Mercury removal agent and preparation method thereof
A mercury removal agent and mercury removal technology, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve problems such as secondary pollution, low mercury removal efficiency, and unsatisfactory mercury removal performance, and achieve flexible carrier selection Effect
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Embodiment 1
[0034] A mercury removal agent comprising 90wt% active alumina carrier, 5wt% manganese dioxide and 5wt% cobalt oxide active component; the preparation method of this kind of mercury removal agent comprises the following steps:
[0035] (1) Select 40-60 mesh, the specific surface is 80m 2 / g, the pore volume is 0.1cm 3 / g activated alumina carrier 40g, put into 20ml containing 7.0g CoCl 2 ·6H 2 In the solution of O, immerse for 1 hour, after the above-mentioned impregnating solution is completely immersed in the carrier, take out the carrier;
[0036] (2) Dry the carrier obtained in step (1) at 110°C for 8 hours to remove the moisture in the carrier, and then put the dried activated alumina carrier loaded with cobalt chloride into the carrier containing 5.1gMnCl 2 4H 2 In the solution of O, soak for 24 hours, take out the carrier, dry at 120°C for 1 hour, and activate it by roasting at 400°C for 2 hours under aerobic conditions to decompose the chloride salt, and then obtai...
Embodiment 2
[0038] A mercury removal agent, including 56wt% of activated carbon carrier, 14wt% of copper oxide and 18wt% of manganese dioxide active components, 12wt% of NH 4 Cl modifying agent; the preparation method of this kind of mercury removal agent, comprises the steps:
[0039] (1) Take 40-60 mesh and the specific surface is 400m 2 / g, the pore volume is 1.0cm 3 / g of activated carbon carrier 40g into 15ml containing 30.5gCu(NO 3 ) 2 ·3H 2 In the solution of O, soak for 12 hours, after the above impregnation solution is completely immersed in the carrier, take out the carrier;
[0040] (2) Dry the carrier obtained in step (1) at 100°C for 5 hours, remove the moisture in the carrier, and then put the dried activated carbon carrier loaded with copper nitrate into 12ml containing 29.1gMnCl 2 4H 2 Immerse in the solution of O for 12 hours, take out the carrier, dry at 120°C for 6 hours, and activate it by roasting at 450°C for 3 hours under anaerobic conditions to decompose the ...
Embodiment 3
[0043] A mercury removal agent, including 60wt% titanium-containing activated alumina carrier, 22wt% copper oxide and 12wt% manganese dioxide active components, 6wt% NH 4 Br modifying agent; the preparation method of this kind of mercury removal agent, comprises the steps:
[0044] (1) Take 40-60 mesh and the specific surface is 240m 2 / g, the pore volume is 0.4cm 3 / g of titanium-containing activated alumina 40g put into 20ml contains 36.2g (CH 3 COO) 2 Cu·H 2 In the solution of O, immerse for 10 hours, after the above-mentioned impregnation solution is completely immersed in the carrier, the carrier is taken out;
[0045] (2) Dry at 110°C for 6 hours to remove the moisture in the carrier, and then put the dried titanium-containing activated alumina carrier loaded with copper acetate into 15ml containing 19.1gMnCl 2 4H 2 Immerse in the solution of O for 10 hours, take out the carrier, dry at 120°C for 6 hours, and then activate it by roasting at 400°C for 4 hours under ...
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