사이클로헥실아세테이트의 제조방법
    12.
    发明公开
    사이클로헥실아세테이트의 제조방법 失效
    生产乙酸环己酯的方法

    公开(公告)号:KR1019960037625A

    公开(公告)日:1996-11-19

    申请号:KR1019950009575

    申请日:1995-04-24

    Abstract: 본 발명은 사이클로헥센과 아세트산을 반응시켜 사이클로헥실아세테이트를 제조하는 방법에 있어서, 하기 일반식(Ⅰ)의 헤테로폴리산 금속이온 염을 고체산 촉매로 사용하여 사이클로헥실아세테이트의 생산성을 향상시키는 방법에 관한 것으로, 상기 산촉매는 대상 반응계에서 활성이 장기간 유지되며, 반응물에 대한 용해도가 낮고, 활성이 감소하였을 때 쉽게 재생시킬 수 있다.
    A
    x H
    nx SM
    12 O
    4 0bH
    2 O (Ⅰ)
    상기 식에서, A는 K 또는 Cs이고, x는 0.1 내지 3 또는 4이고, n은 3 또는 4이고, S는 P 또는 Si이고, M은 Mo 또는 W, 또는 이들의 조합이며, b는 0 내지 20이다.

    중공―반구형 나노입자 및 이의 제조방법
    13.
    发明授权
    중공―반구형 나노입자 및 이의 제조방법 有权
    具有中性HEMISPHERE的纳米颗粒及其制备方法

    公开(公告)号:KR100814709B1

    公开(公告)日:2008-03-18

    申请号:KR1020060092485

    申请日:2006-09-22

    Abstract: A group of nano particles consisting of hemisphere nano particles having porous shell and a preparation method thereof are provided to obtain nano particles having relatively high surface area/volume ratio for various industrial applications. A hollow hemisphere carbon nano particle comprises 70-98% of carbon and 2-30% of oxide. The carbon nano particle has diameter of 100nm-100mum and specific surface area of 100-2,000m^2/g. The carbon nano particle comprises shell having thickness of 10-40mum, and the carbon particles form honeycomb shape or plate shape. A preparation method of the carbon nano particle comprises steps of: preparing slurry by mixing oxidant aqueous solution with hollow-sphere carbon particles; and carrying out oxidizing reaction for the slurry at 40-80deg.C for 5-20 hours. The oxidant is selected from peroxide, inorganic acid and mixture thereof and it is used in the amount of 1.0-5,000 parts by weight with respect to 1 part by weight of the hollow-sphere carbon particle. A template consists of the prepared hollow-hemisphere nano particles. A metal oxide nano particle is prepared by a process comprising steps of: filling the prepared hollow-hemisphere carbon nano particle with metal oxide precursor solution; and calcining the nano particles at 600-700deg.C. A biologically active hollow-hemisphere derivative is prepared by a process comprising steps of: mixing the prepared hollow-hemisphere carbon nano particle with biological active material selected from silver, triclosan, 1-docosanol, 4-chloro-3,5-dimethyl phenol and alkylamine; and filtering the solid and drying the product. Optionally, the dried product is heated at 400-500deg.C in an inert atmosphere. The biological active material is in the amount of 0.1-50% by weight with respect to the hollow-hemisphere carbon nano particle. Further, the peroxide is one or a mixture thereof selected from H2O2, S2O8^2-, MnO4^-, Cr2O7^2-, CrO3, OsO4 and organic peroxide.

    Abstract translation: 提供一组由具有多孔壳的半球纳米颗粒组成的纳米颗粒及其制备方法,以获得用于各种工业应用的具有相对高的表面积/体积比的纳米颗粒。 中空半球碳纳米颗粒包含70-98%的碳和2-30%的氧化物。 碳纳米颗粒的直径为100nm-100μm,比表面积为100-2,000m ^ 2 / g。 碳纳米颗粒包括厚度为10-40μm的壳,碳颗粒形成蜂窝状或板状。 碳纳米颗粒的制备方法包括以下步骤:通过将氧化剂水溶液与中空球碳颗粒混合来制备浆料; 并在40-80℃下对浆料进行氧化反应5-20小时。 氧化剂选自过氧化物,无机酸及其混合物,相对于1重量份的中空球碳颗粒,其用量为1.0-5,000重量份。 模板由制备的中空半球纳米颗粒组成。 通过包括以下步骤的方法制备金属氧化物纳米颗粒:用金属氧化物前体溶液填充制备的中空半球碳纳米颗粒; 并在600-700℃下煅烧纳米颗粒。 制备生物活性中空半球衍生物的方法包括以下步骤:将制备的中空半球碳纳米颗粒与选自银,三氯生,1-二十二烷醇,4-氯-3,5-二甲基苯酚和 烷基胺; 并过滤固体并干燥产品。 任选地,将干燥的产物在惰性气氛中加热至400-500℃。 相对于中空半球碳纳米颗粒,生物活性物质的量为0.1-50重量%。 此外,过氧化物是选自H 2 O 2,SiO 2 2-,MnO 4 - ,Cr 2 O 7 2-,CrO 3,OsO 4和有机过氧化物的一种或其混合物。

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