Process of conductive carbon black for use in depolarization masses in
dry batteries
    1.
    发明授权
    Process of conductive carbon black for use in depolarization masses in dry batteries 失效
    用于干电池去极化质量的导电炭黑的工艺

    公开(公告)号:US4061719A

    公开(公告)日:1977-12-06

    申请号:US674575

    申请日:1976-04-07

    摘要: Conductive carbon black for use in depolarization masses in dry batteries is produced. To this end, an aqueous suspension of carbon black having an AS-number higher than 15 and having been obtained by subjecting hydrocarbons, which are liquid at room temperature, to thermal conversion at 1200.degree.-2000.degree. C, under 1-80 atmospheres, and in the presence of oxygen or oxygen-containing gas and, if desired, steam, and water-scrubbing the resulting carbon black-containing reaction gas, is intimately mixed at 5.degree.-120.degree. C, under 1-20 atmospheres, in liquid phase and for 1-20 minutes with 0.5-10 g, per gram of carbon black, of vaporizable aliphatic or cycloaliphatic hydrocarbons, the resulting carbon black is separated from the liquid phase, heated and thereby freed from hydrocarbons and water, and the temperature is finally increased for 2-30 minutes to 1100.degree.-2200.degree. C.

    摘要翻译: 制造用于干电池中去极化团块的导电炭黑。 为此,在1-80大气压下,通过使在室温下液体的烃在1200〜2000℃下热转化得到的AS值高于15的炭黑的水性悬浮液, 在氧气或含氧气体的存在下,如果需要,蒸汽和水洗涤所得含炭黑反应气体,在5°-120℃,在1-20个大气压下,在液体中充分混合 相和1-20分钟,每克炭黑为0.5-10克,可汽化的脂族或脂环族烃,所得的炭黑与液相分离,加热,从而从碳氢化合物和水中除去,温度为 最后增加2-30分钟至1100°-2200℃

    Process for producing ammonium polyphosphate
    2.
    发明授权
    Process for producing ammonium polyphosphate 失效
    生产聚磷酸铵的方法

    公开(公告)号:US5165904A

    公开(公告)日:1992-11-24

    申请号:US766422

    申请日:1991-09-26

    IPC分类号: C01B25/40

    CPC分类号: C01B25/405

    摘要: For producing substantially water-insoluble, chain-type ammonium polyphosphate, equimolar quantities of diammonium phosphate and phosphorus pentoxide are reacted at temperatures from 170.degree. to 350.degree. C. in a zone, which effects continuous mixing, kneading and comminution, in the presence of a stream of ammonia gas. In this process, the water is separated from the ammonia gas which leaves the zone and contains water vapor, and the dried ammonia gas is caused to flow again through the zone.A plant for producing substantially water-insoluble, chain-type ammonium polyphosphate can comprise a reactor (1) into which an ammonia feed pipe (8) and pipes for feeding phosphorus pentoxide (6) and diammonium phosphate (7) lead and from which an ammonium polyphosphate discharge pipe (9) and an exit gas pipe (10) start. The exit gas pipe (10) leads into a condenser (13) which is flow-connected via a pump (14) to a heat exchanger (15). An exit gas line (18) which leads into the ammonia feed pipe (8) starts from the heat exchanger (15).

    摘要翻译: 为了生产基本上不溶于水的链式多磷酸铵,等摩尔量的磷酸二铵和五氧化二磷在170℃至350℃的温度下在一个区域内反应,在一个区域内进行连续混合,捏合和粉碎,在 一股氨气流。 在此过程中,水与离开该区域的氨气分离,并含有水蒸汽,并使干燥的氨气再次流过该区域。 用于生产基本上不溶于水的链式多磷酸铵的设备可以包括反应器(1),其中氨进料管(8)和用于供给五氧化二磷(6)和磷酸二铵(7)的管的管 多磷酸铵排出管(9)和排气管(10)开始。 出口气体管道(10)进入冷凝器(13),冷凝器(13)经由泵(14)流动连接到热交换器(15)。 导入氨供给管(8)的出口气体管线(18)从热交换器(15)开始。