A preparation method for simultaneously removing hydrogen sulfide, phosphine and arsine adsorbent
A technology for hydrogen sulfide and phosphine, which is applied in the simultaneous removal of hydrogen sulfide, the preparation of arsine adsorbents, and the field of phosphine, can solve the problems that the preparation method of mesoporous silicon-based adsorbents has not been reported, and achieve high selectivity. High adsorption performance, large specific surface area, good removal effect
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Embodiment 1
[0024]Grind and sieve diatomite into 40-60 meshes, then wash 4-6 times with water until the supernatant is suspended without turbidity, and dry in a blast drying oven at 100°C for 5 hours; Stir and impregnate in a 1mol / L HCl solution for 30 minutes for 0.5 hours, then wash with distilled water until the pH is constant, filter and dry in a blast drying oven for 5 hours at 100°C; add the dried diatomaceous earth to the metal Saline solution (composed of 2% ferric nitrate by diatomite mass, 1% copper nitrate by diatomite mass, and 2% cobalt nitrate by diatomite mass) was ultrasonically immersed for 40 minutes, and then the impregnated diatomite was placed in Dry in a blast drying oven at 100°C for 5 hours, and then bake at 500°C for 3 hours; put the calcined diatomite into a 5% HCl solution and ultrasonically impregnate it for 0.5 hours (the temperature of immersion is 50 °C), and then the impregnated diatomite was dried in a blast drying oven at 100 °C for 5 hours to obtain a me...
Embodiment 2
[0026] Grind and sieve diatomite into 40-60 meshes, then wash 4-6 times with water until the supernatant is suspended without turbidity, and dry in a blast drying oven at 110°C for 6 hours; Stir and impregnate in a 2mol / L HCl solution for 40 minutes for 0.6 hours, then wash with distilled water until the pH is constant, filter and dry in a blast drying oven for 6 hours at 110°C; add the dried diatomaceous earth to the metal Saline solution (composed of 4% ferric nitrate by diatomite mass, 2% copper nitrate by diatomite mass, and 4% cobalt nitrate by diatomite mass) was ultrasonically immersed for 50 minutes, and then the impregnated diatomite was placed in Dry in a blast drying oven at 110°C for 6 hours, then bake at 600°C for 4 hours; put the calcined diatomite into 15% HNO 3 Ultrasonic immersion in the solution for 0.6 hours (the immersion temperature is 45°C), and then the impregnated diatomite was dried in a blast drying oven at 110°C for 6 hours to prepare the mesoporous ...
Embodiment 3
[0028] Grind and sieve diatomaceous earth into 40~60 meshes, then wash 4~6 times with water until the supernatant is suspended without turbidity, and dry in a blast drying oven at 120°C for 7 hours; Stir and impregnate in a 3mol / L HCl solution for 50 minutes for 0.7 hours, then wash with distilled water until the pH is constant, filter and dry in a blast drying oven at 120°C for 7 hours; add the dried diatomaceous earth to the metal Saline solution (composed of 6% ferric nitrate by diatomite mass, 3% copper nitrate by diatomite mass, and 6% cobalt nitrate by diatomite mass) was ultrasonically immersed for 60 minutes, and then the impregnated diatomite was placed in Dry in an air blast oven at 120°C for 7 hours, then bake at 450°C for 4.5 hours; put the calcined diatomite into 20% H 2 SO 4 Ultrasonic immersion in the solution for 0.7 hours (the immersion temperature is 40°C), and then the impregnated diatomaceous earth was dried in a blast drying oven at 120°C for 7 hours to p...
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