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    구형 활성탄의 제조방법
    51.
    发明公开
    구형 활성탄의 제조방법 有权
    制造球形活性炭的方法

    公开(公告)号：KR1020030093444A

    公开(公告)日：2003-12-11

    申请号：KR1020020031005

    申请日：2002-06-03

    Applicant: 한국화학연구원

    Inventor： 이정민 ,  서정권 ,  진항교 ,  박병기 ,  정윤호 ,  박춘희 ,  박중환 ,  성우식 ,  조용식 ,  최문호

    IPC: C01B31/08

    CPC classification number: C01B32/318 ,  C01P2004/32 ,  C01P2006/12 ,  C01P2006/90

    Abstract: PURPOSE: A method for efficiently manufacturing spherical activated carbon from pitch is provided. CONSTITUTION: In a method for manufacturing spherical activated carbon by globulizing, oxidizing, carbonizing and activating pitch, the method for manufacturing spherical activated carbon is characterized in that the globulization comprises processes of suspending pitch powder having a particle size corresponding to a sieve size of 40 meshes or less into surfactant aqueous solution having a concentration of 0.1 to 1.0 wt.%; and growing the mixture into spherical particles having a particle size corresponding to a sieve size of 25 to 45 meshes as having temperature gradient conditions in which the mixture is cooled to a temperature of 20 to 40 deg.C after maintaining the mixture to a temperature of 75 to 95 deg.C for 10 to 30 min as agitating the mixture to an agitation speed of 200 to 800 rpm, wherein the pitch powder is obtained by adding 30 to 45 wt.% of aromatic hydrocarbon compound to the treated mixture, melting and agitating the mixture and milling the melted and agitated mixture after adding 1 to 10 weight parts of nitro aromatic compound to 100 weight parts of raw material pitch, melting and agitating the mixture and treating the melted and agitated mixture, wherein the grown spherical particles are refined by solvent extraction using an extracting solvent of hexane, wherein the nitro aromatic compound is nitrobenzene, and the aromatic hydrocarbon compound is naphthalene based compound, wherein softening point of the pitch powder is 80 to 95 deg.C, and wherein the surfactant used in growing of the pitch powder particles is polyvinyl alcohol aqueous solution.

    Abstract translation: 目的：提供一种高效地制造球形活性炭的方法。 构成：球形活性炭的球化，氧化，碳化和活化沥青的球形活性炭的制造方法中，球状活性炭的制造方法的特征在于，包括将筛孔尺寸相当于40的粉粒悬浮的方法 网眼或更少的浓度为0.1至1.0重量％的表面活性剂水溶液; 并将混合物生长成具有对应于25至45目的筛孔的粒径的球形颗粒，其温度梯度条件将混合物冷却至20至40℃的温度，将混合物保持在温度 75〜95℃，搅拌10〜30分钟，搅拌速度为200〜800rpm，通过向处理后的混合物中加入30〜45重量％的芳烃化合物，熔融， 在加入1至10重量份的硝基芳族化合物至100重量份原料沥青后，搅拌混合物并研磨熔融和搅拌的混合物，熔融并搅拌混合物并处理熔融和搅拌的混合物，其中生长的球形颗粒被精制 通过使用己烷的萃取溶剂进行溶剂萃取，其中硝基芳族化合物为硝基苯，芳烃化合物为萘系化合物，其中 沥青粉末的凝固点为80〜95℃，其中用于生长沥青粉末颗粒的表面活性剂为聚乙烯醇水溶液。

    활성알루미나성형체의제조방법
    52.
    发明公开
    활성알루미나성형체의제조방법 失效
    制备活性铝模具的方法

    公开(公告)号：KR1020000039561A

    公开(公告)日：2000-07-05

    申请号：KR1019980054925

    申请日：1998-12-14

    Applicant: 한국화학연구원

    Inventor： 이정민 ,  서정권 ,  정순용 ,  진항교 ,  박병기

    IPC: C01F7/44

    CPC classification number: C01F7/30 ,  C04B35/10 ,  C04B35/63 ,  C04B35/64

    Abstract: PURPOSE: A method of preparing active alumina moldings is provided to give high strength, sufficient specific surface area and large pore volume, as well as the deletion of any waste water. CONSTITUTION: A method is directed to the preparation of manufacturing active alumina moldings which comprises degrading rapidly aluminium hydroxide, generating particulate assembly by performing amorphous alumina powders with water as a binder, and hydrating, drying and sintering them, to give the desired moldings. In especially, referring to the flow diagram 1, the method is characterized by comprising the next specific steps. Before the hydrating step, the post-treating step is performed under the condition of temperatures of 5 to 60°C and a relative humidity of 50 to 100% for 30 min to 24 hours. Thereafter, the method is carried out by hydrating them at temperatures of 70 to 100°C for duration of 1 to 5 hours in a same wetting chamber.

    Abstract translation: 目的：提供一种制备活性氧化铝模制品的方法，以提供高强度，足够的比表面积和大孔体积，以及任何废水的删除。 构成：一种制备活性氧化铝模制品的方法，其包括使氢氧化铝迅速降解，通过用水作为粘合剂进行无定形氧化铝粉末，并对其进行水合，干燥和烧结，从而产生所需的模制品。 特别地，参考流程图1，该方法的特征在于包括下一个具体步骤。 在水合步骤之前，后处理步骤在5至60℃和相对湿度为50至100％的条件下进行30分钟至24小时。 此后，该方法通过在相同的润湿室中在70至100℃的温度下将其水合1-5小时来进行。

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