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64 条记录 (耗时 0.023 秒)

    Method for continuous preparation of nanometer-sized hydrous zirconia sol using microwave
    41.
    发明申请
    Method for continuous preparation of nanometer-sized hydrous zirconia sol using microwave 审中-公开
    使用微波连续制备纳米级含水氧化锆溶胶的方法

    公开(公告)号：US20050142059A1

    公开(公告)日：2005-06-30

    申请号：US10510265

    申请日：2003-06-26

    申请人： Hee Kim ,  Yong Ki Park ,  Kyung Yoon ,  Hyung Sup Lim

    发明人： Hee Kim ,  Yong Ki Park ,  Kyung Yoon ,  Hyung Sup Lim

    IPC分类号： C01G25/00 ,  C01G25/02 ,  C10G25/00 ,  C10G25/02

    CPC分类号： B82Y30/00 ,  B01J19/126 ,  B01J2219/0877 ,  B01J2219/1227 ,  C01G25/02 ,  C01P2004/64

    摘要： The present invention relates to a method for continuous preparation of a hydrous zirconia sol dispersed by nanometer-sized spherical hydrous zirconia particles having an average diameter(dp) of 1˜250 nm, which method comprises supplying the aqueous solution of a zirconium salt at a concentration of 0.001-0.2 mole/l to a reactor consisting of one or more than two reaction tubes, and then irradiating microwave to the stream of the said aqueous solution in the reactor so that the said solution may be heated in a flow state. Contrary to the method employing a conventional batch-type reactor or semi-continuous stirred-type reactor, the method for continuous preparation of a hydrous zirconia sol according to the present invention can allow various operational parameters to be controlled in a certain range and thus contributes to remarkably improve the quality of a hydrous zirconia sol to be prepared or of the zirconia powder obtainable as a final product.

    摘要翻译： 本发明涉及一种用于连续制备由具有1〜250nm平均直径（nm）的纳米尺寸球状水合氧化锆颗粒分散的含水氧化锆溶胶的方法，该方法包括： 浓度为0.001-0.2摩尔/升的锆盐水溶液加到由一个或多于两个反应管组成的反应器中，然后将微波照射到反应器中的所述水溶液流中，使得所述溶液可以 在流动状态下被加热。 与使用常规间歇式反应器或半连续搅拌式反应器的方法相反，根据本发明的连续制备含水氧化锆溶胶的方法可以使各种操作参数被控制在一定范围内，因此有助于 显着提高待制备的含水氧化锆溶胶的质量或作为最终产物获得的氧化锆粉末的质量。

    Process for preparing a preform with high volume fraction SiC
    43.
    发明授权
    Process for preparing a preform with high volume fraction SiC 失效
    用于制备具有高体积分数SiC的预成型体的方法

    公开(公告)号：US06190604B1

    公开(公告)日：2001-02-20

    申请号：US09300122

    申请日：1999-04-26

    申请人： Soon Hyung Hong ,  Hyo Soo Lee ,  Kyung Yoon Jeon

    发明人： Soon Hyung Hong ,  Hyo Soo Lee ,  Kyung Yoon Jeon

    IPC分类号： B28B302

    CPC分类号： C04B41/009 ,  B22F2998/10 ,  B28B7/46 ,  C04B35/565 ,  C04B41/5155 ,  C22C1/1036 ,  C22C2001/1021 ,  C04B41/4521 ,  C04B41/4523 ,  B22F1/0014 ,  B22F9/04 ,  B22F3/22

    摘要： The present invention relates to a method of preparing a preform with a high volume fraction of SiC particles. A slurry containing SiC particles and binders is ball-milled and pressed in an apparatus to give a primary preform. This primary preform is dried at room temperature and then, at a high temperature. The dried primary preform is subjected to calcination to prepare the preform. In the apparatus, which comprises a bottom die; a top mold with a cavity, placed on the bottom die, an upper punch for pressing a material for the preform in the cavity; and two water-absorbers, one being inserted between the bottom die and the top mold, the other being placed on the top mold, the slurry is introduced in the cavity and pressed by the punch while the water is absorbed in the absorbers or drained through a gap between the bottom die and the top mold, thereby improving the volume fraction of SiC particles. The preform can be used as a fundamental material in producing metal matrix composites having a high thermal conductivity and a low coefficient of thermal expansion, suitable for the application for, e.g., electronic packaging and space-air structures.

    摘要翻译： 本发明涉及一种制备具有高体积分数的SiC颗粒的预成型体的方法。 将含有SiC颗粒和粘合剂的浆料球磨并在设备中压制以得到初级预制件。 该初级预制件在室温下干燥，然后在高温下干燥。 将干燥的初级预制件进行煅烧以制备预制件。 在包括底模的装置中; 放置在底模上的具有空腔的顶模，用于在空腔中挤压预制件的材料的上冲头; 和两个吸水器，一个插入在底模和顶模之间，另一个放置在顶模上，将浆料引入空腔中并由冲头压制，同时水被吸收在吸收器中或排出通过 底模和顶模之间的间隙，从而提高SiC颗粒的体积分数。 该预型件可用作生产具有高热导率和低热膨胀系数的金属基复合材料的基本材料，适用于例如电子封装和空间 - 空气结构。

    RECOVERY AND SYNTHESIS METHOD FOR METALOXIDIC CATHODIC ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY
    47.
    发明申请
    RECOVERY AND SYNTHESIS METHOD FOR METALOXIDIC CATHODIC ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY 有权
    用于锂离子二次电池的金属氧阴极活性材料的回收和合成方法

    公开(公告)号：US20120068107A1

    公开(公告)日：2012-03-22

    申请号：US13015421

    申请日：2011-01-27

    申请人： Kyung Yoon CHUNG ,  Hwa Young Lee ,  Byung-Won Cho

    发明人： Kyung Yoon CHUNG ,  Hwa Young Lee ,  Byung-Won Cho

    IPC分类号： H01M4/88

    CPC分类号： H01M10/54 ,  C01G53/42 ,  C01P2006/40 ,  H01M4/0471 ,  H01M4/049 ,  H01M4/505 ,  H01M4/525 ,  Y02E60/122 ,  Y02W30/84

    摘要： Disclosed are a recovery for a metaloxidic cathodic active material for a lithium ion secondary battery and a synthesis thereof by the recovery method, wherein the recovery method includes (a) dissolving a cathodic active material from a waste lithium ion secondary battery using sulfuric acid solution containing sulfurous acid gas to generate a solution containing metal ions, (b) injecting sodium hydroxide solution and ammonia solution in the solution containing the metal ions to fabricate an electrode active material precursor, and (c) filtrating the active material precursor, followed by drying and grinding, thus to fabricate a solid-state cathodic active material precursor, and the synthesis method is achieved by mixing the electrode active material precursor fabricated according to the recovery method with lithium carbonate or lithium hydroxide, followed by heat treatment, to generate a metaloxidic cathodic active material.

    摘要翻译： 公开了用于锂离子二次电池的金属氧化物阴极活性材料的回收及其回收方法的合成，其中回收方法包括（a）使用硫酸溶液从废锂离子二次电池中溶解阴极活性物质， 产生含有金属离子的溶液，（b）在含有金属离子的溶液中注入氢氧化钠溶液和氨溶液，制作电极活性物质前体，（c）过滤活性物质前体，然后干燥， 研磨，从而制造固态阴极活性物质前体，通过将根据回收方法制备的电极活性物质前体与碳酸锂或氢氧化锂混合，然后进行热处理，从而产生金属氧化物阴极 活性物质

    Purification method of terephthal aldehyde
    48.
    发明授权
    Purification method of terephthal aldehyde 有权
    对苯二醛的纯化方法

    公开(公告)号：US07183442B2

    公开(公告)日：2007-02-27

    申请号：US11294526

    申请日：2005-12-06

    申请人： Hyun-kyung Yoon ,  Won-ho Lee ,  Jong-hyun Chae ,  Dong-il Lee

    发明人： Hyun-kyung Yoon ,  Won-ho Lee ,  Jong-hyun Chae ,  Dong-il Lee

    IPC分类号： C07C45/90

    CPC分类号： C07C45/81 ,  C07C47/544

    摘要： The present invention relates to a method for preparing high-purity terephthalaldehyde from terephthalaldehyde crystal containing impurities by recrystallization using an antisolvent. Low-purity terephthalaldehyde prepared by a conventional method, which contains a small amount of impurities, is dissolved in a solvent and recrystallized using water as antisolvent to obtain high-purity terephthalaldehyde. The invention is significantly advantageous in using water only as antisolvent. Also, the purification process takes short time and is economical and environment-friendly.

    摘要翻译： 本发明涉及通过使用反溶剂重结晶含有杂质的对苯二甲醛晶体制备高纯度对苯二甲醛的方法。 将含有少量杂质的常规方法制备的低纯度对苯二甲醛溶解在溶剂中并用水作为反溶剂重结晶，得到高纯度对苯二醛。 本发明在仅使用水作为抗溶剂方面是显着的有利的。 此外，净化过程花费时间短，经济环保。

    Catalyst for partial oxidation of methylbenzenes and method for producing aromatic aldehydes using the same
    49.
    发明申请
    Catalyst for partial oxidation of methylbenzenes and method for producing aromatic aldehydes using the same 审中-公开
    用于甲苯部分氧化的催化剂及使用其制备芳族醛的方法

    公开(公告)号：US20060094906A1

    公开(公告)日：2006-05-04

    申请号：US11254765

    申请日：2005-10-21

    申请人： Won-ho Lee ,  Dong-il Lee ,  Jong-hyun Chae ,  Hyun-kyung Yoon

    发明人： Won-ho Lee ,  Dong-il Lee ,  Jong-hyun Chae ,  Hyun-kyung Yoon

    IPC分类号： C07C45/36

    CPC分类号： C07C45/36 ,  C07C47/544 ,  C07C47/542

    摘要： Provided is a catalyst for partial oxidation of methylbenzenes comprising the compound represented by the following formula 1 and, optionally, a fire-resistant inorganic support: WOx  (1) where W stands for a tungsten atom, O stands for an oxygen atom and x is a number determined by the oxidation state of W. Also provided is a method for producing aromatic aldehydes from partial oxidation of methylbenzenes in gas phase using molecular oxygen using the afore-mentioned catalyst. The catalyst of the present invention can be prepared easily compared with conventional multi-component oxide catalysts. And, aromatic aldehydes can be produced from methylbenzenes with high selectivity and yield.

    摘要翻译： 本发明提供用于部分氧化甲基苯的催化剂，其包含由下式1表示的化合物和任选的耐火无机载体：<？in-line-formula description =“In-line Formulas”end =“lead”？ 其中W表示钨原子，O表示氧原子，并且表示式 x是通过W的氧化态确定的数。还提供了使用上述催化剂使用分子氧在气相中甲基苯的部分氧化生产芳族醛的方法。 与常规的多组分氧化物催化剂相比，可以容易地制备本发明的催化剂。 而且，芳族醛可以从甲基苯以高选择性和高产率生产。