Adsorption material and method for removing nuclide silver in reactor coolant by using it
An adsorption material and reactor technology, applied in chemical instruments and methods, nuclear engineering, other chemical processes, etc., can solve the problems of a large amount of high-level waste liquid accumulation, increased radiation field strength, and a large number of other problems, and achieve large adsorption capacity and dispersion. The effect of good sex and simple operation
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Embodiment 1
[0030] Embodiment 1: Preparation of adsorbent material and its adsorption to nuclide silver in simulated coolant (1)
[0031] Weigh 50 mg of graphene oxide, dissolve it ultrasonically with 100 mL of ethylene glycol, add 0.25 g of ferric chloride and 0.5 g of polyethyleneimine (average molecular weight: 8000 Mw), and continue ultrasonication for 20 minutes. Afterwards, the mixed solution was transferred into a 200ml reaction kettle, sealed and placed in an oven at 180°C for 5 hours before the reaction was completed, and the product was washed and dried.
[0032] Take by weighing 25mg above-mentioned reaction product and add 50mL containing the boron of 1mg / L silver, lithium water, wherein boron concentration is 650mg / L (H 3 BO 3 ), the lithium concentration is 3.5mg / L (LiOH). Ultrasound for 20 minutes to make the adsorption material fully contact with the nuclide silver, let the mixed solution stand at room temperature for 30 minutes, and then use a magnet to separate the ads...
Embodiment 2
[0033] Embodiment 2: Preparation of adsorption material and its adsorption to nuclide silver in simulated coolant (two)
[0034] Weigh 200 mg of graphene oxide, dissolve it ultrasonically with 500 mL of ethylene glycol, add 0.5 g of ferric chloride and 1.5 g of polyethyleneimine (average molecular weight: 8000 Mw), and continue ultrasonication for 20 minutes. Afterwards, the mixed solution was transferred into a 1L reaction kettle, sealed and placed in an oven at 180°C, kept for 10 hours, and the reaction was completed, and the product was washed and dried.
[0035] Take by weighing 25mg above-mentioned reaction product and add 50mL containing the boron of 0.5mg / L silver, lithium water, wherein boron concentration is 1200mg / L (H 3 BO 3), the lithium concentration is 2.2mg / L (LiOH). Ultrasound for 10 minutes to fully contact the adsorption material with the nuclide silver, stir the mixture at room temperature (200 rpm) for 30 minutes, and then use a magnet to separate the ads...
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