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    Process for producing a graphite fluoride
    2.
    发明授权
    Process for producing a graphite fluoride 失效
    石墨氟化物的制造方法

    公开(公告)号：US4593132A

    公开(公告)日：1986-06-03

    申请号：US659049

    申请日：1984-12-10

    申请人： Yasushi Kita ,  Hishaji Nakano ,  Shiro Moroi ,  Akira Sakanoue

    发明人： Yasushi Kita ,  Hishaji Nakano ,  Shiro Moroi ,  Akira Sakanoue

    IPC分类号： C01B31/04 ,  C01B31/00 ,  D01F11/12 ,  C07C17/00

    CPC分类号： D01F11/129 ,  C01B31/005

    摘要： A graphite fluoride can be produced safely and in high yield on a commercial production scale by a process comprising reacting a carbon material having an average size of 100.mu. to 10 mm with fluorine. Further, when the fluorination reaction is stopped before completion thereof and the graphite fluoride product is subjected to sifting with a sieve to separate a desired graphite fluoride from the raw carbon material remaining unreacted.

    摘要翻译： 可以通过包括使平均粒度为100〜10mm的碳材料与氟反应的方法以商业生产规模安全地和高收率地生产氟化石墨。 此外，当氟化反应在其完成之前停止并且氟化石墨产物用筛子进行筛分以从未还原的原料碳分离所需的氟化石墨。

    Method of safely preparing graphite fluoride
    3.
    发明授权
    Method of safely preparing graphite fluoride 失效
    安全地制备氟化石墨的方法

    公开(公告)号：US4590316A

    公开(公告)日：1986-05-20

    申请号：US650986

    申请日：1984-09-14

    申请人： Yasushi Kita ,  Hisaji Nakano ,  Shiro Moroi ,  Akira Sakanoue

    发明人： Yasushi Kita ,  Hisaji Nakano ,  Shiro Moroi ,  Akira Sakanoue

    IPC分类号： C01B31/00 ,  C01B31/04 ,  C07C17/00

    CPC分类号： C01B31/005

    摘要： A method of preparing graphite fluoride such as (CF).sub.n or (C.sub.2 F).sub.n by heterogeneous contact reaction between a carbon material such as graphite or petroleum coke and fluorine gas at about 200.degree.-550.degree. C. In the gas phase of the reaction system, the total concentration of higher fluorocarbons having more than four carbon atoms formed by side reactions is controlled so as not to become above 3% by volume by, for example, condensation or catalytic decomposition of at least a portion of the higher fluorocarbons in the gas flowed out of the reaction chamber for recirculation. Such control is highly effective for prevention of rapid and violent decomposition of the graphite fluoride existing in the solid phase of the reaction system induced by sudden decomposition of the higher fluorocarbons in the reaction system to lower fluorocarbons.

    摘要翻译： 一种在约200〜-550℃之间的碳材料如石墨或石油焦炭与氟气之间的非均相接触反应制备（CF）n或（C 2 F）n的氟化石墨的方法。在反应的气相 通过副反应形成的具有多于四个碳原子的高级碳氟化合物的总浓度被控制为通过例如至少一部分较高碳氟化合物的冷凝或催化分解而不会变成高于3体积％ 气体从反应室流出，用于再循环。 这种控制对于防止由反应体系中的较高碳氟化合物突然分解成低碳氟化合物引起的反应体系固相中存在的氟化石墨的快速和剧烈分解是非常有效的。

    Method of forming fluoride glass fiber preform
    6.
    发明授权
    Method of forming fluoride glass fiber preform 失效
    形成氟化玻璃纤维预制棒的方法

    公开(公告)号：US5308371A

    公开(公告)日：1994-05-03

    申请号：US047522

    申请日：1993-04-19

    申请人： Hiromi Kawamoto ,  Yoshinori Kubota ,  Natsuya Nishimura ,  Akira Sakanoue

    发明人： Hiromi Kawamoto ,  Yoshinori Kubota ,  Natsuya Nishimura ,  Akira Sakanoue

    IPC分类号： C03B17/00 ,  C03B37/012 ,  C03B37/014 ,  C03C3/32 ,  G02B6/00 ,  C03B37/023

    CPC分类号： C03B37/01274 ,  C03B37/01268 ,  C03B2201/82

    摘要： A method of forming a fiber glass preform includes the steps of: (a) pouring a cladding glass into a mold; (b) pouring a core glass on a flat horizontal upper surface of the cladding glass so as to form a united glass body having the core glass and the cladding glass under a condition that viscosity of the cladding glass and viscosity of the core glass are adjusted to certain predetermined values respectively so that the core glass is separated from and placed on the cladding glass; (c) cooling the united glass body to solidify the same so that the cladding glass is deformed by contraction thereof so as to produce a depression at a top middle portion thereof and that the core glass is deformed so as to form a projected portion thereof to fill the depression therewith; (d) separating the united glass body into an upper portion and a lower portion comprising the projected portion of the core glass; and (e) extruding the lower portion of the united glass body so as to form the fiber glass preform.

    摘要翻译： 形成玻璃纤维预制棒的方法包括以下步骤：（a）将包层玻璃倒入模具中; （b）在包层玻璃的平坦的水平上表面上浇注芯玻璃，以在包层玻璃的粘度和芯玻璃的粘度被调节的条件下形成具有芯玻璃和包层玻璃的联合玻璃体 分别达到某些预定值，使得芯玻璃与包层玻璃分离并放置在包层玻璃上; （c）冷却联合玻璃体以使其固化，使得包层玻璃通过收缩而变形，从而在其顶部中间部分产生凹陷，并且芯玻璃变形以形成其突出部分 填充凹陷; （d）将玻璃体分离成包括芯玻璃的突出部分的上部和下部; 和（e）挤出组合玻璃体的下部以便形成玻璃纤维预制件。