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公开(公告)号：KR1020000074241A
公开(公告)日：2000-12-15
申请号：KR1019990018024
申请日：1999-05-19
Applicant: 한국과학기술연구원
IPC: F28F21/00
Abstract: PURPOSE: A copper heat sink and method of manufacturing the same is provided to achieve a maximized radiation efficiency, improved performance and prolonged lifespan. CONSTITUTION: A copper heat sink comprises a copper frame(1) having a sponge-like structure having a plurality of air pores, and an aluminum(2) injected into a predetermined thickness beneath the copper frame. The thickness of the aluminum is 1 to 2mm. A method comprises the steps of performing an electroless plating onto a base so as to provide conductivity to the base, performing copper plating to the base and forming a copper film of a predetermined thickness, performing heat-treatment to the base and obtaining a sponge-like structured copper frame, and dipping the copper frame into a molten aluminum so that aluminum is injected to a lower portion of the frame.
Abstract translation: 目的：提供铜散热器及其制造方法，以实现最大的辐射效率，改进的性能和延长的寿命。 构成：铜散热器包括具有多个空气孔的海绵状结构的铜框架（1）和在铜框架下方注入预定厚度的铝（2）。 铝的厚度为1〜2mm。 一种方法包括以下步骤：在基底上进行化学镀以向基底提供导电性，对基底进行镀铜并形成预定厚度的铜膜，对基底进行热处理并获得海绵状， 像结构化的铜框架，并且将铜框架浸入熔融铝中，使得铝被注入到框架的下部。
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公开(公告)号：KR1020020027117A
公开(公告)日：2002-04-13
申请号：KR1020000058963
申请日：2000-10-06
Applicant: 한국과학기술연구원
IPC: C01G25/04
CPC classification number: C01G25/04 , C01P2006/80
Abstract: PURPOSE: A preparation method of high purity zirconium oxychloride from zircon sand is provided to save production cost and prevent environmental pollution by melt decomposition using lime instead of NaOH in a conventional method. CONSTITUTION: The preparation method of zirconium oxychloride(ZrOCl2·8H2O) from zircon sand is as follows: mixing zircon sand, CaCO3 and CaCl2 to be a molar ratio, 3CaCO3/ZrSiO4 of 1.0-1.2, and CaCl2/3CaCO3 of 0.1-0.4, and reacting at 1100-1300deg.C for 1-2hrs. for melt decomposition of zircon sand; leaching sintered zircon sand(solid content:10%) containing a large quantity of CaZrO3 and Ca2SiO4 with 4-6vol.% of HCl at room temperature firstly, and leaching with 15-25vol.% of HCl at 80deg.C secondly to remove silica and trace of element; evaporating and concentrating an aqueous zirconium solution to form zirconium oxychloride crystals.
Abstract translation: 目的：提供锆石砂的高纯度氯氧化锆的制备方法，以常规方法利用石灰代替NaOH，节省生产成本，并通过熔融分解来防止环境污染。 构成：锆石砂的氯氧化锆（ZrOCl 2·8H 2 O）的制备方法如下：将锆石砂，CaCO3和CaCl2混合为摩尔比，3CaCO3 / ZrSiO4为1.0-1.2，CaCl2 / 3CaCO3为0.1-0.4， 并在1100-1300℃反应1-2小时。 用于锆石砂的熔融分解; 首先在室温下浸出含有大量HCl的4-6％（体积）HCl的大量CaZrO3和Ca2SiO4的烧结锆石砂（固含量：10％），然后用15-25％（体积）的HCl在80℃下浸出二次以除去二氧化硅 元素痕迹; 蒸发并浓缩锆水溶液以形成氯氧化锆晶体。
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Patent Agency Ranking
公开(公告)号：KR1019890002856B1
公开(公告)日：1989-08-05
申请号：KR1019860009580
申请日：1986-11-13
Applicant: 한국과학기술연구원
Abstract: The method comprises (i) calcining Jarosite at 200-600 deg.C to leach in water, (ii) neutralizing the leached solution with alk. aq. soln. for pptg. and washing the pptn, (iii) mixing pptn. with active material/additive i.e. active carbon, phosphates, gypsum, clay, zeolite, and (iv) molding and drying to have more than 20% of porosity rate.
Abstract translation: 该方法包括：（i）在200-600℃下煅烧黄铁矿浸出水中，（ii）用alk中和浸提的溶液。 水性。 SOLN。 为pptg。 并洗涤pptn，（iii）混合pptn。 活性物质/添加剂，即活性炭，磷酸盐，石膏，粘土，沸石，和（iv）成型和干燥以具有多于20％的孔隙率。
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公开(公告)号：KR1019890002035B1
公开(公告)日：1989-06-08
申请号：KR1019850000353
申请日：1985-01-22
Applicant: 한국과학기술연구원
Abstract: Extraction of nickel from the low quality laterite ore is effected by leaching electrochemically in the electrolysis bath with a separator between cathod chamber and anode chamber. Nickel is recovered from 0.01-10.0 mol. sulfuric acid solution with blowing the sulfurous acid gas. Also anode chamber consists of 0.01-10.0 mol. sulfuric acid solution including source ore powder under 10 mesh.
Abstract translation: 从低品质红土矿中提取镍是通过在电解槽中用阴极室和阳极室之间的隔膜进行电化学浸取来实现的。 镍从0.01-10.0mol回收。 硫酸溶液吹出亚硫酸气体。 阳极室也由0.01-10.0mol组成。 硫酸溶液，包括10目以下的矿石粉。
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公开(公告)号：KR100321294B1
公开(公告)日：2002-03-18
申请号：KR1019990016772
申请日：1999-05-11
Applicant: 한국과학기술연구원
Abstract: 본발명은자전고온합성법에의한카바이드또는보라이드세라믹분말제조방법으로서, 반응기내부의압력을 5 내지 15 기압의고압으로유지함으로써자전고온합성법(self-propagating high-temperature synthesis, SHS)의문제점인미완결반응문제점을해결하여효율적으로카바이드(carbide) 또는보라이드(boride) 세라믹분말을제조하는방법에관한것이다. 본발명에의하면, 반응중발생하는산소를제거하기위하여사용되는금속(Mg 도는 Al)의휘발을억제하고, 반응중에생기는압력증가를억제할수 있으며, 반응과정중의반응기내의압력차이를작게하여반응이보다균일하게진행되게할 뿐아니라, 완전한반응을가능하게한다.
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公开(公告)号：KR1020010036855A
公开(公告)日：2001-05-07
申请号：KR1019990044042
申请日：1999-10-12
Applicant: 한국과학기술연구원
IPC: F28D1/04
CPC classification number: F28F1/122 , F28D1/0477 , F28F21/06 , F28F21/085
Abstract: PURPOSE: A boiler heat exchanger and method for manufacturing the same is provided to increase an area of heat transfer surface and reduce weight and size of the heat transfer unit, while simplifying process for manufacturing heat exchanger. CONSTITUTION: A boiler heat exchanger comprises a heat exchanger pipe(1), and a porous copper frame(2) having a three-dimensional mesh structure and which is fused to the outer surface of the heat exchanger pipe. The porous ratio of the porous copper frame is 70 to 96%. A method comprises the steps of cutting a polyurethane foam resin with an open cell into a predetermined size and shape; coating the cut polyurethane resin with a copper into a predetermined thickness; and removing, through a thermal decomposition method, the polyurethane resin coated with the copper.
Abstract translation: 目的：提供一种锅炉热交换器及其制造方法，以增加传热面积的面积，并减少传热单元的重量和尺寸，同时简化了热交换器的制造工艺。 构成：锅炉热交换器包括热交换器管（1）和具有三维网状结构并与热交换器管的外表面熔合的多孔铜框架（2）。 多孔铜骨架的多孔比为70〜96％。 一种方法包括将具有开孔的聚氨酯泡沫树脂切割成预定尺寸和形状的步骤; 将切割的聚氨酯树脂用铜涂覆到预定厚度; 并通过热分解方法除去涂覆有铜的聚氨酯树脂。
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公开(公告)号：KR1019960000647B1
公开(公告)日：1996-01-11
申请号：KR1019920022561
申请日：1992-11-27
Applicant: 한국과학기술연구원
IPC: B01D11/04
Abstract: first extracting zirconium solution containing hafnium with Versatic acid 10 of 0.5-2.0M in organic solvent, second extracting the organic component with aqueous solution containing HCl of 0.5-2.0M; obtaining ZrOCl28H2O crystal by vaporizing and concentrating an aqueous solution containing Zr; and hydrolyzing ZrOCl28H2O crystal with amnia, and baking.
Abstract translation: 首先用有机溶剂中的0.5-2.0M的Versatic酸10萃取含有铪的锆溶液，然后用0.5-2.0M的HCl水溶液萃取有机组分; 通过蒸发并浓缩含Zr的水溶液获得ZrOCl28H2O晶体; 并用氨纶水解ZrOCl28H2O晶体，烘烤。
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