Comprehensive treatment method of tail gas in mercury chloride production process
A production process and comprehensive treatment technology, applied in chemical instruments and methods, separation methods, hypochlorous acid, etc., can solve problems such as environmental hazards, and achieve the effects of reducing pollution, reducing mercury chloride content, and increasing economic benefits
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Embodiment 1
[0028] During the production of mercuric chloride, 7.2×10 7 m 3 Exhaust gas, in which the mercury chloride content is 0.00986g / m3 3 , the chlorine content is 0.83g / m 3 , the tail gas was passed into the sedimentation buffer tank, and 709.29kg of mercuric chloride was recovered after natural sedimentation. At this time, the content of mercuric chloride in the tail gas was 9.9×10 -6 g / m 3 Then the tail gas after the sedimentation is passed into the hydrochloric acid absorption tower to absorb the remaining mercuric chloride in the tail gas, and then the hydrochloric acid solution that is dissolved with mercuric chloride is pumped into the catalyst soaking tank of the mercuric chloride catalyst workshop, as the dissolving mother liquor of the catalyzer Recycling; the tail gas absorbed by hydrochloric acid is passed into the acid mist collection tower, and the hydrochloric acid acid mist mixed in the tail gas is collected to form acid droplets and then flow into the absorption ...
Embodiment 2
[0030] During the production of mercuric chloride, 2.592×10 7 m 3 Exhaust gas, in which mercury chloride content is 1×10 -5 g / m 3 , the chlorine content is 0.05g / m 3 , the tail gas was passed into the sedimentation buffer tank, and 259kg of mercuric chloride was recovered after natural sedimentation. At this time, the content of mercuric chloride in the tail gas was 7.716×10 -6 g / m 3 Then the tail gas after the sedimentation is passed into the hydrochloric acid absorption tower to absorb the remaining mercuric chloride in the tail gas, and then the hydrochloric acid solution that is dissolved with mercuric chloride is pumped into the catalyst soaking tank of the mercuric chloride catalyst workshop, as the dissolving mother liquor of the catalyzer Recycling; the tail gas absorbed by hydrochloric acid is passed into the acid mist collection tower, and the hydrochloric acid acid mist mixed in the tail gas is collected to form acid droplets and then flow into the absorption to...
Embodiment 3
[0032] During the production of mercuric chloride, 5.9×10 7 m 3 Exhaust gas, in which the mercury chloride content is 0.00486g / m3 3 , the chlorine content is 0.53g / m 3 , the tail gas was passed into the sedimentation buffer tank, and 285.3063kg of mercuric chloride was recovered after natural sedimentation. At this time, the content of mercuric chloride in the tail gas was 2.43×10-6 g / m 3 Then the tail gas after the sedimentation is passed into the hydrochloric acid absorption tower to absorb the remaining mercuric chloride in the tail gas, and then the hydrochloric acid solution that is dissolved with mercuric chloride is pumped into the catalyst soaking tank of the mercuric chloride catalyst workshop, as the dissolving mother liquor of the catalyzer Recycling; the tail gas absorbed by hydrochloric acid is passed into the acid mist collection tower, and the hydrochloric acid acid mist mixed in the tail gas is collected to form acid droplets and then flow into the absorption...
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