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Fluorine in phosphoric ammonium exhaust is emitted in combined form

2009-03-29View Original

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Fluorine in phosphoric ammonium exhaust is emitted in combined form
Reply #22009-04-11
During the neutralization of wet phosphoric acid, fluorine exists mainly in the form of ammonium fluosilicate. During the drying process, if the temperature is high, ammonium fluosilicate decomposes due to heat, and fluorine is released in the form of hydrogen fluoride.

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