公开(公告)号：KR100905796B1

公开(公告)日：2009-07-02

申请号：KR1020070103248

申请日：2007-10-12

Applicant: 한국화학연구원

Inventor： 박용기 ,  최원춘 ,  김희영 ,  김재한

IPC: B01D15/00 ,  C02F1/28 ,  C02F3/10

CPC classification number: Y02W10/15

Abstract: 본 발명은 흡착탑을 이용한 흡착 및 탈착 공정을 연속적으로 수행하여 폐 극성용매 중에 다량으로 함유된 수분을 제거하는 방법에 관한 것으로, 상기 흡착 시 특정의 분자체를 표면개질 또는 이온교환한 흡착제를 사용하여 저온에서 흡착반응을 수행하고, 탈착 시 마이크로파를 조사하여 수분제거율이 높은 순수한 극성용매의 재생 및 단시간의 주기로 흡착제의 효과적인 반복 사용이 가능한 연속적인 흡착 및 탈착공정으로 폐 극성용매를 처리하는 방법에 관한 것이다.
극성용매, 탈착, 흡착, 마이크로파

公开(公告)号：KR1020090037746A

公开(公告)日：2009-04-16

申请号：KR1020070103248

申请日：2007-10-12

Applicant: 한국화학연구원

Inventor： 박용기 ,  최원춘 ,  김희영 ,  김재한

IPC: B01D15/00 ,  C02F1/28 ,  C02F3/10

CPC classification number: Y02W10/15 ,  B01D15/00 ,  C02F1/28 ,  C02F3/10

Abstract: A method for treating a waste polar solvent by a continuous adsorption and a desorption processes is provided to reproduce pure polar solvent in which a moisture elimination rate is high and to use an adsorption agent effectively and successively. A method for treating a waste polar solvent by a continuous adsorption and a desorption processes comprises the following steps of: adsorbing water contained to a waste polar solvent at 45~25 °C by supplying the waste polar solvent in which water contained; detaching the water by irradiating a microwave in an adsorption column while maintaining temperature of the adsorption column in a range of -45~25 °C; and obtaining a surface of a molecular sieve having a specific surface area of 80 to 1200 m^2/g with a hydrophilic group.

Abstract translation: 提供了通过连续吸附和脱附方法处理废极性溶剂的方法，以再现其中除水速率高的纯极性溶剂，并且有效和连续地使用吸附剂。 通过连续吸附和解吸法处理废极性溶剂的方法包括以下步骤：通过提供含有水的废极性溶剂，在45〜25℃下对包含在废极性溶剂中的水进行吸附; 将吸附塔的温度保持在-45〜25℃的范围内，通过在吸附塔中照射微波来分离水; 并用亲水基团得到比表面积为80〜1200m 2 / g的分子筛的表面。

公开(公告)号：KR100887186B1

公开(公告)日：2009-03-10

申请号：KR1020070094735

申请日：2007-09-18

Applicant: 한국화학연구원 ,  주식회사 에코프로

Inventor： 박용기 ,  김희영 ,  최원춘 ,  김재한 ,  박석준 ,  최문호

IPC: H01M4/36 ,  C01G1/00

CPC classification number: H01M4/525 ,  C01G53/00 ,  H01M4/505 ,  H01M10/052 ,  H01M2004/028 ,  Y02E60/122 ,  Y02P70/54

Abstract: An apparatus and a method for preparing a precursor of a cathode active material for a lithium secondary battery are provided to improve the particle density while reducing the particle-size distribution of cathode active material precursor particles, and to reduce waste water containing alkali metal salts as byproducts generated in co-precipitation. An apparatus for preparing a precursor of a cathode active material for a lithium secondary battery from mixed metal salts by using a co-precipitation method, comprises a coprecipitation reactor(100) and particle separator(200). The coprecipitation reactor manufactures the reaction product including the precursor particles by the coprecipitation reaction by mixing reaction materials including the mixed metal salt solution and alkaline solution. The particle separator comprises a separation tank(210) connected through a slurry supplying pipe(220) from the coprecipitation reactor, and a dispersion device for dispersing the cohered particles of the slurry including precursor particles supplied to the separation tank through the slurry supplying pipe. The dispersion device divides the dispersed precursor particles and the minute particles within the separation tank.

Abstract translation: 提供一种用于制备用于锂二次电池的正极活性材料的前体的装置和方法，以改善颗粒密度同时降低正极活性材料前体颗粒的粒度分布，并且将含有碱金属盐的废水减少为 副产物在共沉淀中产生。 通过共沉淀法从混合金属盐制备锂二次电池用正极活性物质的前体的装置包括共沉淀反应器（100）和颗粒分离器（200）。 共沉淀反应器通过混合包括混合金属盐溶液和碱性溶液的反应材料通过共沉淀反应制备包括前体颗粒的反应产物。 颗粒分离器包括通过来自共沉淀反应器的浆料供应管道（220）连接的分离罐（210）和用于通过浆料供给管分散包含供给到分离罐的前体颗粒的浆料的附着颗粒的分散装置。 分散装置将分散的前体颗粒和微小颗粒分隔在分离罐内。