-
-
-
公开(公告)号：KR1020000018338A
公开(公告)日：2000-04-06
申请号：KR1019980035890
申请日：1998-09-01
Applicant: 한국화학연구원
IPC: H01J9/22
Abstract: PURPOSE: A method for processing fluorescence surface is provided to improve a luminous strength and utilize widely in display industry. CONSTITUTION: A method for processing a fluorescence surface comprises the steps of: precipitating a ZnGa2O4 system fluorescence powder into a leaching treatment solution composed of an inorganic acid, an inorganic acid salt and an inorganic base; performing a vibration processing about the resulting solution by supersonic wave and then dispersing the solution; and leaving the solution and performing a leaching treatment. The leaching treatment solution is the inorganic acid selected from the group consisting of a hydrochloric acid, a nitric acid and a sulfuric acid, the inorganic acid salt selected from the group consisting of an ammonium salt, a sodium salt and a potassium salt, or the inorganic base selected from the group consisting of an ammonia water, a sodium hydroxide and a potassium hydroxide. Thereby, a luminous strength is improved resulting in utilization widely in display industry.
Abstract translation: 目的：提供一种处理荧光表面的方法，以提高发光强度，并在显示屏行业得到广泛应用。 构成：用于处理荧光表面的方法包括以下步骤：将ZnGa 2 O 4系荧光粉末沉淀到由无机酸，无机酸盐和无机碱组成的浸出处理溶液中; 通过超声波对所得溶液进行振动处理，然后分散溶液; 并离开溶液并进行浸出处理。 浸出处理溶液是选自盐酸，硝酸和硫酸的无机酸，选自铵盐，钠盐和钾盐的无机酸盐，或者 无机碱选自氨水，氢氧化钠和氢氧化钾。 因此，显示工业中的发光强度得到提高，从而得到广泛的应用。
-
公开(公告)号：KR100142921B1
公开(公告)日：1998-07-15
申请号：KR1019950016618
申请日：1995-06-21
Applicant: 한국화학연구원
IPC: C01G25/04
Abstract: 본 발명은 고순도 침상형 옥시염화지르코늄의 제조방법에 관한 것으로서, 더욱 상세하게는 지르콘산칼슘(CaZrO
3 )분말을 진한염산에 녹인 용액을 증발 농축시키고 이를 적정염산 농도하에 냉각시켜 단 한번의 결정화 과정에 의해 고순도의 침상형 옥시염화지르코늄(ZrOCl
2 . 8H
2 O)결정을 제조하는 방법에 관한 것이다.
옥시염화지르코늄(Zirconyl chloride)은 섬유처리제, 도료건조제 등의 원료로 사용됨은 물론, 촉매 첨가제 등으로서 광범위하게 이용되고 있다. 특히 고순도의 옥시염화지르코늄의 경우 그것을 직접 열분해 하거나 공침법 또는 가수분해법 등에 의해 고순도의 지르코니아(ZrO
2 )를 제조하는데 사용되는 지르코니아 세라믹스의 필수 원료물질이다.-
-
Patent Agency Ranking
公开(公告)号：KR1019950005297B1
公开(公告)日：1995-05-23
申请号：KR1019920021910
申请日：1992-11-20
Applicant: 한국화학연구원
IPC: B22F9/00
Abstract: adding an organic solvent to the stainless steel scrap generated in surface grinding process of the stainless steel; dissolving the degreased scrap in strong acid and filtering it to add alkali; granulating the filtered scrap in polymeric granulating agent and sieving it; and reducing the sieved stainless steel powder at 900-1200 deg.C for 1-3 hrs. under H2 gas atmosphere.
Abstract translation: 在不锈钢的表面研磨过程中产生的不锈钢废料中加入有机溶剂; 将脱脂废料溶解在强酸中并过滤以加入碱; 将过滤的废料在聚合物制粒剂中造粒并筛分; 并将筛分的不锈钢粉末在900-1200℃下还原1-3小时。 在H2气氛下。
-
公开(公告)号：KR1019920004710B1
公开(公告)日：1992-06-15
申请号：KR1019880003225
申请日：1988-03-25
Applicant: 한국화학연구원
IPC: C01G25/02
Abstract: The high purity zirconia is produced by mixing unpulverizing zircon with calcium carbonate at 1:3 mole ratio, adding 2 wt.% dihydrocalcium chloride to the mixture, moulding, decomposition-reacting it at about 1350 deg.C, crushing, producing calcium zirconate in hydrochloric acid solution, resulutioning the rpoduct in hydrochloric acid solution to remove the insoluble material, adding sulfuric acid to obtain alkali zirconium sulfate, filtering and washing the precipitate of zirconium sulfate, and calcinating it at 800 deg.C or more. The yield rate of zirconia is about 97 %.
Abstract translation: 高纯度氧化锆是通过将未熔化的锆石与碳酸钙以1:3的摩尔比混合而制得的，向混合物中加入2重量％的二氯氯化钙，成型，在约1350℃下分解反应，粉碎，产生锆酸钙 盐酸溶液中，在盐酸溶液中稀释溶液，除去不溶物，加入硫酸得到碱式硫酸锆，过滤并洗涤硫酸锆沉淀物，并在800℃以上煅烧。 氧化锆的产率约为97％。
-
公开(公告)号：KR1019900007079B1
公开(公告)日：1990-09-28
申请号：KR1019880009423
申请日：1988-07-27
Applicant: 한국화학연구원
IPC: C04B38/02
Abstract: The waterproof gypsum-foam body is manufactured by mixing burnt gypsum with 0.5-10 wt.% waterproofing agent and 0.5-10 wt.% calcium hydroxide to the dry powdered gypsum, mixing the mixt. with the foam made of water and foaming-agent, pouring it in a mould, drying at room temp., and demoulding. The foaming agent is polyvinyl alcohol, surfactant or their admixture and the waterproofing agent is the dry mixture powder of aqueous silicon resin and burnt gypsum.
Abstract translation: 通过将烧石膏与0.5-10重量％的防水剂和0.5-10重量％的氢氧化钙混合到干粉状石膏中，混合混合物制造防水石膏泡沫体。 用水和发泡剂制成泡沫，将其倒入模具中，室温干燥，脱模。 发泡剂是聚乙烯醇，表面活性剂或其混合物，防水剂是硅树脂水和烧石膏的干混合粉末。
-
公开(公告)号：KR1019900000756B1
公开(公告)日：1990-02-15
申请号：KR1019880001441
申请日：1988-02-13
Applicant: 한국화학연구원
IPC: C04B38/00
Abstract: A waterproof foamed gypsum is produced by mxing lime slurry, accelator and polyvinyl alcohol foams, and slip casting. The line slurry comprises 100 wt.% burnt plaster, 0.5 wt.% aq. silicon resin, 10 wt.% calcium hydroxide and a little retarder. The producted gypsum has a good waterproofing, fireproofing, sound proofing and insulating property.
Abstract translation: 通过生产石灰浆，压缩机和聚乙烯醇泡沫以及滑移铸造生产防水泡沫石膏。 线浆料包括100重量％的烧制石膏，0.5重量％ 硅树脂，10重量％氢氧化钙和一点缓凝剂。 产品石膏具有良好的防水，防火，隔音和隔热性能。
-
-
-
-
-
-
-
-
-
Search Results
34
records
(took 0.019 seconds)
