-
公开(公告)号：KR101426345B1
公开(公告)日：2014-08-07
申请号：KR1020070008972
申请日：2007-01-29
Applicant: 삼성전기주식회사
Abstract: 티탄산바륨 분말의 제조방법 및 그 방법에 의하여 제조된 티탄산바륨 분말이 개시된다. 개시된 티탄산바륨 분말의 제조방법은 (a) 몰비(염화바륨/사염화티탄)가 1~1.5인 염화바륨(BaCl
2 ) 수용액 및 사염화티탄(TiCl
4 ) 수용액을 마련하는 단계; (b) 상기 수용액들을 분사하여 농도가 0.2~5.0 mol/l인 옥살산(H
2 C
2 O
4 ) 수용액에 적가함으로써 바륨티타닐옥살레이트[BaTiO(C
2 O
4 )
2 ㆍ4H
2 O] 결정을 생성시키는 단계; (c) 상기 바륨티타닐옥살레이트 결정을 습식분쇄하는 단계; (d) 상기 습식분쇄된 바륨티타닐옥살레이트 결정을 건조시키는 단계; (e) 상기 건조된 바륨티타닐옥살레이트 결정을 1차 열처리하여 티탄산바륨 결정을 생성시키는 단계; 및 (f) 상기 1차 열처리로 생성된 티탄산바륨 결정을 상기 1차 열처리 온도이하의 온도에서 2차 열처리하는 단계;를 포함한다.
따라서, 티탄산바륨 분말의 제조방법 및 그 방법에 의하여 제조된 티탄산바륨 분말은 균일한 입도 분포를 가지면서도 결정성이 향상될 수 있다.-
22.发明公开티탄산 바륨을 포함한 이산화탄소 흡착제, 이를 포함한 이산화탄소 포집 모듈, 및 이를 이용한 이산화탄소 분리 방법 有权包含钛酸钡的二氧化碳吸收剂，包含其的二氧化碳捕获模块以及使用其分离二氧化碳的方法
公开(公告)号：KR1020140082048A
公开(公告)日：2014-07-02
申请号：KR1020120151129
申请日：2012-12-21
CPC classification number: B01D53/04 , B01D53/02 , B01D2253/1124 , B01D2253/25 , B01D2257/504 , B01J20/041 , B01J20/06 , B01J20/28007 , B01J20/28059 , B01J2220/66 , Y02C10/04 , Y02C10/08 , Y02E20/16 , Y02E20/18 , B01D53/62 , B01J6/00 , B01J6/001 , B01J6/002 , B01J6/004
Abstract: Provided are a carbon dioxide adsorbent, a carbon dioxide adsorbent module including the same, and a method for separating carbon dioxide using the same. The carbon dioxide adsorbent includes composite oxide including barium and titanate, wherein the composite oxide has a perovskite crystalline structure and is represented by Formula Ba_xTi_yO_z, wherein the atom ratio of Ba/Ti is 0.95 to 1.7.
Abstract translation: 提供二氧化碳吸附剂，包含该二氧化碳吸附剂的二氧化碳吸附剂组合物和使用其的二氧化碳分离方法。 二氧化碳吸附剂包括复合氧化物，包括钡和钛酸盐，其中复合氧化物具有钙钛矿晶体结构并由式Ba_xTi_yO_z表示，其中Ba / Ti的原子比为0.95至1.7。
-
公开(公告)号：KR1020130017190A
公开(公告)日：2013-02-20
申请号：KR1020110079484
申请日：2011-08-10
Applicant: 삼성전기주식회사
IPC: C01G23/00 , C04B35/468 , C04B41/85 , H01B3/12
Abstract: PURPOSE: A formation method of a coating layer on the surface of barium titanate is provided to uniformly form the metal carbon oxide coating layer on the surface of the barium titanate with high coating rate using ammonium bicarbonate. CONSTITUTION: A formation method of a coating layer on the surface of barium titanate comprises the following steps: producing mixed slurry of barium titanate and metal compounds; and reacting the mixed slurry with ammonium bicarbonate to produce a metal carbon oxide coating layer. The molar ratio of the metal compounds for the barium titanate is 0.1-0.5. The molar ratio of the ammonium bicarbonate for the metal compounds is 1-5. The metal compounds are selected from chloride of alkaline earth metals or transition metal, nitrate, sulphate, organic metal compounds, or their combination. A producing method of the barium titanate comprises a step of forming the coating layer on the surface of the barium titanate, and a step of heat-processing at the temperature lower than 1,000 deg. C.
Abstract translation: 目的：提供钛酸钡表面上的涂层的形成方法，使用碳酸氢铵以高涂布速率在钛酸钡的表面上均匀形成金属碳氧化物涂层。 构成：钛酸钡表面上的涂层的形成方法包括以下步骤：制备钛酸钡和金属化合物的混合浆料; 并将混合的浆料与碳酸氢铵反应以制备金属碳氧化物涂层。 钛酸钡的金属化合物的摩尔比为0.1-0.5。 碳酸氢铵对金属化合物的摩尔比为1-5。 金属化合物选自碱土金属或过渡金属的氯化物，硝酸盐，硫酸盐，有机金属化合物或它们的组合。 钛酸钡的制造方法包括在钛酸钡的表面形成被覆层的工序和在低于1000度的温度下进行热处理的工序。 C。
-
公开(公告)号：KR100435534B1
公开(公告)日：2004-06-10
申请号：KR1020010046170
申请日：2001-07-31
Applicant: 롯데정밀화학 주식회사 , 삼성전기주식회사
IPC: C01G23/00
Abstract: PURPOSE: Provided is a barium titanate(BaTiO3) powder with easy grinding, high sinterability, high reactivity with other materials by applying ultrasonic vibration to conventional oxalate method. CONSTITUTION: The preparation method of barium titanate(BaTiO3) powder is as follows: adding a mixture of Ba- and Ti- solution, having a Ba/Ti molar ratio of 1 : 1-1.1, to an oxalic acid(H2C2O4) solution(20-100deg.C) under ultrasonic vibration at a frequency of 10-50kHz; aging the reactant solution under ultrasonic vibration to prevent growth of precipitates, BaTiO(C2O4)2-4H2O; filtering and washing; thermal decomposing the formed BaTiO(C2O4)2-4H2O(
Abstract translation: 目的：提供一种钛酸钡（BaTiO3）粉末，其具有易于研磨，具有高烧结性，与其他材料通过对常规草酸盐方法施加超声波振动高反应性。 本发明公开了一种钛酸钡（BaTiO3）粉末的制备方法，将Ba / Ti摩尔比为1：1-1.1的Ba-和Ti-溶液的混合物加入到草酸（H2C2O4）溶液 20-100℃），超声振动频率为10-50kHz; 在超声振动下老化反应物溶液以防止沉淀物BaTiO（C 2 O 4）2·4H 2 O的生长; 过滤和洗涤; 在700-1200℃热分解形成的BaTiO（C 2 O 4）2·4H 2 O（≤10微米） 研磨得到尺寸为0.3-0.4微米的BaTiO3粉末。 所制备的BaTiO3可用作多层陶瓷电容器，压电陶瓷，PTC热敏电阻等的原材料。
-
公开(公告)号：KR100434883B1
公开(公告)日：2004-06-07
申请号：KR1020010049048
申请日：2001-08-14
Applicant: 롯데정밀화학 주식회사 , 삼성전기주식회사
IPC: C01G23/00
CPC classification number: H01G4/1227 , C01G23/006 , C01P2006/10 , C01P2006/40 , C04B35/6261 , C04B35/62655 , C04B2235/3208 , C04B2235/3215 , C04B2235/3236 , C04B2235/3244 , C04B2235/444 , C04B2235/449 , C04B2235/5409 , C04B2235/608 , C04B2235/77 , C04B2235/79
Abstract: The present invention relates to a method for preparing barium titanate based powder. More particularly, the present invention provides a method for preparing barium titanate powder comprising the following steps of precipitation of barium titanyl oxalate (BaTiO(C 2 O 4 ) 2 .4H 2 O) with spraying a mixture of an aqueous barium chloride (BaCl 2 .2H 2 O) and titanium tetrachloride (TiCl 4 ) to an aqueous solution of oxalic acid, via a nozzle; wet pulverization by using a beads mill after adding an additive such as an amine; dry; pyrolysis; and re-pulverization.
Abstract translation: 本发明涉及一种制备钛酸钡基粉末的方法。 更具体地说，本发明提供了一种制备钛酸钡粉末的方法，该方法包括以下步骤：将钛酸钡草酸钡（BaTiO（C SUB SUB 2 SUB SUB 4 SUB）SUB SUB） （BaCl 2 2·2H 2 SUB 2 O）和钛（II）的混合物的混合物中，在室温下，将氯化钡水溶液（BaCl 2 2 / 2H 2 SUB 2 / 通过喷嘴将四氯化钛（TiCl SUB 4 / SUB）加入到草酸水溶液中; 在添加胺等添加剂后使用珠磨机进行湿式粉碎， 干; 热解; 并重新粉碎。
-
Patent Agency Ranking
公开(公告)号：KR1020020068792A
公开(公告)日：2002-08-28
申请号：KR1020010009066
申请日：2001-02-22
Applicant: 롯데정밀화학 주식회사 , 삼성전기주식회사
IPC: C01G23/04
CPC classification number: C01G23/006 , C01P2002/34 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C04B35/468
Abstract: PURPOSE: A preparation method of barium titanate powder through the oxalate precipitation process is provided, which is characterized in that an aqueous (Ba,Ti) solution is added to oxalic acid by nozzle spraying unlike conventional dropwise addition. The resultant powder has high purity and homogeneity in the composition and particle size. CONSTITUTION: The preparation method comprises the steps of: spraying an aqueous (Ba,Ti)solution, which is obtained by mixing 0.2-2.0mol/L of BaCl2.2H2O with 0.2-2.0mol/L of TiCl4 in a molar ratio of 1 : 1-1.5, in 0.2-2.0mol/L of oxalic acid(H2C2O4) at high speed by using a flow-back nozzle, which is expressed by the reaction formula: BaCl2 + TiCl4 -->BaTi(C2O4)2.4H2O; aging precipitates, barium titanyl oxalate(BTO), for 1-100hrs.; washing and filtering; grinding obtained BTO crystals and drying; thermal decomposing at 700-1200deg.C to form BaTiO3 powder. Also, BaTiO3 composite powder can be prepared by substituting one or more of Mg, Ca, Sr and Pb for Ba, and one or more of Zr, Hf and Sn for Ti.
Abstract translation: 目的：提供通过草酸盐沉淀方法制备钛酸钡粉末的方法，其特征在于通过不同于常规滴加法的喷嘴喷雾将草酸水溶液（Ba，Ti）加入到草酸中。 所得粉末的组成和粒径均高纯度均匀。 构成：制备方法包括：将0.2-2.0mol / L的BaCl 2·2H 2 O与0.2-2.0mol / L的TiCl 4以摩尔比1混合得到的（Ba，Ti） ：通过使用流动回流喷嘴，通过反应式：BaCl 2 + TiCl 4→BaTi（C 2 O 4）2.4H 2 O表示，在高速的0.2-2.0mol / L草酸（H 2 C 2 O 4）中， 老化沉淀物，草酸氧钛钡（BTO），持续1-100小时。 洗涤和过滤; 研磨得到BTO晶体并干燥; 在700-1200℃热分解形成BaTiO3粉末。 另外，通过将Mg，Ca，Sr和Pb中的一种或多种替代为Ba，以及一种或多种Zr，Hf和Sn作为Ti，可以制备BaTiO3复合粉末。
-
公开(公告)号：KR101792283B1
公开(公告)日：2017-11-01
申请号：KR1020120155531
申请日：2012-12-27
Applicant: 삼성전기주식회사
Abstract: 본발명은미립의바륨지르코늄티타네이트의제조방법및 이에의하여제조된미립의바륨지르코늄티타네이트에관한것이다. 본발명은바륨티타닐옥살레이트와지르코늄전구체를혼한한후 습식밀링하여슬러리를마련하는단계(분산단계), 및슬러리를하소하여 BZT를제조하는단계(하소단계)를포함하고, 분산단계에서, 바륨, 티타늄, 지르코늄의몰비가 1:(1-x):x 이고, x는 0.01~0.08 이되도록바륨티타닐옥살레이트와지르코늄전구체를혼합하는것을특징으로한다. 본발명에의하면입자크기가작고균일하며 2차상이존재하지않는바륨지르코늄티타네이트(BZT) 분말을얻을수 있다.
Abstract translation: 本发明涉及一种生产钛酸钡锆的方法和由此生产的钛酸钡锆钛酸盐。 本发明氧钛钡的方法，包括：一个喇叭草酸和锆前体后，以湿式研磨设浆料（分散步骤）和步骤（煅烧步骤）煅烧所述浆料制造BZT，并且在分散步骤 ，草酸氧钛钡和锆前体混合，使得钡，钛和锆的摩尔比为1：（1-x）：x，并且x为0.01至0.08。 根据本发明，可以获得具有小粒度，均匀性和无二次相的钛酸钡锆（BZT）粉末。
-
公开(公告)号：KR1020170078064A
公开(公告)日：2017-07-07
申请号：KR1020150188191
申请日：2015-12-29
Applicant: 삼성전기주식회사
Abstract: 본개시는유전체조성물및 이를포함하는적층세라믹커패시터에관한것으로, 본개시에따른유전체조성물은모재주성분및 부성분을포함하며, 모재주성분은 ABO(A는 Ba, Ca 및 Sr 중적어도하나이고 B는 Ti, Zr 및 Hf 중적어도하나임)로표시되며, 부성분은상기모재주성분 100 몰에대하여, Dy 및 Tb 중적어도하나를포함하는산화물인 0.5 내지 2.0 몰의제1 부성분을포함하는것을특징으로한다.
Abstract translation: 本发明涉及包括电介质组合物和用途的多层陶瓷电容器，本发明的电介质组合物包含基体材料的主要成分和辅助成分，基体材料的主要成分是ABO（A为Ba，Ca和Sr单甚至普遍和B是Ti ，由至少表示为Zr和Hf普遍之一），子部件，其特征在于它包括第一子成分含有一种甚至相对于所述基体材料的主要成分作为100摩尔，Dy和Tb的普遍0.5〜2.0摩尔的氧化物。
-
公开(公告)号：KR1020170076310A
公开(公告)日：2017-07-04
申请号：KR1020150186420
申请日：2015-12-24
Applicant: 삼성전기주식회사
CPC classification number: H01G4/30 , B32B18/00 , C04B35/4682 , C04B35/6261 , C04B35/62685 , C04B2235/3208 , C04B2235/3215 , C04B2235/3225 , C04B2235/3239 , C04B2235/3248 , C04B2235/3267 , C04B2235/3418 , C04B2235/36 , C04B2235/442 , C04B2235/6025 , C04B2235/783 , C04B2235/785 , C04B2237/346 , C04B2237/68 , C04B2237/704 , H01G4/1209 , H01G4/1227
Abstract: 본발명의일 실시형태는티탄산바륨계모재주성분및 부성분을포함하며, 소결후 미세구조에서 Ca 함량이 2.5 mol% 미만인결정립을제1 결정립, Ca의함량이 4.0 내지 12.0 mol%인결정립을제2 결정립으로규정할때, 소성후 상기제2 결정립의평균크기대비소성후 상기제1 결정립의평균크기의비율이 1.6 내지 2.2를만족하는유전체자기조성물을제공한다.
Abstract translation: 根据权利要求，本发明中，钛酸钡继母技艺组件的实施例，并且包括子组件，所述的摩尔％小于2.5在烧结后的显微组织的晶粒的Ca含量，一个晶粒，钙是4.0的晶粒为2 12.0％（摩尔）的含量 烧制后的第一晶粒的平均尺寸与烧制后的第二晶粒的平均尺寸之比为1.6至2.2。
-
公开(公告)号：KR1020170017285A
公开(公告)日：2017-02-15
申请号：KR1020150110991
申请日：2015-08-06
Applicant: 삼성전기주식회사
IPC: H01B3/12 , C04B35/468 , H01G4/12
Abstract: 본발명의일 실시형태에따르면 BaTiO로표시되는제1 주성분및 BiNaTiO로표시되는제2 주성분을포함하는 (1-z)BaTiO-zBiNaTiO로표시되는모재분말(단, 상기 z는 0.0025≤z≤0.04, a는 -0.025≤z≤0.025)를만족하는유전체자기조성물및 이를포함하는적층세라믹커패시터를제공한다.
-
-
-
-
-
-
-
-
-
Search Results
47
records
(took 0.039 seconds)
