A method and device for recovering yellow phosphorus from phosphorus sludge using a plug flow reactor
A plug flow reactor, phosphorus sludge technology, applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve the problems of complex process operation, secondary pollution, high energy consumption and so on
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Embodiment 1
[0044] Take 1000 kg of phosphorus sludge, put the phosphorus sludge and water into the ultrasonic crushing preprocessor according to the mixing ratio of 1:1, control the ultrasonic frequency to 25KHZ, make the phosphorus sludge in the state of being isolated from the air, ultrasonically crush, disperse and emulsify for 3 hours, and then get processed Phosphorus mud mixture; the yellow phosphorus content in the phosphorus mud mixture after testing and processing is 55%. Then the crushed phosphorus mud mixture is introduced into the inner reaction layer of the plug flow reactor, and the temperature of the hot water in the outer temperature control layer is controlled to be 50° C. for 3 hours of micro-disturbance melting and stratification; and by controlling the temperature on the connecting port Open and close the valve to add hot water to the mixture, so as to ensure that the phosphorus mud is kept in a state of isolation from the air and fully melt to obtain a liquid yellow ph...
Embodiment 2
[0046] Take 1000 kg of phosphorus sludge, put the phosphorus sludge and water into the ultrasonic crushing preprocessor according to the mixing ratio of 1:1.5, control the ultrasonic frequency to 80KHZ, and make the phosphorus sludge ultrasonically crush, disperse and emulsify for 1.8 hours in an air-isolated state, and obtain Phosphorous mud mixture after treatment; the yellow phosphorus content in the treated phosphorus mud mixture is 45.3%. Then the crushed phosphorus mud mixture is introduced into the inner reaction layer of the plug flow reactor, and the temperature of the hot water in the outer temperature control layer is controlled to be 88° C., and the micro-disturbance melting stratification is carried out for 1.2 hours; The open and close valves add hot water to the mixture, so as to ensure that the phosphorus mud is kept in a state of isolation from the air and fully melt to obtain liquid yellow phosphorus mixture; finally, the obtained liquid yellow phosphorus mixt...
Embodiment 3
[0048] Take 1000 kg of phosphorus sludge, put the phosphorus sludge and water into the ultrasonic crushing preprocessor at a mixing ratio of 1:2, control the ultrasonic frequency to 100KHZ, and make the phosphorus sludge ultrasonically crush, disperse and emulsify for 1 hour in an air-isolated state, and then get processed Phosphorus mud mixture; the yellow phosphorus content in the phosphorus mud mixture after detection and treatment is 48.4%. Then the crushed phosphorous mud mixture is introduced into the inner reaction layer of the plug flow reactor, and the temperature of the hot water in the outer temperature control layer is controlled to be 60° C. in the micro-disturbance melting stratification for 2 hours; and by controlling the temperature on the connecting port Open and close the valve to add hot water to the mixture, so as to ensure that the phosphorus mud is kept in a state of isolation from the air and fully melt to obtain a liquid yellow phosphorus mixture; finall...
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