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发明公开
CN103638775A 一种含氟氨水蒸汽处理方法 无效 - 驳回

一种含氟氨水蒸汽处理方法
摘要：
本发明公开了一种含氟氨水蒸汽处理方法。所述方法包括一次洗涤单元脱氟、二次洗涤单元脱氨和水蒸汽除雾，所述一次洗涤单元采用逆流喷淋洗涤工艺；所述二次洗涤单元先将洗涤水降温，再采用逆流喷淋洗涤工艺，并在洗涤过程中加硝酸控制pH值。本发明一种含氟氨水蒸汽的处理方法解决了现有技术中洗涤塔液易沸腾而蒸发、不能根据洗涤液pH值即时加酸精确控制以及pH值检测仪电极频繁损坏的问题。
摘要（英）：

The invention discloses a treatment method of water vapor containing fluoride ammonia. The method comprises defluorination of a primary washing unit, deamination of a secondary washing unit, and demisting by water vapor, wherein the primary washing unit adopts a countercurrent spray washing process; the secondary washing unit firstly cools washing water, then adopts the countercurrent spray washing process, and adds nitric acid to control a pH value in a washing process. The treatment method of the water vapor containing fluoride ammonia, disclosed by the invention, solves the problems that scrubbing tower liquid in the prior art easily boils to evaporate, acid can not be timely added for accurately controlling according to the pH value of the washing water, and a pH value detector electrode is frequently damaged.

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