Method for preparing transitional metal ion Co modified adsorbent for purifying low-concentration phosphine
A transition metal ion and phosphine technology, applied in phosphine, chemical instruments and methods, and other chemical processes, can solve problems such as complex process, increased operation, difficult control, and easy fluctuation of dephosphorization efficiency. The effect of high adsorption activity
Examples
Embodiment 1
[0025] (1) After a certain amount of activated carbon carrier is ultrasonically washed with deionized water, it is placed in a constant temperature drying oven for drying, and is dried at a constant temperature of 110°C for 24 hours, then taken out and placed in a vacuum dryer, and naturally cooled to At room temperature, take it out and weigh it and record the data, repeat the above steps until the activated carbon carrier has a constant weight;
[0026] (2) Immerse the activated carbon carrier obtained in step (1) into cobalt chloride (CoCl 2 ) in an aqueous solution, ultrasonic impregnation at 20°C for 0.5h;
[0027] (3) Rinse the activated carbon carrier impregnated in step (2) with deionized water, and then put it into a constant temperature drying oven and dry it at 110° C. for 24 hours;
[0028] (4) Put the activated carbon carrier dried in step (3) into a muffle furnace for roasting, and roast at 400°C for 6h, then take it out and place it in a vacuum desiccator, and ...
Embodiment 2
[0031] (1) A certain amount of molecular sieve carrier is ultrasonically washed with deionized water, placed in a constant temperature drying oven, dried at a constant temperature of 110°C for 24 hours, then taken out and placed in a vacuum dryer, and cooled naturally under a vacuum of 0.1MPa to room temperature, take it out, weigh it and record the data, repeat the above steps until the molecular sieve carrier has a constant weight;
[0032] (2) The molecular sieve carrier obtained in step (1) is immersed in cobalt chloride (CoCl 2 ) in an aqueous solution, ultrasonic impregnation at 20°C for 0.5h;
[0033] (3) Rinse the molecular sieve carrier impregnated in step (2) with deionized water, and then put it into a constant temperature drying oven and dry it at 110° C. for 24 hours;
[0034] (4) Put the molecular sieve carrier dried in the step (3) into a muffle furnace for roasting, and roast at 400°C for 6h, then take it out and place it in a vacuum desiccator, and naturally ...
Embodiment 3
[0037] (1) After a certain amount of activated carbon fiber carrier is ultrasonically washed with deionized water, it is dried in a constant temperature drying oven, and dried at a constant temperature of 110°C for 24 hours, then taken out and placed in a vacuum dryer, and naturally dried under a vacuum of 0.1MPa Cool down to room temperature, take out and weigh and record the data, repeat the above steps until the activated carbon carrier has a constant weight;
[0038] (2) The activated carbon fiber carrier obtained in step (1) is immersed in cobalt chloride (CoCl 2 ) in an aqueous solution, ultrasonically impregnated at 20°C for 0.5h;
[0039] (3) Rinse the activated carbon fiber carrier impregnated in step (2) with deionized water, and then put it into a constant temperature drying oven and dry it at 110°C for 24 hours;
[0040] (4) Put the activated carbon fiber carrier dried in step (3) into a muffle furnace for roasting, and roast at 400°C for 6h, then take it out and ...
PUM
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Description
Claims
Application Information
- IPC
- B01J20/32; C01B25/06
- Inventors
- 唐晓龙; 余琼粉