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公开(公告)号：KR1020090055438A
公开(公告)日：2009-06-02
申请号：KR1020070122364
申请日：2007-11-28
Applicant: 한국화학연구원
IPC: B01D69/00
Abstract: A manufacturing method of metallic microfiltration hollow fiber membranes with multiple channels and a manufacturing of microfiltration membranes with uniform pores are provided to perform processes successively and to offer easy usability. A manufacturing method of metallic microfiltration hollow fiber membranes with multiple channels includes a step for manufacturing a metallic hollow fiber filter having the multiple channels by pressurizing a metal solution with a range of 0.1~5 pressure and a step for manufacturing a microfiltration membranes by plasticizing the hollow fiber filter at a temperature of 600~1000 °C. In metal solution, a metal of concentration of 0.1~3 weight% is contained.
Abstract translation: 提供具有多个通道的金属微滤中空纤维膜的制造方法和具有均匀孔的微滤膜的制造，以连续地进行处理并提供易于使用。 具有多个通道的金属微滤中空纤维膜的制造方法包括通过加压0.1〜5的压力的金属溶液制造具有多个通道的金属中空纤维过滤器的步骤，以及通过使 中空纤维过滤器，温度为600〜1000℃。 在金属溶液中含有浓度为0.1〜3重量％的金属。
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公开(公告)号：KR1020110074201A
公开(公告)日：2011-06-30
申请号：KR1020090131104
申请日：2009-12-24
Applicant: 한국화학연구원
CPC classification number: B01D71/12 , B01D67/0006 , B01D2323/12 , B01D2325/20 , C02F1/001
Abstract: PURPOSE: An acetylation methylcellulose, and a manufacturing method of the same, a coating agent for the water treatment separation membrane including the same, and a manufacturing method of separation membrane for water treatment using the same are provided to manufacture the coating agent of the separation membraned which has superior mechanical strength by preventing the phenomenon that the decomposition occurs before melting occurs since having low melting point than natural polymer for the existing separation membrane of separation membrane material, and to have excellent profitability since the simplification of the manufacturing process is possible unlike the existing separation membrane material. CONSTITUTION: The manufacturing method of the acetylation methylcellulose includes the step of manufacturing solution by dissolving methylcellulose in the solvent containing more than one kind selected from the pyridine, and the acetone and their mixture, adding acetic anhydride in the solution and performing acetylation reaction and solidifying in the water. The rate of solvent and methylcellulose is 5 ~ 40 : 95 ~ 60 weight ratio. The amount of the acetic anhydride is 0.5 ~ 3 molar ratio per the methylcellulose unit. The acetylation reaction operates in 10 ~ 90°C. The acetylation methylcellulose has 160 ~ 180°C melting point.
Abstract translation: 目的：提供一种乙酰化甲基纤维素及其制造方法，包括其的水处理分离膜用涂布剂和使用其的水处理用分离膜的制造方法，制造分离用涂布剂 具有优异的机械强度的膜，其具有优异的机械强度，因为与分离膜材料的现有分离膜相比，熔点低于天然聚合物的熔点发生分解，并且由于制造过程的简化而具有优异的利润率，因此可能不同于 现有的分离膜材料。 构成：乙酰化甲基纤维素的制造方法包括通过将甲基纤维素溶解在含有多于一种选自吡啶和丙酮及其混合物的溶剂的溶剂中制备溶液的步骤，在溶液中加入乙酸酐并进行乙酰化反应和固化 在水里。 溶剂和甲基纤维素的比例为5〜40：95〜60重量比。 每个甲基纤维素单元的乙酸酐的量为0.5-3摩尔比。 乙酰化反应在10〜90℃下进行。 乙酰化甲基纤维素的熔点为160〜180℃。
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公开(公告)号：KR100957608B1
公开(公告)日：2010-05-13
申请号：KR1020070122364
申请日：2007-11-28
Applicant: 한국화학연구원
IPC: B01D69/00
Abstract: 본 발명은 2개 이상의 다중 채널을 갖는 금속 중공사 필터에, 특정의 입경을 가진 금속이 일정량 함유된 금속용액을 가압 및 소성하여 상기 중공사 필터의 내부에 금속이 코팅하는 연속적인 공정으로, 종래에 비해 용이하게 기공의 크기가 0.1 ∼ 0.4 ㎛이고 균일한 기공을 갖는 정밀여과막을 제조하는 방법에 관한 것이다.
다중채널, 금속 중공사, 가압 코팅, 정밀여과막
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