Process for deamination and degasification of filtrated stock generated during alkali making
A technology for filtering mother liquor and deamination, applied in the direction of ammonium halide and other directions, can solve the problems of consuming steam heat source, low production efficiency, large equipment, etc., and achieve the effects of low use cost, high production efficiency and small investment
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[0006] Choose an open plastic reaction tank, and according to the reaction ratio, continuously input the soda filter mother liquor and hydrochloric acid into the tank, mix evenly, and neutralize to pH=5.8~6.5 to complete the acidification reaction NH 4 HCO 3 +HCI?NH 4 CI+H 2 O+CO 2 ↑, (NH 4 ) CO 3 +2HCI?2NH 4 CI+H 2 O+CO 2 ↑, the free ammonia in the mother liquor is instantly transformed into fixed ammonium, and carbon dioxide gas is released at the same time, which is discharged from the open barrel. The chemical properties of the obtained fixed ammonium are particularly stable, and it does not decompose at a temperature below 110°C, which ensures the smooth progress of the thermal production of ammonium chloride.
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