Large-scale preparation method of high-stability caesium removing adsorbent, product of preparation method and application of product
An adsorbent and stable technology, applied in the field of large-scale preparation of adsorbents for removing cesium, can solve the problems of slow adsorption speed, easy pulverization, increased water turbidity and electrical conductivity, etc., to reduce emissions, reduce dosage, and achieve good adsorption. performance effect
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Embodiment 1
[0048] Example 1: Preparation of silica gel-loaded adsorbent and cesium removal performance
[0049] Preferably go out the higher silica gel Si-1 of mechanical strength, particle size is 0.5-2.0mm, prepare copper ferrocyanide potassium adsorbent on it, the steps are as follows:
[0050] (1) Loading of copper salt: first add pure water to No. 1 reactor and heat it to 80-100°C, add copper sulfate to it to dissolve to form a solution with a concentration of 10-50%; secondly, in the reactor Add silica gel particles Si-1 as a carrier, impregnate for 2-48 hours, and then separate the solid and liquid phases and dry to obtain the precursor Si-1-A loaded with copper sulfate.
[0051] (2) Preparation of transition metal-stabilized ferrocyanide adsorbent: first, add pure water to No. 2 reactor and heat it to 80-100°C, add sodium ferrocyanide to it, dissolve it and form a concentration of 10 -50% solution; secondly, the precursor Si-1-A loaded with copper sulfate obtained in step (1) is...
Embodiment 2
[0056] Example 2: Preparation of alumina-supported adsorbent and cesium removal performance
[0057] Preferably go out the aluminum oxide pellet Al-1 that mechanical strength is higher, particle size is 0.5-2.0mm, prepare zinc ferrocyanide potassium adsorbent on it, the steps are as follows:
[0058] (1) Loading of ferrocyanide: first, add pure water to No. 1 reactor and heat it to 80-100°C, add potassium ferrocyanide to it, and dissolve it to form a solution with a concentration of 10-50%; Next, add alumina pellets Al-1 into the reaction kettle as a carrier, impregnate for 2-48 hours, and then perform solid-liquid phase separation and dry in a constant temperature oven to obtain the precursor Al-1-A loaded with ferrocyanide.
[0059] (2) Preparation of transition metal-stabilized ferrocyanide adsorbent: first add pure water to No. 2 reactor and heat it to 80-100°C, then add zinc acetate to dissolve it and form a concentration of 10-50% solution; secondly, the ferrocyanide-lo...
Embodiment 3
[0065] Example 3: Preparation and performance of titanium oxide supported adsorbent
[0066] Preferably go out the titanium oxide pellet Ti-1 that mechanical strength is higher, particle size is 0.5-2.0mm, prepare cobalt potassium ferrocyanide adsorbent thereon, step is as follows:
[0067] (1) Loading of ferrocyanide: first, add pure water to No. 1 reactor and heat it to 80-100°C, add potassium ferrocyanide to it, and dissolve it to form a solution with a concentration of 10-50%; Next, titanium oxide pellets Ti-1 are added into the reaction kettle as a carrier, impregnated for 2-48 hours, and then solid-liquid phase separation is performed and dried in a constant temperature oven to obtain the precursor Ti-1-A loaded with ferrocyanide.
[0068] (2) Preparation of transition metal-stabilized ferrocyanide adsorbent: first add pure water to No. 2 reactor and heat it to 80-100°C, add cobalt nitrate to it, dissolve it and form a concentration of 10-50% Next, the precursor Ti-1-A ...
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