利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.012 秒)

    Process and apparatus for treating copper chloride etching waste liquor
    2.
    发明公开
    Process and apparatus for treating copper chloride etching waste liquor 失效
    Verfahren und Einrichtung zur Behandlung von Kupferridid enthaltenderÄtzlösung。

    公开(公告)号：EP0574113A1

    公开(公告)日：1993-12-15

    申请号：EP93302202.2

    申请日：1993-03-23

    申请人： HITACHI CHEMICAL COMPANY, LTD. ,  HITACHI CHEMICAL TECHNO-PLANT CORPORATION, LTD. ,  CHEMIRITE, LTD.

    发明人： Uchida, Tatsuya ,  Suemitsu, Toshio ,  Hiratsuka, Tsugihiko ,  Sakai, Kango

    IPC分类号： C01G3/02

    CPC分类号： C01G3/02 ,  C01B7/035 ,  C23F1/46

    摘要： A copper chloride etching waste liquor is treated by a process comprising exposing the etching waste liquor to an atmosphere of 400 to 1,200 °C to generate cupric oxide and hydrogen chloride, separating and collecting the cupric oxide, dissolving the hydrogen chloride into water, and collecting the resulting hydrochloric acid, and an apparatus suitable for the process comprises a concentrating tower for concentrating the etching waste liquor, a roasting furnace for exposing the concentrate to a high-temperature atmosphere to generate a cupric oxide and a gas mixture containing hydrogen chloride, a cyclone, cooling tower and electrostatic precipitator for collecting the cupric oxide and for feeding the remaining gas mixture to the concentrating tower, a hydrochloric acid collecting tower for collecting hydrochloric acid from a gas mixture discharged from the concentrating tower, and a gas cleaning tower for neutralizing the exhaust gas discharged from the hydrochloric acid collecting tower.

    摘要翻译： 氯化铜蚀刻废液通过包括将蚀刻废液暴露于400-1200℃的气氛中以产生氧化铜和氯化氢，分离和收集氧化铜，将氯化氢溶解在水中的方法处理，并收集 所得到的盐酸和适用于该方法的装置包括用于浓缩蚀刻废液的浓缩塔，用于将浓缩物暴露于高温气氛以产生氧化铜和含有氯化氢的气体混合物的焙烧炉， 旋风分离器，冷却塔和静电除尘器，用于收集氧化铜并将剩余的气体混合物供给浓缩塔，用于从从浓缩塔排出的气体混合物中收集盐酸的盐酸收集塔和用于中和的气体清洗塔 废气从盐酸中排出 塔。