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    • 2. 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。
    • 3. 发明授权
    • Method for the production of activated carbon spheres
    • 生产活性炭球的方法
    • US3909449A
    • 1975-09-30
    • US46360274
    • 1974-04-24
    • KUREHA CHEMICAL IND CO LTD
    • NAGAI HIROSIKATORI KUNIHIKOSHIIKI ZENYAAMAGI YASUO
    • C01B32/336B01D53/02B01J20/20B01J21/18B01J35/08B01J37/00C01B32/384B01D15/00F01N3/00
    • B01J21/18B01D53/02B01J35/08B01J37/0018C01B32/384
    • Spheres of activated carbon are obtained by melting and mixing 100 parts by weight of pitch with 10 to 50 parts by weight of an aromatic solvent compatible with said pitch and 0.01 to 1 part by weight of a metal compound, molding the resultant molten mixture to form a plurality of spheres, immersing the formed spheres in an organic solvent which is compatible with said aromatic solvent and destitute of affinity for said pitch to extract said aromatic solvent from said spheres, infusibilizing the resultant porous pitch spheres having micro-pores and thereafter activating the porous pitch spheres in an atmosphere of ammonia gas at the temperature of 550 to 1000*C. The activated carbon spheres thus produced are particularly useful as activated carbon for the desulfurization of a sulfurous acid gas-containing combustion exhaust gas and for treatment of waste liquor from a sulfite pulp process.
    • 通过将100重量份沥青与10至50重量份与所述沥青相容的芳族溶剂和0.01至1重量份的金属化合物熔融并混合获得活性炭球,将所得熔融混合物成型 多个球体,将形成的球体浸入与所述芳族溶剂相容的有机溶剂中,并且不利于所述沥青从所述球体萃取所述芳族溶剂,使所得的具有微孔的多孔沥青球熔融,然后激活 多孔沥青球体在氨气气氛中的温度为550〜1000℃。由此制得的活性炭球特别适用于含亚硫酸气体燃烧废气脱硫和废液处理的活性炭 来自亚硫酸盐纸浆工艺。