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    • 1. 发明授权
    • Method for the preparation of carbon moldings and activated carbon molding therefrom
    • 用于制备碳成型体和活性炭成型的方法
    • US3917806A
    • 1975-11-04
    • US40116073
    • 1973-09-27
    • KUREHA CHEMICAL IND CO LTD
    • AMAGI YASUONISHIMURA YASUSHIUEHARA YASUO
    • C01B31/00C01B31/14C04B35/52D01F9/145C01B31/02B01J21/18C01B31/10
    • D01F9/145C01B32/00C01B32/384C04B35/52
    • A method for the preparation of a porous carbon molding having a low apparent density, the method comprising the steps of thermally mixing a pitch, which has a softening point of 50* 350*C, a carbon content of 80 - 97 wt%, a hydrogen/carbon ratio of 0.3 - 2.5 and a nitrobenzene-insoluble fraction of below 60 wt%, with at least one aromatic hydrocarbon having a boiling point of 200*C or higher, forming the mixture into a suitable shape, immersing the formed material in a solvent, in which the pitch is hardly soluble but the aromatic hydrocarbon is easily soluble, for extracting the aromatic hydrocarbon from the formed material and obtaining a porous pitch material, oxidizing the porous pitch material at a temperature from room temperature to 400*C by the use of an oxidizing agent to form an infusible porous pitch material, and calcining the infusible porous material in an inert atmosphere at a temperature higher than 600*C to obtain a porous carbon material. The porous carbon material or the infusible porous material may be activated by means of steam vapor or air to produce an activated carbon material.
    • 一种制备具有低表观密度的多孔碳成型体的方法,所述方法包括以下步骤:将具有软化点为50-350℃,碳含量为80-97重量%的沥青热混合, 具有0.3-2.5的氢/碳比和低于60重量%的硝基苯不溶性部分与至少一种沸点为200℃或更高的芳族烃形成混合物形成合适的形状,将形成的材料 在沥青难以溶解但芳族烃容易溶解的溶剂中,为了从形成的材料中提取芳烃并获得多孔沥青材料,在室温至400℃的温度下氧化多孔沥青材料 通过使用氧化剂形成不熔多孔沥青材料,并在惰性气氛中在高于600℃的温度下煅烧不熔多孔材料以获得多孔碳材料。 可以通过蒸气蒸气或空气来活化多孔碳材料或不熔多孔材料以产生活性炭材料。