A kind of normal temperature dearsenic agent and its preparation method and application
A normal temperature, arsenic removal technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of low arsenic removal rate and low production capacity of arsenic removal agents , complex preparation process and other issues, to achieve good strength, avoid energy waste, and improve the effect of arsenic removal accuracy
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Embodiment 1
[0038] Embodiment 1, preparation of normal temperature arsenic removal agent:
[0039] 1) Weigh 30g of copper oxide, 20g of zinc oxide, 30g of active attapulgite clay, 5g of nickel oxide and 15g of spent catalyst and mix them, then knead for 45min to obtain a kneading material;
[0040] 2) Add 35g of methylcellulose to the kneading material (dry material) in step 1), and wet mix for 30 minutes until it is mixed and ground into a paste, put the paste on a small extruder, and extrude Ф4 bars ;
[0041] 3) Dry the Ф4 strips in step 2) at 110°C for 2 hours, and then roast at 400°C for 2 hours to obtain the normal temperature arsenic removal agent M1. It can be seen from observation that the appearance of the normal temperature arsenic removal agent M1 is smooth without cracks .
[0042] Carry out physical property test to above-mentioned arsenic removal agent, utilize ZQJ-Ⅱ intelligent granule strength testing machine (manufactured by Dalian Intelligent Testing Machine Factory) ...
Embodiment 2
[0043] Embodiment 2, preparation of normal temperature arsenic removal agent:
[0044] 1) Weighing 30g of copper oxide, 25g of zinc oxide, 25g of active attapulgite clay, 4g of lead oxide and 16g of spent catalyst agent were mixed, and then kneaded for 45min to obtain a kneaded material;
[0045] 2) Add 35g of silica sol to the kneading material (dry material) in step 1), and wet mix for 30 minutes until it is mixed and ground into a paste, put the paste on a small extruder, and extrude Ф4 bars;
[0046] 3) Dry the Ф4 strips in step 2) at 110°C for 2 hours, and then roast at 400°C for 2 hours to obtain the normal temperature arsenic removal agent M2. It can be seen from observation that the appearance of the normal temperature arsenic removal agent M2 is smooth without cracks .
[0047] Wherein, the particle size of the spent catalyst agent is not greater than 10 nm.
[0048] The physical properties of the above-mentioned arsenic removal agent were tested. The pressure test ...
Embodiment 3
[0049] Example 3, preparation of arsenic removal agent at normal temperature:
[0050] 1) Weighing 30g of copper oxide, 30g of zinc oxide, 20g of active attapulgite clay, 4g of nickel oxide and 16g of spent catalyst and mixing, then kneading for 45min to obtain a kneading material;
[0051] 2) Add 35g of methylcellulose to the kneading material (dry material) in step 1), and wet mix for 30 minutes until it is mixed and ground into a paste, put the paste on a small extruder, and extrude Ф4 bars ;
[0052] 3) Dry the Ф4 strips in step 2) at 110°C for 2 hours, and then roast at 400°C for 2 hours to obtain the room temperature arsenic removal agent M3. It can be seen that the appearance of the room temperature arsenic removal agent M3 is smooth without cracks .
[0053] The physical properties of the above-mentioned arsenic removal agent were tested. The pressure test strength of the arsenic removal agent was 73N / cm, and the bulk specific gravity was 0.68g / ml. The performance da...
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