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Preparation method of catalyst/adsorption material with diatomite as carrier

An adsorption material, diatomite technology, applied in chemical instruments and methods, separation methods, chemical/physical processes, etc., can solve the problems of large equipment, easy poisoning of adsorbents, complicated processes, etc., and achieve reasonable pore distribution and catalytic activity. The effect of improving, high catalytic activity

Inactive Publication Date: 2016-06-22
杭州最清环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the equipment is huge and the process is complicated. When there are colloidal substances or other impurities in the exhaust gas, the adsorbent is easy to be poisoned.

Method used

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  • Preparation method of catalyst/adsorption material with diatomite as carrier
  • Preparation method of catalyst/adsorption material with diatomite as carrier
  • Preparation method of catalyst/adsorption material with diatomite as carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1, a kind of preparation method of catalysis / adsorption material, carries out following steps successively:

[0059] 1), the diatomite is purified according to the above-mentioned method one, and the purified diatomite is obtained;

[0060] 2), at room temperature, weigh 3 g of purified diatomite, add 45 g of absolute ethanol, and stir magnetically (stirring time is 0.5 hour), thereby forming diatomite-absolute ethanol slurry;

[0061] Place the diatomite-dehydrated ethanol pulp on a magnetic stirrer, and under the action of magnetic stirring, add manganese nitrate aqueous solution 2ml (containing 3g manganese nitrate), alumina 0.3 g and 0.3g of glass fiber powder, then add dropwise 0.09g of 65% concentrated nitric acid and 20g of deionized water, and mix and stir for 24 hours;

[0062] 3), using deionized water to centrifugally wash the product of step 2) until the eluent is neutral; obtain the washed pulp;

[0063] 4) The above-mentioned washed pulp was d...

Embodiment 2

[0064] Embodiment 2, a kind of preparation method of catalysis / adsorption material, carries out following steps successively:

[0065] 1), the diatomite is purified according to the above-mentioned method one, and the purified diatomite is obtained;

[0066] 2) At room temperature, weigh 3 g of purified diatomite, add 45 g of absolute ethanol, and stir magnetically (stirring time is at least 0.5 hours), thereby forming a diatomite-absolute ethanol slurry;

[0067] Place the diatomite-dehydrated ethanol pulp on a magnetic stirrer, and under the action of magnetic stirring, add manganese nitrate aqueous solution 4ml (containing 6g manganese nitrate), aluminum oxide 0.3 g, 0.3g of glass fiber powder, then add dropwise 0.09g of 65% concentrated nitric acid and 20g of deionized water, and mix and stir for 24 hours;

[0068] 3), using deionized water to centrifugally wash the product of step 2) until the eluent is neutral; obtain the washed pulp;

[0069] 4) The above-mentioned wa...

Embodiment 3

[0070] Embodiment 3, a kind of preparation method of catalysis / adsorption material, carries out following steps successively:

[0071] 1), the diatomite is purified according to the above-mentioned method one, and the purified diatomite is obtained;

[0072] 2) At room temperature, weigh 3 g of purified diatomite, add 45 g of absolute ethanol, and stir magnetically (stirring time is at least 0.5 hours), thereby forming a diatomite-absolute ethanol slurry;

[0073] Place the diatomite-dehydrated ethanol pulp on a magnetic stirrer, and under the action of magnetic stirring, add manganese nitrate aqueous solution 6ml (containing 9g manganese nitrate), aluminum oxide 0.3 g, 0.3g of glass fiber powder, then add dropwise 0.09g of 65% concentrated nitric acid and 20g of deionized water, and mix and stir for 24 hours;

[0074] 3), using deionized water to centrifugally wash the product of step 2) until the eluent is neutral; obtain the washed pulp;

[0075] 4) The above-mentioned wa...

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Abstract

The invention discloses a preparation method of a catalyst / adsorption material with diatomite as a carrier, comprising: adding 15 to 20 parts of absolute ethanol to 1 part of purified diatomite, and adding 1-3 parts of metal compound, 0.1-0.3 part of alumina, 0.1-0.3 part of glass fiber, 0.02-0.04 part of nitric acid and 5-7 parts of deionized water are mixed and stirred; the resultant is centrifugally washed with deionized water; After washing, the pulp is first dried and then calcined; the catalyst / adsorption material is obtained. The catalytic / adsorbing material prepared by this method can use the adsorption capacity of diatomite to prolong the residence time of organic pollutants in the reactor, and at the same time, the supported metal oxide can produce a strong catalytic oxidation during the discharge process, thereby Increase the degree of oxidation of organic pollutants.

Description

technical field [0001] The invention belongs to the field of environmental materials, and specifically relates to a catalyst / adsorption material with diatomite as a carrier and a preparation method thereof. Background technique [0002] Volatile organic pollutants (VOCs) refer to organic compounds with a boiling point of 50°C to 260°C at room temperature. The main sources are: (1) Stationary sources: waste gas emitted by industries such as petrochemical, pharmaceutical, and paint production; (2) Mobile sources: exhaust gas emitted by vehicles such as vehicles. Although human-made VOCs in the atmosphere only account for about 15% of the total global exhaust emissions, most VOCs are toxic and even highly carcinogenic, posing a huge threat to human health. In addition, the emission of VOCs leads to the destruction of the ozone layer, aggravates the greenhouse effect, and can cause photochemical smog, which also causes immeasurable damage to the ecological environment. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/14B01J20/30B01J23/34B01J23/68B01D53/02B01D53/86B01D53/44
Inventor 郑欣丹吴国勋吴祖良
Owner 杭州最清环保科技有限公司
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