고 있으며, 특히 고순도 옥시염화지르코늄의 경우 지르코니아 세라믹스의 필수 원료물질로 사용되고 있다. -
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