A method for producing ultrapure ammonia
A technology of ultra-pure ammonia water and ultra-pure water, which is applied in the preparation/separation of ammonia, etc. It can solve the problems of huge investment in absorption and desorption equipment, potential safety hazards, high energy consumption and danger of distillation high-temperature operation, and achieve compact equipment structure , no discharge of three wastes, and the effect of meeting environmental protection requirements
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[0019] Example 1
[0020] A method for producing ultrapure ammonia water, the process is as follows figure 1 As shown, the method includes the following steps:
[0021] The ammonia gas volatilized from the liquid ammonia container 1 is input into the ultrasonic purification tower 2. The temperature of the ultrasonic purification tower is controlled to be ≥0℃, the pressure is controlled to be ≥0.08Mpa, and the targeted pretreatment agent persulfuric acid is added to the ultrasonic purification tower 2. Ammonium and ammonium persulfate are added in an amount of 0.01% of the weight of the ammonia gas passing through the ultrasonic purification tower, and are used to complex the volatile impurities in the ammonia gas that have an impact on the quality of the end product. A large number of fine ammonia particles are generated in the ultrasonic purification tower 2 through the ultrasonic atomizer 3, the particle size distribution of the ammonia particles is basically 0.1-30μm, and the w...
Example Embodiment
[0022] Example 2
[0023] A method for producing ultrapure ammonia water, the method includes the following steps:
[0024] The ammonia gas volatilized from the liquid ammonia container is input into the ultrasonic purification tower. The temperature of the ultrasonic purification tower is controlled to 20°C and the pressure is controlled to 0.3Mpa. Add the targeted pretreatment agent hydrogen peroxide and hydrogen peroxide to the ultrasonic purification tower The added amount is 0.1% of the weight of the ammonia gas passing through the ultrasonic purification tower, and is used to complex the volatile impurities in the ammonia gas that have an impact on the quality of the end product. A large number of fine ammonia particles are generated in the ultrasonic purification tower through the ultrasonic atomizer. The particle size distribution of the ammonia particles is basically 0.1-30μm. The amount of ammonia particles generated and the weight ratio of the ammonia gas passing through...
Example Embodiment
[0025] Example 3
[0026] A method for producing ultrapure ammonia water, the method includes the following steps:
[0027] The ammonia volatilized from the liquid ammonia container is input into the ultrasonic purification tower. The temperature of the ultrasonic purification tower is controlled to ≤50℃ and the pressure is controlled to ≤0.8Mpa. Add the targeted pretreatment agent phosphoric acid and the amount of phosphoric acid to the ultrasonic purification tower It is 1% of the weight of the ammonia gas passing through the ultrasonic purification tower, and is used to complex the volatile impurities in the ammonia gas that affect the quality of the end product. A large number of fine ammonia particles are produced in the ultrasonic purification tower through the ultrasonic atomizer. The particle size distribution of the ammonia particles is basically 0.1-30μm. The amount of ammonia particles generated and the weight ratio of the ammonia gas passing through the ultrasonic purif...
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